http://lod.bco-dmo.org/id/dataset/3393
eng; USA
utf8
dataset
Highest level of data collection, from a common set of sensors or instrumentation, usually within the same research project
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
2010-12-09
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Niskin bottle hydrography from the CTD rosette from cruises KN193-03, B4-2008, B9-2008, and B10-2008 from the subpolar North Atlantic and Iceland Basin in 2008 (NAB 2008 project)
2011-05-10
publication
2011-05-10
revision
BCO-DMO Linked Data URI
2011-05-10
creation
http://lod.bco-dmo.org/id/dataset/3393
Mary Jane Perry
University of Maine
principalInvestigator
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
publisher
Cite this dataset as: Perry, M. (2011) Niskin bottle hydrography from the CTD rosette from cruises KN193-03, B4-2008, B9-2008, and B10-2008 from the subpolar North Atlantic and Iceland Basin in 2008 (NAB 2008 project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 10 May 2011) Version Date 2011-05-10 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/3393 [access date]
Niskin Bottle Hydrography from CTD Rosette Dataset Description: <p>This dataset includes nutrients, pigment concentrations, cell counts and composition, backscatter and spectral absorption coefficients for particles and phytoplankton.</p>
<p>Modification history:<br />
30 March 2011:<br />
Corrected time parameter (hhmm) caused by scripting error during conversion from Matlab to BCO-DMO</p>
<p>29 March 2011:<br />
variable bbp700 upgraded to six decimal places from four to increase resolution</p>
<p>07 January 2011:<br />
Four variables removed at P.I. request:<br />
ap748; ap765; aph748; aph765</p>
<p>10 May 2011<br />
KN193-03 bottle data updated from April 2011 newly-submitted data.</p>
<p>Variable changed were:<br />
allox,bac_het_cyt,carotene,chl_a,chl_a2,chl_a_tot,chl_a_tot_mol,chl_b,chl_b2,chl_c1_c2,chl_c3,chlide_a,<br />
ciliates,coccus_s_cyt,crypto,diadinox,diatom,diatox,dino_auto_mix,fucox,fucox_but,gyrox,lutein,<br />
nanoflag_het,neox,p_phide_a,p_phytin_a,peridinin,phaeo,phyto_oth,pnans,prasinox,violax,zeax</p> Methods and Sampling: <p>Acquisition details from each cruise are reported for that platform deployment.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-0628107 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=0628107
Funding provided by National Aeronautics & Space Administration (NASA) Award Number: NNX08AL92G
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-0628379 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=0628379
onGoing
Mary Jane Perry
University of Maine
207 581 3321
Darling Marine Center & School of Marine Sciences University of Maine
Walpole
ME
04573
USA
perrymj@maine.edu
pointOfContact
asNeeded
Dataset Version: 10 May 2011
Unknown
Cruise_ID
cast
date
time
lat
lon
depth_bottom
beamc_id
yrday
depth
temp
sal
sigma_0
O2_Winkler
O2_cal
O2_uncal
NO3_NO2
POC
PAR
SPAR
bbp700
beam_cp
beamc_id
Si_acid
allox
ap412
ap443
ap488
ap490
ap510
ap531
ap551
ap555
ap667
ap670
ap678
aph412
aph443
aph488
aph490
aph510
aph531
aph551
aph555
aph667
aph670
aph678
carotene
chl_a
chl_a2
chl_a_fluor
chl_a_tot
chl_a_tot_mol
chl_b
chl_b2
chl_c1_c2
chl_c3
chl_raw
chlide_a
ciliates
ciliates_C
coccus_s_cyt
coccus_s_cyt_C
crypto
crypto_C
diadinox
diatox
neox
p_phorbide_a
p_phytin_a
peridinin
phaeo
fucox
fucox_but
gyrox
lutein
prasinox
violax
zeax
bac_het_cyt
bac_het_cyt_C
diatom
diatom_C
nanoflag_het
nanoflag_het_C
dino_auto_mix
dino_auto_mix_C
phyto_oth
phyto_oth_C
MICROP_Total_C
NANOP_Total_C
Spectrophotomer-Varian Cary 50UV
theme
None, User defined
Cruise identifier
cast
date
time of day
latitude
longitude
depth_bottom
transmissometer id
year day (Day of Year, or day of year and decimal time)
depth
water temperature at measurement depth
salinity
sigma-theta
O2_Winkler
O2 calibrated
O2_uncal
nitrate plus nitrite
particulate organic Carbon (POC)
PAR
SPAR
bbp700
beam attenuation
Silicic acid
alloxanthin
ap412
ap443
ap488
ap490
ap510
ap531
ap551
ap555
ap667
ap670
ap678
aph412
aph443
aph488
aph490
aph510
aph531
aph551
aph555
aph667
aph670
aph678
carotene
chlorophyll a
divinyl chlorophyll a
chlorophyll-a; fluorometric method
sum of chlorophyll a like compounds
chl_a_tot_mol
chlorophyll b
divinyl chlorophyll b
chl_c1_c2
chlorophyll c3
chl_raw
chlorophyllide a
ciliate abundance
ciliate Carbon biomass
synechococcus abundance from flow cytometry
Synechococcus carbon
Cryptophytes
cryptophyte carbon
diadinoxanthin
diatoxanthin
neoxanthin
pheophorbide a
pheophytin a
peridinin
total phaeopigment
fucoxanthin
19-prime-butanoyloxyfucoxanthin
Gyroxanthin-Diester
lutein
prasinoxanthin
violaxanthin
zeaxanthin
bac_het_cyt
bac_het_cyt_C
diatom abundance
diatom Carbon biomass
heterotrophic nanoflagellate abundance excluding dinoflagellates
heterotrophic nanoflagellates Carbon biomass excluding dinoflagellates
dino_auto_mix
dino_auto_mix_C
other phytoplankton abundance
other phytoplankton biomass
MICROP_Total_C
NANOP_Total_C
featureType
BCO-DMO Standard Parameters
Spectrophotomer-Varian Cary 50UV
instrument
BCO-DMO Standard Instruments
KN193-03
B4-2008
B9-2008
B10-2008
service
Deployment Activity
subpolar North Atlantic, Iceland Basin, 60.7 to 61.7 degrees N, 25 to 27.7 degrees W
subpolar North Atlantic, Iceland Basin, 58.8° to 59.2° N 20° to 20.9° W
subpolar North Atlantic, Iceland Basin, 61.3° to 61.85° N 25.6° to 26.8°W
subpolar North Atlantic, Iceland Basin, 59° to 62° N 20.2° to 26.6° W
place
Locations
otherRestrictions
otherRestrictions
Access Constraints: none. Use Constraints: Please follow guidelines at: http://www.bco-dmo.org/terms-use Distribution liability: Under no circumstances shall BCO-DMO be liable for any direct, incidental, special, consequential, indirect, or punitive damages that result from the use of, or the inability to use, the materials in this data submission. If you are dissatisfied with any materials in this data submission your sole and exclusive remedy is to discontinue use.
Ocean Carbon and Biogeochemistry
http://us-ocb.org/
Ocean Carbon and Biogeochemistry
The Ocean Carbon and Biogeochemistry (OCB) program focuses on the ocean's role as a component of the global Earth system, bringing together research in geochemistry, ocean physics, and ecology that inform on and advance our understanding of ocean biogeochemistry. The overall program goals are to promote, plan, and coordinate collaborative, multidisciplinary research opportunities within the U.S. research community and with international partners. Important OCB-related activities currently include: the Ocean Carbon and Climate Change (OCCC) and the North American Carbon Program (NACP); U.S. contributions to IMBER, SOLAS, CARBOOCEAN; and numerous U.S. single-investigator and medium-size research projects funded by U.S. federal agencies including NASA, NOAA, and NSF.
The scientific mission of OCB is to study the evolving role of the ocean in the global carbon cycle, in the face of environmental variability and change through studies of marine biogeochemical cycles and associated ecosystems.
The overarching OCB science themes include improved understanding and prediction of: 1) oceanic uptake and release of atmospheric CO2 and other greenhouse gases and 2) environmental sensitivities of biogeochemical cycles, marine ecosystems, and interactions between the two.
The OCB Research Priorities (updated January 2012) include: ocean acidification; terrestrial/coastal carbon fluxes and exchanges; climate sensitivities of and change in ecosystem structure and associated impacts on biogeochemical cycles; mesopelagic ecological and biogeochemical interactions; benthic-pelagic feedbacks on biogeochemical cycles; ocean carbon uptake and storage; and expanding low-oxygen conditions in the coastal and open oceans.
OCB
largerWorkCitation
program
North Atlantic Bloom Experiment 2008
https://osprey.bco-dmo.org/project/2098
North Atlantic Bloom Experiment 2008
<p>NAB2008 was a process experiment designed to study an important component of the oceanic carbon system - the North Atlantic spring bloom. The phytoplankton bloom occurring each spring in the North Atlantic, drives the uptake of carbon dioxide and is an important component of the biological pump (Bagniewski et al., 2010). Previous studies in this region have shown the importance of small temporal and spatial scales, i.e. ecosystem patchiness, during the bloom, but were restricted by the limitations of ship-based sampling. Recent advances in autonomous platforms and sensors presented an opportunity to study this important event in a new way. In addition to deployment of a diverse suite of <em>in situ</em> sampling devices, NAB2008 was also a test-bed for developing the strategies and knowledge needed to successfully use new methods to drive the next generation of ocean observations.</p>
<p>In 2008, a coordinated deployment of 1 float, 4 Seagliders and 2 research vessels sampled the evolution of the North Atlantic spring bloom along and surrounding the nearly Lagrangian path followed by the float. The autonomous measurements were continuous through the experimental period, and included CTD, chlorophyll fluorescence, optical backscatter, and oxygen on all platforms; and nitrate, optical attenuation, and various radiance measurements on the float. Velocities were determined from the vehicle motion, with the float extending to a depth of 230 meters and gliders to 1,000 meters. The autonomous vehicles were deployed, rescued, and recovered on three cruises of the Icelandic vessel Bjarni Saemundsson. A 21-day cruise of the R/V Knorr conducted more detailed measurements during the peak of the bloom in May. The R/V Knorr sampling program included optical profiles, ADCP data and analysis of water samples for nutrients, particulate organic carbon, pigments, micro-plankton composition, complemented by guest investigator analyses. Data from both ships were used to calibrate and validate the autonomous measurements.</p>
<p><strong>References:</strong><br />
Bagniewski, W., Fennel, K., Perry, M. J., and D'Asaro, E. A. (2010) Optimizing models of the North Atlantic spring bloom using physical, chemical and bio-optical observations from a Lagrangian float, Biogeosciences Discuss., 7, pp. 8477-8520, doi:10.5194/bgd-7-8477-2010</p>
<p><a href="http://iop.apl.washington.edu/nab08/">NAB08 preprints</a></p>
<p>Click on image to view full size<br />
<a href="http://data.bco-dmo.org/NAB08/NAB2008_sampling_diagram_revised.png"><img alt="Sampling Diagram" src="https://datadocs.bco-dmo.org/d2/NAB08/NAB2008_sampling_diagram_revised.png" /></a></p>
NAB 2008
largerWorkCitation
project
eng; USA
oceans
subpolar North Atlantic, Iceland Basin, 60.7 to 61.7 degrees N, 25 to 27.7 degrees W; subpolar North Atlantic, Iceland Basin, 58.8° to 59.2° N 20° to 20.9° W; subpolar North Atlantic, Iceland Basin, 61.3° to 61.85° N 25.6° to 26.8°W; subpolar North Atlantic, Iceland Basin, 59° to 62° N 20.2° to 26.6° W
-27.598
-20.18
58.833
61.877
2008-04-03
2008-06-29
North Atlantic, 60 &deg; North
0
BCO-DMO catalogue of parameters from Niskin bottle hydrography from the CTD rosette from cruises KN193-03, B4-2008, B9-2008, and B10-2008 from the subpolar North Atlantic and Iceland Basin in 2008 (NAB 2008 project)
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
http://lod.bco-dmo.org/id/dataset-parameter/22863.rdf
Name: Cruise_ID
Units: dimensionless
Description: <p>deployment designation as in other files</p>
http://lod.bco-dmo.org/id/dataset-parameter/22864.rdf
Name: cast
Units: integer
Description: <p>CTD cast number (not station number)</p>
http://lod.bco-dmo.org/id/dataset-parameter/22865.rdf
Name: date
Units: YYMMDD
Description: <p>date (GMT) YYYYMMDD (year; month; day)</p>
http://lod.bco-dmo.org/id/dataset-parameter/22866.rdf
Name: time
Units: HHMM
Description: <p>time (GMT) HHMM (hours; minutes)</p>
http://lod.bco-dmo.org/id/dataset-parameter/22867.rdf
Name: lat
Units: decimal degrees
Description: <p>latitude</p>
http://lod.bco-dmo.org/id/dataset-parameter/22868.rdf
Name: lon
Units: decimal degrees
Description: <p>longitude</p>
http://lod.bco-dmo.org/id/dataset-parameter/22869.rdf
Name: depth_bottom
Units: meters
Description: <p>seafloor bottom depth</p>
http://lod.bco-dmo.org/id/dataset-parameter/22870.rdf
Name: beamc_id
Units: integer
Description: <p>C-Star serial number [284 or 1090]</p>
http://lod.bco-dmo.org/id/dataset-parameter/22871.rdf
Name: yrday
Units: dimensionless
Description: <p>time when sample was taken in decimal days since Jan-0-0000 (Matlab)</p>
http://lod.bco-dmo.org/id/dataset-parameter/22872.rdf
Name: depth
Units: meters
Description: <p>depth at which sample was taken</p>
http://lod.bco-dmo.org/id/dataset-parameter/22873.rdf
Name: temp
Units: degrees Celsius
Description: <p>temperature</p>
http://lod.bco-dmo.org/id/dataset-parameter/22874.rdf
Name: sal
Units: dimensionless
Description: <p>salinity</p>
http://lod.bco-dmo.org/id/dataset-parameter/22875.rdf
Name: sigma_0
Units: kilograms/meter^3
Description: <p>water potential density minus 1000</p>
http://lod.bco-dmo.org/id/dataset-parameter/22876.rdf
Name: O2_Winkler
Units: micromol/kilogram
Description: <p>dissolved oxygen concentration by Winkler method</p>
http://lod.bco-dmo.org/id/dataset-parameter/22877.rdf
Name: O2_cal
Units: micromol/kilogram
Description: <p>dissolved oxygen concentration; calibrated with Winkler O2 throughout cruise</p>
http://lod.bco-dmo.org/id/dataset-parameter/22878.rdf
Name: O2_uncal
Units: micromol/kilogram
Description: <p>dissolved oxygen concentration; not calibrated during cruise with Winkler O2</p>
http://lod.bco-dmo.org/id/dataset-parameter/22879.rdf
Name: NO3_NO2
Units: micromol/liter
Description: <p>nitrate plus nitrite</p>
http://lod.bco-dmo.org/id/dataset-parameter/22880.rdf
Name: POC
Units: milligramsreciprocal meter^3
Description: <p>particulate organic carbon</p>
http://lod.bco-dmo.org/id/dataset-parameter/22881.rdf
Name: PAR
Units: micromoles photon/reciprocal meter^2/second
Description: <p>water column photosynthetically active radiation (PAR)</p>
http://lod.bco-dmo.org/id/dataset-parameter/22882.rdf
Name: SPAR
Units: micromol photon/reciprocal meter^2/second
Description: <p>surface photosynthetically active radiation (sPAR)</p>
http://lod.bco-dmo.org/id/dataset-parameter/22883.rdf
Name: bbp700
Units: reciprocal meter
Description: <p>particulate backscattering coefficient (bbp)</p>
http://lod.bco-dmo.org/id/dataset-parameter/22884.rdf
Name: beam_cp
Units: reciprocal meter
Description: <p>particulate attenuation coefficient (cp)</p>
http://lod.bco-dmo.org/id/dataset-parameter/22885.rdf
Name: beamc_id
Units: integer
Description: <p>C-Star serial number [284 or 1090]</p>
http://lod.bco-dmo.org/id/dataset-parameter/22886.rdf
Name: Si_acid
Units: micromoles liter
Description: <p>silicic acid</p>
http://lod.bco-dmo.org/id/dataset-parameter/22887.rdf
Name: allox
Units: micrograms/liter
Description: <p>HPLC Alloxanthin</p>
http://lod.bco-dmo.org/id/dataset-parameter/22888.rdf
Name: ap412
Units: reciprocal meter
Description: <p>particulate absorption coefficient at 412 nm</p>
http://lod.bco-dmo.org/id/dataset-parameter/22889.rdf
Name: ap443
Units: reciprocal meter
Description: <p>particulate absorption coefficient at 443 nm</p>
http://lod.bco-dmo.org/id/dataset-parameter/22890.rdf
Name: ap488
Units: reciprocal meter
Description: <p>particulate absorption coefficient at 488 nm</p>
http://lod.bco-dmo.org/id/dataset-parameter/22891.rdf
Name: ap490
Units: reciprocal meter
Description: <p>particulate absorption coefficient at 490 nm</p>
http://lod.bco-dmo.org/id/dataset-parameter/22892.rdf
Name: ap510
Units: reciprocal meter
Description: <p>particulate absorption coefficient at 510 nm</p>
http://lod.bco-dmo.org/id/dataset-parameter/22893.rdf
Name: ap531
Units: reciprocal meter
Description: <p>particulate absorption coefficient at 531 nm</p>
http://lod.bco-dmo.org/id/dataset-parameter/22894.rdf
Name: ap551
Units: reciprocal meter
Description: <p>particulate absorption coefficient at 551 nm</p>
http://lod.bco-dmo.org/id/dataset-parameter/22895.rdf
Name: ap555
Units: reciprocal meter
Description: <p>particulate absorption coefficient at 555 nm</p>
http://lod.bco-dmo.org/id/dataset-parameter/22896.rdf
Name: ap667
Units: reciprocal meter
Description: <p>particulate absorption coefficient at 667 nm</p>
http://lod.bco-dmo.org/id/dataset-parameter/22897.rdf
Name: ap670
Units: reciprocal meter
Description: <p>particulate absorption coefficient at 670 nm</p>
http://lod.bco-dmo.org/id/dataset-parameter/22898.rdf
Name: ap678
Units: reciprocal meter
Description: <p>particulate absorption coefficient at 678 nm</p>
http://lod.bco-dmo.org/id/dataset-parameter/22899.rdf
Name: aph412
Units: reciprocal meter
Description: <p>phytoplankton absorption coefficient at 412 nm</p>
http://lod.bco-dmo.org/id/dataset-parameter/22900.rdf
Name: aph443
Units: reciprocal meter
Description: <p>phytoplankton absorption coefficient at 443 nm</p>
http://lod.bco-dmo.org/id/dataset-parameter/22901.rdf
Name: aph488
Units: reciprocal meter
Description: <p>phytoplankton absorption coefficient at 488 nm</p>
http://lod.bco-dmo.org/id/dataset-parameter/22902.rdf
Name: aph490
Units: reciprocal meter
Description: <p>phytoplankton absorption coefficient at 490 nm</p>
http://lod.bco-dmo.org/id/dataset-parameter/22903.rdf
Name: aph510
Units: reciprocal meter
Description: <p>phytoplankton absorption coefficient at 510 nm</p>
http://lod.bco-dmo.org/id/dataset-parameter/22904.rdf
Name: aph531
Units: reciprocal meter
Description: <p>phytoplankton absorption coefficient at 531 nm</p>
http://lod.bco-dmo.org/id/dataset-parameter/22905.rdf
Name: aph551
Units: reciprocal meter
Description: <p>phytoplankton absorption coefficient at 551 nm</p>
http://lod.bco-dmo.org/id/dataset-parameter/22906.rdf
Name: aph555
Units: reciprocal meter
Description: <p>phytoplankton absorption coefficient at 555 nm</p>
http://lod.bco-dmo.org/id/dataset-parameter/22907.rdf
Name: aph667
Units: reciprocal meter
Description: <p>phytoplankton absorption coefficient at 667 nm</p>
http://lod.bco-dmo.org/id/dataset-parameter/22908.rdf
Name: aph670
Units: reciprocal meter
Description: <p>phytoplankton absorption coefficient at 670 nm</p>
http://lod.bco-dmo.org/id/dataset-parameter/22909.rdf
Name: aph678
Units: reciprocal meter
Description: <p>phytoplankton absorption coefficient at 678 nm</p>
http://lod.bco-dmo.org/id/dataset-parameter/22910.rdf
Name: carotene
Units: micrograms/liter
Description: <p>HPLC alpha (eta-epsilon) + beta (beta-beta) Carotenes</p>
http://lod.bco-dmo.org/id/dataset-parameter/22911.rdf
Name: chl_a
Units: micrograms/liter
Description: <p>HPLC Chlorophyll a</p>
http://lod.bco-dmo.org/id/dataset-parameter/22912.rdf
Name: chl_a2
Units: micrograms/liter
Description: <p>HPLC Divinyl Chlorophyll a</p>
http://lod.bco-dmo.org/id/dataset-parameter/22913.rdf
Name: chl_a_fluor
Units: milligrams/meter^3
Description: <p>chlorophyll a - fluorometric analysis of acetone extract</p>
http://lod.bco-dmo.org/id/dataset-parameter/22914.rdf
Name: chl_a_tot
Units: micrograms/liter
Description: <p>HPLC total chlorophyll a; (HPLC Chl_a + Chlide_a)</p>
http://lod.bco-dmo.org/id/dataset-parameter/22915.rdf
Name: chl_a_tot_mol
Units: micromol/meter^3
Description: <p>HPLC total Chlorophyll a (Chl_a + Chlide_a) molar concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/22916.rdf
Name: chl_b
Units: micrograms/liter
Description: <p>HPLC Chlorophyll b</p>
http://lod.bco-dmo.org/id/dataset-parameter/22917.rdf
Name: chl_b2
Units: micrograms/liter
Description: <p>HPLC Divinyl Chlorophyll b</p>
http://lod.bco-dmo.org/id/dataset-parameter/22918.rdf
Name: chl_c1_c2
Units: micrograms/liter
Description: <p>HPLC Chlorophyll c1 + c2</p>
http://lod.bco-dmo.org/id/dataset-parameter/22919.rdf
Name: chl_c3
Units: micrograms/liter
Description: <p>HPLC Chlorophyll c3</p>
http://lod.bco-dmo.org/id/dataset-parameter/22920.rdf
Name: chl_raw
Units: volts
Description: <p>chlorophyll fluorescence (raw output minus dark counts)</p>
http://lod.bco-dmo.org/id/dataset-parameter/22921.rdf
Name: chlide_a
Units: micrograms/liter
Description: <p>HPLC Chlorophyllide a</p>
http://lod.bco-dmo.org/id/dataset-parameter/22922.rdf
Name: ciliates
Units: cells/milliliter
Description: <p>chlorophyll-containing ciliate abundance</p>
http://lod.bco-dmo.org/id/dataset-parameter/22923.rdf
Name: ciliates_C
Units: micrograms carbonliter
Description: <p>chlorophyll-containing Ciliates carbon</p>
http://lod.bco-dmo.org/id/dataset-parameter/22924.rdf
Name: coccus_s_cyt
Units: cells/milliliters
Description: <p>Synechococcus abundance</p>
http://lod.bco-dmo.org/id/dataset-parameter/22925.rdf
Name: coccus_s_cyt_C
Units: micrograms carbon/liter
Description: <p>Synechococcus carbon</p>
http://lod.bco-dmo.org/id/dataset-parameter/22926.rdf
Name: crypto
Units: cells/milliliter
Description: <p>cryptophyte abundance</p>
http://lod.bco-dmo.org/id/dataset-parameter/22927.rdf
Name: crypto_C
Units: micrograms carbon/liter
Description: <p>cryptophyte carbon</p>
http://lod.bco-dmo.org/id/dataset-parameter/22928.rdf
Name: diadinox
Units: micrograms/liter
Description: <p>HPLC Diadinoxanthin</p>
http://lod.bco-dmo.org/id/dataset-parameter/22929.rdf
Name: diatox
Units: micrograms per liter
Description: <p>HPLC Diatoxanthin</p>
http://lod.bco-dmo.org/id/dataset-parameter/22930.rdf
Name: neox
Units: micrograms/liter
Description: <p>HPLC Neoxanthin</p>
http://lod.bco-dmo.org/id/dataset-parameter/22931.rdf
Name: p_phorbide_a
Units: micrograms/liter
Description: <p>HPLC Pheophorbide a</p>
http://lod.bco-dmo.org/id/dataset-parameter/22932.rdf
Name: p_phytin_a
Units: micrograms/liter
Description: <p>HPLC Pheophytin a</p>
http://lod.bco-dmo.org/id/dataset-parameter/22933.rdf
Name: peridinin
Units: micrograms/liter
Description: <p>HPLC Peridinin</p>
http://lod.bco-dmo.org/id/dataset-parameter/22934.rdf
Name: phaeo
Units: milligrams/meter^3
Description: <p>pheopigment - fluorometric analysis of acetone extract</p>
http://lod.bco-dmo.org/id/dataset-parameter/22935.rdf
Name: fucox
Units: micrograms/liter
Description: <p>HPLC Fucoxanthin</p>
http://lod.bco-dmo.org/id/dataset-parameter/22936.rdf
Name: fucox_but
Units: micrograms/liter
Description: <p>HPLC 19'-Butanoyloxyfucoxanthin</p>
http://lod.bco-dmo.org/id/dataset-parameter/22937.rdf
Name: gyrox
Units: micrograms/liter
Description: <p>HPLC Gyroxanthin-Diester</p>
http://lod.bco-dmo.org/id/dataset-parameter/22938.rdf
Name: lutein
Units: micrograms/liter
Description: <p>HPLC Lutein</p>
http://lod.bco-dmo.org/id/dataset-parameter/22939.rdf
Name: prasinox
Units: micrograms/liter
Description: <p>HPLC Prasinoxanthin</p>
http://lod.bco-dmo.org/id/dataset-parameter/22940.rdf
Name: violax
Units: micrograms/liter
Description: <p>HPLC Violaxanthin</p>
http://lod.bco-dmo.org/id/dataset-parameter/22941.rdf
Name: zeax
Units: micrograms/liter
Description: <p>HPLC Zeaxanthin</p>
http://lod.bco-dmo.org/id/dataset-parameter/22942.rdf
Name: bac_het_cyt
Units: cells/milliliter
Description: <p>heterotrophic bacteria abundance</p>
http://lod.bco-dmo.org/id/dataset-parameter/22943.rdf
Name: bac_het_cyt_C
Units: micrograms carbon/liter
Description: <p>heterotrophic bacteria carbon</p>
http://lod.bco-dmo.org/id/dataset-parameter/22944.rdf
Name: diatom
Units: images containing diatoms per liter
Description: <p>diatom containing image abundance</p>
http://lod.bco-dmo.org/id/dataset-parameter/22945.rdf
Name: diatom_C
Units: micrograms carbon/liter
Description: <p>Diatom carbon</p>
http://lod.bco-dmo.org/id/dataset-parameter/22946.rdf
Name: nanoflag_het
Units: cells/milliliter
Description: <p>heterotrophic nanoflagellate abundance</p>
http://lod.bco-dmo.org/id/dataset-parameter/22947.rdf
Name: nanoflag_het_C
Units: micrograms carbon/liter
Description: <p>heterotrophic nanoflagellates carbon</p>
http://lod.bco-dmo.org/id/dataset-parameter/22948.rdf
Name: dino_auto_mix
Units: cells/milliliter
Description: <p>autotrophic and mixotrophic dinoflagellate abundance</p>
http://lod.bco-dmo.org/id/dataset-parameter/22949.rdf
Name: dino_auto_mix_C
Units: micrograms carbon/liter
Description: <p>Autotrophic and mixotrophic dinoflagellate carbon</p>
http://lod.bco-dmo.org/id/dataset-parameter/22950.rdf
Name: phyto_oth
Units: chlorophyll-containing microplankton per liter
Description: <p>microphytoplankton abundance for other chlorophyll-containing particles not classified as diatoms, dinoflagellates or ciliates</p>
http://lod.bco-dmo.org/id/dataset-parameter/22951.rdf
Name: phyto_oth_C
Units: micrograms carbon/liter
Description: <p>microphytoplankton carbon for other chlorophyll-containing particles not classified as diatoms or dinoflagellates or ciliates</p>
http://lod.bco-dmo.org/id/dataset-parameter/22952.rdf
Name: MICROP_Total_C
Units: micrograms carbon/liter
Description: <p>total microphytoplankton carbon (sum of diatom_C + dino_auto_mix_C + ciliate_C + phyto_oth_C)</p>
http://lod.bco-dmo.org/id/dataset-parameter/22953.rdf
Name: NANOP_Total_C
Units: micrograms carbon/liter
Description: <p>sum of cell carbon for photosynthetic picoeukaryotes + Synechococcus + cryptophytes (pnans + coccus_s_cyt + crypto)</p>
GB/NERC/BODC > British Oceanographic Data Centre, Natural Environment Research Council, United Kingdom
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
570400
https://datadocs.bco-dmo.org/file/B11vMW2UPK6Zk5/Niskin.csv
Niskin.csv
Primary data file for dataset ID 3393
download
https://osprey.bco-dmo.org/dataset/3393/data/download
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dataset
<p>Acquisition details from each cruise are reported for that platform deployment.</p>
from Cruise: KN193-03 <p>The WHOI CTD Rosette on the R/V Knorr was equipped with the following sensors. Sensor owner is identified in parenthesis (WHOI or Perry):</p>
<p>Sea-Bird Electronics 11+ CTD deck unit (WHOI);<br />
Sea-Bird Electronics 9+ CTD with Dual SBE3T/SBE4C temperature/conductivity sensors (WHOI);<br />
24-bottle Rosette with 10-liter bottles (WHOI);<br />
Sea-Bird Electronics 43 oxygen sensor (WHOI);<br />
WET Labs ECO FLNTU, measuring chlorophyll fluorescence with excitation at 470 nm and emission at 695 nm and volume scattering function at 140° and 700 nm (Perry);<br />
WET Labs C-Star transmissometer, measuring transmission at 653 nm (s/n 284, loaned to Perry; s/n 1090, Perry);<br />
WET Labs CDOM ECO fluorometer – measuring colored dissolved organic material (CDOM) fluorescence with excitation at 370 nm and emission at 460 nm (loaned to Perry);<br />
Seapoint Turbidity Meter measuring volume scattering function over a wide angle (15 – 150º) at 880 nm (WHOI);<br />
Biospherical Instruments underwater QSP2300 sensor, measuring scalar underwater photosynthetically active radiation (PAR; Perry);<br />
Biospherical Instruments surface QSR-240 Quantum Scalar Reference Sensor providing surface photosynthetically active radiation (sPAR; WHOI).</p>
<p>For more details, see sensor set up and instrument calibration factors document (<a href="http://data.bco-dmo.org/NAB08/Knorr19303_PsaReport.txt">Knorr19303_PsaReport.txt</a>) contributed by original investigators.</p>
<p>CTD data are reported as cast number and not as station number.</p>
<p>CTD Rosette system profiled at 0.5 m s-1 between the surface and 200 m, and at 1 m s-1 below 200 m.</p>
<p>Bottles were fired on the upcasts, 60 s after the CTD stopped. Sensor data are averages of a 30-s stationary period immediately before the bottle was fired.</p>
<p>On CTD casts 16, 17, 59, 61, 63, 82, 109 and 124, the pump associated with the Oxygen SBE43 sensor failed, resulting in partial or total removal of oxygen data from the dataset (parameter name O2_cal). For those casts with pump failure, temperature and salinity data from the second CT sensors were used.</p>
<p>WET Labs C-Star s/n 284 was used on cruise B200804 (deployment cruise on R/S Bjarni Saemundsson) and the first part of KN19303 (process cruise). It flooded and was replaced with C-Star s/n 1090 for the remainder of the process cruise (it was also used on the last R/S Bjarni Saemundsson cruise, B200810). Data (parameter name beam_cp) associated with malfunctioning and flooded C-Star s/n 284 have been removed from following casts: 13, 25–30 and 43. The parameter beamc_id indicates which C-Star was used (s/n 284 or 1090). Cross calibration of C-Stars across different cruises is discussed below, under Data Processing.</p>
from Cruise: B4-2008 <p>CTD Rosette deployed from the R/S Bjarni Saemundsson was equipped with following sensors:<br />
NOTE: sensor owner is identified in parenthesis (Marine Research Institute or Perry).</p>
<p>Sea-Bird Electronics 11+ CTD deck unit (Marine Research Institute);<br />
Sea-Bird Electronics 9+ CTD (Marine Research Institute);<br />
Sea-Bird Electronics 43 oxygen sensor (Marine Research Institute);<br />
WET Labs ECO FLNTU, measuring chlorophyll fluorescence with excitation at 470 nm and emission at 695 nm and volume scattering function at 140° and 700 nm (Perry); WET Labs C-Star transmissometer, measuring transmission at 653 nm (s/n 284, loaned to Perry);<br />
Biospherical Instruments underwater QSP2300 sensor, measuring scalar underwater photosynthetically active radiation (PAR; Perry).</p>
<p>For more details, see sensor set up and instrument calibration factors document: <a href="http://data.bco-dmo.org/NAB08/b200804_PsaReport.txt">b200804_PsaReport.txt</a></p>
<p>WET Labs C-Star s/n 284 was used on cruise B200804 (deployment cruise on R/S Bjarni Saemundsson). The parameter name beamc_id indicates that C-Star s/n 284 was used for this cruise. Cross calibration of C-Star sensors across different cruises is discussed under Data Processing.</p>
from Cruise: B9-2008 <p>CTD rosette deployed from the R/S Bjarni Saemundsson was equipped with following sensors; sensor owner is identified in parenthesis (Marine Research Institute or Perry):</p>
<p>Sea-Bird Electronics 11+ CTD deck unit (Marine Research Institute);<br />
Sea-Bird Electronics 9+ CTD (Marine Research Institute);<br />
Sea-Bird Electronics 43 oxygen sensor (Marine Research Institute);<br />
WET Labs ECO FLNTU, measuring chlorophyll fluorescence with excitation at 470 nm and emission at 695 nm and volume scattering function at 140° and 700 nm (Perry);<br />
Biospherical Instruments underwater QSP2300 sensor, measuring scalar underwater photosynthetically active radiation (PAR; Perry).</p>
<p>For more details, see sensor set up and instrument calibration factors document: <a href="http://data.bco-dmo.org/NAB08/b200809_PsaReport.txt">b200809_PsaReport.txt </a></p>
from Cruise: B10-2008 <p>CTD rosette deployed from the R/S Bjarni Saemundsson was equipped with following sensors. Sensor owner is identified in parenthesis (Marine Research Institute or Perry):</p>
<p>Sea-Bird Electronics 11+ CTD deck unit (Marine Research Institute);<br />
Sea-Bird Electronics 9+ CTD (Marine Research Institute);<br />
Sea-Bird Electronics 43 oxygen sensor (Marine Research Institute);<br />
WET Labs ECO FLNTU, measuring chlorophyll fluorescence with excitation at 470 nm and emission at 695 nm and volume scattering function at 140° and 700 nm (Perry);<br />
WET Labs C-Star transmissometer, measuring transmission at 653 nm (s/n 284, loaned to Perry);<br />
Biospherical Instruments underwater QSP2300 sensor, measuring scalar underwater photosynthetically active radiation (PAR; Perry).</p>
<p>For more details, see sensor set up and instrument calibration factors document (<a href="http://data.bco-dmo.org/NAB08/b200810_PsaReport.txt">b200810_PsaReport.txt</a>) contributed by original investigators.</p>
Specified by the Principal Investigator(s)
<p>Data processing and analysis details from each cruise are reported for that platform deployment.</p>
from Cruise: KN193-03 <p>Temperature and salinity (parameter names temp and sal): The CTD had dual CT sensors. For profiles where the two sensors agreed, a 51- (2.1 s) point median filter was applied to the mean of the two sensors. For profiles or regions of the profile where the two sensors disagreed, data from the sensor with the lesser variability was chosen and a 101-point (4.2 s) median filter was applied to only that sensor. Further manual smoothing was performed for a few casts. For more details on temperature and salinity processing, see <a href="http://data.bco-dmo.org/NAB08/Ship_TS_despiking-NAB08.pdf">Ship_TS_despiking-NAB08.pdf</a></p>
<p>Dissolved oxygen, O2 (parameter name O2_cal): The sensor was calibrated immediately before the cruise. The factory calibration was applied to SBE43 oxygen sensor output and data were converted to µmol kg-1 and aligned with Winkler O2 measurements (included in bottle file, KN19303_bottle_file.mat). A time-dependent quadratic correction was applied to the SBE data, with resulting measurement error of 3.2 µmol kg-1. For more details, see <a href="http://data.bco-dmo.org/NAB08/Oxygen_Calibration-NAB08.pdf">Oxygen_Calibration-NAB08.pdf</a></p>
<p>Particulate attenuation coefficient, cp (parameter name beam_cp): The factory calibration was used to convert C-Star s/n 1090 voltage to particulate attenuation coefficient, cp (m-1); the calibration factor did not change between pre-cruise and post-cruise factory calibration. C-Star s/n 284 was cross calibrated with C-Star s/n 1090 through a series of simultaneous ship/Biofloat48 calibration profiles. The final products for all three C-Stars are cross-calibrated cp coefficients with units of m-1. Complete details of the transmissometer intercalibration procedure are in C-Star calibration report (<a href="http://data.bco-dmo.org/NAB08/C-Star_Calibration-NAB08.pdf">C-Star_Calibration-NAB08.pdf</a>).</p>
<p>Particulate backscattering coefficient, bbp (parameter name bbp700): Backscattering voltage was converted to β at 140° by subtracting dark voltages (median in-situ dark voltage, 0.078 V) and multiplying by factory calibration scale factors, modified based on measurements and calculations of Sullivan et al. (subm.). The calibration factor did not change between pre-cruise and post-cruise factory calibration. β at 140° was converted to bbp (m-1) by subtracting β of seawater (Zhang et al., 2009) and multiplying by 2πχ (where χ = 1.132). See calibration report for more details: <a href="http://data.bco-dmo.org/NAB08/Backscatter_Calibration-NAB08.pdf">Backscatter_Calibration-NAB08.pdf</a></p>
<p>[Note on conversion of bbp700 to POC: Ship-based bbp estimates over the entire experiment were ~20% higher on the CTD downcasts than the upcasts. This systematic difference may be due to the optical properties of aggregates (Briggs, 2010), but remains under investigation. Stationary bbp measurements and POC contained in this bottle file cannot be directly applied to the downcast bbp measurements in the CTD data sets. However, a correction is included in the CTD data sets (KN19303_castXXX_1m_down.mat and KN19303_castXXX_down.mat) that converts CTD bbp from the downcast to POC. For more details, see <a href="http://data.bco-dmo.org/NAB08/POC_cp_bbp_Calibration-NAB08.pdf">POC_cp_bbp_Calibration-NAB08.pdf</a>.]</p>
<p>Chlorophyll fluorescence (parameter name chl_raw) is reported as the raw instrument voltage output minus dark counts (median in situ dark voltage = 0.083 volts).</p>
<p>Surface photosynthetically active radiation (parameter name SPAR): The sensor was new and calibrated before the cruise. Calibration coefficients for surface PAR sensor were incorrect in the original SBE configuration file. The incorrect coefficients were removed in the post processing and correct coefficients were applied to the data. For more details, see <a href="http://data.bco-dmo.org/NAB08/Radiometry_and_PAR_Calibration-NAB08.pdf">Radiometry_and_PAR_Calibration-NAB08.pdf</a></p>
<p>Water column photosynthetically active radiation (parameter name PAR): Reported values for water column PAR might have a positive bias of ~0.08 µmol photon m^-2 s^-1 based on discrepancies between factory calibration sheet and value used in the SBE configuration file. This error is very small and usually less than or similar to calibration associated error, as noted in the factory calibrations. The sensor was new and freshly calibrated before the 1 April cruise on the R/S Bjarni Saemundsson (cruise B200804). For more details, see <a href="http://data.bco-dmo.org/NAB08/Radiometry_and_PAR_Calibration-NAB08.pdf">Radiometry_and_PAR_Calibration-NAB08.pdf</a></p>
<p>Dissolved oxygen, O2 (parameter name O2_Winkler): Water samples were collected and pickled immediately after Niskin bottles were brought on deck. Samples were analyzed with the Winkler method, using visual determination of the titration endpoint, following WOCE (Culberson, 1991) and JGOFS (Knap et al., 1996) procedures. For additional details on laboratory analysis of discrete water samples see: <a href="http://data.bco-dmo.org/NAB08/Laboratory_analysis_report-NAB08.pdf">Laboratory_analysis_report-NAB08.pdf</a></p>
<p>Nutrients (parameter names NO3_NO2 and Si_acid): Nutrient samples for nitrate plus nitrite (NO3-+ NO2-) and silicic acid (Si(OH4)) were collected in acid-washed LDPE bottles; unfiltered samples were frozen immediately and stored for up to 8 mo. Samples were thawed at room temperature in the dark for 24 h and vigorously vortexed (Gordon et al., 1993). Samples were analyzed with a Lachat Quickchem 8000 Flow Injection Analysis System using standard absorptiometric techniques (Smith and Bogren, 2001; Wolters, 2002; QuikChemâMethod 31-107-04-1-C for nitrate plus nitrite; QuikChemâMethod 31-114-27-1-B for silicic acid). All Lachat spectra were manually inspected for irregularities in baseline or the presence of bubbles. Any offending samples were rejected. Profiles of silicic acid and nitrate concentrations for all casts were also examined, following the recommendation of the IODE workshop on quality control of chemical oceanographic data (IOC, 2010). Concentrations that were clearly out of range without temperature or salinity intrusions were rejected. Phosphate baselines as a whole were not sufficiently stable to be accepted and hence phosphate data are not reported. For additional details on laboratory analysis of discrete water samples see: <a href="http://data.bco-dmo.org/NAB08/Laboratory_analysis_report-NAB08.pdf">Laboratory_analysis_report-NAB08.pdf</a></p>
<p>Fluorometric pigments (parameter names chl_a_fluor and phaeo): Water samples for fluorometric analysis of chlorophyll and pheopigments were filtered through Whatman GF/F filters. Triplicate water samples were collected at 10 m. Filters were extracted in 5 ml of 90% acetone at -20° C for 24 h and read on a Turner Designs Model 10-AU Digital fluorometer. The fluorometer was calibrated before and after the field program with Turner Designs chlorophyll standards. Chlorophyll and pheopigment were determined following JGOFS protocol procedures (Knap et al., 1996). For additional details on laboratory analysis of discrete water samples see: <a href="http://data.bco-dmo.org/NAB08/Laboratory_analysis_report-NAB08.pdf">Laboratory_analysis_report-NAB08.pdf</a></p>
<p>Particulate organic carbon (parameter name POC): Samples were collected from Niskin bottles using a sampling bell to minimize particle contamination from air. They were immediately filtered, using closed bottles fitted with Biochem Fluidics caps with 2 tubing ports, through a Millipore Swinnex in-line filter holder onto pre-combusted Whatman GF/F filters. All plastics were washed in RBS. Samples were stored frozen for up to 5 mo. Before analysis, samples were dried at 50 °C for 4 h, fumed with hydrochloric acid (HCl, 11.65 N) for 12 h, and stored in a desiccator for up to 12 h. Filters were rolled and placed in pre-combusted tin cups shortly before analysis on a Perkin Elmer 2400CHN analyzer (Knap et al., 1996). For additional details on laboratory analysis of discrete water samples see:<a href="http://data.bco-dmo.org/NAB08/Laboratory_analysis_report-NAB08.pdf">Laboratory_analysis_report-NAB08.pdf</a></p>
<p>HPLC pigment samples (see various parameter names): Water samples were filtered onto Whatman GF/F filters and preserved in -80°C (liquid nitrogen) until analysis. Samples were stored for up to 5 mo. HPLC analysis was performed by Horn Point laboratories using a methanol-based reversed-phase gradient C8 chromatography column system and appropriate standards (Hooker et al., 2009; Van Heukelem and Thomas, 2001). For additional details on laboratory analysis of discrete water samples see: <a href="http://data.bco-dmo.org/NAB08/Laboratory_analysis_report-NAB08.pdf">Laboratory_analysis_report-NAB08.pdf</a></p>
<p>Particulate and phytoplankton absorption coefficients (parameter names ap(λ) and aph(λ): Water samples for absorption spectra were filtered onto Whatman GF/F filters and scanned at sea on a Varian Cary 50 UV-Visible Spectrophotometer with a xenon flash lamp and a 1.5nm slit width for measurement of total particulate absorption spectra, ap(λ) (Mitchell and Kiefer, 1988). Filters were subsequently extracted in methanol and re-analyzed to determine residual detrital particulate absorption, ad(λ); the difference spectra are reported as phytoplankton absorption spectra, aph(λ) (Kishino et al., 1985). For additional details on laboratory analysis of discrete water samples see: <a href="http://data.bco-dmo.org/NAB08/Laboratory_analysis_report-NAB08.pdf">Laboratory_analysis_report-NAB08.pdf</a></p>
<p>Plankton cell counts (various parameter names designated with broad taxonomic group name): Plankton cell numbers were determined at sea. Picophytoplankton were analyzed with a FACScan flow cytometer with chlorophyll a and phycoerythrin fluorescence as discriminators for three groups: photosynthetic eukaryotic nanophytoplankton (parameter name pnans), Synechococcus (parameter name coccus_s_cyt), and cryoptophytes (parameter name crypto). Heterotrophic bacteria (parameter name bac_het_cyt) were stained with PicoGreen (Veldhuis et al. 1997) and heterotrophic nanoprotists (parameter name nanoflag_het) were stained with LysoTracker Green (Rose et al., 2004) before flow cytometric analysisMicroplankton digital images of single cells, chains and colonies were collected with a FlowCAM; image collection was triggered by chlorophyll a fluorescence. Microplankton were classified into four super classes: 1) diatoms (parameter name diatom), including centrics, pennates, Guinardia, Thallasionema, Rhizosolenia and Chaetoceros); 2) photosynthetic and mixotrophic dinoflagellates (parameter name dino_auto_mix, including Ceratium and Dinophysis); 3) chlorophyll-containing ciliates (parameter name ciliate); and 4) other chlorophyll-containing microplankton not classified as diatoms, dinoflagellates or ciliates (parameter name phyto_oth). Dinoflagellates and ciliates are reported as cells per liter. Since diatoms and other microplankton are not always present as individual cells (e.g., diatom chains), units reported are number of images containing diatoms or chlorophyll-containing microplankton per liter; these images may contain a single cell, a chain of cells or a colony.For additional details on phytoplankton analysis from discrete water samples see: <a href="http://data.bco-dmo.org/NAB08/Phytoplankton_Carbon-NAB08.pdf">Phytoplankton_Carbon-NAB08.pdf</a></p>
<p> Plankton carbon (various parameter names designated with broad taxonomic group name_C): Plankton cell carbon was determined from cell counts and volumes at sea. Picophytoplankton, bacteria and heterotrophic nanoprotists were counted as described for flow cytometric plankton cell counts. Cell size for all these groups was determined from forward scatter. Size and scatter relationships were established with standard microbeads and algal cultures using a Coulter Counter. Cell carbon was estimated from cell size using the biomass algorithm of Verity et al. (1992). Microplankton data were collected with a FlowCAM as described under plankton cell counts. Biovolumes were determined for each of four groups listed under plankton cell counts, based on Sieracki et al. (1989). Carbon was computed based on Menden-Deuer and Lessard (2000). For additional details see: <a href="http://data.bco-dmo.org/NAB08/Phytoplankton_Carbon-NAB08.pdf">Phytoplankton_Carbon-NAB08.pdf.</a></p>
from Cruise: B4-2008 <p>CTD data are reported as cast number and not as station number.</p>
<p>Temperature and salinity (parameter names temp and sal): On the R/S Bjarni Saemundsson cruises, only one CTD unit was present, so salinity and temperature were de-spiked using a 21-point (3.5 s) median filter. An additional 81-point (13 s) median filter was applied where the signal was particularly variable. For more details on temperature and salinity processing, see <a href="http://data.bco-dmo.org/NAB08/Ship_TS_despiking-NAB08.pdf">Ship_TS_despiking-NAB08.pdf</a>.</p>
<p>Dissolved oxygen, O2 (parameter name O2_uncal): The sensor was calibrated immediately before the cruise. The factory calibration was applied to SBE43 oxygen sensor voltage, with units of µmol kg-1. Although the sensor was calibrated immediately before the cruise, the absolute concentrations were not verified by Winkler oxygen.</p>
<p>Particulate attenuation coefficient, cp (parameter name beam_cp): C-Star s/n 284 did not have a recent factory calibration. On the subsequent R/V Knorr cruise in May, it was cross calibrated with the newly calibrated C-Star s/n 1090 through a series of simultaneous ship/Biofloat48 calibration profiles. The final products for all three C-Stars are cross-calibrated cp coefficients with units of m-1. Complete details of the transmissometer intercalibration procedure are in C-Star calibration report (<a href="http://data.bco-dmo.org/NAB08/C-Star_Calibration-NAB08.pdf">C-Star_Calibration-NAB08.pdf</a>).</p>
<p>Particulate backscattering coefficient, bbp (parameter name bbp700): Backscattering voltage was converted to β at 140° by subtracting dark voltages (median in-situ dark voltage, 0.078 V) and multiplying by factory calibration scale factors, modified based on measurements and calculations of Sullivan et al. (subm.). The calibration factor did not change between pre-cruise and post-cruise factory calibration. β at 140° was converted to bbp (m-1) by subtracting β of seawater (Zhang et al., 2009) and multiplying by 2π (where π = 1.132). See calibration report for more details: <a href="http://data.bco-dmo.org/NAB08/Backscatter_Calibration-NAB08.pdf">Backscatter_Calibration-NAB08.pdf</a>.</p>
<p>Chlorophyll fluorescence (parameter name chl_raw) is reported as the raw instrument voltage output minus dark voltage (median in situ dark voltage = 0.083 volts.</p>
<p>Water column photosynthetically active radiation (parameter name PAR): The sensor was new and freshly calibrated before the cruise. For more details, see <a href="http://data.bco-dmo.org/NAB08/Radiometry_and_PAR_Calibration-NAB08.pdf">Radiometry_and_PAR_Calibration-NAB08.pdf</a>.</p>
<p>Nutrients (parameter names NO3_NO2 and Si_acid): Nutrient samples for nitrate plus nitrite (NO3-+ NO2-) and silicic acid (Si(OH4)) were collected in acid-washed LDPE bottles; unfiltered samples were frozen immediately and stored for up to 8 mo. Samples were thawed at room temperature in the dark for 24 h and vigorously vortexed (Gordon et al., 1993). Samples were analyzed with a Lachat Quickchem 8000 Flow Injection Analysis System using standard absorptiometric techniques (Smith and Bogren, 2001; Wolters, 2002; QuikChem Method 31-107-04-1-C for nitrate plus nitrite; QuikChem Method 31-114-27-1-B for silicic acid). All Lachat spectra were manually inspected for irregularities in baseline or the presence of bubbles. Any offending samples were rejected. Profiles of silicic acid and nitrate concentrations for all casts were also examined, following the recommendation of the IODE workshop on quality control of chemical oceanographic data (IOC, 2010). Concentrations that were clearly out of range without temperature or salinity intrusions were rejected. Phosphate baselines as a whole were not sufficiently stable to be accepted and hence phosphate data are not reported. For additional details on laboratory analysis of discrete water samples see: <a href="http://data.bco-dmo.org/NAB08/Laboratory_analysis_report-NAB08.pdf">Laboratory_analysis_report-NAB08.pdf</a>.</p>
<p>Fluorometric pigments (parameter names chl_a_fluor and phaeo): Water samples for fluorometric analysis of chlorophyll and pheopigments were filtered through Whatman GF/F filters. Filters were extracted in 5 ml of 90% acetone at -20? C for 24 h and read on a Turner Designs Model 10-AU Digital fluorometer. The fluorometer was calibrated before and after the field program with Turner Designs chlorophyll standards. Chlorophyll and pheopigment were determined following JGOFS protocol procedures (Knap et al., 1996). For additional details on laboratory analysis of discrete water samples see: <a href="http://data.bco-dmo.org/NAB08/Laboratory_analysis_report-NAB08.pdf">Laboratory_analysis_report-NAB08.pdf</a>.</p>
<p>Particulate organic carbon (parameter name POC): Samples were collected from Niskin bottles using a sampling bell to minimize particle contamination from air. They were immediately filtered, using closed bottles fitted with Biochem Fluidics caps with 2 tubing ports, through a Millipore Swinnex in-line filter holder onto pre-combusted Whatman GF/F filters. All plastics were washed in RBS. Samples were stored frozen for up to 5 mo. Before analysis, samples were dried at 50°C for 4 h, fumed with hydrochloric acid (HCl, 11.65 N) for 12 h, and stored in a desiccator for up to 12 h. Filters were rolled and placed in pre-combusted tin cups shortly before analysis on a Perkin Elmer 2400CHN analyzer (Knap et al., 1996). For additional details on laboratory analysis of discrete water samples see: <a href="http://data.bco-dmo.org/NAB08/Laboratory_analysis_report-NAB08.pdf">Laboratory_analysis_report-NAB08.pdf</a>.</p>
<p>HPLC pigment samples (see various parameter names) were filtered onto Whatman GF/F filters and preserved in -80°C (liquid nitrogen) until analysis. Samples were stored for up to 5 mo. HPLC analysis was performed by Horn Point laboratories using a methanol-based reversed-phase gradient C8 chromatography column system and appropriate standards (Hooker et al., 2009; Van Heukelem and Thomas, 2001). For additional details on laboratory analysis of discrete water samples see: <a href="http://data.bco-dmo.org/NAB08/Laboratory_analysis_report-NAB08.pdf">Laboratory_analysis_report-NAB08.pdf</a>.</p>
<p>Particulate and phytoplankton absorption coefficients (parameter names ap(λ) and aph(λ): Water samples for absorption spectra were filtered onto Whatman GF/F filters and scanned at sea on a Varian Cary 50 UV-Visible Spectrophotometer with a xenon flash lamp and a 1.5nm slit width for measurement of total particulate absorption spectra, ap(λ) (Mitchell and Kiefer, 1988). Filters were subsequently extracted in methanol and re-analyzed to determine residual detrital particulate absorption, ad(λ); the difference spectra are reported as phytoplankton absorption spectra, aph(λ) (Kishino et al., 1985). For each sample and blank, the average absorbance between 750-800 nm was subtracted as the zero baseline for that spectrum. For additional details on laboratory analysis of discrete water samples see: <a href="http://data.bco-dmo.org/NAB08/Laboratory_analysis_report-NAB08.pdf">Laboratory_analysis_report-NAB08.pdf</a>.</p>
from Cruise: B9-2008 <p>CTD data are reported as cast number and not as station number.</p>
<p>Temperature and salinity (parameter names temp and sal): On the R/S Bjarni Saemundsson cruises, only one CTD unit was present, so salinity and temperature were de-spiked using a 21-point (3.5 s) median filter. An additional 81-point (13 s) median filter was applied where the signal was particularly variable. For more details on temperature and salinity processing, see <a href="http://data.bco-dmo.org/NAB08/Ship_TS_despiking-NAB08.pdf">Ship_TS_despiking-NAB08.pdf</a>.</p>
<p>Dissolved oxygen, O2 (parameter name O2_uncal): The sensor was calibrated immediately before the 1 April 2008 cruise. The factory calibration was applied to SBE43 oxygen sensor voltage, with units of µmol kg-1. Although the sensor was calibrated immediately before the cruise, the absolute concentrations were not verified by Winkler oxygen.</p>
<p>Particulate backscattering coefficient, bbp (parameter name bbp700): Backscattering voltage was converted to β at 140° by subtracting dark voltages (median in-situ dark voltage, 0.078 V) and multiplying by factory calibration scale factors, modified based on measurements and calculations of Sullivan et al. (subm.). The calibration factor did not change between pre-cruise and post-cruise factory calibration. β at 140° was converted to bbp (m-1) by subtracting β of seawater (Zhang et al., 2009) and multiplying by 2π (where π = 1.132). See calibration report for more details: <a href="http://data.bco-dmo.org/NAB08/Backscatter_Calibration-NAB08.pdf">Backscatter_Calibration-NAB08.pdf.</a></p>
<p>Chlorophyll fluorescence: Chlorophyll fluorescence (parameter name chl_raw) is reported as the raw instrument voltage output minus dark voltage (median in situ dark voltage = 0.083 volts).</p>
<p>Water column photosynthetically active radiation (parameter name PAR): The sensor was new and freshly calibrated before the cruise. For more details, see <a href="http://data.bco-dmo.org/NAB08/Radiometry_and_PAR_Calibration-NAB08.pdf">Radiometry_and_PAR_Calibration-NAB08.pdf</a>.</p>
from Cruise: B10-2008 <p>CTD data are reported as cast number and not as station number.</p>
<p>Temperature and salinity (parameter names temp and sal): On the R/S Bjarni Saemundsson cruises, only one CTD unit was present, so salinity and temperature were de-spiked using a 21-point (3.5 s) median filter. An additional 81-point (13 s) median filter was applied where the signal was particularly variable. For more details on temperature and salinity processing, see <a href="http://data.bco-dmo.org/NAB08/Ship_TS_despiking-NAB08.pdf">Ship_TS_despiking-NAB08.pdf</a>.</p>
<p>Dissolved oxygen, O2 (parameter name O2_uncal): The sensor was calibrated immediately before the 1 April cruise. The factory calibration was applied to SBE43 oxygen sensor voltage, with units of µmol kg-1. Although the sensor was calibrated immediately before the cruise, the absolute concentrations were not verified by Winkler oxygen.</p>
<p>Particulate attenuation coefficient, cp (parameter name beam_cp): The factory calibration was used to convert C-Star s/n 1090 voltage to particulate attenuation coefficient, cp, (m-1); the calibration factor did not change between pre-cruise and post-cruise factory calibration. C-Star s/n 284 was cross calibrated with C-Star s/n 1090 through a series of simultaneous ship/Biofloat48 calibration profiles. The final product contains cross-calibrated cp coefficients for all three C-Stars. Complete details of the transmissometer intercalibration procedure are in C-Star calibration report (<a href="http://data.bco-dmo.org/NAB08/C-Star_Calibration-NAB08.pdf">C-Star_Calibration-NAB08.pdf</a>).</p>
<p>Particulate backscattering coefficient, bbp (parameter name bbp700): Backscattering voltage was converted to β at 140° by subtracting dark voltages (median in-situ dark voltage, 0.078 V) and multiplying by factory calibration scale factors, modified based on measurements and calculations of Sullivan et al. (subm.). The calibration factor did not change between pre-cruise and post-cruise factory calibration. β at 140° was converted to bbp (m-1) by subtracting β of seawater (Zhang et al., 2009) and multiplying by 2 π(where π = 1.132). See calibration report for calibration report for more details: <a href="http://data.bco-dmo.org/NAB08/Backscatter_Calibration-NAB08.pdf">Backscatter_Calibration-NAB08.pdf</a>.</p>
<p>Chlorophyll fluorescence: Chlorophyll fluorescence (parameter name chl_raw) is reported as the raw instrument voltage output minus dark voltage (median in situ dark voltage = 0.083 volts).</p>
<p>Water column photosynthetically active radiation (parameter name PAR): The sensor was new and freshly calibrated before the cruise. For more details, see <a href="http://data.bco-dmo.org/NAB08/Radiometry_and_PAR_Calibration-NAB08.pdf">Radiometry_and_PAR_Calibration-NAB08.pdf</a>.</p>
<p>Nutrients (parameter names NO3_NO2 and Si_acid): Nutrient samples for nitrate plus nitrite (NO3-+ NO2-) and silicic acid (Si(OH4)) were collected in acid-washed LDPE bottles; unfiltered samples were frozen immediately and stored for up to 8 mo. Samples were thawed at room temperature in the dark for 24 h and vigorously vortexed (Gordon et al., 1993). Samples were analyzed with a Lachat Quickchem 8000 Flow Injection Analysis System using standard absorptiometric techniques (Smith and Bogren, 2001; Wolters, 2002; QuikChem Method 31-107-04-1-C for nitrate plus nitrite; QuikChem Method 31-114-27-1-B for silicic acid). All Lachat spectra were manually inspected for irregularities in baseline or the presence of bubbles. Any offending samples were rejected. Profiles of silicic acid and nitrate concentrations for all casts were also examined, following the recommendation of the IODE workshop on quality control of chemical oceanographic data (IOC, 2010). Concentrations that were clearly out of range without temperature or salinity intrusions were rejectedA total of 14 samples were rejected for nitrate and 11 for silicate out of 91 total samples. Phosphate baselines as a whole were not sufficiently stable to be accepted and hence phosphate data are not reported. For additional details on laboratory analysis of discrete water samples see: <a href="http://data.bco-dmo.org/NAB08/Laboratory_analysis_report-NAB08.pdf">Laboratory_analysis_report-NAB08.pdf.</a></p>
<p>Fluorometric pigments (parameter names chl_a_fluor and phaeo): Water samples for fluorometric analysis of chlorophyll and pheopigments were filtered through Whatman GF/F filters. Filters were extracted in 5 ml of 90% acetone at -20° C for 24 h and read on a Turner Designs Model 10-AU Digital fluorometer. The fluorometer was calibrated before and after the field program with Turner Designs chlorophyll standards. Chlorophyll and pheopigment were determined following JGOFS protocol procedures (Knap et al., 1996). For additional details on laboratory analysis of discrete water samples see: <a href="http://data.bco-dmo.org/NAB08/Laboratory_analysis_report-NAB08.pdf">Laboratory_analysis_report-NAB08.pdf</a>.</p>
<p>Particulate organic carbon (parameter name POC): Samples were collected from Niskin bottles using a sampling bell to minimize particle contamination from air. They were immediately filtered, using closed bottles fitted with Biochem Fluidics caps with 2 tubing ports, through a Millipore Swinnex in-line filter holder onto pre-combusted Whatman GF/F filters. All plastics were washed in RBS. Samples were stored frozen for up to 5 mo. Before analysis, samples were dried at 50 °C for 4 h, fumed with hydrochloric acid (HCl, 11.65 N) for 12 h, and stored in a desiccator for up to 12 h. Filters were rolled and placed in pre-combusted tin cups shortly before analysis on a Perkin Elmer 2400CHN analyzer (Knap et al., 1996). For additional details on laboratory analysis of discrete water samples see: <a href="http://data.bco-dmo.org/NAB08/Laboratory_analysis_report-NAB08.pdf">Laboratory_analysis_report-NAB08.pdf</a>.</p>
<p>HPLC pigment samples (see various parameter names) were filtered onto Whatman GF/F filters and preserved in -80 °C (liquid nitrogen) until analysis. Samples were stored for up to 5 mo. HPLC analysis was performed by Horn Point laboratories using a methanol-based reversed-phase gradient C8 chromatography column system and appropriate standards (Hooker et al., 2009; Van Heukelem and Thomas, 2001). For additional details on laboratory analysis of discrete water samples see: <a href="http://data.bco-dmo.org/NAB08/Laboratory_analysis_report.pdf">Laboratory_analysis_report-NAB08.pdf</a>.</p>
<p>Particulate and phytoplankton absorption coefficients (parameter names ap(?) and aph(?): Water samples for absorption spectra were filtered onto Whatman GF/F filters and scanned at sea on a Varian Cary 50 UV-Visible Spectrophotometer with a xenon flash lamp and a 1.5nm slit width for measurement of total particulate absorption spectra, ap(?) (Mitchell and Kiefer, 1988). Filters were subsequently extracted in methanol and re-analyzed to determine residual detrital particulate absorption, ad(?); the difference spectra are reported as phytoplankton absorption spectra, aph(?) (Kishino et al., 1985). For additional details on laboratory analysis of discrete water samples see: <a href="http://data.bco-dmo.org/NAB08/Laboratory_analysis_report-NAB08.pdf">Laboratory_analysis_report-NAB08.pdf</a>.</p>
Specified by the Principal Investigator(s)
asNeeded
7.x-1.1
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
Spectrophotomer-Varian Cary 50UV
Spectrophotomer-Varian Cary 50UV
PI Supplied Instrument Name: Spectrophotomer-Varian Cary 50UV Instrument Name: Spectrophotomer-Varian Cary 50UV Instrument Short Name:Cary 50UV Instrument Description: The Varian Cary 50 UV-Visible Spectrophotometer has a xenon flash lamp and a 1.5nm slit width for measurement of total particulate absorption spectra. Community Standard Description: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0523/
Cruise: KN193-03
KN193-03
R/V Knorr
Community Standard Description
International Council for the Exploration of the Sea
R/V Knorr
vessel
KN193-03
Mary Jane Perry
University of Maine
Cruise: B4-2008
B4-2008
Community Standard Description
International Council for the Exploration of the Sea
R/V Bjarni Saemundsson
vessel
B4-2008
Craig M. Lee
University of Washington Applied Physics Laboratory
Cruise: B9-2008
B9-2008
Community Standard Description
International Council for the Exploration of the Sea
R/V Bjarni Saemundsson
vessel
B9-2008
Mary Jane Perry
University of Maine
Cruise: B10-2008
B10-2008
Community Standard Description
International Council for the Exploration of the Sea
R/V Bjarni Saemundsson
vessel
B10-2008
Mary Jane Perry
University of Maine
R/V Knorr
Community Standard Description
International Council for the Exploration of the Sea
R/V Knorr
vessel
Community Standard Description
International Council for the Exploration of the Sea
R/V Bjarni Saemundsson
vessel