http://lod.bco-dmo.org/id/dataset/3442
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
2011-03-09
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Nitrate plus raw spectral profiles from a Satlantic Nitrate Sensor on Biofloat 48 in the subpolar North Atlantic and Iceland Basin in 2008 (NAB 2008 project)
2011-03-15
publication
2011-03-15
revision
BCO-DMO Linked Data URI
2011-03-15
creation
http://lod.bco-dmo.org/id/dataset/3442
Eric D'Asaro
University of Washington Applied Physics Laboratory
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: D'Asaro, E. (2011) Nitrate plus raw spectral profiles from a Satlantic Nitrate Sensor on Biofloat 48 in the subpolar North Atlantic and Iceland Basin in 2008 (NAB 2008 project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 14 March 2011) Version Date 2011-03-15 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/3442 [access date]
Nitrate and Raw spectral profiles from Satlantic Nitrate Sensor Dataset Description:
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 NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-0628379 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=0628379
completed
Eric D'Asaro
University of Washington Applied Physics Laboratory
206-685-2982
Applied Physics Laboratory 1013 NE 40th Str
Seattle
WA
98105
USA
dasaro@apl.uw.edu
pointOfContact
asNeeded
Dataset Version: 14 March 2011
Unknown
Cruise_ID
float_cycle
julian_day_yr0
latitude
longitude
start_date
start_time
end_date
end_time
press
depth
temp
potemp
sal
sigma_0
yrday
wavelength
spectrum_light
spectrum_dark
spectrum_ref
NO3_NO2
mode
ISUS Nitrate sensor
Lagrangian Float
theme
None, User defined
Cruise identfier
float_cycle
julian_day_yr0
latitude
longitude
date begin
time begin
date end
time_end
water pressure
depth
water temperature at measurement depth
potential temperature
salinity
sigma-theta
year day (Day of Year, or day of year and decimal time)
wavelength
spectrum_light
spectrum_dark
spectrum_ref
nitrate plus nitrite
float_operational_mode
featureType
BCO-DMO Standard Parameters
ISUS Nitrate sensor
Lagrangian Float
instrument
BCO-DMO Standard Instruments
Biofloat_48
service
Deployment Activity
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
2011-03-15
North Atlantic, 60 &deg; North
0
BCO-DMO catalogue of parameters from Nitrate plus raw spectral profiles from a Satlantic Nitrate Sensor on Biofloat 48 in 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/23689.rdf
Name: Cruise_ID
Units: dimensionless
Description: <p>Cruise identifier</p>
http://lod.bco-dmo.org/id/dataset-parameter/23690.rdf
Name: float_cycle
Units: dimensionless
Description: <p>index counting float cycles</p>
http://lod.bco-dmo.org/id/dataset-parameter/23691.rdf
Name: julian_day_yr0
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/23692.rdf
Name: latitude
Units: decimal degrees
Description: <p>latitude</p>
http://lod.bco-dmo.org/id/dataset-parameter/23693.rdf
Name: longitude
Units: decimal degrees
Description: <p>longitude</p>
http://lod.bco-dmo.org/id/dataset-parameter/23694.rdf
Name: start_date
Units: YYYYMMDD
Description: <p>date sampling begins</p>
http://lod.bco-dmo.org/id/dataset-parameter/23695.rdf
Name: start_time
Units: HHMM
Description: <p>time sampling begins</p>
http://lod.bco-dmo.org/id/dataset-parameter/23696.rdf
Name: end_date
Units: YYYYMMDD
Description: <p>date sampling ends</p>
http://lod.bco-dmo.org/id/dataset-parameter/23697.rdf
Name: end_time
Units: HHMM
Description: <p>time sampling ends</p>
http://lod.bco-dmo.org/id/dataset-parameter/23698.rdf
Name: press
Units: decibars
Description: <p>water pressure at measurement</p>
http://lod.bco-dmo.org/id/dataset-parameter/23699.rdf
Name: depth
Units: meters
Description: <p>depth at which sample was taken</p>
http://lod.bco-dmo.org/id/dataset-parameter/23700.rdf
Name: temp
Units: degrees Celsius
Description: <p>Temperature</p>
http://lod.bco-dmo.org/id/dataset-parameter/23701.rdf
Name: potemp
Units: degrees Celsius
Description: <p>Potential Temperature</p>
http://lod.bco-dmo.org/id/dataset-parameter/23702.rdf
Name: sal
Units: dimensionless
Description: <p>Salinity</p>
http://lod.bco-dmo.org/id/dataset-parameter/23703.rdf
Name: sigma_0
Units: kilograms/meter^3
Description: <p>water potential density minus 1000</p>
http://lod.bco-dmo.org/id/dataset-parameter/23704.rdf
Name: yrday
Units: dimensionless
Description: <pre wrap="">
Yearday 2008. Yearday 1 is 2008-01-01:00:00:00Z
</pre>
http://lod.bco-dmo.org/id/dataset-parameter/23705.rdf
Name: wavelength
Units: nanometers
Description: <p>Calibrated wavelength (256 channels), with measurements valid from 320-950 nm. Wavelengths outside this range contain dark pixel data for measuring dark current. Spectral resolution is ~3.3 nanometers (instrument: TriOS ACC)</p>
http://lod.bco-dmo.org/id/dataset-parameter/23706.rdf
Name: spectrum_light
Units: counts
Description: <p>Raw UV absorbance spectrum (light samples only, 256 channels.)</p>
http://lod.bco-dmo.org/id/dataset-parameter/23707.rdf
Name: spectrum_dark
Units: counts
Description: <p>Raw UV absorbance spectrum (dark samples only, 256 channels.)</p>
http://lod.bco-dmo.org/id/dataset-parameter/23708.rdf
Name: spectrum_ref
Units: counts
Description: <p>Reference spectrum: post-cruise measurement of raw UV absorbance spectrum in de-ionized water - reverse osmosis (17.5 megohm-centimeter resistivity) at ambient atmospheric pressure.</p>
http://lod.bco-dmo.org/id/dataset-parameter/23925.rdf
Name: NO3_NO2
Units: micromol/liter
Description: <p>Nitrate concentration, calibrated against bottle nutrient samples that were analyzed for nitrate plus nitrite (NO3+ NO2).</p>
http://lod.bco-dmo.org/id/dataset-parameter/23934.rdf
Name: mode
Units: dimensionless
Description: <p>0 = down profile <br />
1 = settle <br />
2 = up profile<br />
3 = drift_iso<br />
5 = drift_ml</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
162140077
https://datadocs.bco-dmo.org/file/LAAGpqEH98xoj/Biofloat_48_ISUS.csv
Biofloat_48_ISUS.csv
Primary data file for dataset ID 3442
download
https://osprey.bco-dmo.org/dataset/3442/data/download
download
onLine
dataset
<p>Nitrate (parameter names nitrate): The Satlantic in situ ultraviolet spectrophometer ISUS V3 sensor was deployed on Float 48.&nbsp; Post calibration of the ISUS instrument and subsequent processing of the spectrophotometric data acquired by the ISUS incorporating in situ temperature and salinity measurements to correct for the temperature-dependent, ultraviolet absorbance by the bromide ion results in a precision of duplicate nitrate measurements of 0.1&mu;M. These nitrate concentrations were then calibrated against bottle measurements collected during the R/V Knorr process cruise (April 17 through May16) and subsequently analyzed for nitrate plus nitrite (NO3-+ NO2-) concentration.&nbsp; A simple linear regression was sufficient to make the ISUS nitrate concentrations (NO3ISUS) fit the bottle for nitrate plus nitrite measurements with a standard deviation of 0.6&mu;M:<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; nitrate = 1.1536 x NO3ISUS + 2.6227&nbsp;&nbsp;&nbsp; (r2 = 0.927, n = 53)<br />
Comparisons with water samples taken on the R/V Bjarni Saemundsson deployment cruise are inconclusive due to high spatial variability.&nbsp; No obvious drift of the ISUS response with time or depth was apparent.&nbsp; For more details, see <a href="http://data.bco-dmo.org/NAB08/ISUS_Nitrate_Calibration-NAB08.pdf">ISUS_Nitrate_Calibration-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
ISUS Nitrate sensor
ISUS Nitrate sensor
PI Supplied Instrument Name: ISUS Nitrate sensor Instrument Name: ISUS Nitrate sensor Instrument Short Name:ISUS Nitrate Instrument Description: The Satlantic ISUS nitrate sensor is an in-situ UV absorption sensor which calculates nitrate concentration from the seawater spectrum. The ISUS V2 has a 1cm path length, a 200-400 nm wavelength range., and is depth rated to 1000 m. Satlantic's ISUS V3 nitrate sensor uses advanced UV absorption technology to measure nitrate concentration in real-time. Community Standard Description: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0135/
Lagrangian Float
Lagrangian Float
PI Supplied Instrument Name: Lagrangian Float PI Supplied Instrument Description:The 2008 North Atlantic Bloom Experiment (NAB08) employed a “Lagrangian float”, custom built at the University of Washington Applied Physics Laboratory. (D’Asaro, 2003, Performance of Lagrangian Floats, Journal of Atmospheric and Oceanic Technology, Vol. 20, 896-911). Instrument Name: Lagrangian Float Instrument Short Name:Lagrangian Float Instrument Description: Built at the University of Washington Applied Physics Laboratory, the Lagrangian Float is not an ARGO float. It is primarily designed to accurately follow the three-dimensional motion of water parcels within the mixed layer, through a combination of neutral buoyancy and high drag provided by a one meter diameter black drogue. Typical buoyancies of a few grams result in vertical velocities relative to the water of a few mm/s, small compared to the cm/s turbulent velocities in the mixed layer. The float’s motion within the mixed layer thus closely imitates that of a planktonic organism. The float can also profile vertically. It sends data and receives commands using the Iridium satellite system. The float is designed to accommodate a wide variety of sensors.
Deployment: Biofloat_48
Biofloat_48
Biofloat 48
float
Biofloat_48
Eric D'Asaro
University of Washington Applied Physics Laboratory
Biofloat 48
float