http://lod.bco-dmo.org/id/dataset/2911
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
2010-06-16
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Sinking Particles from R/V Kaiyo-Maru cruise KY0103-02 in the Northwestern Sub-Arctic Pacific in 2001 (SEEDS I project)
2010-02-09
publication
2010-02-09
revision
BCO-DMO Linked Data URI
2010-02-09
creation
http://lod.bco-dmo.org/id/dataset/2911
Dr Yukihiro Nojiri
National Institute for Environmental Studies, University of Tokyo
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: Nojiri, Y. (2010) Sinking Particles from R/V Kaiyo-Maru cruise KY0103-02 in the Northwestern Sub-Arctic Pacific in 2001 (SEEDS I project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 09Feb2010 ) Version Date 2010-02-09 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/2911 [access date]
Sinking Particles Dataset Description: <p><b>SEEDS 2001 Sinking Particles</b><br />
mass flux (average of 4 cups) for each depth and each deployment.<br />
POC and PON (used to calculate C and N flux).<br />
Metals (by ICP-AES)<br />
- Al, Ca, Fe, Mg, Mn, P, Sr, Ti, and Zn on dry material<br />
- Ba, Cr, Cu also measured but subject to analytical problems.<br />
- Na, K, S used to check seasalt mass balance.<br />
Si also measured (but on different filter to metals).<br />
d13C</p> Methods and Sampling: <p>Traps were suspended from each of the buoys:<br />
- CENTRE: 20 m<br />
- IN: 40, 60, 100, 200 m<br />
- OUT: 20, 40, 60 and 100 m<br />
<br />
Traps were recovered several times.<br />
<br />
Deployment times (days):<br />
- CENTRE: 3.95, 2.83, 2.02, 1.98, 1.93, 2.05<br />
- IN: 3.99, 2.84, 2.03, 2.00, 1.95, 2.01<br />
- OUT: 5.17, 3.97, 3.42<br />
<br />
<br />
<i><b>Notes from original xls file: Sinking_particles.xls</b></i><br />
<b>Drifting sediment trap experiment by CREST/NIES</b><br />
<br />
(dm) 105 lines of comments before data begins.<br />
(dm) all comments except 7 lines prefaced with (dm) are copied from original file.<br />
Comments (dm) by fcsv file compiler<br />
<br />
(dm) NOTE that I traps 200m data collected with different style (Aono type trap)<br />
<br />
Cylindrical sediment trap of Knauer design was used.<br />
Eight traps deployed on each cross-frame.<br />
The cylindrical trap is separable into upper cylinder and bottom cup.<br />
The upper cylinder has a baffle at the open end. (see picture)<br />
<i><b>(DMO Note: No picture enclosed)</b></i><br />
<br />
- All the traps was filled with a high density gradient solution(approximately 39 permil containing 2 % formalin).<br />
- The solution was prepared with filtered seawater sampled nearbystation of the Fe infusion and NaCl was added.<br />
- At the deployment of the trap half volume of the high density solution might be replaced with surrounding seawater.<br />
- Center drifter was deployed to locate the center of Fe patch which had 20 m depth trap positioning buoys radar reflector and drogue.<br />
- Inside drifter was deployed at the distance of 0.3 mile from the center drifter which had 40 60 100 and 200 m depth traps positioning buoys and radar reflector.<br />
- Outside drifter was deployed at the distance of 20 mile from the center drifter which had 20 40 60 and 100 m depth traps positioning buoys and radar reflector.<br />
- Trap design of 200 m depth was different (0.16 m in diameter and 4 traps on a frame).<br />
- The detail of the design is described in Th234 data set file.<br />
<br />
20 m trap sample of center drifter in Run 2 was lost by an accidental event at deck recovery.<br />
20 m trap of center drifter in Run 4 was lost because of the breakage of hydro wire.<br />
<br />
Recovered sample in the bottom cup was transferred into 500 mL polystyrene bottle.<br />
Formalin was added at final concentration of 5 % for preservation until on shore analysis.<br />
The folmalin used was neutralized with sodium borate (Borax).<br />
Large zooplankton (swimmer was removed under microscope.<br />
<br />
<b>Regular design traps (Knauer Type)</b><br />
<br />
- 2-3: Nuclepore for biogenic Si analysis<br />
- 4: Nuclepore for metallic element analysis<br />
- 5: Nuclepore for spare<br />
- 6: GF/F for C N analysis by Carlo Erba elemental analyzer (EA1110)<br />
- 7: GF/F for C13 analysis of organic carbon by Delta Plus (Finnigan MAT combined with the Carlo Erba elemental analyzer)<br />
- 8: GF/F for spare<br />
<br />
Size of the filters were 47mm in diameter and pore size of Nuclepore filter was 0.6 micro meter.<br />
Pre-weighted filter was used for filtration.<br />
The pre-weighting procedure was identical to the sample weighting.<br />
Filter with trapped material was immediately frozen in -30 degree C freezer.<br />
Filters were dried in a vacuum freeze dryer.<br />
After drying the filter it was kept in a clean balance room controlled at 23 degree C and 50 % humidity.<br />
The reproducibility of the weight measurement was 0.05 mg for each filter.<br />
Total mass flux was calculated from 4 replicate measurement of Nuclepore filters.<br />
The weight of GF/F samples were also measured however the stability of the weight<br />
was poorer than that of Nuclepore filter.<br />
For C/N analysis GF/F filter was fumed in a desiccator containing conc.<br />
HCl to vaporize the inorganic carbon.<br />
<br />
<b>Trap dimensions:</b><br />
- Length (L) m 0.63<br />
- Inside diameter (Di) m 0.07<br />
- Outside diameter (Do) m 0.075<br />
- Aspect ratio (AR) 8.86<br />
- Collection area (A) m2 0.00385<br />
- Trap volume (V) m3 0.00239<br />
- Trap volume (V) litres 2.386<br />
- Baffle length (Lb) m 0.076<br />
- Baffle diameter (Dib) m 0.013<br />
- Baffle aspect ratio (ARb) 5.85<br />
<br />
Aono type trap (used I traps at 200 m only collection area 0.020106 m2<br />
Trap collection area 0.003848 m2</p>
completed
Dr Yukihiro Nojiri
National Institute for Environmental Studies, University of Tokyo
nojiri@nies.go.jp
pointOfContact
asNeeded
Dataset Version: 09Feb2010
Unknown
trap
depth
date_start
time_start
lon_start
lat_start
date_end
time_end
lon_end
lat_end
Drifting_period
mass_Cup_2mg
mass_Cup_3mg
mass_Cup_4mg
mass_Cup_5mg
mass_avg
mass_st_dev
mass_RSD_percent
mass_flux
PON
POC
N_flux
C_flux
metals_filter_number
dry_wt
Al
Ca
Fe
Mg
Mn
P
Sr
Ti
Zn
B
Ba
Cr
Cu
Na
K
S
Silica_filter_number
silica_filter_dry_wt
Si_percent
total_mass_flux
N_mass_flux
C_mass_flux
Si_mass_flux
Al_mass_flux
Ca_mass_flux
Fe_mass_flux
Mg_mass_flux
Mn_mass_flux
P_mass_flux
Sr_mass_flux
Ti_mass_flux
Zn_mass_flux
B_mass_flux
Ba_mass_flux
Cr_mass_flux
Cu_mass_flux
Na_mass_flux
K_mass_flux
S_mass_flux
Crustal_Ca_mass_flux
carb_Ca_mass_flux
Inorganic_C_mass_flux
C_to_N
C_to_P
N_to_P
C_to_Si
CO3_to_C
MCC_Inorg_CO3
MCC_NH2
MCC_CH2O
MCC_SiO2
MCC_Al2O3
MCC_Ca
MCC_Fe2O3
MCC_MgO
MCC_PO4
MCC_ZnO
MCC_BO3
MCC_NaCl
MCC_KCl
MCC_SH2
MCC_total_element_mass_calculated
MCC_calculated_mass_minus_actual_mass
MCC_mass_percent_excess
d13C_filter_used
delta_C13
Sediment Trap
theme
None, User defined
No BCO-DMO term
depth
date begin
time_start
longitude at start time of measurement
latitude at start time of measurement
date end
time_end
longitude at end time of measurement
latitude at end time of measurement
particulate organic nitrogen
particulate organic Carbon (POC)
Carbon to Nitrogen ratio (C:N)
featureType
BCO-DMO Standard Parameters
Sediment Trap
instrument
BCO-DMO Standard Instruments
KY0103-02
service
Deployment Activity
Northwestern Sub-Arctic Pacific
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.
Iron Synthesis
https://osprey.bco-dmo.org/program/2017
Iron Synthesis
The two main objectives of the Iron Synthesis program (SCOR Working Group proposal, 2005), are:
1. Data compilation: assembling a common open-access database of the in situ iron experiments, beginning with the first period (1993-2002; Ironex-1, Ironex-2, SOIREE, EisenEx, SEEDS-1; SOFeX, SERIES) where primary articles have already been published, to be followed by the 2004 experiments where primary articles are now in progress (EIFEX, SEEDS-2; SAGE, FeeP); similarly for the natural fertilizations S.O.JGOFS (1992), CROZEX (2004/2005) and KEOPS (2005).
2. Modeling and data synthesis of specific aspects of two or more such experiments for various topics such as physical mixing, phytoplankton productivity, overall ecosystem functioning, iron chemistry, CO2 budgeting, nutrient uptake ratios, DMS(P) processes, and combinations of these variables and processes.
SCOR Working Group proposal, 2005. "The Legacy of in situ Iron Enrichments: Data Compilation and Modeling".
http://www.scor-int.org/Working_Groups/wg131.htm
See also: SCOR Proceedings Vol. 42 Concepcion, Chile October 2006, pgs: 13-16 2.3.3 Working Group on The Legacy of in situ Iron Enrichments: Data Compilation and Modeling.
The first objective of the Iron Synthesis program involves a data recovery effort aimed at assembling a common, open-access database of data and metadata from a series of in-situ ocean iron fertilization experiments conducted between 1993 and 2005. Initially, funding for this effort is being provided by the Scientific Committee on Oceanic Research (SCOR) and the U.S. National Science Foundation (NSF).
Through the combined efforts of the principal investigators of the individual projects and the staff of Biological and Chemical Oceanography Data Management Office (BCO-DMO), data currently available primarily through individuals, disparate reports and data agencies, and in multiple formats, are being collected and prepared for addition to the BCO-DMO database from which they will be freely available to the community.
As data are contributed to the BCO-DMO office, they are organized into four overlapping categories:
1. Level 1, basic metadata
(e.g., description of project/study, general location, PI(s), participants);
2. Level 2, detailed metadata and basic shipboard data and routine ship's operations
(e.g., CTDs, underway measurements, sampling event logs);
3. Level 3, detailed metadata and data from specialized observations
(e.g., discrete observations, experimental results, rate measurements) and
4. Level 4, remaining datasets
(e.g., highest level of detailed data available from each study).
Collaboration with BCO-DMO staff began in March of 2008 and initial efforts have been directed toward basic project descriptions, levels 1 and 2 metadata and basic data, with detailed and more detailed data files being incorporated as they become available and are processed.
Related file
Program Documentation
The Iron Synthesis Program is funded jointly by the Scientific Committee on Oceanic Research (SCOR) and the U.S. National Science Foundation (NSF).
FeSynth
largerWorkCitation
program
Subarctic-Pacific Iron Experiment for Ecosystem Dynamics Study I
http://www.seeds-exp.jp/en/index.html
Subarctic-Pacific Iron Experiment for Ecosystem Dynamics Study I
<p>An in situ test of the iron limitation hypothesis in the subarctic North Pacific Oceanwas performed. First experiment of two (see SEEDS 2004)</p>
<p>A single enrichment of dissolved iron caused a large increase in phytoplanktonstanding stock and decreases in macronutrients and dissolved carbon dioxide. The dominant phytoplankton species shifted after the iron addition from pennate diatoms to a centric diatom, <i>Chaetoceros debilis</i>, that showed a very high growth rate, 2.6 doublings per day. Conclusion was that the bioavailability of iron regulates the magnitude of the phytoplankton biomass and the key phytoplankton species that determine the biogeochemical sensitivity to iron supply of high-nitrate, low-chlorophyll waters.</p>
<p>Data was collected at a total of 13 stations and from 3 moored sediment traps.<br />
- Stations were occupied IN patch for days 0, 2, 4, 7, 9, 11 and 13.<br />
- Stations were occupied OUT patch for days 2, 4, 7, 9, 11, 13.</p>
<p>It is not explicitly stated but it appears that at all stations two CTDsampling rosette casts were made: clean and rms. The clean rosette appears to have typically sampled the mixed layer (<50 m) e.g. 5, 10, 20, 30, 50 m. The rms rosette appears to have typically sampled the euphotic zone (<200m) e.g. 10, 20, 30, 40, 50, 80, 100, 150, 200 m.</p>
<p>Sediment traps were deployed at:<br />
- CENTRE: 20 m<br />
- IN: 40, 60, 100, 200 m<br />
- OUT: 20, 40, 60 and 100 m</p>
<p>Traps were recovered several times. Deployment times (days):<br />
- CENTRE: 3.95, 2.83, 2.02, 1.98, 1.93, 2.05<br />
- IN: 3.99, 2.84, 2.03, 2.00, 1.95, 2.01<br />
- OUT: 5.17, 3.97, 3.42</p>
<p><b>BCO-DMO/Doug Mackie Note:</b><br />
Throughout these data, stations are identified as D2-I, D2-O, etc.<br />
D2-I indicates "Day 2, in patch station".<br />
while D2-O indicates "Day 2, out patch station".<br />
This applies to all station identifiers.</p>
<h3>Related file</h3>
<p><a href="http://data.bco-dmo.org/Fe_Synthesis/SEEDS_2001/Project_SEEDS-ONE_Master.pdf">SEEDS 2001 Project Documentation</a></p>
<p> </p>
<p> </p>
SEEDS I
largerWorkCitation
project
eng; USA
oceans
Northwestern Sub-Arctic Pacific
2010-02-09
Western subarctic gyre in the North Pacific at 48.5°N, 165°E
0
BCO-DMO catalogue of parameters from Sinking Particles from R/V Kaiyo-Maru cruise KY0103-02 in the Northwestern Sub-Arctic Pacific in 2001 (SEEDS I 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/20888.rdf
Name: trap
Units: text
Description: <p>trap</p>
http://lod.bco-dmo.org/id/dataset-parameter/20889.rdf
Name: depth
Units: meters
Description: <p>depth</p>
http://lod.bco-dmo.org/id/dataset-parameter/20890.rdf
Name: date_start
Units: YYYYMMDD
Description: <p>date Trap deployment JST</p>
http://lod.bco-dmo.org/id/dataset-parameter/20891.rdf
Name: time_start
Units: HHMM
Description: <p>time Trap deployment JST</p>
http://lod.bco-dmo.org/id/dataset-parameter/20892.rdf
Name: lon_start
Units: decimal degrees
Description: <p>longitude of Trap deployment (negative denotes West)</p>
http://lod.bco-dmo.org/id/dataset-parameter/20893.rdf
Name: lat_start
Units: decimal degrees
Description: <p>latitude of Trap deployment (negative denotes South)</p>
http://lod.bco-dmo.org/id/dataset-parameter/20894.rdf
Name: date_end
Units: YYYYMMDD
Description: <p>date Trap recovery JST</p>
http://lod.bco-dmo.org/id/dataset-parameter/20895.rdf
Name: time_end
Units: HHMM
Description: <p>time Trap recovery JST</p>
http://lod.bco-dmo.org/id/dataset-parameter/20896.rdf
Name: lon_end
Units: decimal degrees
Description: <p>longitude of Trap recovery (negative denotes West)</p>
http://lod.bco-dmo.org/id/dataset-parameter/20897.rdf
Name: lat_end
Units: decimal degrees
Description: <p>latitude of Trap recovery (negative denotes South)</p>
http://lod.bco-dmo.org/id/dataset-parameter/20898.rdf
Name: Drifting_period
Units: decimal days
Description: <p>Drifting period days</p>
http://lod.bco-dmo.org/id/dataset-parameter/20899.rdf
Name: mass_Cup_2mg
Units: mg
Description: <p>mass Cup 2</p>
http://lod.bco-dmo.org/id/dataset-parameter/20900.rdf
Name: mass_Cup_3mg
Units: mg
Description: <p>mass Cup 3</p>
http://lod.bco-dmo.org/id/dataset-parameter/20901.rdf
Name: mass_Cup_4mg
Units: mg
Description: <p>mass Cup 4</p>
http://lod.bco-dmo.org/id/dataset-parameter/20902.rdf
Name: mass_Cup_5mg
Units: mg
Description: <p>mass Cup 5</p>
http://lod.bco-dmo.org/id/dataset-parameter/20903.rdf
Name: mass_avg
Units: mg
Description: <p>mass avg</p>
http://lod.bco-dmo.org/id/dataset-parameter/20904.rdf
Name: mass_st_dev
Units: mg
Description: <p>mass st dev</p>
http://lod.bco-dmo.org/id/dataset-parameter/20905.rdf
Name: mass_RSD_percent
Units: percentage
Description: <p>mass RSD percent</p>
http://lod.bco-dmo.org/id/dataset-parameter/20906.rdf
Name: mass_flux
Units: mg/m2/day
Description: <p>mass flux</p>
http://lod.bco-dmo.org/id/dataset-parameter/20907.rdf
Name: PON
Units: mg
Description: <p>PON</p>
http://lod.bco-dmo.org/id/dataset-parameter/20908.rdf
Name: POC
Units: mg
Description: <p>POC</p>
http://lod.bco-dmo.org/id/dataset-parameter/20909.rdf
Name: N_flux
Units: mg/m2/day
Description: <p>N flux</p>
http://lod.bco-dmo.org/id/dataset-parameter/20910.rdf
Name: C_flux
Units: mg/m2/day
Description: <p>C flux</p>
http://lod.bco-dmo.org/id/dataset-parameter/20911.rdf
Name: metals_filter_number
Units: integer
Description: <p>metals filter number</p>
http://lod.bco-dmo.org/id/dataset-parameter/20912.rdf
Name: dry_wt
Units: mg
Description: <p>dry wt</p>
http://lod.bco-dmo.org/id/dataset-parameter/20913.rdf
Name: Al
Units: mg/kg
Description: <p>Al</p>
http://lod.bco-dmo.org/id/dataset-parameter/20914.rdf
Name: Ca
Units: mg/kg
Description: <p>Ca</p>
http://lod.bco-dmo.org/id/dataset-parameter/20915.rdf
Name: Fe
Units: mg/kg
Description: <p>Fe</p>
http://lod.bco-dmo.org/id/dataset-parameter/20916.rdf
Name: Mg
Units: mg/kg
Description: <p>Mg</p>
http://lod.bco-dmo.org/id/dataset-parameter/20917.rdf
Name: Mn
Units: mg/kg
Description: <p>Mn</p>
http://lod.bco-dmo.org/id/dataset-parameter/20918.rdf
Name: P
Units: mg/kg
Description: <p>P</p>
http://lod.bco-dmo.org/id/dataset-parameter/20919.rdf
Name: Sr
Units: mg/kg
Description: <p>Sr</p>
http://lod.bco-dmo.org/id/dataset-parameter/20920.rdf
Name: Ti
Units: mg/kg
Description: <p>Ti</p>
http://lod.bco-dmo.org/id/dataset-parameter/20921.rdf
Name: Zn
Units: mg/kg
Description: <p>Zn</p>
http://lod.bco-dmo.org/id/dataset-parameter/20922.rdf
Name: B
Units: mg/kg
Description: <p>B</p>
http://lod.bco-dmo.org/id/dataset-parameter/20923.rdf
Name: Ba
Units: mg/kg
Description: <p>Ba</p>
http://lod.bco-dmo.org/id/dataset-parameter/20924.rdf
Name: Cr
Units: mg/kg
Description: <p>Cr</p>
http://lod.bco-dmo.org/id/dataset-parameter/20925.rdf
Name: Cu
Units: mg/kg
Description: <p>Cu</p>
http://lod.bco-dmo.org/id/dataset-parameter/20926.rdf
Name: Na
Units: mg/kg
Description: <p>Na</p>
http://lod.bco-dmo.org/id/dataset-parameter/20927.rdf
Name: K
Units: mg/kg
Description: <p>K</p>
http://lod.bco-dmo.org/id/dataset-parameter/20928.rdf
Name: S
Units: mg/kg
Description: <p>S</p>
http://lod.bco-dmo.org/id/dataset-parameter/20929.rdf
Name: Silica_filter_number
Units: integer
Description: <p>Silica filter number</p>
http://lod.bco-dmo.org/id/dataset-parameter/20930.rdf
Name: silica_filter_dry_wt
Units: mg
Description: <p>silica filter dry wt</p>
http://lod.bco-dmo.org/id/dataset-parameter/20931.rdf
Name: Si_percent
Units: percentage
Description: <p>Si percent</p>
http://lod.bco-dmo.org/id/dataset-parameter/20932.rdf
Name: total_mass_flux
Units: mg/m2/day
Description: <p>total mass flux</p>
http://lod.bco-dmo.org/id/dataset-parameter/20933.rdf
Name: N_mass_flux
Units: mg/m2/day
Description: <p>N mass flux</p>
http://lod.bco-dmo.org/id/dataset-parameter/20934.rdf
Name: C_mass_flux
Units: mg/m2/day
Description: <p>C mass flux</p>
http://lod.bco-dmo.org/id/dataset-parameter/20935.rdf
Name: Si_mass_flux
Units: mg/m2/day
Description: <p>Si mass flux</p>
http://lod.bco-dmo.org/id/dataset-parameter/20936.rdf
Name: Al_mass_flux
Units: mg/m2/day
Description: <p>Al mass flux</p>
http://lod.bco-dmo.org/id/dataset-parameter/20937.rdf
Name: Ca_mass_flux
Units: mg/m2/day
Description: <p>Ca mass flux</p>
http://lod.bco-dmo.org/id/dataset-parameter/20938.rdf
Name: Fe_mass_flux
Units: mg/m2/day
Description: <p>Fe mass flux</p>
http://lod.bco-dmo.org/id/dataset-parameter/20939.rdf
Name: Mg_mass_flux
Units: mg/m2/day
Description: <p>Mg mass flux</p>
http://lod.bco-dmo.org/id/dataset-parameter/20940.rdf
Name: Mn_mass_flux
Units: mg/m2/day
Description: <p>Mn mass flux</p>
http://lod.bco-dmo.org/id/dataset-parameter/20941.rdf
Name: P_mass_flux
Units: mg/m2/day
Description: <p>P mass flux</p>
http://lod.bco-dmo.org/id/dataset-parameter/20942.rdf
Name: Sr_mass_flux
Units: mg/m2/day
Description: <p>Sr mass flux</p>
http://lod.bco-dmo.org/id/dataset-parameter/20943.rdf
Name: Ti_mass_flux
Units: mg/m2/day
Description: <p>Ti mass flux</p>
http://lod.bco-dmo.org/id/dataset-parameter/20944.rdf
Name: Zn_mass_flux
Units: mg/m2/day
Description: <p>Zn mass flux</p>
http://lod.bco-dmo.org/id/dataset-parameter/20945.rdf
Name: B_mass_flux
Units: mg/m2/day
Description: <p>B mass flux</p>
http://lod.bco-dmo.org/id/dataset-parameter/20946.rdf
Name: Ba_mass_flux
Units: mg/m2/day
Description: <p>Ba mass flux</p>
http://lod.bco-dmo.org/id/dataset-parameter/20947.rdf
Name: Cr_mass_flux
Units: mg/m2/day
Description: <p>Cr mass flux</p>
http://lod.bco-dmo.org/id/dataset-parameter/20948.rdf
Name: Cu_mass_flux
Units: mg/m2/day
Description: <p>Cu mass flux</p>
http://lod.bco-dmo.org/id/dataset-parameter/20949.rdf
Name: Na_mass_flux
Units: mg/m2/day
Description: <p>Na mass flux</p>
http://lod.bco-dmo.org/id/dataset-parameter/20950.rdf
Name: K_mass_flux
Units: mg/m2/day
Description: <p>K mass flux</p>
http://lod.bco-dmo.org/id/dataset-parameter/20951.rdf
Name: S_mass_flux
Units: mg/m2/day
Description: <p>S mass flux</p>
http://lod.bco-dmo.org/id/dataset-parameter/20952.rdf
Name: Crustal_Ca_mass_flux
Units: mg/m2/day
Description: <p>Crustal Ca mass flux</p>
http://lod.bco-dmo.org/id/dataset-parameter/20953.rdf
Name: carb_Ca_mass_flux
Units: mg/m2/day
Description: <p>carb Ca mass flux</p>
http://lod.bco-dmo.org/id/dataset-parameter/20954.rdf
Name: Inorganic_C_mass_flux
Units: mg/m2/day
Description: <p>Inorganic C mass flux</p>
http://lod.bco-dmo.org/id/dataset-parameter/20955.rdf
Name: C_to_N
Units: dimensionless
Description: <p>C/N ratio</p>
http://lod.bco-dmo.org/id/dataset-parameter/20956.rdf
Name: C_to_P
Units: dimensionless
Description: <p>C/P ratio</p>
http://lod.bco-dmo.org/id/dataset-parameter/20957.rdf
Name: N_to_P
Units: dimensionless
Description: <p>N/P ratio</p>
http://lod.bco-dmo.org/id/dataset-parameter/20958.rdf
Name: C_to_Si
Units: dimensionless
Description: <p>C/Si ratio</p>
http://lod.bco-dmo.org/id/dataset-parameter/20959.rdf
Name: CO3_to_C
Units: dimensionless
Description: <p>CO3/C ratio</p>
http://lod.bco-dmo.org/id/dataset-parameter/20960.rdf
Name: MCC_Inorg_CO3
Units: tbd
Description: <p>Mass Check Calculation for Inorg CO3</p>
http://lod.bco-dmo.org/id/dataset-parameter/20961.rdf
Name: MCC_NH2
Units: tbd
Description: <p>Mass Check Calculation for NH2</p>
http://lod.bco-dmo.org/id/dataset-parameter/20962.rdf
Name: MCC_CH2O
Units: tbd
Description: <p>Mass Check Calculation for CH2O</p>
http://lod.bco-dmo.org/id/dataset-parameter/20963.rdf
Name: MCC_SiO2
Units: tbd
Description: <p>Mass Check Calculation for SiO2</p>
http://lod.bco-dmo.org/id/dataset-parameter/20964.rdf
Name: MCC_Al2O3
Units: tbd
Description: <p>Mass Check Calculation for Al2O3</p>
http://lod.bco-dmo.org/id/dataset-parameter/20965.rdf
Name: MCC_Ca
Units: tbd
Description: <p>Mass Check Calculation for Ca</p>
http://lod.bco-dmo.org/id/dataset-parameter/20966.rdf
Name: MCC_Fe2O3
Units: tbd
Description: <p>Mass Check Calculation for Fe2O3</p>
http://lod.bco-dmo.org/id/dataset-parameter/20967.rdf
Name: MCC_MgO
Units: tbd
Description: <p>Mass Check Calculation for O</p>
http://lod.bco-dmo.org/id/dataset-parameter/20968.rdf
Name: MCC_PO4
Units: tbd
Description: <p>Mass Check Calculation for PO4</p>
http://lod.bco-dmo.org/id/dataset-parameter/20969.rdf
Name: MCC_ZnO
Units: tbd
Description: <p>Mass Check Calculation for ZnO</p>
http://lod.bco-dmo.org/id/dataset-parameter/20970.rdf
Name: MCC_BO3
Units: tbd
Description: <p>Mass Check Calculation for BO3</p>
http://lod.bco-dmo.org/id/dataset-parameter/20971.rdf
Name: MCC_NaCl
Units: tbd
Description: <p>Mass Check Calculation for NaCl</p>
http://lod.bco-dmo.org/id/dataset-parameter/20972.rdf
Name: MCC_KCl
Units: tbd
Description: <p>Mass Check Calculation for KCl</p>
http://lod.bco-dmo.org/id/dataset-parameter/20973.rdf
Name: MCC_SH2
Units: tbd
Description: <p>Mass Check Calculation for SH2</p>
http://lod.bco-dmo.org/id/dataset-parameter/20974.rdf
Name: MCC_total_element_mass_calculated
Units: tbd
Description: <p>Mass Check Calculation for total element mass calculated</p>
http://lod.bco-dmo.org/id/dataset-parameter/20975.rdf
Name: MCC_calculated_mass_minus_actual_mass
Units: tbd
Description: <p>Mass Check Calculation for calculated mass-actual mass</p>
http://lod.bco-dmo.org/id/dataset-parameter/20976.rdf
Name: MCC_mass_percent_excess
Units: percentage
Description: <p>Mass Check Calculation for mass percent excess</p>
http://lod.bco-dmo.org/id/dataset-parameter/20977.rdf
Name: d13C_filter_used
Units: text
Description: <p>d13C filter used</p>
http://lod.bco-dmo.org/id/dataset-parameter/20978.rdf
Name: delta_C13
Units: tbd
Description: <p>delta C13</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
22431
https://datadocs.bco-dmo.org/file/1VVMoZBtn5voZE/sinkpart.csv
sinkpart.csv
Primary data file for dataset ID 2911
download
https://osprey.bco-dmo.org/dataset/2911/data/download
download
onLine
dataset
<p>Traps were suspended from each of the buoys:<br />
- CENTRE: 20 m<br />
- IN: 40, 60, 100, 200 m<br />
- OUT: 20, 40, 60 and 100 m<br />
<br />
Traps were recovered several times.<br />
<br />
Deployment times (days):<br />
- CENTRE: 3.95, 2.83, 2.02, 1.98, 1.93, 2.05<br />
- IN: 3.99, 2.84, 2.03, 2.00, 1.95, 2.01<br />
- OUT: 5.17, 3.97, 3.42<br />
<br />
<br />
<i><b>Notes from original xls file: Sinking_particles.xls</b></i><br />
<b>Drifting sediment trap experiment by CREST/NIES</b><br />
<br />
(dm) 105 lines of comments before data begins.<br />
(dm) all comments except 7 lines prefaced with (dm) are copied from original file.<br />
Comments (dm) by fcsv file compiler<br />
<br />
(dm) NOTE that I traps 200m data collected with different style (Aono type trap)<br />
<br />
Cylindrical sediment trap of Knauer design was used.<br />
Eight traps deployed on each cross-frame.<br />
The cylindrical trap is separable into upper cylinder and bottom cup.<br />
The upper cylinder has a baffle at the open end. (see picture)<br />
<i><b>(DMO Note: No picture enclosed)</b></i><br />
<br />
- All the traps was filled with a high density gradient solution(approximately 39 permil containing 2 % formalin).<br />
- The solution was prepared with filtered seawater sampled nearbystation of the Fe infusion and NaCl was added.<br />
- At the deployment of the trap half volume of the high density solution might be replaced with surrounding seawater.<br />
- Center drifter was deployed to locate the center of Fe patch which had 20 m depth trap positioning buoys radar reflector and drogue.<br />
- Inside drifter was deployed at the distance of 0.3 mile from the center drifter which had 40 60 100 and 200 m depth traps positioning buoys and radar reflector.<br />
- Outside drifter was deployed at the distance of 20 mile from the center drifter which had 20 40 60 and 100 m depth traps positioning buoys and radar reflector.<br />
- Trap design of 200 m depth was different (0.16 m in diameter and 4 traps on a frame).<br />
- The detail of the design is described in Th234 data set file.<br />
<br />
20 m trap sample of center drifter in Run 2 was lost by an accidental event at deck recovery.<br />
20 m trap of center drifter in Run 4 was lost because of the breakage of hydro wire.<br />
<br />
Recovered sample in the bottom cup was transferred into 500 mL polystyrene bottle.<br />
Formalin was added at final concentration of 5 % for preservation until on shore analysis.<br />
The folmalin used was neutralized with sodium borate (Borax).<br />
Large zooplankton (swimmer was removed under microscope.<br />
<br />
<b>Regular design traps (Knauer Type)</b><br />
<br />
- 2-3: Nuclepore for biogenic Si analysis<br />
- 4: Nuclepore for metallic element analysis<br />
- 5: Nuclepore for spare<br />
- 6: GF/F for C N analysis by Carlo Erba elemental analyzer (EA1110)<br />
- 7: GF/F for C13 analysis of organic carbon by Delta Plus (Finnigan MAT combined with the Carlo Erba elemental analyzer)<br />
- 8: GF/F for spare<br />
<br />
Size of the filters were 47mm in diameter and pore size of Nuclepore filter was 0.6 micro meter.<br />
Pre-weighted filter was used for filtration.<br />
The pre-weighting procedure was identical to the sample weighting.<br />
Filter with trapped material was immediately frozen in -30 degree C freezer.<br />
Filters were dried in a vacuum freeze dryer.<br />
After drying the filter it was kept in a clean balance room controlled at 23 degree C and 50 % humidity.<br />
The reproducibility of the weight measurement was 0.05 mg for each filter.<br />
Total mass flux was calculated from 4 replicate measurement of Nuclepore filters.<br />
The weight of GF/F samples were also measured however the stability of the weight<br />
was poorer than that of Nuclepore filter.<br />
For C/N analysis GF/F filter was fumed in a desiccator containing conc.<br />
HCl to vaporize the inorganic carbon.<br />
<br />
<b>Trap dimensions:</b><br />
- Length (L) m 0.63<br />
- Inside diameter (Di) m 0.07<br />
- Outside diameter (Do) m 0.075<br />
- Aspect ratio (AR) 8.86<br />
- Collection area (A) m2 0.00385<br />
- Trap volume (V) m3 0.00239<br />
- Trap volume (V) litres 2.386<br />
- Baffle length (Lb) m 0.076<br />
- Baffle diameter (Dib) m 0.013<br />
- Baffle aspect ratio (ARb) 5.85<br />
<br />
Aono type trap (used I traps at 200 m only collection area 0.020106 m2<br />
Trap collection area 0.003848 m2</p>
Specified by the Principal Investigator(s)
<p><i><b>Notes from original xls file: Sinking_particles.xls</b></i><br />
<b>Total mass flux measurement</b><br />
Nuclepore filter weight with sample was measured for 4 cups from<br />
one depth of the drifting sediment trap.<br />
<br />
<b>CN analysis</b><br />
No. 6 GF/F filter was used for CN analysis. of <i>(DMO Note: ????)</i><br />
The filters were freeze-dried and then inorganic carbon was removed by an acid treatment in <i>(DMO Note: ????)</i><br />
The filters were freeze-dried and then fumed in desiccator with conc. HCl for 4-5 hours to remove inorganic carbon.<br />
Organic carbon and nitrogen were analyzed by EA1110 elemental analyzer (Carlo Erba) calibrated with acetoanilide (C8H9NO) standard reagent.<br />
C and N fluxes were calculated from mg yield of C and N with collection area of the trap and drifting period.<br />
<br />
ICPAES analysis of trapped material of drifting sediment trap acid digestion by HNO3/HClO4/HF ppm (mg/kg in dry wt.<br />
Nuclepore filter with sample was enclosed in a double sealed Teflon digestion vessel with stainless steel outer jacket with 2 ml HNO3 and 1ml HClO4.<br />
The digestion vessel was heated at 150 degree C for 7 hours to decompose organic material.<br />
One ml of HF was added into the Teflon vessel and silicate was decomposed on a hot plate.<br />
The final weight of sample solution was adjusted to 4 g and served to ICP atomic emission spectrometric analysis.<br />
Blank was corrected from with the results of the same procedure only using blank Nuclepore filter and acid reagents.<br />
Nippon Jarrel Ash type ICAP750 was used for the ICPAES analysis.<br />
<br />
Biogenic Si was measured using different Nuclepore filter with that for metallic element analysis.<br />
Nuclepore filter with trapped material was treated with 0.5 M Na2CO3 solution for 3 hours at 85 degree C.<br />
The extracted biogenic Si was measured by ICPAES same as metallic elements.<br />
Samples for 200 m depth (from Aono type trap had different history from other depths.<br />
Samples other than 200 m preserved under neutralized pH formalin solution and applied swimmer picking out procedure were filtered within two months after recovery.<br />
Because 200 m trap has two sample cups samples were divided after five months of recovery and served for ICP analysis for Si and other elements.<br />
C/N analysis fo samples for 200 m depth was done in similar period with other depths.<br />
The total mass of 200 m analysis suming up for C N Si and elements are significantly smaller than 100 %.<br />
These results are not accurate than other depths.<br />
Filter weight is that of the digested filter different from the average of four Nuclepore filter.<br />
<br />
Al Ca Fe Mg Mn P Sr Ti Zn This element group was well within ICPAES measurement range with minimum blank correction.<br />
The element group (Ba Cr Cu and Na K Shas analytical problem relating to blank correction and digestion efficiency<br />
B comes from preservative.<br />
Na K and S are nominated to check analytical accuracy to sum up the total mass which usually comes from seawater components.<br />
<br />
Elemental flux was calculated from concentration of the element multiplied by the total mass flux estimated from the trapped material weight on the four Nuclepore filter.<br />
Calculated sum of all the elements well agree with 100 %.<br />
Silicate Ca was estimated using crustal abundance of Ca to Al and the rest of Ca was estimated as carbonate.<br />
Inorganic carbon was estimated from the carbonate calcium.<br />
The total sum of elements other than 200 m samples are excellent.<br />
Preservation for 200 m samples might not be good.<br />
(dm) mass check calculations assume element in stated form.<br />
(dm) calculatedMass = flux / atomic mass element * molecular mass stated form<br />
<br />
<b>Isotope analysis of organic carbon of trapped material</b><br />
No. 7 GF/F filter for each trap was served for carbon isotopic analysis by<br />
Carlo Erba elemental analyzer (EA1110) combined with a mass spectrometer (Delta Plus Finniga MAT).<br />
The filter was fumed by HCl.<br />
Filter used indicates the division of sample served for combustion furnace of the elemental analyzer.<br />
MCC is Mass Check Calculation (added to params toward end of records<br />
<br />
<b>BCO-DMO Processing Notes</b><br />
CSV file generated by Doug Mackie from original spreadsheet Sinking_particles.xls<br />
<br />
<b>BCO-DMO Edits</b><br />
- Parameter names modified to conform to BCO-DMO convention<br />
- lat/lon for deployment and recovery added from buoy drift data</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
Sediment Trap
Sediment Trap
PI Supplied Instrument Name: Sediment Trap Instrument Name: Sediment Trap Instrument Short Name:Sediment Trap Instrument Description: Sediment traps are specially designed containers deployed in the water column for periods of time to collect particles from the water column falling toward the sea floor. In general a sediment trap has a jar at the bottom to collect the sample and a broad funnel-shaped opening at the top with baffles to keep out very large objects and help prevent the funnel from clogging. This designation is used when the specific type of sediment trap was not specified by the contributing investigator. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/33/
Cruise: KY0103-02
KY0103-02
Community Standard Description
International Council for the Exploration of the Sea
R/V Kaiyo-Maru
vessel
KY0103-02
Atsushi Tsuda
Ocean Research Institute - University of Tokyo
Community Standard Description
International Council for the Exploration of the Sea
R/V Kaiyo-Maru
vessel