Upcast profiles from Seacat CTD on MacLane pump from R/V Oceanus cruises OC449-02, and OC449-03 in the Eastern Atlantic and Indian Oceans in 2008 (SIRENA project)

Website: https://www.bco-dmo.org/dataset/3474
Version: 09 May 2011
Version Date: 2011-05-09

Project
» Sources of Iron to the EasterN tropical Atlantic (SIRENA)

Program
» Ocean Carbon and Biogeochemistry (OCB)
ContributorsAffiliationRole
Lam, Phoebe J.Woods Hole Oceanographic Institution (WHOI)Principal Investigator, Contact
Gegg, Stephen R.Woods Hole Oceanographic Institution (WHOI BCO-DMO)BCO-DMO Data Manager


Dataset Description

CTD *Up cast* data from Lam SBE19plus (Seacat) attached to end of the MacLane pump line
Note: These data not collected on R/V Islandia ISL0109 cruise

PI's Note (09 May 2011):
In comparing my pump seacat CTD to the ship's CTD, I've discovered that the ship's CTD's fluorescence and beam attenuation are no good, at least for OC449-3.  The ship's fluorometer was clearly just not working.  The ship's transmissometer misbehaved in a more subtle manner--oceanographically consistent, but of a different pattern than my pump seacat data.  I concluded that my pump seacat CTD's transmissometer is the "correct" one by comparing to discrete particulate carbon measurements on particles collected on my pumps.  Both particulate carbon concentrations and beam attenuation from my pump seacat CTD show a minimum at 500m at OC449-3 station 3, whereas the ship's CTD shows an anomalous minimum in subsurface beam attenuation at station 2, which is not seem in the particulate carbon concentrations.


Acquisition Description

The CTD was allowed to debubble briefly just below the surface before paying out wire, but this was often insufficient to get out all bubbles, so upper ~15m of the downcasts are generally not good.

The transmissometer windows were wiped clean with distilled water before and after each cast, and kept capped in between deployments. The voltage of the transmissometer in air (Vair) and in the dark (Vdark) were read after each deployment to monitor drift, though beam attenuation reported here do not yet take shipboard baseline measurements into account, and use the calibrations of the transmissometer from the beginning of OC449-2 cruise.

See: "VIII. Protocols for Optics: Transmissometer and Scattering Sensors" in the Sampling and Sample-handling Protocols for GEOTRACES Cruises, Edited by the 2010 GEOTRACES Standards and Intercalibration Committee.


Processing Description

SBE43 oxygen sensor was calibrated to 32 Winkler titrations conducted on first leg (OC449-2) by Taka Ito at stations 9,13,17,22.

See: "VIII. Protocols for Optics: Transmissometer and Scattering Sensors" in the Sampling and Sample-handling Protocols for GEOTRACES Cruises, Edited by the 2010 GEOTRACES Standards and Intercalibration Committee.

BCO-DMO Processing Notes:
- Awk written to reformat original .cnv files contributed by Phoebe Lam
- AWK: SIRENA_CTD_Pump_2_BCODMO.awk


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Parameters

ParameterDescriptionUnits
cruise_idSIRENA Cruise Id text
stationStation Number integer
castCast Number integer
CTD_DataSet_IdCTD Dataset Id text
dateStation date YYYYMMDD
timeStation time HHMMSS
latStation latitude (South is negative) decimal degrees
lonStation longitude (West is negative) decimal degrees
sampled_forSampling text
depth_stationStation Depth meters
Temperaturetv290C: Temperature ITS-90 degrees celsius
Conductivityc0S/m: Conductivity S/m
PressureprdM: Pressure Strain Gauge decibars
Oxygensbeox0Mm/Kg: Oxygen; SBE 43 umol/Kg
Batbat: Beam Attenuation Chelsea/Seatech/Wetlab CStar 1/m
Fluor FlECO-AFL: Fluorescence Wetlab ECO-AFL/FL mg/m^3
Upoly0upoly0: Upoly 0 Turbidity Meter NTU(??)
V1 v1: Voltage 1 volts
OxygenVsbeox0V: Oxygen Voltage SBE 43 volts
Salinitysal00: Salinity PSU
Densitysigma-é00: Density sigma-theta Kg/m^3
DepthdepSM: Depth salt water lat=12 meters
PoTemppotemp090C: Potential Temperature ITS-90 degrees celsius
Oxygen_SatoxsatML/L: Oxygen Saturation ml/l
flagflag nd


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Instruments

Dataset-specific Instrument Name
CTD Sea-Bird SEACAT 19
Generic Instrument Name
CTD Sea-Bird SEACAT 19
Dataset-specific Description
* Sea-Bird SBE19plus Data File: * FileName = C:dataSIRENAseacat awhexfiles20080809_stn3_d1.hex * Software Version 1.59 * Temperature SN =  5236 * Conductivity SN =  5236 * System UpLoad Time = Aug 10 2008 14:20:50 ** KN192-05 SeacatSIRENA OC449-2 Seacat ** Nov-Dec 2007 GMTAugust 2008 ** TMCR or McLane DeploymentMcLane Deployments
Generic Instrument Description
The Sea-Bird SBE 19 SEACAT Recorder measures conductivity, temperature, and pressure (depth). The SEACAT is self-powered and self-contained and can be deployed in profiling or moored mode. The SBE 19 SEACAT was replaced in 2001 by the 19plus. more information from Sea-Bird Electronics


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Deployments

OC449-02

Website
Platform
R/V Oceanus
Start Date
2008-08-06
End Date
2008-09-04
Description
R/V Oceanus Voyage #449, Leg II was a trans-Atlantic transect from Bridgetown, Barbados to Porto Grande, Cape Verde (5-20 degrees North, 20-58 degrees West). The main scientific objective was to test the hypothesis that the continental margin of northwest Africa provides a significant subsurface supply of iron to the open eastern tropical Atlantic. Measurements include: CTD profiles, U/W Tow Fish Water Sampler, Trace Metal Profiles mostly in upper 1000 meters and one cast to 6000 meters, SeaSoar SeaMac Winch to deploy eleven battery-operated in-situ pumps with sci-provided non-metallic wire off the 01 deck using the side A-frame and SSSG non-metallic block and Gravity Coring WHOI cruise planning synopsis Cruise information and original data are available from the NSF R2R data catalog.

Acquisition Description
* Sea-Bird SBE19plus Data File: * FileName = C:dataSIRENAseacat awhexfiles20080809_stn3_d1.hex * Software Version 1.59 * Temperature SN =  5236 * Conductivity SN =  5236 * System UpLoad Time = Aug 10 2008 14:20:50 ** KN192-05 SeacatSIRENA OC449-2 Seacat ** Nov-Dec 2007 GMTAugust 2008 ** TMCR or McLane DeploymentMcLane Deployments ** Lat Long16N28.712, 52W21.563 ** Station 3, McLane Deploy 1 to 740m * ds * SeacatPlus V 1.6b  SERIAL NO. 5236    10 Aug 2008  18:17:09 * vbatt = 11.1, vlith =  8.8, ioper =  61.6 ma, ipump =  40.3 ma,  * iext01 =  42.8 ma * iext23 =  50.6 ma *  * status = not logging * number of scans to average = 1 * samples = 79872, free = 361633, casts = 1 * mode = profile, minimum cond freq = 3046, pump delay = 60 sec * autorun = no, ignore magnetic switch = no * battery type = alkaline, battery cutoff =  7.3 volts * pressure sensor = strain gauge, range = 10000.0 * SBE 38 = no, Gas Tension Device = no * Ext Volt 0 = yes, Ext Volt 1 = yes, Ext Volt 2 = yes, Ext Volt 3 = yes * echo commands = yes * output format = raw HEX * append UCSD sigma-t, V * S> *  * SeacatPlus V 1.6b  SERIAL NO. 5236    10 Aug 2008  18:17:23 * temperature:  10-oct-07 *     TA0 = 1.233097e-03 *     TA1 = 2.599901e-04 *     TA2 = -6.217010e-08 *     TA3 = 1.424099e-07 *     TOFFSET = 0.000000e+00 * conductivity:  10-oct-07 *     G = -1.011156e+00 *     H = 1.570412e-01 *     I = -5.888161e-04 *     J = 6.994908e-05 *     CF0 = 2.546154e+03 *     CPCOR = -9.570000e-08 *     CTCOR = 3.250000e-06 *     CSLOPE = 1.000000e+00 * pressure S/N = 227881, range = 10000 psia:  04-oct-07 *     PA0 = 1.049048e+01 *     PA1 = 1.113019e-01 *     PA2 = -1.291358e-09 *     PTCA0 = 5.244870e+05 *     PTCA1 = 4.940270e+00 *     PTCA2 = 4.455964e-03 *     PTCB0 = 2.759300e+01 *     PTCB1 = 3.766667e-03 *     PTCB2 = 0.000000e+00 *     PTEMPA0 = 5.933266e+01 *     PTEMPA1 = -5.963576e+01 *     PTEMPA2 = 1.426064e+01 *     POFFSET = 0.000000e+00 * volt 0: offset = -4.723474e-02, slope = 1.247667e+00 * volt 1: offset = -4.757158e-02, slope = 1.247768e+00 * volt 2: offset = -4.668316e-02, slope = 1.246813e+00 * volt 3: offset = -4.697684e-02, slope = 1.247485e+00 *     EXTFREQSF = 1.000012e+00 * dh * cast   1 09 Aug 2008 16:14:04 samples 1 to 79872, avg = 1, stop = mag switch * S>  # nquan = 15 # nvalues = 760                          # units = specified # name 0 = tv290C: Temperature [ITS-90, deg C] # name 1 = c0S/m: Conductivity [S/m] # name 2 = prdM: Pressure, Strain Gauge [db] # name 3 = sbeox0Mm/Kg: Oxygen, SBE 43 [umol/Kg] # name 4 = bat: Beam Attenuation, Chelsea/Seatech/Wetlab CStar [1/m] # name 5 = flECO-AFL: Fluorescence, Wetlab ECO-AFL/FL [mg/m^3] # name 6 = upoly0: Upoly 0, Turbidity Meter # name 7 = v1: Voltage 1 # name 8 = sbeox0V: Oxygen Voltage, SBE 43 # name 9 = sal00: Salinity [PSU] # name 10 = sigma-é00: Density [sigma-theta, Kg/m^3] # name 11 = depSM: Depth [salt water, m], lat = 12 # name 12 = potemp090C: Potential Temperature [ITS-90, deg C] # name 13 = oxsatML/L: Oxygen Saturation [ml/l] # name 14 = flag: flag # span 0 =     6.3620,    29.2534        # span 1 =   1.230963,   5.842750        # span 2 =      1.006,    765.785        # span 3 =    106.811,    215.696        # span 4 =    -0.0179,     4.9453        # span 5 =    -0.1484,    15.6959        # span 6 =  0.0114213,  4.6879689        # span 7 =     1.9703,     4.8128        # span 8 =     1.3021,     2.6530        # span 9 =     7.4903,    37.2916        # span 10 =     1.4659,    27.3130       # span 11 =      1.000,    760.000       # span 12 =     6.2928,    29.2531       # span 13 =    4.44782,    6.87465       # span 14 = 0.0000e+00, 0.0000e+00       # interval = meters: 1                   # start_time = Aug 09 2008 16:14:04 # bad_flag = -9.990e-29 # sensor 0 = Frequency 0  temperature, 5236, 10-OCT-07 # sensor 1 = Frequency 1  conductivity, 5236, 10-OCT-07, cpcor = -9.5700e-08 # sensor 2 = Pressure Number # sensor 3 = Extrnl Volt  0  Oxygen, SBE, primary, 1336, 02-Oct-07 # sensor 4 = Extrnl Volt  1  transmissometer, primary, CST-1070DR, 9-Aug-08 # sensor 5 = Extrnl Volt  2  WET Labs, ECO_AFL # sensor 6 = Extrnl Volt  3  userpoly 0, FLNTURTD-870, 9-OCT-2007 # datcnv_date = Sep 01 2008 16:47:14, 7.14e # datcnv_in = c:dataSIRENAseacat awhexfiles20080809_stn3_d1.hex C:dataSIRENAseacatprocessed20080901OC449-2SIRENA.con # datcnv_skipover = 500 # alignctd_date = Sep 01 2008 16:47:21, 7.14e # alignctd_in = c:dataSIRENAseacatprocessed20080809_stn3_d1.cnv # alignctd_adv = tv290C 0.500, c0S/m -0.100, sbeox0Mm/Kg 4.000                                                                                                                                                                        # celltm_date = Sep 01 2008 16:47:22, 7.14e # celltm_in = c:dataSIRENAseacatprocessed20080809_stn3_d1.cnv # celltm_alpha = 0.0400, 0.0000 # celltm_tau = 8.0000, 0.0000 # celltm_temp_sensor_use_for_cond = primary,  # Derive_date = Sep 01 2008 16:47:23, 7.14e # Derive_in = c:dataSIRENAseacatprocessed20080809_stn3_d1.cnv C:dataSIRENAseacatprocessed20080901OC449-2SIRENA.con # binavg_date = Sep 01 2008 16:47:34, 7.14e # binavg_in = c:dataSIRENAseacatprocessed20080809_stn3_d1.cnv # binavg_bintype = meters # binavg_binsize = 1 # binavg_excl_bad_scans = no # binavg_skipover = 0 # binavg_surface_bin = yes, min = 0.000, max = 0.000, value = 0.000 # split_date = Sep 01 2008 16:47:49, 7.14e # split_in = c:dataSIRENAseacatprocessed20080809_stn3_d1bin1m.cnv # split_excl_bad_scans = yes # file_type = ascii *END*

OC449-03

Website
Platform
R/V Oceanus
Start Date
2008-09-08
End Date
2008-09-18
Description
R/V Oceanus Voyage #449, Leg III was a Coastal transect between Cape Verde and the Mauritanian coast (17N/24.5W to 20N/17.3W). The main scientific objective was to test the hypothesis that the continental margin of northwest Africa provides a significant subsurface supply of iron to the open eastern tropical Atlantic. The planned scientific activities include CTD casts, In Situ Water Pump casts for large volume water collection, Gravity Coring, and Aerosol sampling. Scientific personnel: Dr. Phoebe Lam, Chief Scientist, Woods Hole Oceanographic Institution Dr. Henrieta Dulaiova, Woods Hole Oceanographic Institution Mr. Steven Pike, Woods Hole Oceanographic Institution Mr. James Saenz, Woods Hole Oceanographic Institution Dr. Aron Stubbins, Old Dominion University Ms. Hongmei Chen, Old Dominion University Dr. Edward Michael Perdue, Georgia Institute of Technology Mr. Nelson Green, Georgia Institute of Technology Mr. Péricles Silva, Instituto Nacional de Desenvolvimento das Pescas (INDP) Dr. Anibal Medina, Instituto Nacional de Desenvolvimento das Pescas (INDP) Mr. Alexander Dorsk, Woods Hole Oceanographic Institution WHOI cruise planning synopsis> Cruise information and original data are available from the NSF R2R data catalog.

Acquisition Description
* Sea-Bird SBE19plus Data File: * FileName = C:dataSIRENAseacat awhexfiles20080809_stn3_d1.hex * Software Version 1.59 * Temperature SN =  5236 * Conductivity SN =  5236 * System UpLoad Time = Aug 10 2008 14:20:50 ** KN192-05 SeacatSIRENA OC449-2 Seacat ** Nov-Dec 2007 GMTAugust 2008 ** TMCR or McLane DeploymentMcLane Deployments ** Lat Long16N28.712, 52W21.563 ** Station 3, McLane Deploy 1 to 740m * ds * SeacatPlus V 1.6b  SERIAL NO. 5236    10 Aug 2008  18:17:09 * vbatt = 11.1, vlith =  8.8, ioper =  61.6 ma, ipump =  40.3 ma,  * iext01 =  42.8 ma * iext23 =  50.6 ma *  * status = not logging * number of scans to average = 1 * samples = 79872, free = 361633, casts = 1 * mode = profile, minimum cond freq = 3046, pump delay = 60 sec * autorun = no, ignore magnetic switch = no * battery type = alkaline, battery cutoff =  7.3 volts * pressure sensor = strain gauge, range = 10000.0 * SBE 38 = no, Gas Tension Device = no * Ext Volt 0 = yes, Ext Volt 1 = yes, Ext Volt 2 = yes, Ext Volt 3 = yes * echo commands = yes * output format = raw HEX * append UCSD sigma-t, V * S> *  * SeacatPlus V 1.6b  SERIAL NO. 5236    10 Aug 2008  18:17:23 * temperature:  10-oct-07 *     TA0 = 1.233097e-03 *     TA1 = 2.599901e-04 *     TA2 = -6.217010e-08 *     TA3 = 1.424099e-07 *     TOFFSET = 0.000000e+00 * conductivity:  10-oct-07 *     G = -1.011156e+00 *     H = 1.570412e-01 *     I = -5.888161e-04 *     J = 6.994908e-05 *     CF0 = 2.546154e+03 *     CPCOR = -9.570000e-08 *     CTCOR = 3.250000e-06 *     CSLOPE = 1.000000e+00 * pressure S/N = 227881, range = 10000 psia:  04-oct-07 *     PA0 = 1.049048e+01 *     PA1 = 1.113019e-01 *     PA2 = -1.291358e-09 *     PTCA0 = 5.244870e+05 *     PTCA1 = 4.940270e+00 *     PTCA2 = 4.455964e-03 *     PTCB0 = 2.759300e+01 *     PTCB1 = 3.766667e-03 *     PTCB2 = 0.000000e+00 *     PTEMPA0 = 5.933266e+01 *     PTEMPA1 = -5.963576e+01 *     PTEMPA2 = 1.426064e+01 *     POFFSET = 0.000000e+00 * volt 0: offset = -4.723474e-02, slope = 1.247667e+00 * volt 1: offset = -4.757158e-02, slope = 1.247768e+00 * volt 2: offset = -4.668316e-02, slope = 1.246813e+00 * volt 3: offset = -4.697684e-02, slope = 1.247485e+00 *     EXTFREQSF = 1.000012e+00 * dh * cast   1 09 Aug 2008 16:14:04 samples 1 to 79872, avg = 1, stop = mag switch * S>  # nquan = 15 # nvalues = 760                          # units = specified # name 0 = tv290C: Temperature [ITS-90, deg C] # name 1 = c0S/m: Conductivity [S/m] # name 2 = prdM: Pressure, Strain Gauge [db] # name 3 = sbeox0Mm/Kg: Oxygen, SBE 43 [umol/Kg] # name 4 = bat: Beam Attenuation, Chelsea/Seatech/Wetlab CStar [1/m] # name 5 = flECO-AFL: Fluorescence, Wetlab ECO-AFL/FL [mg/m^3] # name 6 = upoly0: Upoly 0, Turbidity Meter # name 7 = v1: Voltage 1 # name 8 = sbeox0V: Oxygen Voltage, SBE 43 # name 9 = sal00: Salinity [PSU] # name 10 = sigma-é00: Density [sigma-theta, Kg/m^3] # name 11 = depSM: Depth [salt water, m], lat = 12 # name 12 = potemp090C: Potential Temperature [ITS-90, deg C] # name 13 = oxsatML/L: Oxygen Saturation [ml/l] # name 14 = flag: flag # span 0 =     6.3620,    29.2534        # span 1 =   1.230963,   5.842750        # span 2 =      1.006,    765.785        # span 3 =    106.811,    215.696        # span 4 =    -0.0179,     4.9453        # span 5 =    -0.1484,    15.6959        # span 6 =  0.0114213,  4.6879689        # span 7 =     1.9703,     4.8128        # span 8 =     1.3021,     2.6530        # span 9 =     7.4903,    37.2916        # span 10 =     1.4659,    27.3130       # span 11 =      1.000,    760.000       # span 12 =     6.2928,    29.2531       # span 13 =    4.44782,    6.87465       # span 14 = 0.0000e+00, 0.0000e+00       # interval = meters: 1                   # start_time = Aug 09 2008 16:14:04 # bad_flag = -9.990e-29 # sensor 0 = Frequency 0  temperature, 5236, 10-OCT-07 # sensor 1 = Frequency 1  conductivity, 5236, 10-OCT-07, cpcor = -9.5700e-08 # sensor 2 = Pressure Number # sensor 3 = Extrnl Volt  0  Oxygen, SBE, primary, 1336, 02-Oct-07 # sensor 4 = Extrnl Volt  1  transmissometer, primary, CST-1070DR, 9-Aug-08 # sensor 5 = Extrnl Volt  2  WET Labs, ECO_AFL # sensor 6 = Extrnl Volt  3  userpoly 0, FLNTURTD-870, 9-OCT-2007 # datcnv_date = Sep 01 2008 16:47:14, 7.14e # datcnv_in = c:dataSIRENAseacat awhexfiles20080809_stn3_d1.hex C:dataSIRENAseacatprocessed20080901OC449-2SIRENA.con # datcnv_skipover = 500 # alignctd_date = Sep 01 2008 16:47:21, 7.14e # alignctd_in = c:dataSIRENAseacatprocessed20080809_stn3_d1.cnv # alignctd_adv = tv290C 0.500, c0S/m -0.100, sbeox0Mm/Kg 4.000                                                                                                                                                                        # celltm_date = Sep 01 2008 16:47:22, 7.14e # celltm_in = c:dataSIRENAseacatprocessed20080809_stn3_d1.cnv # celltm_alpha = 0.0400, 0.0000 # celltm_tau = 8.0000, 0.0000 # celltm_temp_sensor_use_for_cond = primary,  # Derive_date = Sep 01 2008 16:47:23, 7.14e # Derive_in = c:dataSIRENAseacatprocessed20080809_stn3_d1.cnv C:dataSIRENAseacatprocessed20080901OC449-2SIRENA.con # binavg_date = Sep 01 2008 16:47:34, 7.14e # binavg_in = c:dataSIRENAseacatprocessed20080809_stn3_d1.cnv # binavg_bintype = meters # binavg_binsize = 1 # binavg_excl_bad_scans = no # binavg_skipover = 0 # binavg_surface_bin = yes, min = 0.000, max = 0.000, value = 0.000 # split_date = Sep 01 2008 16:47:49, 7.14e # split_in = c:dataSIRENAseacatprocessed20080809_stn3_d1bin1m.cnv # split_excl_bad_scans = yes # file_type = ascii *END*


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Project Information

Sources of Iron to the EasterN tropical Atlantic (SIRENA)


Coverage: Tropical North Atlantic, focusing on a Cape Verde to Mauritanian Coast transect


We will test the hypothesis that the continental margin of northwest Africa provides a significant subsurface supply of iron to the open eastern tropical Atlantic that supplements dust.

We will test our continental margin hypothesis with a wintertime visit to the new Tropical Eastern North Atlantic Time-Series Observatory (TENATSO) near Cape Verde, located in the eastern tropical Atlantic about 850 km downstream of Mauritanian coastal upwelling, and a summertime cross-shelf transect from the Mauritanian coast to TENATSO with Ed Boyle, who is already funded to study iron in the tropical Atlantic. Our cross-shelf transect will closely examine the potential lateral source of Fe, and evaluate it against an atmospheric source of Fe. Our proposal takes advantage of a novel combination of measurements to uniquely determine the importance of lateral transport vs. dust inputs and subsurface remineralization as Fe sources to the surface ocean. These measurements include:

1) synchrotron x-ray analysis of particulate iron "hotspots": micron-size particles of iron detected with a synchrotron x-ray fluorescence microprobe have been previously shown to exhibit maxima at depths of continental margin input in two ocean basins. Further, the Ti:Fe ratios and the mineralogy of these particles of iron can distinguish dust-derived vs. continental margin iron. This is a qualitative tracer for a dust vs continental margin source of Fe.

2) radium isotopes: the major source of 228Ra into the study area is by diffusion from 232Th-bearing near shore and continental shelf sediments. An open-ocean to coastal transect of 228Ra activities will allow us to determine horizontal mass transfer. 228Ra will be used to quantify the lateral flux of iron from the shelf.

3) 234Th profiles: high vertical resolution 234Th profiles can be used to determine the depth of particle remineralization. This will be used to determine whether or not putative subsurface Fe maxima are from remineralization of Fe-bearing particles.

TENATSO (Tropical Eastern North Atlantic Time-Series Observatory) time series station
16°N, 24°W, North-east of Mindelo, Sao Vicente, Cape Verde

TENATSO Home

TENATSO/SIRENA at Cafe Thorium/WHOI



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Program Information

Ocean Carbon and Biogeochemistry (OCB)


Coverage: Global


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.



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Funding

Funding SourceAward
NSF Division of Ocean Sciences (NSF OCE)

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