Pigments; chlorophyll and phaeophytin data collected during the R/V Weatherbird II WB0409, WB0413, WB0506, WB0508 cruises in the Sargasso Sea, 2004-2005 (EDDIES project)

Website: https://www.bco-dmo.org/dataset/3022
Version: 01 June 2007
Version Date: 2007-06-01

Project
» Eddies Dynamics, Mixing, Export, and Species composition (EDDIES)

Program
» Ocean Carbon and Biogeochemistry (OCB)
ContributorsAffiliationRole
Bates, NicholasBermuda Biological Station for Research (BBSR)Principal Investigator
Chandler, Cynthia L.Woods Hole Oceanographic Institution (WHOI BCO-DMO)BCO-DMO Data Manager


Dataset Description


 dates:           24 June 2004 to 24 August 2005 (20040624-20050824) 
 location:        Sargasso Sea; N: 31.9278  S: 29.7799  W: -69.4429  E: -64.0818
 project/cruise:  EDDIES/WB0409 2004 Transect 1 (EDT1)
                  EDDIES/WB0413 2004 Transect 2 (EDT2)
                  EDDIES/WB0506 2005 Transect 1 (EDT3)
                  EDDIES/WB0508 2005 Transect 2 (EDT4)
 platform:        R/V Weatherbird II
 

 Methodology: see Chapter 14: Determination of Chlorophyll & Phaeopigments in
    U.S. JGOFS BATS Method Manual Version 4 (1997).  Bermuda Atlantic Time-Series 
    Study April 1997. Anthony H. Knap, Anthony F. Michaels et al., 136 pp.
    (link to BATS Method Manual version 4 local copy)
 
 
 Change history: YYMMDD
   061213: downloaded original data from EDDIES data web site;
           Excel file: WB_EDDIES_CHL_Data.xls
   070116: put station_name, sta_ref, and comments in separate columns;
           event and station number added from cruise event log
   070117: added to OCB database by Nancy Copley & Cyndy Chandler, OCB DMO
   070601: corrected station numbers for WB0506 and WB0506 data

[ table of contents | back to top ]

Data Files

File
pigments_WB.csv
(Comma Separated Values (.csv), 14.85 KB)
MD5:e10053b8bfade444a4cc53851b3d2142
Primary data file for dataset ID 3022

[ table of contents | back to top ]

Parameters

ParameterDescriptionUnits
Cruise_IDcruise ID designation code alphanumeric
eventunique sampling event number YYYYMMDDhhmm
stastation number dimensionless
datedate (GMT), start of sampling YYYYMMDD
time_starttime at start of measurement (GMT) hhmm
time_endtime at start of measurement (GMT) hhmm
latlatitude at start of measurement, negative denotes South decimal degrees
lonlongitude at start of measurement, negative denotes West decimal degrees
lat_endlatitude at end of measurement, negative denotes South decimal degrees
lon_endlongitude at end of measurement, negative denotes West decimal degrees
staNamename of station dimensionless
sta_refreference station indicator dimensionless
commentscomments, station location descriptor dimensionless
depth_ndepth; nominal meters
chl_a_mg_m3chlorophyll-a milligrams/cubic meter
phaeophaeophytin micrograms/liter
phaeo_mg_lphaeophytin in original units milligram/liter


[ table of contents | back to top ]

Instruments

Dataset-specific Instrument Name
Niskin Bottle
Generic Instrument Name
Niskin bottle
Generic Instrument Description
A Niskin bottle (a next generation water sampler based on the Nansen bottle) is a cylindrical, non-metallic water collection device with stoppers at both ends. The bottles can be attached individually on a hydrowire or deployed in 12, 24, or 36 bottle Rosette systems mounted on a frame and combined with a CTD. Niskin bottles are used to collect discrete water samples for a range of measurements including pigments, nutrients, plankton, etc.


[ table of contents | back to top ]

Deployments

WB0409

Website
Platform
R/V Weatherbird II
Start Date
2004-06-23
End Date
2004-07-02
Description
EDT1 2004 Transect 1 cruise Funded by: NSF OCE-0241310

Methods & Sampling
PI: Nick Bates of: Bermuda Biological Station for Research (BBSR) dataset: Fluorometric pigments; chlorophyll and phaeophytin dates: 24 June 2004 to 02 July 2004 (20040624-20040702) location: N: 31.9278 S: 29.7799 W: -65.5583 E: -64.0818 project/cruise: EDDIES/WB0409 2004 Transect 1 (EDT1) platform: R/V Weatherbird II Methodology: see Chapter 14: Determination of Chlorophyll & Phaeopigments in U.S. JGOFS BATS Method Manual Version 4 (1997). Bermuda Atlantic Time-Series Study April 1997. Anthony H. Knap, Anthony F. Michaels et al., 136 pp. (link to BATS Method Manual version 4 local copy) Change history: YYMMDD 061213: downloaded original data from EDDIES data web site; Excel file: WB_EDDIES_CHL_Data.xls 070116: put station_name, sta_ref, and comments in separate columns; event and station number added from cruise event log 070117: added to OCB database by Nancy Copley & Cyndy Chandler, OCB DMO OCB DMO Note: These data are part of a multi-ship data set (see full data set).

WB0413

Website
Platform
R/V Weatherbird II
Start Date
2004-08-02
End Date
2004-08-11
Description
EDT2 2004 Transect 2 cruise Funded by: NSF OCE-0241310

Methods & Sampling
PI: Nick Bates of: Bermuda Biological Station for Research (BBSR) dataset: Fluorometric pigments; chlorophyll and phaeophytin dates: 04 August 2004 to 10 August 2004 (20040804-20040810) location: N: 31.3037 S: 30.6786 W: -65.7843 E: -65.7341 project/cruise: EDDIES/WB0413 2004 Transect 2 (EDT2) platform: R/V Weatherbird II Methodology: see Chapter 14: Determination of Chlorophyll & Phaeopigments in U.S. JGOFS BATS Method Manual Version 4 (1997). Bermuda Atlantic Time-Series Study April 1997. Anthony H. Knap, Anthony F. Michaels et al., 136 pp. (link to BATS Method Manual version 4 local copy) Change history: YYMMDD 061213: downloaded original data from EDDIES data web site; Excel file: WB_EDDIES_CHL_Data.xls 070116: put station_name, sta_ref, and comments in separate columns; event and station number added from cruise event log 070117: added to OCB database by Nancy Copley & Cyndy Chandler, OCB DMO OCB DMO Note: These data are part of a multi-ship data set (see full data set).

WB0506

Website
Platform
R/V Weatherbird II
Start Date
2005-07-06
End Date
2005-07-15
Description
EDT3 2005 Transect 1 cruise Funded by: NSF OCE-0241310

Methods & Sampling
PI: Nick Bates of: Bermuda Biological Station for Research (BBSR) dataset: Fluorometric pigments; chlorophyll and phaeophytin dates: 07 July 2005 to 14 July 2005 (20050707-20050714) location: N: 31.0825 S: 30.5361 W: -66.7133 E: -65.8709 project/cruise: EDDIES/WB0506 2005 Transect 1 (EDT3) platform: R/V Weatherbird II Methodology: see Chapter 14: Determination of Chlorophyll & Phaeopigments in U.S. JGOFS BATS Method Manual Version 4 (1997). Bermuda Atlantic Time-Series Study April 1997. Anthony H. Knap, Anthony F. Michaels et al., 136 pp. (link to BATS Method Manual version 4 local copy) Change history: YYMMDD 061213: downloaded original data from EDDIES data web site; Excel file: WB_EDDIES_CHL_Data.xls 070116: put station_name, sta_ref, and comments in separate columns; event and station number added from cruise event log 070117: added to OCB database by Nancy Copley & Cyndy Chandler, OCB DMO 070601: corrected station numbers for WB0506 data OCB DMO Note: These data are part of a multi-ship data set (see full data set).

WB0508

Website
Platform
R/V Weatherbird II
Start Date
2005-08-17
End Date
2005-08-26
Description
EDT4 2005 Transect 2 Funded by: NSF OCE-0241310

Methods & Sampling
PI: Nick Bates of: Bermuda Biological Station for Research (BBSR) dataset: Fluorometric pigments; chlorophyll and phaeophytin dates: 18 August 2005 to 24 August 2005 (20050818-20050824) location: N: 30.1864 S: 29.6154 W: -69.4429 E: -68.3775 project/cruise: EDDIES/WB0508 2005 Transect 2 (EDT4) platform: R/V Weatherbird II Methodology: see Chapter 14: Determination of Chlorophyll & Phaeopigments in U.S. JGOFS BATS Method Manual Version 4 (1997). Bermuda Atlantic Time-Series Study April 1997. Anthony H. Knap, Anthony F. Michaels et al., 136 pp. (link to BATS Method Manual version 4 local copy) Change history: YYMMDD 061213: downloaded original data from EDDIES data web site; Excel file: WB_EDDIES_CHL_Data.xls 070116: put station_name, sta_ref, and comments in separate columns; event and station number added from cruise event log 070117: added to OCB database by Nancy Copley & Cyndy Chandler, OCB DMO 070601: corrected station numbers for WB0508 data OCB DMO Note: These data are part of a multi-ship data set (see full data set).


[ table of contents | back to top ]

Project Information

Eddies Dynamics, Mixing, Export, and Species composition (EDDIES)


Coverage: Sargasso Sea


The original title of this project from the NSF award is: Collaborative Research: Impacts of Eddies and Mixing on Plankton Community Structure and Biogeochemical Cycling in the Sargasso Sea".

Prior results have documented eddy-driven transport of nutrients into the euphotic zone and the associated accumulation of chlorophyll. However, several key aspects of mesoscale upwelling events remain unresolved by the extant database, including: (1) phytoplankton physiological response, (2) changes in community structure, (3) impact on export out of the euphotic zone, (4) rates of mixing between the surface mixed layer and the base of the euphotic zone, and (5) implications for biogeochemistry and differential cycling of carbon and associated bioactive elements. This leads to the following hypotheses concerning the complex, non-linear biological regulation of elemental cycling in the ocean:

H1: Eddy-induced upwelling, in combination with diapycnal mixing in the upper ocean, introduces new nutrients into the euphotic zone.

H2: The increase in inorganic nutrients stimulates a physiological response within the phytoplankton community.

H3: Differing physiological responses of the various species bring about a shift in community structure.

H4: Changes in community structure lead to increases in export from, and changes in biogeochemical cycling within, the upper ocean.

Publications

Andrews, J.E., Hartin, C., and Buesseler, K.O.. "7Be Analyses in Seawater by Low Background Gamma-Spectroscopy.," Journal of Radioanalytical and Nuclear Chemistry, v.277, 2008, p. 253.

Andrews, J.E., Hartin, C., Buesseler, K.O.. "7Be Analyses in Seawater by Low Background Gamma-Spectroscopy," Journal of Radioanalytical and Nuclear Chemistry, v.277, 2008, p. 253.

Benitez-Nelson, C.R. and McGillicuddy, D.J.. "Mesoscale Physical-Biological-Biogeochemical Linkages in the Open Ocean: An Introduction to the Results of the E-Flux and EDDIES Programs.," Deep Sea Research II, v.55, 2008, p. 1133.

Benitez-Nelson, C.R. and McGillicuddy, D.J.. "Mesoscale Physical-Biological-Biogeochemical Linkages in the Open Ocean: An Introduction to the Results of the E-Flux and EDDIES Programs," Deep-Sea Research II, v.55, 2008, p. 1133.

Bibby, T.S., Gorbunov, M.Y., Wyman, K.W., Falkowski, P.G.. "Photosynthetic community responses to upwelling in mesoscale eddies in the subtropical North Atlantic and Pacific Oceans," Deep-Sea Research Part II: Topical Studies in Oceanography, v.55, 2008, p. 1310.

Buesseler, K.O., Lamborg, C., Cai, P., Escoube, R., Johnson, R., Pike, S., Masque, P., McGillicuddy, D.J., Verdeny, E.. "Particle Fluxes Associated with Mesoscale Eddies in the Sargasso Sea," Deep Sea Research II, v.55, 2008, p. 1426.

Carlson, C.A., del Giorgio, P., Herdl, G.. "Microbes and the dissipation of energy and respiration: From cells to ecosystems," Oceanography, v.20, 2007, p. 89.

Davis, C.S., and McGillicuddy, D.J.. "Transatlantic Abundance of the N2-Fixing Colonial Cyanobacterium Trichodesmium," Science, v.312, 2006, p. 1517.

Ewart, C.S., Meyers, M.K., Wallner, E., McGillicuddy, D.J., Carlson, C.A.. "Microbial Dynamics in Cyclonic and Anticyclonic Mode-Water Eddies in the Northwestern Sargasso Sea," Deep Sea Research II, v.55, 2008, p. 1334.

Ewart, C.S., Meyers, M.K., Wallner, E., McGillicuddy, D.J., Carlson, C.A.. "Microbial Dynamics in Cyclonic and Anticyclonic Mode-Water Eddies in the Northwestern Sargasso Sea," Deep-Sea Research II, v.55, 2008, p. 1334.

Goldthwait, S.A. and Steinberg, D.K.. "Elevated biomass of mesozooplankton and enhanced fecal pellet flux in cyclonic and mode-water eddies in the Sargasso Sea," Deep-Sea Research Part II: Topical Studies in Oceanography, v.55, 2008, p. 1360.

Greenan, B.J.W.. "Shear and Richardson number in a mode-water eddy," Deep-Sea Research Part II: Topical Studies in Oceanography, v.55, 2008, p. 1161.

Jenkins, W.J., McGillicuddy, D.J., and Lott III, D.E.. "The Distributions of, and Relationship Between 3 He and Nitrate in Eddies," Deep Sea Research II, v.55, 2008, p. 1389.

Jenkins, W.J., McGillicuddy, D.J., Lott III, D.E.. "The Distributions of, and Relationship Between 3 He and Nitrate in Eddies," Deep-Sea Research II, v.55, 2008, p. 1389.

Ledwell, J.R., McGillicuddy, D.J., and Anderson, L.A.. "Nutrient Flux into an Intense Deep Chlorophyll Layer in a Mode-water Eddy.," Deep Sea Research II, v.55, 2008, p. 1139.

Ledwell, J.R., McGillicuddy, D.J., Anderson, L.A.. "Nutrient Flux into an Intense Deep Chlorophyll Layer in a Mode-water Eddy," Deep-Sea Research II, v.55, 2008, p. 1139.

Li, Q.P. and Hansell, D.A.. "Intercomparison and coupling of MAGIC and LWCC techniques for trace analysis of phosphate in seawater," Analytical Chemica Acta, v.611, 2008, p. 68.

Li, Q.P., Hansell, D.A., McGillicuddy, D.J., Bates, N.R., Johnson, R.J.. "Tracer-based assessment of the origin and biogeochemical transformation of a cyclonic eddy in the Sargasso Sea," Journal of Geophysical Research, v.113, 2008, p. 10006.

Li, Q.P., Hansell, D.A., Zhang, J.-Z.. "Underway monitoring of nanomolar nitrate plus nitrite and phosphate in oligotrophic seawater," Limnology and Oceanography: Methods, v.6, 2008, p. 319.

Li, Q.P., Zhang, J.-Z., Millero, F.J., Hansell, D.A.. "Continuous colorimetric determination of trace ammonium in seawater with a long-path liquid waveguide capillary cell," Marine Chemistry, v.96, 2005, p. 73.

McGillicuddy, D.J., et. al.. "Eddy/Wind Interactions Stimulate Extraordinary Mid-Ocean Plankton Blooms," Science, v.316, 2007, p. 1021.

McGillicuddy, D.J., Ledwell, J.R., and Anderson, L.A.. "Response to Comment on "Eddy/Wind Interactions Stimulate Extraordinary Mid-Ocean Plankton Bloom".," Science, v.320, 2008.

McGillicuddy, D.J., Ledwell, J.R., Anderson, L.A.. "Response to Comment on "Eddy/Wind Interactions Stimulate Extraordinary Mid-Ocean Plankton Bloom"," Science, v.320, 2008.

McGillicuddy, et. al.. "Eddy/Wind Interactions Stimulate Extraordinary Mid-Ocean Plankton Blooms.," Science, v.316, 2007, p. 1021.

Mourino B., and McGillicuddy, D.J.. "Mesoscale Variability in the Metabolic Balance of the Sargasso Sea," Limnology & Oceanography, v.51, 2006, p. 2675.



[ table of contents | back to top ]

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.



[ table of contents | back to top ]