Project: Southern Ocean Gas Exchange Experiment

Acronym/Short Name:SO_GasEx
Project Duration:2008-02 - 2008-04
Geolocation:Southwest Atlantic sector of the Southern Ocean (nominally at 50°S, 40°W, near South Georgia Island)

Description

The Southern Ocean Gas Exchange Experiment (SO-GasEx; also known as GasEx III) took place in the Southwest Atlantic sector of the Southern Ocean (nominally at 50°S, 40°W, near South Georgia Island) in austral fall of 2008 (February 29-April 12, 2008) on the NOAA ship Ronald H. Brown. SO-GasEX is funded by NOAA, NSF and NASA.

The research objectives for Southern Ocean GasEx are to answer the following questions:

  • What are the gas transfer velocities at high winds?
  • What is the effect of fetch on the gas transfer?
  • How do other non-direct wind effects influence gas transfer?
  • How do changing pCO2 and DMS levels affect the air-sea CO2 and DMS flux, respectively in the same locale?
  • Are there better predictors of gas exchange in the Southern Ocean other than wind?
  • What is the near surface horizontal and vertical variability in turbulence, pCO2, and other relevant biochemical and physical parameters?
  • How do biological processes influence pCO2 and gas exchange?
  • Do the different disparate estimates of fluxes agree, and if not why?
  • With the results from Southern Ocean GasEx, can we reconcile the current discrepancy between model based CO2 flux estimates and observation based estimates?

 

Related files

SO-GasEx cruise report
SO-GasEx Science Plan
SO-GasEx Implementation Plan

The SO-GasEx cruise report and Science and Implementation plans, may also be available at the SO-GasEx science Web page.

DatasetLatest Version DateCurrent State
Discrete O2 Argon (Ar) sampling log from NOAA Ship Ronald H. Brown cruise RB-08-02 in the Southwest Atlantic sector of the Southern Ocean near South Georgia Island in 2008 (SO_GasEx project)2013-10-17Preliminary and in progress
Diurnal Gross Oxygen Production (GOP) from NOAA Ship Ronald H. Brown cruise RB-08-02 in the Southwest Atlantic sector of the Southern Ocean near South Georgia Island in 2008 (SO_GasEx project)2013-10-14Preliminary and in progress
Underway O2 Argon (Ar) sampling log from NOAA Ship Ronald H. Brown cruise RB-08-02 in the Southwest Atlantic sector of the Southern Ocean near South Georgia Island in 2008 (SO_GasEx project)2013-10-14Preliminary and in progress
Discrete O2 Argon (Ar) from NOAA Ship Ronald H. Brown cruise RB-08-02 in the Southwest Atlantic sector of the Southern Ocean near South Georgia Island in 2008 (SO_GasEx project)2013-10-14Preliminary and in progress
Underway O2 Argon (Ar) from NOAA Ship Ronald H. Brown cruise RB-08-02 in the Southwest Atlantic sector of the Southern Ocean near South Georgia Island in 2008 (SO_GasEx project)2013-10-14Preliminary and in progress
Met/Flux data - Revision 2 from NOAA Ship Ronald H. Brown cruise RB-08-02 in the Southwest Atlantic sector of the Southern Ocean near South Georgia Island in 2008 (SO_GasEx project)2011-03-11Final no updates expected
CTD salinometer calibrations from NOAA Ship Ronald H. Brown cruise RB-08-02 in the Southwest Atlantic sector of the Southern Ocean near South Georgia Island in 2008 (SO_GasEx project)2010-07-26Final no updates expected
Hourly means for DMS flux, transfer velocity, and associated variables from NOAA Ship Ronald H. Browncruise RB-08-02 in the Southwest Atlantic sector of the Southern Ocean near South Georgia Island in 2008 (SO_GasEx project)2010-03-16Final no updates expected
Discrete analysis of new production - Nitrogen isotope N15 from NOAA Ship Ronald H. Brown RB-08-02 in the Southwest Atlantic sector of the Southern Ocean near South Georgia Island in 2008 (SO_GasEx project)2010-02-17Final no updates expected
Surface underway pCO2 from NOAA Ship Ronald H. Brown cruise RB-08-02 in the Southwest Atlantic sector of the Southern Ocean near South Georgia Island in 2008 (SO_GasEx project)2010-02-17Final no updates expected
POC from NOAA Ship Ronald H. Brown cruise RB-08-02 in the Southwest Atlantic sector of the Southern Ocean near South Georgia Island in 2008 (SO_GasEx project)2010-02-17Final no updates expected
Nutrients from Niskin bottles from NOAA Ship Ronald H. Brown cruise RB-08-02 in the Southwest Atlantic sector of the Southern Ocean near South Georgia Island in 2008 (SO_GasEx project)2010-02-16Final no updates expected
Sample bottle measurements from CTD casts from NOAA Ship Ronald H. Brown cruise RB-08-02 in the Southwest Atlantic sector of the Southern Ocean near South Georgia Island in 2008 (SO_GasEx project)2010-02-16Final no updates expected
Cruise track from NOAA Ship Ronald H. Brown cruise RB-08-02 in the Southwest Atlantic sector of the Southern Ocean near South Georgia Island in 2008 (SO_GasEx project)2010-02-16Final no updates expected
Oxygen Data from Niskin Rosette samples from NOAA Ship Ronald H. Brown cruise RB-08-02 in the Southwest Atlantic sector of the Southern Ocean near South Georgia Island in 2008 (SO_GasEx project)2010-02-16Final no updates expected
Sulphur Hexafluoride (SF6) from Station/Niskin bottle sort from NOAA Ship Ronald H. Brown RB-08-02 in the Southwest Atlantic sector of the Southern Ocean near South Georgia Island in 2008 (SO_GasEx project)2010-02-16Final no updates expected
Final DIC and Total Alkalinity (TA) from NOAA Ship Ronald H. Brown cruise RB-08-02 in the Southwest Atlantic sector of the Southern OceanTo near South Georgia Island in 2008 (SO_GasEx project)2010-02-16Final no updates expected
One decibar-averaged CTD profiles from NOAA Ship Ronald H. Brown cruise RB-08-02 in the Southwest Atlantic sector of the Southern Ocean near South Georgia Island in 2008 (SO_GasEx project)2010-02-16Final no updates expected
CDOM Absorption Spectra from CTD casts from NOAA Ship Ronald H. Brown cruise RB-08-02 in the Southwest Atlantic sector of the Southern Ocean near South Georgia Island in 2008 (SO_GasEx project)2010-01-13Final no updates expected
MAPCO2 buoy data deployed on NOAA Ship Ronald H. Brown cruise RB-08-02 in the Southwest Atlantic sector of the Southern Ocean near South Georgia Island in 2008 (SO_GasEx project)2010-01-07Final no updates expected
Temperature logger data from MAPCO2 buoy deployed on NOAA Ship Ronald H. Brown cruise RB-08-02 in the Southwest Atlantic sector of the Southern Ocean near South Georgia Island in 2008 (SO_GasEx project)2010-01-07Final no updates expected
SAMI-CO2 data from MAPCO2 buoy deployed on NOAA Ship Ronald H. Brown cruise RB-08-02 in the Southwest Atlantic sector of the Southern Ocean near South Georgia Island in 2008 (SO_GasEx project)2010-01-06Final no updates expected
Scientific sampling event log from NOAA Ship Ronald H. Brown cruise RB-08-02 in the Southwest Atlantic sector of the Southern Ocean near South Georgia Island in 2008 (SO_GasEx project)2010-01-05Final no updates expected
Underway pCO2 from GO System from NOAA Ship Ronald H. Brown cruise RB-08-02 in the Southwest Atlantic sector of the Southern Ocean near South Georgia Island in 2008 (SO_GasEx project)2009-12-28Final no updates expected
Underway Sulphur Hexafluoride (SF6) - Patch 1 from NOAA Ship Ronald H. Brown cruise RB-08-02 in the Southwest Atlantic sector of the Southern Ocean near South Georgia Island in 2008 (SO_GasEx project)2009-09-24Final no updates expected
Underway Sulphur Hexafluoride (SF6) - Patch 2 from NOAA Ship Ronald H. Brown RB-08-02 in the Southwest Atlantic sector of the Southern Ocean near South Georgia Island in 2008 (SO_GasEx project)2009-09-24Final no updates expected
Narrow band shipboard ADCP from NOAA Ship Ronald H. Brown cruise RB-08-02 in the Southwest Atlantic sector of the Southern Ocean near South Georgia Island in 2008 (SO_GasEx project)2009-09-10Final no updates expected
pCO2 from Niskin bottle samples from NOAA Ship Ronald H. Brown cruise RB-08-02 in the Southwest Atlantic sector of the Southern Ocean near South Georgia Island in 2008 (SO_GasEx project)2009-09-09Final no updates expected
Broad band shipboard ADCP from NOAA Ship Ronald H. Brown cruise RB-08-02 in the Southwest Atlantic sector of the Southern Ocean near South Georgia Island in 2008 (SO_GasEx project)2009-09-09Final no updates expected
Cruise data inventory from NOAA Ship Ronald H. Brown cruise RB-08-02 in the Southwest Atlantic sector of the Southern Ocean near South Georgia Island in 2008 (SO_GasEx project)2009-07-09Under revision
Oxygen from underway system from NOAA Ship Ronald H. Brown cruise RB-08-02 in the Southwest Atlantic sector of the Southern Ocean near South Georgia Island in 2008 (SO_GasEx project)2009-06-19Final no updates expected
CTD station locations from NOAA Ship Ronald H. Brown cruise RB-08-02 in the Southwest Atlantic sector of the Southern Ocean near South Georgia Island in 2008 (SO_GasEx project)2009-05-27Final no updates expected
CTD specific events from NOAA Ship Ronald H. Brown cruise RB-08-02 in the Southwest Atlantic sector of the Southern Ocean near South Georgia Island in 2008 (SO_GasEx project)2009-05-27Final no updates expected
Met/Flux data - Revision 1 - from NOAA Ship Ronald H. Brown cruise RB-08-02 in the Southwest Atlantic sector of the Southern Ocean near South Georgia Island in 2008 (SO_GasEx project)2009-02-18Preliminary and in progress
Gas transfer velocities (QuikSCAT normalized radar backscatter) from NOAA Ship Ronald H. Brown cruise RB-08-02 in the Southwest Atlantic sector of the Southern Ocean near South Georgia Island in 2008 (SO_GasEx project)2008-12-05Final no updates expected

Project Home Page

People

Lead Principal Investigator: David T. Ho
University of Hawaiʻi at Mānoa (SOEST)

Co-Principal Investigator: Christopher L. Sabine
National Oceanic and Atmospheric Administration (NOAA-PMEL)

Contact: Burke Hales
Oregon State University (OSU-CEOAS)

BCO-DMO Data Manager: Stephen R. Gegg
Woods Hole Oceanographic Institution (WHOI BCO-DMO)

Programs

Ocean Carbon and Biogeochemistry [OCB]

United States Surface Ocean Lower Atmosphere Study [U.S. SOLAS]

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Funded by the U.S. National Science Foundation