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)

Website: https://www.bco-dmo.org/dataset/2983
Version: 09 July 2009
Version Date: 2009-07-09

Project
» Southern Ocean Gas Exchange Experiment (SO_GasEx)

Programs
» Ocean Carbon and Biogeochemistry (OCB)
» United States Surface Ocean Lower Atmosphere Study (U.S. SOLAS)
ContributorsAffiliationRole
Hales, BurkeOregon State University (OSU-CEOAS)Principal Investigator
Gegg, Stephen R.Woods Hole Oceanographic Institution (WHOI)BCO-DMO Data Manager


Dataset Description

SO-GasEx, RB-08-02 Cruise Data Inventory
Status of expected SO-GasEx data contributions


Methods & Sampling

Inventory

 PI:              Burke Hales (project lead contact)
 of:              Oregon State University - College of Oceanic and Atmospheric Sciences (OSU-COAS)
 dataset:         Inventory of expected results from cruise
 dates:           29 Feb 2008 to 12 April 2008
 location:        50°S, 40°W
 project/cruise:  SO-GasEx/RB-08-02
 platform:        NOAA Ship Ronald H. Brown
  
 The Cruise INVENTORY offers a dynamic view of the data status for each cruise.
 If you are a participating PI and believe the information to be inaccurate,
 PLEASE contact the office so we may update our information.

 Thank you, Cyndy Chandler, (BCO-DMO, WHOI)

 Status of expected SO-GasEx data contributions: 
   Investigators contribute results to the SO-GasEx project office.
   (Contributed=p indicates preliminary data)
   Following QA, final data are added to the BCO-DMO data system.
   When complete, processing status column links to data.
   A parameter value of n indicates 'no' and y indicates 'yes'.

 The original data inventory report from Burke Hales is available as a PDF file


 Parameter          Description                               Units


Niskin flag indicating Niskin data y | n Operation_Type general category of measurement text string Measurement type of measurement text string PI_name name of principal investigator text string co-PI_name name of co-principal investigator text string (where > 2 contributers, only first two listed) Collection data collection success flag 1 | 2 | 3 1 = high success/data currently available 2 = data not yet available, but expected 3 = no to little data expected Contributed flag - has data been contributed y | n | p p = preliminary QA flag - is data final y | n On_System flag - is data in database y | n | L | R y = in OCB database n = not available yet L = link to local resource R = link to remote resource Meta Metadata reported yes | no If "yes", linked to MDR file Access data availability flag O | R O = open access R = restricted access Status_or_Link comments on status or link to data text string nd indicates missing or no data



Data Processing Description

Generated by BCO-DMO staff from meta data and meta data reports (MDR's)
submitted by Burke Hales


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Parameters

ParameterDescriptionUnits
Data_MeasurementText description of type of data or measurement(s) text
PI_namename of principal investigator text
coPI_namename of co-principal investigator text
Contributedflag indicating if data have been contributed; y=yes, n=no and p=preliminary or partial dataset text
QAQuality flag indicating if quality control has been completed; are data final, yes or no text
On_Systemflag indicating whether data are available online: y = in OCB database; n = not available yet; L = link to local resource; R = link to remote resource text
Status_or_LinkIndication of dataset status; comment or link to data text
MetaFlag indicating metadata have/have not been contributed for these data (Y/N) In some inventories, also links to the metadata file text
NiskinFlag indicating Niskin data (Y/N) text
Operation_TypeGeneral category of data or measurement type text
CollectionData collection success flag 1 = high success/data currently available 2 = data not yet available, but expected 3 = no to little data expected text
AccessData Access Flag O - Open R - Restricted text

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Deployments

RB-08-02

Website
Platform
NOAA Ship Ronald H. Brown
Report
Start Date
2008-02-29
End Date
2008-04-12
Description
The Southern Ocean GasEx experiment was conducted aboard the NOAA ship Ronald H. Brown with 31 scientists representing 22 institutions, companies and government labs. The cruise departed Punta Arenas, Chile on 29 February, 2008 and transited approximately 5 days to the nominal study region at 50°S, 40°W in the Atlantic sector of the Southern Ocean. The scientific work concentrated on quantifying gas transfer velocities using deliberately injected tracers, measuring CO2 and DMS fluxes directly in the marine air boundary layer, and elucidating the physical, chemical, and biological processes controlling air-sea fluxes with measurements in the upper-ocean and marine air. The oceanic studies used a Lagrangian approach to study the evolution of chemical and biological properties over the course of the experiment using shipboard and autonomous drifting instruments. The first tracer patch was created and studied for approximately 6 days before the ship was diverted from the study site, 350 miles to the south, to wait near South Georgia Island for calmer seas. After more than 4 days away, we returned to the study area and managed to find some remnants of the tracer patch. After collecting one final set of water column samples and recovering the two drifting buoys deployed with the patch, we relocated to the northwest, closer to the area where the first patch was started. A second tracer patch was created and studied for approximately 15 days before we had to break off the experiment and transit to Montevideo, Uruguay for the completion of the cruise.


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Project Information

Southern Ocean Gas Exchange Experiment (SO_GasEx)


Coverage: Southwest Atlantic sector of the Southern Ocean (nominally at 50°S, 40°W, near South Georgia Island)


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.



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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.


United States Surface Ocean Lower Atmosphere Study (U.S. SOLAS)


Coverage: Global


The Surface Ocean Lower Atmosphere Study (SOLAS) program is designed to enable researchers from different disciplines to interact and investigate the multitude of processes and interactions between the coupled ocean and atmosphere.

Oceanographers and atmospheric scientists are working together to improve understanding of the fate, transport, and feedbacks of climate relevant compounds, and also weather and hazards that are affected by processes at the surface ocean.

Oceanographers and atmospheric scientists are working together to improve understanding of the fate, transport, and feedbacks of climate relevant compounds.

Physical, chemical, and biological research near the ocean-atmosphere interface must be performed in synergy to extend our current knowledge to adequately understand and forecast changes on short and long time frames and over local and global spatial scales.

The findings obtained from SOLAS are used to improve knowledge at process scale that will lead to better quantification of fluxes of climate relevant compounds such as CO2, sulfur and nitrogen compounds, hydrocarbons and halocarbons, as well as dust, energy and momentum. This activity facilitates a fundamental understanding to assist the societal needs for climate change, environmental health, weather prediction, and national security.

The US SOLAS program is a component of the International SOLAS program where collaborations are forged with investigators around the world to examine SOLAS issues ubiquitous to the world's oceans and atmosphere.

» International SOLAS Web site

Science Implementation Strategy Reports

US-SOLAS (4 MB PDF file)
Other SOLAS reports are available for download from the US SOLAS Web site



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Funding

Funding SourceAward
National Oceanic and Atmospheric Administration (NOAA)
National Aeronautics & Space Administration (NASA)
National Science Foundation (NSF)

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