Table of Contents

• Dataset Description
  • Methods & Sampling
  • Data Processing Description
• Data Files
• Parameters
• Instruments
• Deployments
• Project Information
• Program Information
• Funding

SO-GasEx MAPCO2 Buoy - Temperature Logger data
Temperature logger datasets from 18 temperature loggers deployed on the MAPCO2 buoy

For MAPCO2 Buoy Information See: SO-GasEx cruise report, Section 5.5.1 pgs 30-33

Onset PRO V2 temperature loggers were placed at depths between 5 and 105 m depth
on the MapCO2 buoy. These loggers have an accuracy of 0.1 ± 0.02 °C.

NOAA Buoy Temperature Sensors Summary - Probe Locations

Deployment 1				Deployment 2				Deployment 3		
Depth	Sensor	Comment			Depth	Sensor	Comment			Depth	Sensor	Comment
5	O	SAMI-52			5	O	SAMI-52			5	O	SAMI-52
19	P	SAMI-46			19	P	SAMI-46			19	P	SAMI-46
25	L	Top Drogue		25	L	Top Drogue		25	L	Top Drogue
34	K	Bottom Drogue		34	K	Bottom Drogue		34	K	Bottom Drogue
34.5	Q	SAMI-11			34.5	Q	SAMI-11			34.5	Q	SAMI-11
40.5	J	Top Drogue		40.5	J	Top Drogue		40.5	J	Top Drogue
49.5	I	Bottom Drogue		49.5	I	Bottom Drogue		49.5	I	Bottom Drogue
50	R	SAMI-48			50	R	SAMI-48			50	R	SAMI-48
56	H	Top Drogue		56	F	Top Drogue		56	F	Top Drogue
65	G	Bottom Drogue		65	E	Bottom Drogue		65	E	Bottom Drogue
65.75	F	Top Drogue		65.75	N	Top Cable		65.75	N	Top Cable
74.75	E	Bottom Drogue		74.75	M	Bottom Cable		74.75	M	Bottom Cable
75.25	S	SAMI-16			75.25	S	SAMI-16			75.25	S	SAMI-16
81.25	D	Top Drogue		81.25	B	Top Drogue		81.25	B	Top Drogue
90.25	C	Bottom Drogue		90.25	A	Bottom Drogue		90.25	A	Bottom Drogue
91	B	Top Drogue		96	T	SAMI-15			96	T	SAMI-15
100	A	Bottom Drogue								
105	T	SAMI-15								

For MAPCO2 Buoy Information See: SO-GasEx cruise report, Section 5.5.1 pgs 30-33

BCO-DMO Processing Notes
- Generated from original multi sheet file Temperature Probes.xls

BCO-DMO Edits
- multiple sheet .xls file converted to single .xls file containing all three deployments
- DeploymentId added to each data record as Deployment_1, etc.
- single date/time field converted to separate fields and formatted to BCO-DMO convention
- lat/lon added from SAMI CO2, O2, T data files
- any blank fields changed to 'nd' (no data)
- data parameter names reformatted to BCO-DMO convention and depth added to each

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.

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.

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