Dataset: Met/Flux Revision 2

Name: 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)
Published: 2011-03-11
Keywords: oceans

Cite This Dataset

Spatial Extent: N:-36.11217 E:-41.30624 S:-51.48799 W:-53.75615

Project:

Southern Ocean Gas Exchange Experiment (SO_GasEx)

Program:

Ocean Carbon and Biogeochemistry (OCB)

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

Principal Investigator:

James B. Edson (University of Connecticut, UConn)

Contact:

Burke Hales (Oregon State University, OSU-CEOAS)

BCO-DMO Data Manager:

Stephen R. Gegg (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

11 March 2011

Version Date:

2011-03-11

Validated:

Yes

Current State:

Final no updates expected

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)

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Description

SO-GasEx Met/Flux data - Revision 2 (See MetFlux Revision 1, v.18 February 2009 for earlier data)

The values represent 10 minute means and include interpolated data to fill in data gaps.
There is a period at the end of the cruise with no radiative flux data.
The missing data are flagged with -999.

In all cases, the fluxes use the convention that positive implies upwards.
The fluxes and wind speeds are computed relative to fixed earth,
i.e., they have not been corrected for currents.

Updates in Revision 2:
- Additional decimal point included for wind speeds and temperatures.

- Radiative flux data and improved SST data for transit back to Uruguay now included.

- CO2 fluxes are now included using the COAREG algorithm. The algorithm has been tuned to

best match the direct covariances fluxes measured duirng GasEx 98 and SO Gasex.

- Also included are the delta CO2 measurement provided by NOAA/AOML and the Schmidt number
and solubility provided by the COAREG algorithm. The Schmidt number is used to compute
K660 = wCO2/delCO2*sqrt(ScCO2/660)

- The solubility is included for those who want to convert delCO2 units to uatm.

Additional Parameters in Revision 2:

- wCO2 (umol/m2/s):               CO2 flux computed from COAREG (umol=micromole)
- delCO2 (mmol/m3):              delta CO2 with corrections applied for solubility
- K660 (cm/hr):                       Transfer velocity for CO2 from COAREG adjusted to Sc=660
- Solubility (mole/m^3/atm):    Solubility of CO2 at sea surface
- ScCO2:                Schmidt number of CO2 under ambient conditions

Methods & Sampling

In all cases, the fluxes use the convention that positive implies upwards.
The fluxes and wind speeds are computed relative to fixed earth,
i.e., they have not been corrected for currents.

Data Processing Description

BCO-DMO Processing Notes
- Generated from original file GASEX08.r2

BCO-DMO Edits
- Original space delimited data file reformatted to BCO-DMO convention and output as csv file

- Minor edits to parameter names to conform to BCO-DMO/JGOFS object standards

- No changes to the data

Data Files

File
MetFlux_Revision2.csv (Comma Separated Values (.csv), 806.55 KB) MD5:e310db8612fd245ed7b86920e76b92c4 Primary data file for dataset ID 3448

More Information about this dataset

Funding Sources

Funding Source	Award Number
National Aeronautics & Space Administration	unknown SO_GasEx NASA
National Oceanic and Atmospheric Administration	unknown SO_GasEx NOAA
National Science Foundation	unknown SO_GasEx NSF

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
RB-08-02	RB0802 RHB_SO-GasEx	2008-02-29	NOAA Ship Ronald H. Brown	Christopher L. Sabine (Chief Scientist) David T. Ho (Co-Chief Scientist)	data info

Instruments

None available yet

Parameters

Date and time formats are described in python strftime() syntax.

Supplied Name	Supplied description	Supplied Units	Standard Name
Yday	Yearday 2008 = 1.5 on January 1 at noon (UTC)	dd.xxxxx	no_bcodmo_term
lon	Latitude from ship log (South is negative)	decimal degrees	lon
lat	Longitude from ship log (West is negative)	decimal degrees	lat
U10	Wind speed 10 m above surface from sonics	m/s	no_bcodmo_term
U10N	Wind speed 10 m above surface adjusted to neutral conditions	m/s	no_bcodmo_term
WDir	Wind Direction from (meteorological convention)	deg	no_bcodmo_term
Tsea	Sea Surface Temperature from sea snake	degrees celcius	no_bcodmo_term
T10	Air Temperature 10 m above surface from Vaisala PTU	degrees celcius	no_bcodmo_term
RH10	Relative Humidity 10 m above surface from Vaisala PTU	percentage	no_bcodmo_term
Pair	Atmospheric Pressure from Vaisala PTU	mb	no_bcodmo_term
SolarUp	Upwelling Solar Radiation using Payne (1972) albedo formulation	W/m2	no_bcodmo_term
SolarDn	Downwelling Solar Radiation from Eppley pyranometer	W/m2	no_bcodmo_term
IRUp	Upwelling Infrared Radiation using Tsea	W/m2	no_bcodmo_term
IRDn	Downwelling Infrared Radiation from Eppley purgeometer	W/m2	no_bcodmo_term
StressBK	Wind Stress computed from TOGA COARE 3.0 bulk algorithm	N/m2	no_bcodmo_term
ustBK	Friction Velocity computed from TOGA COARE 3.0 bulk algorithm	m/s	no_bcodmo_term
SHFBK	Sensible Heat Flux computed from TC 3.0 bulk algorithm	W/m2	no_bcodmo_term
LHFBK	Latent Heat Flux computed from TC 3.0 bulk algorithm	W/m2	no_bcodmo_term
Rain	Accumulated Rainfall from optical rain gauge	cm	no_bcodmo_term
RainRate	Rainfall Rate from optical rain gauge	cm/hr	no_bcodmo_term
wCO2BK	CO2 flux computed from COAREG (umol=micromole)	umol/m2/s	no_bcodmo_term
delCO2	delta CO2 with corrections applied for solubility	mmol/m3	no_bcodmo_term
K660	Transfer velocity for CO2 from COAREG adjusted to Sc=660	cm/hr	no_bcodmo_term
Solubility	Solubility of CO2 at sea surface	mole/m^3/atm	no_bcodmo_term
ScCO2	Schmidt number of CO2 under ambient conditions	nd	no_bcodmo_term

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Database

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Dataset: Met/Flux Revision 2