Air temperature and barometric pressure from autonomous buoys from ARSV Laurence M. Gould LMG0106 in the Southern Ocean, Aug-Nov, 2001 (SOGLOBEC project, Sea Ice Microbes project)

Website: https://www.bco-dmo.org/dataset/3118
Version: 2009-05-07

Project
» U.S. GLOBEC Southern Ocean (SOGLOBEC)
» GLOBEC: Sea Ice Microbial Communities (Sea Ice Microbes)

Programs
» U.S. GLOBal ocean ECosystems dynamics (U.S. GLOBEC)
» U.S. GLOBal ocean ECosystems dynamics (U.S. GLOBEC)
ContributorsAffiliationRole
Costa, Daniel P.University of California-Santa Cruz (UC Santa Cruz)Principal Investigator
Fritsen, Chris H.Desert Research Institute (DRI)Co-Principal Investigator
Copley, NancyWoods Hole Oceanographic Institution (WHOI BCO-DMO)BCO-DMO Data Manager


Dataset Description

Related datasets:
buoy_position Autonomous buoy position data, Aug. - Nov. 2001
buoy_therm Thermistor data at 10 cm intervals in air, ice, water from autonomous buoys, Aug. - Nov. 2001
buoy_radm Radiometer data from autonomous buoy 07949, Aug. - Nov. 2001


Acquisition Description

During the July-September 2001 Southern Globec cruises of the Palmer and Gould we installed four buoys. Two of the buoys (07413, 07440) were standard off-the-shelf Met-Ocean Ice buoys (see above photograph). These buoys measured barometric pressure, air temperature, and GPS position. The data were transmitted via ARGOS. A radar reflector was mounted on a wooden 4 x 4 to help find the site if there was an opportunity to return, however the reflector return was difficult to discern among all the backscatter clutter caused by deformed ice and icebergs.

The other two buoys (07949, 07950) were custom made CRREL ice mass balance buoys (photo on right). These buoys reported barometric pressure, Argos position, and air temperature. In addition they had a thermistor string that measured a vertical profile of temperature, at 10 cm spacing, from the air, through the snow and ice, and into the upper ocean. There were acoustic sensors measuring the positions of the snow surface and ice bottom. A fluorometer was mounted under the ice. One of the buoys (07949) had three spectroradiometers; one mounted about the ice, one mounted directly below the ice, and one a few meters deep in the upper ocean. Results from all buoys are compared.

Tracks from all 2001 buoys:

buoy tracks


[ table of contents | back to top ]

Parameters

ParameterDescriptionUnits
yrday_gmtGMT day and decimal time, as 326.5 for the 326th day of the year, or November 22 at 1200 hours (noon)
date_gmtgmt month, day and year, usually as a text string, e.g. feb10_1995.
yearyear, reported as YYYY, e.g. 1995
month_gmtmonth of year, GMT time , i.e. 01-12
day_gmtday, GMT time e.g. 22.
time_gmttime of day, reported in GMT time, 24 hour clock
buoy_ididentification number of buoy
temp_airair temperature degrees Celsius
press_barbarometric pressure millibars


[ table of contents | back to top ]

Instruments

Dataset-specific Instrument Name
Drifter Buoy
Generic Instrument Name
Drifter Buoy
Dataset-specific Description
buoy installed in drifting ice
Generic Instrument Description
Drifter buoy to include the Beardsley Drifter. Generic drifter buoys may be surface or sub-surface buoys that move with the current. They have a variety of instruments attached, providing a platform that allows for the measurement of surface drifts, air pressure and other variables. The Beardsley Drifters are near-surface satellite-tracked drifters used for observations of circulation patterns. They are WOCE-style drifters featuring holey sock drogues. Each drifter has a small (~ 30 cm diameter) surface float with ARGOS transmitter and batteries tethered to a holey sock drogue centered at 15 m below the surface. The drogue, about 10 m tall and 1 m in diameter, is designed to "lock" itself to the water so that the surface float follows the mean water motion at 15 m depth with very little slippage even in high winds. Thus measuring the drifter's position as a function of time provides a Lagrangian measurement of the 15-m ocean current. (http://globec.whoi.edu/jg/info/globec/soglobec/drifters_argos%7Bdir=glob...?) WOCE-drifters: http://woce.nodc.noaa.gov/wdiu/diu_summaries/svp/index.htm


[ table of contents | back to top ]

Deployments

LMG0106

Website
Platform
ARSV Laurence M. Gould
Report
Start Date
2001-07-21
End Date
2001-09-01


[ table of contents | back to top ]

Project Information

U.S. GLOBEC Southern Ocean (SOGLOBEC)


Coverage: Southern Ocean


The fundamental objectives of United States Global Ocean Ecosystems Dynamics (U.S. GLOBEC) Program are dependent upon the cooperation of scientists from several disciplines. Physicists, biologists, and chemists must make use of data collected during U.S. GLOBEC field programs to further our understanding of the interplay of physics, biology, and chemistry. Our objectives require quantitative analysis of interdisciplinary data sets and, therefore, data must be exchanged between researchers. To extract the full scientific value, data must be made available to the scientific community on a timely basis.

GLOBEC: Sea Ice Microbial Communities (Sea Ice Microbes)

Coverage: Southern Ocean


The U.S. Global Ocean Ecosystems Dynamics (U.S. GLOBEC) program has the goal of understanding and ultimately predicting how populations of marine animal species respond to natural and anthropogenic changes in climate. Research in the Southern Ocean (SO) indicates strong coupling between climatic processes and ecosystem dynamics via the annual formation and destruction of sea ice. The Southern Ocean GLOBEC Program (SO GLOBEC) will investigate the dynamic relationship between physical processes and ecosystem responses through identification of critical parameters that affect the distribution, abundance and population dynamics of target species. The overall goals of the SO GLOBEC program are to elucidate shelf circulation processes and their effect on sea ice formation and krill distribution, and to examine the factors which govern krill survivorship and availability to higher trophic levels, including penguins, seals and whales. The focus of the U.S. contribution to the international SO GLOBEC program will be on winter processes. This component will focus on the distribution and activities of sea ice microbial communities. This will be accomplished using an integrated combination of sampling (vertical profiles, horizontal surveys, and under-ice surveys) and observational protocols. Experiments will be designed to estimate microbial activity within the sea ice and at the ice-seawater interface. The research will be coordinated with components studying the water column productivity and the sea ice habitat. The result of the integrated SO GLOBEC program will be to improve the predictability of living marine resources, especially with respect to local and global climatic shifts.


[ table of contents | back to top ]

Program Information

U.S. GLOBal ocean ECosystems dynamics (U.S. GLOBEC)


Coverage: Global


U.S. GLOBEC (GLOBal ocean ECosystems dynamics) is a research program organized by oceanographers and fisheries scientists to address the question of how global climate change may affect the abundance and production of animals in the sea. The U.S. GLOBEC Program currently had major research efforts underway in the Georges Bank / Northwest Atlantic Region, and the Northeast Pacific (with components in the California Current and in the Coastal Gulf of Alaska). U.S. GLOBEC was a major contributor to International GLOBEC efforts in the Southern Ocean and Western Antarctic Peninsula (WAP).

U.S. GLOBal ocean ECosystems dynamics (U.S. GLOBEC)


Coverage: Global


U.S. GLOBEC (GLOBal ocean ECosystems dynamics) is a research program organized by oceanographers and fisheries scientists to address the question of how global climate change may affect the abundance and production of animals in the sea. The U.S. GLOBEC Program currently had major research efforts underway in the Georges Bank / Northwest Atlantic Region, and the Northeast Pacific (with components in the California Current and in the Coastal Gulf of Alaska). U.S. GLOBEC was a major contributor to International GLOBEC efforts in the Southern Ocean and Western Antarctic Peninsula (WAP).


[ table of contents | back to top ]

Funding

Funding SourceAward
NSF Antarctic Sciences (NSF ANT)

[ table of contents | back to top ]