GCMD

Sea Ice Mass Balance in the Antarctic - Ice Geophysics

Federal Geographic Data Committee (FGDC) Metadata:

Identification_Information
Data_Quality_Information
Spatial_Reference_Information
Distribution_Information
Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: Unknown
Publication_Date: Unknown
Title: Sea Ice Mass Balance in the Antarctic - Ice Geophysics

Description:

Abstract:: The data set is comprised of spatial surveys of snow and ice physical properties conducted at the one floe occupied for twenty-seven days in the Bellingshausen Sea, Ice Station Belgica. The survey patterns yielded a two-dimensional representation of snow and ice morphology using main and subsidiary survey lines. The surveys consist of horizontal transects where snow depth, ice thickness, ice freeboard, and the areal extent and thickness of the flooded layer was measured. The presence of ice layers or slush in the snow cover was noted, along with ice thickness distributions for each survey site. Line measurements were repeated three to four times during the thirty day period to determine progressive changes in snow and ice properties over time. A detailed snow and ice characterization was performed at selected locations along the survey lines as well as the installation of temporary ice thickness gauges, and an electrical resistivity array on the floe. These profiled flooding events and daily ice thickness changes over the drift station period. Snow depth, density, free water content, and stratigraphy, were measured periodically. The amounts and location of frazil and congelation from ice cores was determined from thin sections photographed in both transmitted natural light and between crossed polarizers. Also, oxygen isotope analysis (18O) samples were obtained to aid in differentiating between snow-ice and frazil. On short-term stations of a few hours, a smaller precise survey pattern was measured, varying with size and shape of the individual floe and ice access from the vessel. The data was used to develop a geophysical assessment of the ice cover and also, drifting and precipitating snow measurements, and Antarctic sea ice concentrations for Year 2007 were taken, contained among other documents. Ice cores that were taken at the beginning and end of the station at each intensive site was used to determine vertical profiles of ice temperature, salinity, brine volume, density, and crystallography integrated over the period of the drift and provided rare time series data and changes with properties over time at the main station.
Purpose:: Not Available
Supplemental_Information:: REFERENCE: Weissling, B., Lewis, M.J., Ackley, S.F. May 2011 Intercomparisons of Antarctic sea ice properties from ship observations, active and passive microwave satellite observations in the Bellingshausen Sea Deep Sea Research II 58 9-10 1112-1124 10.1016/j.dsr2.2010.10.032 http://www.sciencedirect.com/science/article/pii/S0967064510003188

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20070901
Ending_Date: 20071031

Currentness_Reference:Unknown

Status:

Progress: In Work
Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Description_of_Geographic_Extent:

Bounding_Coordinates:

West_Bounding_Coordinate: -94.85
East_Bounding_Coordinate: -64.05
North_Bounding_Coordinate: -61.85
South_Bounding_Coordinate: -70.683

Keywords:

Theme:

Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS
Theme_Keyword_Thesaurus: GCMD PLATFORM
Theme_Keyword_Thesaurus: GCMD INSTRUMENT
Theme_Keyword_Thesaurus: PROJECT
Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY
Theme_Keyword_Thesaurus: DATA SET LANGUAGE
Theme_Keyword: EARTH SCIENCE > CRYOSPHERE > SNOW/ICE > ICE DEPTH/THICKNESS
Theme_Keyword: EARTH SCIENCE > CRYOSPHERE > SNOW/ICE > ICE GROWTH/MELT
Theme_Keyword: EARTH SCIENCE > CRYOSPHERE > SNOW/ICE > SNOW COVER
Theme_Keyword: EARTH SCIENCE > CRYOSPHERE > SNOW/ICE > SNOW DEPTH
Theme_Keyword: EARTH SCIENCE > OCEANS > MARINE GEOPHYSICS
Theme_Keyword: EARTH SCIENCE > CRYOSPHERE > SEA ICE > SNOW DEPTH
Theme_Keyword: SV > SNOW VEHICLE
Theme_Keyword: GPS > GLOBAL POSITIONING SYSTEM SATELLITES
Theme_Keyword: R/V NBP > R/V NATHANIEL B. PALMER
Theme_Keyword: ICE AUGERS
Theme_Keyword: STD > SALINITY, TEMPERATURE, DEPTH
Theme_Keyword: SURVEYING TOOLS
Theme_Keyword: AUTOANALYZER
Theme_Keyword: STC > SALINITY, TEMPERATURE , CONDUCTIVITY
Theme_Keyword: ELECTROMAGNETIC GEOPROFILER
Theme_Keyword: NSF/OPP > OFFICE OF POLAR PROGRAMS, NATIONAL SCIENCE FOUNDATION
Theme_Keyword: IPY > INTERNATIONAL POLAR YEAR
Theme_Keyword: ANTARCTIC SEA ICE > ANTARCTIC SEA ICE IN INTERNATIONAL POLAR YEAR
Theme_Keyword: SIMBA > SEA ICE MASS BALANCE IN THE ANTARCTIC
Theme_Keyword: SIMBA DRIFT STATION > SEA ICE MASS BALANCE IN THE ANTARCTIC-SIMBA DRIFT STATION
Theme_Keyword: CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
Theme_Keyword: ENVIRONMENT
Theme_Keyword: OCEANS
Theme_Keyword: ENGLISH

Place:

Place_Keyword_Thesaurus: GCMD
Place_Keyword: CONTINENT > ANTARCTICA
Place_Keyword: GEOGRAPHIC REGION > POLAR
Place_Keyword: OCEAN > SOUTHERN OCEAN > BELLINGSHAUSEN SEA

Access_Constraints: None

Use_Constraints:

None

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: STEPHEN ACKLEY

Contact_Position: INVESTIGATOR

Contact_Address:

Address_Type: Mailing and Physical Address
Address: 118 W Castle Ln
City: San Antonio
State_or_Province: Texas
Postal_Code: 78213
Country: USA

Contact_Voice_Telephone: +1 1 210 341 6556

Contact_Electronic_Mail_Address: sackley@pol.net, Stephen.ackley@utsa.edu

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:: Not Available

Logical_Consistency_Report:

Not Available

Completeness_Report:

Not Available

Lineage:

Process_Step:

Process_Description:: Not Available
Process_Date: Unknown

Spatial_Reference_Information:

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: NSIDC > National Snow and Ice Data Center
Contact_Person: STEPHEN NSIDC ACKLEY USER SERVICES

Contact_Position: DATA CENTER CONTACT

Contact_Address:

Address_Type: Mailing and Physical Address
Address: 118 W Castle Ln
City: San Antonio
State_or_Province: Texas
Postal_Code: 78213
Country: USA

Contact_Address:

Address_Type: Mailing and Physical Address
Address: National Snow and Ice Data Center
Address: CIRES, 449 UCB
Address: University of Colorado
City: Boulder
State_or_Province: CO
Postal_Code: 80309-0449
Country: USA

Contact_Voice_Telephone: +1 1 210 341 6556

Contact_Voice_Telephone: +1 (303) 492-6199

Contact_Facsimile_Telephone: +1 (303) 492-2468

Contact_Electronic_Mail_Address: sackley@pol.net, Stephen.ackley@utsa.edu

Contact_Electronic_Mail_Address: nsidc@nsidc.org

Resource_Description: SIMBA_Ice_Geophysics

Distribution_Liability:

Not Available

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: Not Available

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:: http://nsidc.org

Access_Instructions:

DATA CENTER URL

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:: http://utsa.edu/lrsg/

Access_Instructions:

Fees: Not Available

Metadata_Reference_Information:

Metadata_Date: 20120207

Metadata_Review_Date: 20120420

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: JESSICA JIMENEZ

Contact_Position: DIF AUTHOR

Contact_Address:

Address_Type: Mailing and Physical Address
Address: 3407 Ivy Ave
City: Hidalgo
State_or_Province: Texas
Postal_Code: 78557
Country: USA

Contact_Voice_Telephone: 956-451-9288

Contact_Electronic_Mail_Address: Jessica.jimenez_eng@yahoo.com

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time