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Summary
The data comprise images (encapsulated postscript and PNG formats) showing the integrated solar irradiance exposure of sea ice. The exposure value for ice at a given grid point was calculated by computing the motion trajectory of that patch of ice across the autumn/winter season (1-March to 1-November). Daily motion data were obtained from the National Snow and Ice Data Center ... (http://nsidc.org/data/nsidc-0116.html). The integrated radiation exposure was then calculated using daily estimates of downward solar flux from the NCEP/NCAR reanalyses. The values shown in the images are cumulative photosynthetically active radiation expressed in W-days/m^2.

Please contact the data custodian before using these data.

This work was done as part of ASAC project 2943 (ASAC_2943). See the link below for public details about the project.

Related URL

Link: GET DATA Description: Download point for the data - images and data Link: VIEW PROJECT HOME PAGE Description: Public information for ASAC project 2943 Link: VIEW RELATED INFORMATION Description: Citation reference for this metadata record and dataset

Geographic Coverage Spatial coordinates   

N: -55.0

S: -70.0

E: 150.0

W: 30.0

Temporal Coverage

Start Date: 1979-03-01 Stop Date: 2004-11-01

Location Keywords

OCEAN > SOUTHERN OCEAN GEOGRAPHIC REGION > POLAR

Science Keywords

BIOSPHERE > VEGETATION > CHLOROPHYLL BIOSPHERE > VEGETATION > PHOTOSYNTHETICALLY ACTIVE RADIATION OCEANS > SEA ICE > PACK ICE OCEANS > SEA ICE > SEA ICE CONCENTRATION OCEANS > SEA ICE > SEA ICE MOTION SPECTRAL/ENGINEERING > MICROWAVE > BRIGHTNESS TEMPERATURE SPECTRAL/ENGINEERING > MICROWAVE > MICROWAVE IMAGERY SPECTRAL/ENGINEERING > VISIBLE WAVELENGTHS > VISIBLE RADIANCE SUN-EARTH INTERACTIONS > SOLAR ACTIVITY > SOLAR IRRADIANCE

ISO Topic Category

BIOTA OCEANS GEOSCIENTIFIC INFORMATION

Platform

NIMBUS-7

Instrument

SMMR > Scanning Multichannel Microwave Radiometer SSM/I > Special Sensor Microwave/Imager

Access Constraints
Data are freely available for download from the URL given below.

Use Constraints
Please follow instructions listed in the citation reference provided at the URL below when using these data.

Ancillary Keywords

PAR SEA ICE TIME-INTEGRATED PAR

Data Set Progress

COMPLETE

Data Center

Australian Antarctic Data Centre, Australia Data Center URL: http://data.aad.gov.au Data Center Personnel Name: DATA OFFICER AADC Phone: +61 3 6232 3244 Fax: +61 3 6232 3351 Email: metadata at aad.gov.au Contact Address: Australian Antarctic Division 203 Channel Highway City: Kingston Province or State: Tasmania Postal Code: 7050 Country: Australia

Distribution

Distribution Media: HTTP Distribution Size: 22 MB Distribution Format: images Fees: free

Personnel

BEN RAYMOND Role: INVESTIGATOR Role: TECHNICAL CONTACT Role: DIF AUTHOR Phone: +61 3 6232 3336 Fax: +61 3 6283 2336 Email: ben.raymond at aad.gov.au Contact Address: Australian Antarctic Division 203 Channel Highway City: Kingston Province or State: Tasmania Postal Code: 7050 Country: Australia KLAUS MEINERS Role: INVESTIGATOR Phone: + 61 3 6226 7201 Email: klaus.meiners at acecrc.org.au Contact Address: Sea-ice Ecologist Antarctic Climate and Ecosystems Cooperative Research Centre (ACE CRC) Private Bag 80 City: Hobart Province or State: Tasmania Postal Code: 7001 Country: Australia

Publications/References
Raymond B., Meiners K., Fowler C.W., Pasquer, B., Williams, G.D., and Nicol, S. (2008) Cumulative solar irradiance and potential large-scale sea ice algae distribution off East Antarctica (30E–150E). Polar Biology DOI 10.1007/s00300-008-0538-5;

Raymond B., Meiners K., Curran M., van Ommen T. (2006) A conceptual model of the large-scale distribution of sea ice algae off East Antarctica. Abstracts of the SCAR Open Science Conference, Hobart, 12-14 July 2006. 0190/413;

Meiners K., Pasquer B., Raymond B. (2006) On the large-scale distribution of sea-ice algae off East Antarctica and the importance of sea-ice thickness and snow cover. International Workshop on Antarctic Sea Ice Thickness, Hobart, 5-7 July 2006. (Poster);

Creation and Review Dates

DIF Creation Date: 2005-09-02 Last DIF Revision Date: 2009-01-08

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