Identification

Title

RADARSAT SAR Sea Ice Deformation [H. Stern and Moritz, R.]

Alternative title(s)

13.419

Abstract

The Canadian RADARSAT satellite collected 195 synthetic aperture radar (SAR) images of the SHEBA site between November 1, 1997, and October 8, 1998 (roughly one image every 3-5 days). The C-band (5.3 GHz) RADARSAT SAR imaged a swath on the earth 460 km wide (in ScanSAR mode) with a pixel size of 50 m, unhampered by clouds or darkness. The satellite data were received and processed into imagery at the Alaska SAR Facility (ASF) in Fairbanks. Sequential pairs of images were then processed by the RADARSAT Geophysical Processor System (RGPS) at the Jet Propulsion Laboratory (JPL) in Pasadena to derive the motion of the sea ice on a 5-km grid by tracking common features in each pair of images. Thus we have a year-long record of the spatial pattern of ice motion and the radar backscatter in the vicinity of the SHEBA site. Ice deformation (divergence, shear) and ice vorticity are computed from the RGPS ice motion products. This dataset contains 4 sea-ice deformation products containing divergence, shear, and vorticity values based on 4 square regions centered on the SHEBA station: 50 x 50 km, 100 x 100 km, 150 x 150 km, and 200 x 200 km. Additionally, there are 4 graphical products, one of each: divergence, shear, vorticity, and area.

Resource type

dataset

Resource locator

https://data.eol.ucar.edu/dataset/13.419

protocol: https

description: Dataset homepage

https://data.eol.ucar.edu/cgi-bin/codiac/fgr_form/id=13.419

protocol: https

description: Dataset order request form. Data files are made available via FTP.

function: order

Unique resource identifier

code

13.419

codeSpace

Dataset language

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

climatologyMeteorologyAtmosphere

Keywords

Keyword set

keyword value

dataset

originating controlled vocabulary

title

Resource Type

reference date

date type

revision

effective date

2014-10-16

Keyword set

keyword value

Satellite, RADARSAT

Keyword set

keyword value

Sea Ice

Oceanography

Arctic

Satellite

Keyword set

keyword value

EARTH SCIENCE > OCEANS > SEA ICE > ICE DEFORMATION

originating controlled vocabulary

title

Global Change Master Directory (GCMD)

reference date

date type

revision

effective date

2018-02-27

Geographic location

West bounding longitude

-170.00000

East bounding longitude

-130.00000

North bounding latitude

80.00000

South bounding latitude

70.00000

Temporal reference

Temporal extent

Begin position

1997-11-01T00:00:00Z

End position

1998-10-08T23:59:59Z

Dataset reference date

date type

publication

effective date

2020-07-31T20:38:36Z

Frequency of update

Quality and validity

Lineage

Conformity

Data format

name of format

version of format

Constraints related to access and use

Constraint set

Use constraints

none

Limitations on public access

none

Responsible organisations

Responsible party

contact position

EOL Data Support

organisation name

UCAR/NCAR - Earth Observing Laboratory

full postal address

PO Box 3000

Boulder

80307-3000

email address

datahelp@eol.ucar.edu

web address

https://data.eol.ucar.edu/

responsible party role

pointOfContact

Responsible party

organisation name

University of Washington

full postal address

Box 355640 Applied Physics Laboratory 1013 NE 40th St

Seattle

98195

telephone number

206-543-7253

email address

hstern@u.washington.edu

responsible party role

pointOfContact

Metadata on metadata

Metadata point of contact

contact position

EOL Data Support

organisation name

UCAR/NCAR - Earth Observing Laboratory

full postal address

PO Box 3000

Boulder

80307-3000

email address

datahelp@eol.ucar.edu

web address

https://data.eol.ucar.edu/

responsible party role

pointOfContact

Metadata date

2024-12-26T23:50:15Z

Metadata language

eng; USA