BYU Daily Browse Images of QuikSCAT Sigma-0 Measurements

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Entry ID

NSIDC-0256

Summary

The SeaWinds on QuikSCAT scatterometer provides normalized radar cross section (sigma-0) measurements of the Earth's surface. While originally designed for wind observation, scatterometers have proven useful in a variety of land and ice studies. To aid in the selection of regions and time periods for study, Brigham Young University (BYU) has produced this global sigma-0 browse product. This product consists of spatial and temporal averages of QuikSCAT Level 1B sigma-0 values over one-day periods from 19 July 1999 to the present.

This data set consists of sigma-0 browse images for the entire globe, the northern hemisphere, and the southern hemisphere. The global images are rectangular latitude/longitude grids covering the entire globe with a resolution of 5 pixels/deg, or about 22.5 km/pixel at the equator. It suits mid-latitude regions but distorts polar regions. Hence, separate hemispheric products are created for high-latitude regions. Those images are polar stereographic projections using a 70 degree reference latitude with a nominal grid size of about 22.5 km. The polar views include only measurements above a high latitude cutoff of 52 degrees. These data are available via FTP, on CD-R and on 8 mm tape.

Geographic Coverage

 

Spatial Coordinates:
N: 90°     S: -90°     E: 180°     W: -180°    

Data Set Citation

Dataset Creator: David G. Long
Dataset Title: BYU Daily Browse Images of QuikSCAT Sigma-0 Measurements
Dataset Release Date: 2000-01-01
Dataset Release Place: Pasadena, California USA
Dataset Publisher: JPL: Jet Propulsion Laboratory
Online Resource: http://nsidc.org/data/nsidc-0256.html

Temporal Coverage

Start Date: 1999-01-19

Data Resolution

Latitude Resolution: 22.5 km
Longitude Resolution: 22.5 km
Temporal Resolution: 1 day

Location Keywords

  • GEOGRAPHIC REGION GLOBAL
  • GEOGRAPHIC REGION POLAR

Science Keywords

  • Spectral/Engineering Radar Radar Backscatter
  • Spectral/Engineering Radar Sigma Naught

Platform

  • SATELLITES

Instrument

  • SCATTEROMETERS

Data Set Progress

in work

Data Center

National Snow and Ice Data Center
Data Center URL: http://nsidc.org

Data Center Personnel

Name: NSIDC User Services
Phone: 1 303 492-6199
Fax: 1 303 492-2468
Email: nsidc@nsidc.org
Contact Address:

  • National Snow and Ice Data Center
  • CIRES, 449 UCB
  • University of Colorado

City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA

Distribution

Distribution Media: 8-mm Tape
Distribution Format: SIR

Distribution Media: CD-ROM
Distribution Format: SIR

Distribution Media: FTP
Distribution Format: SIR

Personnel

David G. Long
Role: INVESTIGATOR
Email: long@et.byu.edu
Contact Address:

  • Brigham Young University
  • Microwave Earth Remote Sensing (MERS) Laboratory
  • 459 Clyde Building

City: Provo
Province or State: UT
Postal Code: 84602
Country: USA

Related URL

VIEW PROJECT HOME PAGE
Data set description

Metadata Name and Version

Metadata Name: CEOS IDN DIF
Metadata Version: 9.7

Creation and Review Dates

DIF Creation Date: 2000-01-01
Last DIF Revision Date: 2012-07-12

Metadata Views

DIF Text-Only

Directory Interchange Format (DIF) in plain text

DIF XML

Directory Interchange Format (DIF) in Extensible Markup Language (XML)

FGDC HTML

U.S. Federal Geographic Data Committee (FGDC) Content Standard for Digital Geospatial Metadata (CSDGM)

ISO HTML

International Organization for Standardization (ISO) 19115:2003 Geographic Information Metadata

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