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CLPX-Satellite: AVHRR/HRPT Brightness Temperatures and Reflectances

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Entry ID

NSIDC-0152

Summary

This data set includes AVHRR/HRPT (Advanced Very High Resolution Radiometer/High Resolution Picture Transmission) brightness temperatures and reflectances over the NASA Cold Land Processes Field Experiment (CLPX) Large Regional Study Area (LRSA) (NW corner: 42°N, 108.5°W, SE corner: 38.5°N 104°W). Data are gridded to the LRSA at 1.1 km (or 30 arc-second) resolution. Data were collected between November 2001 and May 2003. Reflectance files contain flat binary rasters of 2-byte unsigned integers representing albedo. The brightness temperature files contain 2-byte unsigned integers representing interpolated temperatures in tenths of degrees Kelvin.

Geographic Coverage

 

Spatial Coordinates:
N: 42.05°     S: 38.45°     E: -103.95°     W: -108.55°    

Data Set Citation

Dataset Creator: Cline, D.
Dataset Title: CLPX-Satellite: AVHRR/HRPT Brightness Temperatures and Reflectances
Dataset Release Date: 2004-02-01
Dataset Release Place: Boulder, Colorado USA
Dataset Publisher: NSIDC DAAC: NASA DAAC at the National Snow and Ice Data Center
Online Resource: http://nsidc.org/data/nsidc-0152.html

Temporal Coverage

Start Date: 2001-11-09
Stop Date: 2003-06-26

Location Keywords

  • CONTINENT NORTH AMERICA
  • CONTINENT NORTH AMERICA UNITED STATES OF AMERICA COLORADO, WYOMING

Science Keywords

  • Spectral/Engineering Infrared Wavelengths Infrared Imagery
  • Spectral/Engineering Visible Wavelengths Visible Imagery

Ancillary Keywords

  • AVHRR
  • EROS
  • HRPT
  • Imagery
  • LAC
  • Radiance
  • Raster
  • Satellite

Platform

  • NOAA-16 National Oceanic & Atmospheric Administration-16
  • NOAA-17 National Oceanic & Atmospheric Administration-17

Instrument

  • AVHRR Advanced Very High Resolution Radiometer

Project

  • CLPX Cold Land Processes Field Experiment

Quality

The AVHRR sensor was designed to view cold space and one or more internal warm blackbodies for each scan sequence while in orbit. In general, radiometric calibration involves exposing a radiometer to sources of radiation that have been calibrated against primary or secondary standards and determining a relationship between the output of the radiometer and the intensity of the incident radiation (radiance). All of the radiometers flown on the NOAA/TIROS satellites undergo extensive prelaunch testing and calibration by their manufacturers to characterize their performance.

As the spacecraft moves through its orbit, the expected angular distance between the nadir of adjacent LAC/HRPT scans is approximately 0.0296 degrees of arc, or 3.2914 kilometers, as measured from the center of Earth. The actual value of the average angular distance can vary by up to about 0.1712 kilometers due to variations in satellite height, scan angle, and other factors. The instantaneous field-of-view (IFOV) for all channels is specified to be 1.3 +/- 0.1 milliradians.

Access Constraints

None

Use Constraints

Please acknowledgement the U.S. Geological Survey in products derived from these data.

Data Set Progress

in work

Data Center

NASA DAAC at the National Snow and Ice Data Center
Data Center URL: http://nsidc.org/daac/index.html

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

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: FTP
Distribution Size: 4.6 - 4.85 KB
Distribution Format: Binary

Distribution Media: FTP
Distribution Size: 4.6 - 4.85 KB
Distribution Format: Geographic Tagged Image File Format (GeoTIFF) (.geotiff)

Personnel

Don Cline
Role: INVESTIGATOR
Phone: 1 952 361 6610 x252
Fax: 1 952 361 6634
Email: cline@nohrsc.nws.gov
Contact Address:

  • NOHRSC
  • National Weather Service
  • National Operational Hydrologic Remote Sensing Center
  • 1735 Lake Drive W.

City: Chanhassen
Province or State: MN
Postal Code: 55317

Don Cline
Role: INVESTIGATOR
Phone: 1 952 361 6610 x252
Fax: 1 952 361 6634
Email: cline@nohrsc.nws.gov
Contact Address:

  • NOHRSC
  • National Weather Service
  • National Operational Hydrologic Remote Sensing Center
  • 1735 Lake Drive W.

City: Chanhassen
Province or State: MN
Postal Code: 55317

NSIDC User Services
Role: TECHNICAL CONTACT
Phone: 1 303 492-6199 x
Fax: 1 303 492-2468 x
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

Related URL

VIEW PROJECT HOME PAGE
CLPX Site

VIEW PROJECT HOME PAGE
Register as a CLPX user

Metadata Name and Version

Metadata Name: CEOS IDN DIF
Metadata Version: 9.7

Creation and Review Dates

DIF Creation Date: 2004-02-01
Last DIF Revision Date: 2013-06-27

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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