Entry_ID: NSIDC-0152
Entry_Title: CLPX-Satellite: AVHRR/HRPT Brightness Temperatures and Reflectances
Group: 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
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Don
   Last_Name: Cline
   Email: cline@nohrsc.nws.gov
   Phone: 1 952 361 6610 x252
   Fax: 1 952  361 6634 
   Group: Contact_Address
      Address: NOHRSC
      Address: National Weather Service
      Address: National Operational Hydrologic Remote Sensing Center
      Address: 1735 Lake Drive W.
      City: Chanhassen
      Province_or_State: MN
      Postal_Code: 55317
   End_Group
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Don
   Last_Name: Cline
   Email: cline@nohrsc.nws.gov
   Phone: 1 952 361 6610 x252
   Fax: 1 952  361 6634 
   Group: Contact_Address
      Address: NOHRSC
      Address: National Weather Service
      Address: National Operational Hydrologic Remote Sensing Center
      Address: 1735 Lake Drive W.
      City: Chanhassen
      Province_or_State: MN
      Postal_Code: 55317
   End_Group
End_Group
Group: Personnel
   Role: Technical Contact
   First_Name: NSIDC
   Last_Name: User Services
   Email: nsidc@nsidc.org
   Phone: 1 303 492-6199 x
   Fax: 1 303  492-2468 x
   Group: Contact_Address
      Address: National Snow and Ice Data Center
      Address: CIRES, 449 UCB
      Address: University of Colorado
      City: Boulder
      Province_or_State: CO
      Postal_Code: 80309-0449
      Country: USA
   End_Group
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Spectral/Engineering
   Term: Infrared Wavelengths
   Variable_Level_1: Infrared Imagery
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Spectral/Engineering
   Term: Visible Wavelengths
   Variable_Level_1: Visible Imagery
End_Group
Keyword: AVHRR
Keyword: EROS
Keyword: HRPT
Keyword: Imagery
Keyword: LAC
Keyword: Radiance
Keyword: Raster
Keyword: Satellite
Sensor_Name: AVHRR > Advanced Very High Resolution Radiometer
Source_Name: NOAA-16 > National Oceanic & Atmospheric Administration-16
Source_Name: NOAA-17 > National Oceanic & Atmospheric Administration-17
Group: Temporal_Coverage
   Start_Date: 2001-11-09
   Stop_Date: 2003-06-26
End_Group
Data_Set_Progress: in work
Group: Spatial_Coverage
   Southernmost_Latitude: 38.45
   Northernmost_Latitude: 42.05
   Westernmost_Longitude: -108.55
   Easternmost_Longitude: -103.95
End_Group
Group: Location
   Location_Category: CONTINENT
   Location_Type: NORTH AMERICA
End_Group
Group: Location
   Location_Category: CONTINENT
   Location_Type: NORTH AMERICA
   Location_Subregion1: UNITED STATES OF AMERICA
   Detailed_Location: COLORADO, WYOMING
End_Group
Project: CLPX > Cold Land Processes Field Experiment
Group: 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.

End_Group
Access_Constraints: None
Group: Use_Constraints

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

End_Group
Data_Set_Language: English
Group: Data_Center
   Data_Center_Name: NASA DAAC > NASA DAAC at the National Snow and Ice Data Center
   Data_Center_URL: http://nsidc.org/daac/index.html
   Group: Personnel
      Role: Data Center Contact
      First_Name: NSIDC
      Last_Name: User Services
      Email: nsidc@nsidc.org
      Phone: 1 303 492-6199 
      Fax: 1 303  492-2468 
      Group: Contact_Address
         Address: National Snow and Ice Data Center
         Address: CIRES, 449 UCB
         Address: University of Colorado
         City: Boulder
         Province_or_State: CO
         Postal_Code: 80309-0449
         Country: USA
      End_Group
   End_Group
End_Group
Group: Data_Center
   Data_Center_Name: NSIDC > National Snow and Ice Data Center
   Data_Center_URL: http://nsidc.org
   Group: Personnel
      Role: Data Center Contact
      First_Name: NSIDC
      Last_Name: User Services
      Email: nsidc@nsidc.org
      Phone: 1 303 492-6199 
      Fax: 1 303  492-2468 
      Group: Contact_Address
         Address: National Snow and Ice Data Center
         Address: CIRES, 449 UCB
         Address: University of Colorado
         City: Boulder
         Province_or_State: CO
         Postal_Code: 80309-0449
         Country: USA
      End_Group
   End_Group
End_Group
Group: Distribution
   Distribution_Media: FTP
   Distribution_Size: 4.6 - 4.85 KB
   Distribution_Format: Binary
End_Group
Group: Distribution
   Distribution_Media: FTP
   Distribution_Size: 4.6 - 4.85 KB
   Distribution_Format: Geographic Tagged Image File Format (GeoTIFF) (.geotiff)
End_Group
Group: 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.

End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW PROJECT HOME PAGE
   End_Group
   URL: http://nsidc.org/data/clpx/
   Description: CLPX Site
End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW PROJECT HOME PAGE
   End_Group
   URL: http://nsidc.org/forms/nsidc0112.html
   Description: Register as a CLPX user
End_Group
Metadata_Name: CEOS IDN DIF
Metadata_Version: 9.7
DIF_Creation_Date: 2004-02-01
Last_DIF_Revision_Date: 2013-06-27
DIF_Revision_History:  updated version 1