Entry_ID: NSIDC-0166
Entry_Title: CLPX-Ground: Ground-based L and Ku band polarimetric scatterometry
Group: Data_Set_Citation
   Dataset_Creator: Sarabandi, K. 
   Dataset_Title: CLPX-Ground: Ground-based L and Ku band polarimetric scatterometry
   Dataset_Release_Date: 2003-08-11
   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-0166.html
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Kamal
   Last_Name: Sarabandi
   Email: saraband@eecs.umich.edu
   Phone: 1 734 936 1575 
   Fax: 1 734  647 2106 
   Group: Contact_Address
      Address: The University of Michigan
      Address: University of Michigan Radiation Laboratory
      Address: 1301 Beal Avenue
      City: Ann Arbor
      Province_or_State: MI
      Postal_Code: 48109-2122
      Country: USA
   End_Group
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Kamal
   Last_Name: Sarabandi
   Email: saraband@eecs.umich.edu
   Phone: 1 734 936 1575 
   Fax: 1 734  647 2106 
   Group: Contact_Address
      Address: The University of Michigan
      Address: University of Michigan Radiation Laboratory
      Address: 1301 Beal Avenue
      City: Ann Arbor
      Province_or_State: MI
      Postal_Code: 48109-2122
      Country: USA
   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: 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: Parameters
   Category: EARTH SCIENCE
   Topic: Atmosphere
   Term: Precipitation
   Variable_Level_1: Snow
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Cryosphere
   Term: Snow/Ice
   Variable_Level_1: Snow Cover
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Cryosphere
   Term: Snow/Ice
   Variable_Level_1: Snow Depth
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Spectral/Engineering
   Term: Microwave
   Variable_Level_1: Microwave Radiance
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Spectral/Engineering
   Term: Radar
   Variable_Level_1: Radar Backscatter
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Spectral/Engineering
   Term: Radar
   Variable_Level_1: Return Power
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Terrestrial Hydrosphere
   Term: Snow/Ice
   Variable_Level_1: Snow Cover
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Terrestrial Hydrosphere
   Term: Snow/Ice
   Variable_Level_1: Snow Depth
End_Group
Keyword: Ku- band radar
Keyword: L- band radar
Keyword: National Snow and Ice Data Center
Keyword: Radar
Keyword: Snow
Keyword: Snow Cover
Keyword: Snow Depth
Sensor_Name: SCATTEROMETERS
Source_Name: GROUND-BASED OBSERVATIONS
Source_Name: GROUND STATIONS
Group: Temporal_Coverage
   Start_Date: 2003-02-17
   Stop_Date: 2003-02-26
End_Group
Group: Temporal_Coverage
   Start_Date: 2003-03-26
   Stop_Date: 2003-03-30
End_Group
Data_Set_Progress: in work
Group: Spatial_Coverage
   Southernmost_Latitude: 39.95
   Northernmost_Latitude: 39.95
   Westernmost_Longitude: -105.9
   Easternmost_Longitude: -105.9
   Minimum_Altitude: 840.638 meters
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
End_Group
Group: Location
   Location_Category: GEOGRAPHIC REGION
   Location_Type: NORTHERN HEMISPHERE
End_Group
Project: CLPX > Cold Land Processes Field Experiment
Access_Constraints: These data are restricted to CLPX investigators until April 2004.
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: 12.8 MB
   Distribution_Format: ASCII Text (.txt)
End_Group
Group: Reference

   Tassoudji, M. A., K. Sarabandi and F.T. Ulaby, “Design consideration and 
   implementation of the LCX polarimetric scatterometer (POLARSCAT)”, 
   RadiationLaboratory Report No 022486-T-2, The University of Michigan,  June 
   1989.

   Kendra, J. R., “Microwave Remote Sensing of Snow: An Empirical/Theoretical  
   Scattering Model for Dense Random Media.” Ph. D. thesis, Univ. of Michigan, 
   Sept.1995.

   Ulaby, F.T., C. Elachi, “Radar Polarimetry for Geoscience Applications”,  
   Dedham MA: Artech House, Inc., 1990.

   Sarabandi, K. and F.T. Ulaby, “A convenient technique for polarimetric  
   calibration of single-antenna radar systems,” IEEE Trans. Geosci. Remote  
   Sensing, Vol. 28, pp 1022-1033, 1990.

   Sarabandi, K., F.T. Ulaby, and M.A. Tassoudji, “Calibration of polarimetric  
   radar systems with good polarization isolation,” IEEE Trans. Geosci. Remote  
   Sens., Sept. 1989.

   Sarabandi, K., Y. Oh, and F.T. Ulaby, “Measurement and calibration of 
   differential Mueller matrix of distributed targets,” IEEE Trans. Antennas 
   Propagat., Vol. 40, pp 1524-1532, 1992.

   Ulaby, F.T., R.K. Moore, and A.D. Fung, “Microwave Remote Sensing: Active  and 
   Passive”, Vol 1, Dedham, MA: Artech House, Inc., 1986.

End_Group
Group: Summary

   This data set includes ground-based radar observations carried out at the 
   Fraser Experimental Forest Headquarters, Colorado, USA (39.95 N, 105.9 W), 
   between 17-26 February and 26-30 March 2003. Truck-mounted L- and Ku-band 
   scatterometers were used to collect fully polarimetric backscattering 
   coefficients of snow. The calibrated radar systems measured the amplitude and 
   phase of backscattered signal over a relatively wide bandwidth at L-band 
   (1.1-1.4 GHz) and Ku-band (15.25-15.75 GHz). Backscatter measurements of an 
   open snow pack were collected at three different incidence angles (20, 35, and 
   50 degrees) several times a day. This data set is part of the NASA Cold Land 
   Processes Field Experiment (CLPX).

   The NASA CLPX is a multi-sensor, multi-scale experiment that focuses on 
   extending a local-scale understanding of water fluxes, storage, and 
   transformations to regional and global scales. Within a framework of nested 
   study areas in the central Rocky Mountains of the western United States, 
   ranging from 1-ha to 160,000 km2, intensive ground, airborne, and spaceborne 
   observations are collected. Data collection focuses on two seasons: 
   mid-winter, when conditions are generally frozen and dry, and early spring, a 
   transitional period when both frozen and thawed, dry and wet conditions are 
   widespread.

End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW PROJECT HOME PAGE
   End_Group
   URL: http://www.nohrsc.nws.gov/~cline/clpx.html
   Description: NASA Cold Land Processes Experiment
End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW PROJECT HOME PAGE
   End_Group
   URL: http://nsidc.org/data/clpx/
   Description: NSIDC 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: 2003-08-11
Last_DIF_Revision_Date: 2013-06-28
DIF_Revision_History:  updated version and citation