CLPX-Ground: Ground-based L and Ku band polarimetric scatterometry

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Entry ID

NSIDC-0166

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.

Geographic Coverage

 

Spatial Coordinates:
N: 39.95°     S: 39.95°     E: -105.9°     W: -105.9°     Min Altitude: 840.638 meters    

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

Temporal Coverage

Start Date: 2003-03-26
Stop Date: 2003-03-30

Start Date: 2003-02-17
Stop Date: 2003-02-26

Location Keywords

  • CONTINENT NORTH AMERICA
  • CONTINENT NORTH AMERICA UNITED STATES OF AMERICA
  • GEOGRAPHIC REGION NORTHERN HEMISPHERE

Science Keywords

  • Atmosphere Precipitation Snow
  • Cryosphere Snow/Ice Snow Cover
  • Cryosphere Snow/Ice Snow Depth
  • Spectral/Engineering Microwave Microwave Radiance
  • Spectral/Engineering Radar Radar Backscatter
  • Spectral/Engineering Radar Return Power
  • Terrestrial Hydrosphere Snow/Ice Snow Cover
  • Terrestrial Hydrosphere Snow/Ice Snow Depth

Ancillary Keywords

  • Ku- band radar
  • L- band radar
  • National Snow and Ice Data Center
  • Radar
  • Snow
  • Snow Cover
  • Snow Depth

Platform

  • GROUND-BASED OBSERVATIONS
  • GROUND STATIONS

Instrument

  • SCATTEROMETERS

Project

  • CLPX Cold Land Processes Field Experiment

Access Constraints

These data are restricted to CLPX investigators until April 2004.

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: 12.8 MB
Distribution Format: ASCII Text (.txt)

Personnel

Kamal Sarabandi
Role: INVESTIGATOR
Phone: 1 734 936 1575
Fax: 1 734 647 2106
Email: saraband@eecs.umich.edu
Contact Address:

  • The University of Michigan
  • University of Michigan Radiation Laboratory
  • 1301 Beal Avenue

City: Ann Arbor
Province or State: MI
Postal Code: 48109-2122
Country: USA

Kamal Sarabandi
Role: INVESTIGATOR
Phone: 1 734 936 1575
Fax: 1 734 647 2106
Email: saraband@eecs.umich.edu
Contact Address:

  • The University of Michigan
  • University of Michigan Radiation Laboratory
  • 1301 Beal Avenue

City: Ann Arbor
Province or State: MI
Postal Code: 48109-2122
Country: USA

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

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

Related URL

VIEW PROJECT HOME PAGE
NASA Cold Land Processes Experiment

VIEW PROJECT HOME PAGE
NSIDC CLPX Site

VIEW PROJECT HOME PAGE
Register as a CLPX user

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.

Metadata Name and Version

Metadata Name: CEOS IDN DIF
Metadata Version: 9.7

Creation and Review Dates

DIF Creation Date: 2003-08-11
Last DIF Revision Date: 2014-04-22

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