CLPX-Ground: Ground-based L and Ku band polarimetric scatterometry
Entry ID: NSIDC-0166

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Summary
Abstract: 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.

Related URL
Link: VIEW PROJECT HOME PAGE
Description: NSIDC CLPX Site


Link: VIEW PROJECT HOME PAGE
Description: NASA Cold Land Processes Experiment


Link: VIEW PROJECT HOME PAGE
Description: Register as a CLPX user


Geographic Coverage
 N: 39.95 S: 39.95  E: -105.9  W: -105.9
 Min Altitude: 840.638 METERS

Data Set Citation
Dataset Originator/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
Version: 1
Online Resource: http://nsidc.org/data/NSIDC-0166


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


Science Keywords
SPECTRAL/ENGINEERING >MICROWAVE >MICROWAVE RADIANCE    [Definition]
SPECTRAL/ENGINEERING >RADAR >RADAR BACKSCATTER    [Definition]
SPECTRAL/ENGINEERING >RADAR >RETURN POWER    [Definition]
ATMOSPHERE >PRECIPITATION >SNOW    [Definition]
CRYOSPHERE >SNOW/ICE >SNOW COVER    [Definition]
TERRESTRIAL HYDROSPHERE >SNOW/ICE >SNOW COVER    [Definition]
CRYOSPHERE >SNOW/ICE >SNOW DEPTH    [Definition]
TERRESTRIAL HYDROSPHERE >SNOW/ICE >SNOW DEPTH    [Definition]


ISO Topic Category
IMAGERY/BASE MAPS/EARTH COVER
CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
INLAND WATERS
GEOSCIENTIFIC INFORMATION


Platform
GROUND STATIONS    [Information]
GROUND-BASED OBSERVATIONS    [Information]


Instrument
Scatterometers    [Information]


Project
CLPX >Cold Land Processes Field Experiment    [Information]
ESIP >Earth Science Information Partners Program    [Information]
EOSDIS >Earth Observing System Data Information System    [Information]


Access Constraints
These data are restricted to CLPX investigators until April 2004.


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


Data Set Progress
IN WORK


Data Center
NSIDC Distributed Active Archive Center    [Information]
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 at 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    [Information]
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 at 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: (734) 936 1575
Fax: (734) 647 2106
Email: saraband at eecs.umich.edu
Contact Address:
University of Michigan
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
Fax: +1 (303) 492-2468
Email: nsidc at 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: 952 361 6610 x252
Fax: 952 361 6634
Email: cline at nohrsc.nws.gov
Contact Address:
National Weather Service
National Operational Hydrologic Remote Sensing Center
1735 Lake Drive W.
City: Chanhassen
Province or State: MN
Postal Code: 55317


Publications/References
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.

Creation and Review Dates
DIF Creation Date: 2003-08-11
Last DIF Revision Date: 2014-07-07

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