[Parameters: Topic='TERRESTRIAL HYDROSPHERE', Term='SNOW/ICE', Variable_Level_1='SNOW COVER']
CLPX-Ground: Ground-based L and Ku band polarimetric scatterometryEntry ID: NSIDC-0166
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.
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Data Set Citation
Dataset Originator/Creator: Kamal Sarabandi
Dataset Title: CLPX-Ground: Ground-based L and Ku band polarimetric scatterometry
Dataset Release Date: 2003-08-11
Dataset Release Place: Boulder, CO, USA
Dataset Publisher: National Snow and Ice Data Center (NSIDC)Online Resource: http://nsidc.org/data/nsidc-0166.html
Start Date: 2003-02-17Stop Date: 2003-02-26
Start Date: 2003-03-26Stop Date: 2003-03-30
ATMOSPHERE > PRECIPITATION > SNOW
CRYOSPHERE > SNOW/ICE > SNOW COVER
CRYOSPHERE > SNOW/ICE > SNOW DEPTH
TERRESTRIAL HYDROSPHERE > SNOW/ICE > SNOW COVER
TERRESTRIAL HYDROSPHERE > SNOW/ICE > SNOW DEPTH
SPECTRAL/ENGINEERING > MICROWAVE > MICROWAVE RADIANCE
SPECTRAL/ENGINEERING > RADAR > RADAR BACKSCATTER
SPECTRAL/ENGINEERING > RADAR > RETURN POWER
ISO Topic Category
Access Constraints These data are restricted to CLPX investigators until April 2004.
Data Set Progress
Distribution Media: ftp
Distribution Format: ASCII text files
Role: TECHNICAL CONTACT
Phone: +1 (303) 492-6199
Fax: +1 (303) 492-2468
Email: nsidc at nsidc.org
National Snow and Ice Data Center CIRES, 449 UCB University of Colorado
Province or State: CO
Postal Code: 80309-0449
Information on instruments: Johannessen, A. A.. 1990. CMI ES-300 User's Guide. Christian-Michelsen Institut, N-5036 Fantoft, Bergen Norway. 21 pp.
Johannessen, A. A.. 1995. CMI ES-300V User's Guide. Christian-Michelsen Institut, N-5036 Fantoft, Bergen Norway. 19 pp.
Lothe, T. 1997. CMI ES-300VIII User's Guide. Christian-Michelsen Institut, N-5036 Fantoft, Bergen Norway. 24 pp.
Information ... on data processing procedures: Strass, V. H.. 1998. Measuring sea ice draft and coverage with moored Upward Looking Sonars, Deep-Sea Res, I 45:795-818.
Results, moored ULS observations: Strass, V. H., and E. Fahrbach. 1998. Temporal and regional variation of sea ice draft and coverage in the Weddell Sea obtained from Upward Looking Sonars, Antarctic Sea Ice: Physical Processes, Interactions and Variability. Antarctic Res. Ser.74:123-139.
Harms, S. E. Fahrbach, and V.H. Strass. 2001. Sea ice transports in the Weddell Sea, J. Geophys. Res., XX (in press).
Creation and Review Dates
Last DIF Revision Date: 2012-05-13