Cold Land Processes Experiment (CLPX)

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Data Set Access


The Cold Land Processes Experiment Field campaign (CLPX) is part of the Advanced Microwave Scanning Radiometer evaluation (AMSR-E) campaign. CLPX studied cryospheric processes and remote sensing in a set of annual winter/spring field campaigns conducted over study areas in Colorado. More info about the CLPX campaigns and participating instruments can be found at Don Cline's site.

The GPS Bistatic Radar Delay Mapping Receiver (DMR) instrument participated in 2002 and 2003 flights over the Colorado mesoscale study areas. In 2002, the receiver was mounted on the NASA DC-8. In 2003, the receiver was flown on the NASA P-3. GPS signal reflections were collected using the standard hemispherical right hand circularly polarzied (RHCP) antenna mounted on the roof of the aircraft and a reversed polarization LHCP hemispherical antenna mounted on the belly. The reflections collected were from a variety of terrain, including dry plains, rugged mountains, valleys, snow-covered mountains, valleys, and lakes. The primary objective was to observe the quality of GPS bistatic radar reflections from snow-covered mountainous terrain to perhaps sense liquid water.

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Spatial and Temporal Coverage

Data were collected throughout each Meso-cell Study Area (MSA) within the Small Regional Study Area (SRSA, 105W 107.5W 39.5N 41N). Spatial resolution of these data is variable depending on airborne height and scattering regime (specular or rough). At 1 km height, 20 deg incidence angle, first Fresnel zone is a 30 m spot, while first range bin is a 1.5 km spot. At 10 km height 20 deg incidence angle, first Fresnel zone is an 80 m spot, while the first range bin is a 5.0 km spot. Data were collected 19 and 21 February 2002. Data were also collected 22- 24 February and 25, 30, 31 March 2003.

Data Format and Structure

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Analysis Results

Investigator Contacts

External Links

Last modified: Wednesday, 04-May-2005 15:03:11 MDT