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Exploring scaling issues by using nasa cold land processes experiment(clpx-1, iop3) radiometric data
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Stankov, Boba Gasiewski, Al Koike, Toshio Armstrong, Richard Klein, Marian Graf Sr., Tobias Kim, Edward J. Brodzik, Mary Cline, Don Tedesco, Marco |
| Copyright Year | 2004 |
| Description | The NASA Cold-land Processes Field Experiment-1 (CLPX-1) involved several instruments in order to acquire data at different spatial resolutions. Indeed, one of the main tasks of CLPX-1 was to explore scaling issues associated with microwave remote sensing of snowpacks. To achieve this task, microwave brightness temperatures collected at 18.7, 36.5, and 89 GHz at LSOS test site by means of the University of Tokyo s Ground Based Microwave Radiometer-7 (GBMR-7) were compared with brightness temperatures recorded by the NOAA Polarimetric Scanning Radiometer (PSR/A) and by SSM/I and AMSR-E radiometers. Differences between different scales observations were observed and they may be due to the topography of the terrain and to observed footprints. In the case of satellite and airborne data, indeed, it is necessary to consider the heterogeneity of the terrain and the presence of trees inside the observed scene becomes a very important factor. Also when comparing data acquired only by the two satellites, differences were found. Different acquisition times and footprint positions, together with different calibration and validation procedures, can be responsible for the observed differences. |
| File Size | 395838 |
| Page Count | 4 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20040171650 |
| Archival Resource Key | ark:/13960/t4tj3g89q |
| Language | English |
| Publisher Date | 2004-01-01 |
| Access Restriction | Open |
| Subject Keyword | Microwave Radiometers Radiometers Heterogeneity Snow Microwave Imagery Calibrating Topography Footprints Brightness Temperature Polarimetry Remote Sensing Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
