Name
Abstract | ||
|---|---|---|
During the two different overflights of the Bonanza Creek Experimental Forest (near Fairbanks, Alaska) by the NASA/JPL radar polarimeter in March 1988, the environmental conditions over the region changed significantly with temperatures ranging from unseasonably warm (1 to 9°C) during one day to well below freezing (-8 to -15°C) during the other. The moisture content of the snow and trees changed from a liquid to frozen state causing significant changes in the radiometric and polarimetric responses of the forest to the radar wave. The L-band polarimetric observations are summarized in this paper. Up to a 6 dB change in the backscatter was observed in certain forest stands at L-band. Features extracted from the Stokes matrices of the same stands from the thawed and frozen days suggest the changes in the relative contribution of the different scattering mechanisms to the radar return. Comparison of the polarimetric signatures indicate relatively higher contribution from diffuse scatterers on the thawed day than on the frozen day. The sensitivity of the polarimetric signatures to changing environmental conditions is clearly demonstrated |
Year | DOI | Venue |
|---|---|---|
1994 | 10.1109/36.295051 | Geoscience and Remote Sensing, IEEE Transactions |
Keywords | Field | DocType |
backscatter,forestry,geophysical techniques,oceanographic regions,polarimetry,radar cross-sections,remote sensing by radar,synthetic aperture radar,0.39 to 1.55 GHz,AD 1988 03,Alaska,Bonanza Creek Experimental Forest,Fairbanks,L-band UHF,USA,United States,backscatter,geophysical measurement technique,ice frozen thawed,land surface vegetation forestry forest,microwave,moisture content,polarimetry,polarization signature,radar remote sensing,radar scattering,tree | Radar,Polarimetry,Synthetic aperture radar,Remote sensing,Backscatter,Experimental forest,Radiometry,Water content,Snow,Mathematics | Journal |
Volume | Issue | ISSN |
32 | 2 | 0196-2892 |
Citations | PageRank | References |
14 | 5.86 | 1 |
Authors | ||
4 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Kwok, R. | 1 | 88 | 28.85 |
| Eric J. M. Rignot | 2 | 387 | 97.21 |
| Way, J. | 3 | 101 | 59.18 |
| Freeman, A. | 4 | 23 | 6.85 |