Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6348565 | International Journal of Applied Earth Observation and Geoinformation | 2016 | 13 Pages |
Abstract
The impact of vegetation is studied in more detail through analysis of the Radar Vegetation Index (RVI). Although seasonal variability is captured, the dynamic range of the RVI is insufficient for a meaningful signal-to-noise. Further vegetation optical depth (Ï) is estimated using the Ï-Ï concept by reconstructing the Microwave Polarization Difference Index (MPDI) derived from Aquarius radiometer data. Peaks in the Ï estimates are noted in the months January/February and July/August. Evidence suggests that the magnitude of Ï is a measure for the frost depth when temperatures are below freezing point whereas the behavior of Ï in the warm season is in line with the vegetation dynamics.
Keywords
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Computers in Earth Sciences
Authors
Qiang Wang, Rogier van der Velde, Zhongbo Su, Jun Wen,