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Proceedings Paper

Passive/active microwave soil moisture retrieval disaggregation using SMAPVEX12 data
Author(s): Bin Fang; Venkat Lakshmi
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Paper Abstract

SMAPVEX12 is a pre-launch field campaign for evaluating and testing the soil moisture retrievals retrieved from the SMAP project. During this experiment, airborne microwave observations from PALS radiometer and radar: brightness temperature and radar backscatter, as well as ground measurements were acquired. In this study, the remote sensing soil moisture was retrieved from SMAPVEX12 PALS radiometer L-band (6GHz) brightness temperature at high altitude flight. The PALS soil moisture was then aggregated and compared with PALS radar backscatter coefficient to generate high spatial resolution microwave soil moisture in change. The R2 values of PALS soil moisture retrieval validation range from 0.407-0.881, indicating good accuracy of soil moisture retrieval. The R2 values of comparison between aggregated PALS Δ􀟠 and PALS Δ􀟪 range from 0.492-0.805, while the downscaled Δ􀟠 validation range from 0.128- 0.383.

Paper Details

Date Published: 8 November 2014
PDF: 10 pages
Proc. SPIE 9260, Land Surface Remote Sensing II, 92600D (8 November 2014); doi: 10.1117/12.2064441
Show Author Affiliations
Bin Fang, Univ. of South Carolina (United States)
Venkat Lakshmi, Univ. of South Carolina (United States)

Published in SPIE Proceedings Vol. 9260:
Land Surface Remote Sensing II
Thomas J. Jackson; Jing Ming Chen; Peng Gong; Shunlin Liang, Editor(s)

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