Simultaneous field experiments with PALSAR observations for soil moisture estimation

Manabu Watanabe, Gaku Kadosaki, Masami Fukuda, Motoyuki Sato

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We performed three field experiments with PALSAR/polarimetry observations in Ulaanbaatar/Mongolia, Arctic National Wildlife Region (ANWR/Alaska)/US, and Sendai/Japan, to evaluate soil moisture models. The PALSAR polarimetry observations with off-nadir angle of 21.5° were done in May 4, 2007, Jul. 29, 2007, and Apr. 14, 2007 in each place. On the other hand, the field experiments were done for May 2-7, 2007, Jul. 28-Aug 4, 2007, and Apr. 14, 2007. The surface parameters derived from field measurements show large dynamic ranges, which are from 4% to 80% for soil moisture value, from 0.16 to 2.22 for surface roughness, and from 1.97 to 8.09 for correlation length. We applied SPM model, X-bragg model, and Oh model in this time. While some discrepancies are appeared, the SPM and Oh models show agreements with absolute/relative -0 value in some degree. The X-bragg model shows moderate agreement in anisotropy-ks relation.

Original languageEnglish
Title of host publication2008 IEEE International Geoscience and Remote Sensing Symposium - Proceedings
PagesIII386-III389
Edition1
DOIs
Publication statusPublished - 2008 Dec 1
Event2008 IEEE International Geoscience and Remote Sensing Symposium - Proceedings - Boston, MA, United States
Duration: 2008 Jul 62008 Jul 11

Publication series

NameInternational Geoscience and Remote Sensing Symposium (IGARSS)
Number1
Volume3

Other

Other2008 IEEE International Geoscience and Remote Sensing Symposium - Proceedings
CountryUnited States
CityBoston, MA
Period08/7/608/7/11

Keywords

  • Component
  • L-band SAR
  • Soil moisture

ASJC Scopus subject areas

  • Computer Science Applications
  • Earth and Planetary Sciences(all)

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    Watanabe, M., Kadosaki, G., Fukuda, M., & Sato, M. (2008). Simultaneous field experiments with PALSAR observations for soil moisture estimation. In 2008 IEEE International Geoscience and Remote Sensing Symposium - Proceedings (1 ed., pp. III386-III389). [4779364] (International Geoscience and Remote Sensing Symposium (IGARSS); Vol. 3, No. 1). https://doi.org/10.1109/IGARSS.2008.4779364