Simultaneous field experiments with PALSAR observations for soil moisture estimation

Manabu Watanabe, Gaku Kadosaki, Masami Fukuda, Motoyuki Sato

研究成果: Conference contribution

抄録

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.

本文言語English
ホスト出版物のタイトル2008 IEEE International Geoscience and Remote Sensing Symposium - Proceedings
ページIII386-III389
1
DOI
出版ステータスPublished - 2008 12月 1
イベント2008 IEEE International Geoscience and Remote Sensing Symposium - Proceedings - Boston, MA, United States
継続期間: 2008 7月 62008 7月 11

出版物シリーズ

名前International Geoscience and Remote Sensing Symposium (IGARSS)
番号1
3

Other

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

ASJC Scopus subject areas

  • コンピュータ サイエンスの応用
  • 地球惑星科学(全般)

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