Extraction of temporal change on tsunami damaged agricultural field by the 2011 tohoku earthquake using terrasar-x data

Chinatsu Yonezawa, Manabu Watanabe, Genya Saito

研究成果: Conference contribution

2 被引用数 (Scopus)

抄録

We analyzed backscattering characteristics from TerraSAR-X data to observe changes occurring in agricultural fields damaged by a tsunami that was caused by the 2011 Tohoku earthquake. We used these data to extracted information about the drying process following flooding by this tsunami. Twenty time series datasets were computed, ranging from the day after the disaster to six months later. Flooded agricultural fields show lower backscattering coefficients than non-flooded areas. The results showed that some agricultural fields were flooded for more than three months. Backscattering coefficients are affected by incidence angle, yet temporal changes were clearly extracted from the backscattering coefficients of datasets with the same observation direction and incidence angle. The average difference between the mean backscattering coefficients of areas of agricultural field affected by the tsunami and those of areas not touched by the tsunami was seen to generally decrease with time.

本文言語English
ホスト出版物のタイトル34th Asian Conference on Remote Sensing 2013, ACRS 2013
出版社Asian Association on Remote Sensing
ページ3723-3729
ページ数7
ISBN(印刷版)9781629939100
出版ステータスPublished - 2013 1 1
イベント34th Asian Conference on Remote Sensing 2013, ACRS 2013 - Bali, Indonesia
継続期間: 2013 10 202013 10 24

出版物シリーズ

名前34th Asian Conference on Remote Sensing 2013, ACRS 2013
4

Other

Other34th Asian Conference on Remote Sensing 2013, ACRS 2013
CountryIndonesia
CityBali
Period13/10/2013/10/24

ASJC Scopus subject areas

  • Computer Networks and Communications

フィンガープリント 「Extraction of temporal change on tsunami damaged agricultural field by the 2011 tohoku earthquake using terrasar-x data」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル