Microwave characteristics of ice on Lake Saroma observed by PALSAR-2 and Pi-SAR-2L (A study on microwave measurement of sea ice physical parameters)

Material type: 文書・図像類

Author: WAKABAYASHI, Hiroyukiほか

Publisher: 千葉大学環境リモートセンシング研究センター

Publication date: 2015-12-01

Material Format: Digital

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Note (General)：: type:text[ABSTRACT] The main objective of this research is to investigate the possible use of SAR data to monitor sea ice in the southern region of th...

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Material Type: 文書・図像類
Title: Microwave characteristics of ice on Lake Saroma observed by PALSAR-2 and Pi-SAR-2L (A study on microwave measurement of sea ice physical parameters)
Author/Editor: WAKABAYASHI, Hiroyuki
JOSAPHAT, Tetuko Sri Sumantyo
Author Heading: WAKABAYASHI, Hiroyuki
JOSAPHAT, Tetuko Sri Sumantyo
Publication, Distribution, etc.: 千葉大学環境リモートセンシング研究センター
Publication Date: 2015-12-01
Publication Date (W3CDTF): 2015-12-01
Periodical title: CEReS環境リモートセンシングシンポジウム資料集
No. or year of volume/issue: 18
Volume: 18
Pages: 20-20
Text Language Code: eng
Target Audience: 一般
Note (General): type:text
[ABSTRACT] The main objective of this research is to investigate the possible use of SAR data to monitor sea ice in the southern region of the Sea of Okhotsk. There are a lot of SAR satellites operating in orbit, and most satellites can observe the ground targets with various observation parameters. We would like to find out the suitable observation parameters for monitoring sea ice in relatively thin sea ice area. ALOS-2/PALSAR-2 and Pi-SAR-2L acquired the data covering the southern region of Sea of Okhotsk including Lake Saroma in the end of February 2015. We could not get good in-situ data simultaneously with the SAR observations due to the bad ice conditions in the east part of the lake. However, we found that there were various ice conditions, such as relatively thin ice and open water area, in the west part of the lake. By taking profiles of polarimetric parameters along the line crossing from west to east coast of the lake, it was found that VV to HH backscattering ratio at higher incidence angle was correlated with sea ice thickness. In addition, we found that the scattering entropy could not always detect open water, because we have very low backscattering coefficient in the open water area with no surface wind. It is possible to improve sea ice detection accuracy by combining polarization correlation with the scattering entropy.
Access Restrictions: 限定公開
Related Material (NCID): BA64563608
https://ci.nii.ac.jp/ncid/BA64563608
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 千葉大学 : 千葉大学学術成果リポジトリ