[S-TT59_29AM1] 合成開口レーダー

[STT59-05] 多周波数SARによる氷床-棚氷域モニタリング

*山之口 勤¹、土井 浩一郎²、中村 和樹³、青木 茂⁴ (1.（一財）リモート／センシング技術センター、2.国立極地研究所、3.日本大学、4.北海道大学　低温科学研究所)

キーワード：氷床, 多周波数, SAR

Environment of Antarctic continent and ice sheet marginal zone is quite important for understanding the mass balance of ice, formation of deep ocean water and other cryospheric phenomena.Previous study showed the usefulness of SAR data to understand what is happen on the bounary area between ice sheet and ice shelf by SAR data analysis, and achieved the mapping of ice sheet surface velocity mapping. In recent, many kinds of satellite equipped SAR sensor plan to launch and these data are available trough the scientific Research Announcement (RA) or Announcement of Oppotunitty (AO). Based on these facts, this study focuses on the use of multi-frequency SAR data for ice sheet marginal zone monitoring. Especially, we focus on the use of InSAR analysis for grounding line extraction, ice flow velocity mapping by offset tracking, and understanding the image feature difference through the interpretation of X-, C- and L- band SAR data. We use X-band data by TerraSAR-X, C-band data by ENVISAT and ERS-1/2, and L-band data by ALOS/PALSAR data. Then, we will try to describe the applicability and prospectives of ALOS-2 / PALSAR-2 dataTerraSAR-X data were provided by DLRs' AO project (Proposal No. HYD1808), ERS-1/2 and ENVISAT data were provided by ESA Cat-1 AO project, (project C1P.7657) and ALOS/PALSAR data were provided by Research Announcement by JAXA PI project (PI No. P1418002).