Study on the forest observation in Kushiro wetland by using dual-frequency and fully polarimetric airborne SAR (Pi-SAR) data. - Kazuki Nakamura; Hiroyuki Wakabayashi; Hisashi Shinsho; Hideo Maeno; Seiho Uratsuka; Akitsugu Nadai; Toshihiko Umehara; Toshifumi Moriyama (IGARSS, 2004)