研究分野: %5Bja%5D%C6%FC%CB%DC%C6%EE%B6%CB%C3%CF%B0%E8%B4%D1%C2%AC%C2%E2%28JARE%29%A4%CB%A4%E8%A4%EB%B4%D1%C2%AC%5B%2Fja%5D%5Ben%5DObservations%23by%23the%23Japanese%23Antarctic%23Research%23Expedition%5B%2Fen%5D