NON-SEA-SALT SULFATE AND NITRATE VARIATIONS IN THE S25 CORE, NEAR THE COASTAL REGION, EAST ANTARCTICA

• Main Authors: ワタナベ, コウイチ, サトウ, カズヒデ, カミヤマ, コキチ, モトヤマ, ヒデアキ, ワタナベ, オキツグ, WATANABE, Koichi, SATOW, Kazuhide, KAMIYAMA, Kokichi, MOTOYAMA, Hideaki, WATANABE, Okitsugu
• Language: English
• Published: National Institute of Polar Research 1999
• Subjects: Antarctic; The Antarctic; East Antarctica; Mizuho; Mizuho Plateau; Antarc*; Antarctica; Polar meteorology and glaciology
• Online Access: https://nipr.repo.nii.ac.jp/record/2890/files/KJ00002409905.pdf; https://doi.org/10.15094/00002890; https://nipr.repo.nii.ac.jp/records/2890

P(論文) Non-sea-salt sulfate (nssSO_4^<2->) and nitrate (NO_3^-) data in the S25 core in the coastal region on Mizuho Plateau, East Antarctica, have been analyzed. Time series of nssSO_4^<2-> which is mainly derived from marine-biogenic sulfur (DMS), showed not only seasonal variations, but also 4-5 year and about 8 year variations. The result indicates that DMS emission and the transport process of nssSO_4^<2-> may be affected by the Antarctic Circumpolar Wave (ACW), whose initiation is probably associated with El Nino activity. The NO_3 concentrations in the S25 core presented about 11-year variations corresponding to the solar cycle. departmental bulletin paper