Accumulation rate, volcanic tie points, ECM, DEP, nssSO4, density and chronology from shallow ice cores around Dome Fuji, East Antarctica ...

• Main Authors: Oyabu, Ikumi, Kawamura, Kenji, Fujita, Shuji, Inoue, Ryo, Motoyama, Hideaki, Fukui, Kotaro, Hirabayashi, Motohiro, Hoshina, Yu, Kurita, Naoyuki, Nakazawa, Fumio, Ohno, Hiroshi, Sugiura, Konosuke, Suzuki, Toshitaka, Tsutaki, Shun, Abe-Ouchi, Ayako, Niwano, Masashi, Parrenin, Frederic, Saito, Fuyuki, Yoshimori, Masakazu
• Format: Dataset
• Language: English
• Published: Arctic Data archive System (ADS), Japan 2023
• Subjects: CLIMATE INDICATORS>PALEOCLIMATE INDICATORS>ICE CORE RECORDS>ELECTRICAL PROPERTIES; CLIMATE INDICATORS>PALEOCLIMATE INDICATORS>ICE CORE RECORDS>IONS; CLIMATE INDICATORS>CRYOSPHERIC INDICATORS>ICE GROWTH/MELT; CRYOSPHERE>GLACIERS/ICE SHEETS>GLACIER MASS BALANCE/ICE SHEET MASS BALANCE; CRYOSPHERE>GLACIERS/ICE SHEETS>AGE AT ICE-THICKNESS-NORMALIZED DEPTHS; CRYOSPHERE>GLACIERS/ICE SHEETS>ICE SHEETS; PALEOCLIMATE>ICE CORE RECORDS>ELECTRICAL PROPERTIES; PALEOCLIMATE>ICE CORE RECORDS>IONS; Southern Ocean; East Antarctica; West Antarctica; Dome Fuji; Antarc*; Antarctica; ice core; Ice Sheet; Sea ice
• Online Access: https://dx.doi.org/10.17592/001.2022081901; https://ads.nipr.ac.jp/dataset/A20220819-001

We reconstructed surface mass balance (SMB) around Dome Fuji, Antarctica, over the last 5000 years using the data from 15 shallow ice cores and 7 snow pits. The depth-age relationships for the ice cores were determined by synchronizing them with a layer-counted ice core from West Antarctica (WAIS Divide ice core) using volcanic signals. The reconstructed SMB records for the last 4000 years show spatial patterns that may be affected by their locations relative to the ice divides around Dome Fuji, proximity to the ocean, and wind direction. The SMB records from the individual ice cores and snow pits were stacked to reconstruct the SMB history in the Dome Fuji area. The stacked record exhibits a long-term decreasing trend at -0.037 kg m-2 per century over the last 5000 years in the preindustrial period. The decreasing trend may be the result of long-term surface cooling over East Antarctica and Southern Ocean, and sea-ice expansion in the water vapor source areas. The multidecadal to centennial variations of ...