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Studies on the variability of the Greenland Ice Sheet and climate

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Title: Studies on the variability of the Greenland Ice Sheet and climate
Authors: Goto-Azuma, Kumiko Browse this author
Homma, Tomoyuki Browse this author
Saruya, Tomotaka Browse this author
Nakazawa, Fumio Browse this author
Komuro, Yuki Browse this author
Nagatsuka, Naoko Browse this author
Hirabayashi, Motohiro Browse this author
Kondo, Yutaka Browse this author
Koike, Makoto Browse this author
Aoki, Teruo Browse this author
Greve, Ralf Browse this author →KAKEN DB
Okuno, Jun'ichi Browse this author
Keywords: Greenland Ice Sheet
Ice core
Surface mass balance
Flow law
Sea level change
Issue Date: Mar-2021
Publisher: Elsevier
Journal Title: Polar Science
Volume: 27
Start Page: 100557
Publisher DOI: 10.1016/j.polar.2020.100557
Abstract: We review major scientific results from Subtheme (1) "Variability of the Greenland Ice Sheet and climate" under Research Theme 2 "Variations in the ice sheet, glaciers, and the environment in the Greenland region" of the Arctic Challenge for Sustainability (ArCS) project. We participated in the international East Greenland Ice Core Project (EGRIP) led by Denmark, conducted snow pit observations near the coring site and reconstructed the surface mass balance over the past 10 years. Analyses of an ice core from Northwest Greenland revealed temporal variability in black carbon concentration over the past 350 years and in mineral dust over the past 100 years. To understand the mechanisms of ice-sheet flow, which is necessary for accurate predictions of sea level rise, we conducted laboratory experiments using artificial ice and derived an improved flow law for ice containing impurities. Ice sheet modeling was improved by including effects of impurities and ice stream dynamics. As part of the Ice Sheet Model Intercomparison Project for the Coupled Model Intercomparison Project Phase 6 (ISMIP6), we simulated ice sheet mass loss and contribution to sea level rise over the 21st century and beyond. Furthermore, we developed a Glacial Isostatic Adjustment model to better constrain ice sheet models.
Type: article
Appears in Collections:低温科学研究所 (Institute of Low Temperature Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: Greve Ralf

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