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Projected sea level rise, gyre circulation and water mass formation in the western North Pacific: CMIP5 inter-model analysis

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/74531

Title: Projected sea level rise, gyre circulation and water mass formation in the western North Pacific: CMIP5 inter-model analysis
Authors: Terada, Mio Browse this author
Minobe, Shoshiro Browse this author →KAKEN DB
Keywords: Dynamic sea level
CMIP5 climate models
Western North Pacific
Kuroshio Extension
Subtropical mode water
Global warming
Issue Date: Jun-2018
Publisher: Springer
Journal Title: Climate dynamics
Volume: 50
Issue: 11-12
Start Page: 4767
End Page: 4782
Publisher DOI: 10.1007/s00382-017-3902-8
Abstract: Future changes in the dynamic sea level (DSL), which is defined as sea-level deviation from the global mean sea level, is investigated over the North Pacific, by analyzing data from the Coupled Model Intercomparison Project Phase 5. The analysis provides more comprehensive descriptions of DSL responses to the global warming in this region than available from previous studies, by using surface and subsurface data until the year 2300 under middle and high greenhouse-gas emission scenarios. The DSL changes in the North Pacific are characterized by a DSL rise in the western North Pacific around the Kuroshio Extension (KE), as also reported by previous studies. Subsurface density analysis indicates that DSL rise around the KE is associated with decrease in density of subtropical mode water (STMW) and with northward KE migration, the former (latter) of which is relatively strong between 2000 and 2100 for both RCP4.5 and RCP8.5 (between 2100 and 2300 for RCP8.5). The STMW density decrease is related to large heat uptake to the south and southeast of Japan, while the northward KE migration is associated with the poleward shift of the wind stress field. These features are commonly found in multi-model ensemble means and the relations among representative quantities produced by different climate models.
Rights: The final publication is available at link.springer.com
Type: article (author version)
URI: http://hdl.handle.net/2115/74531
Appears in Collections:理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 見延 庄士郎

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