DOI: 10.1175/JCLI-D-14-00763.1
Scopus记录号: 2-s2.0-84980395733
论文题名: An oceanic impact of the Kuroshio on surface air temperature on the Pacific coast of Japan in summer: Regional H2O greenhouse gas effect
作者: Takahashi H.G. ; Adachi S.A. ; Sato T. ; Hara M. ; Ma X. ; Kimura F.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2015
卷: 28, 期: 18 起始页码: 7128
结束页码: 7144
语种: 英语
Scopus关键词: Atmospheric thermodynamics
; Climate change
; Climate models
; Greenhouse effect
; Greenhouse gases
; Heat flux
; Ocean currents
; Oceanography
; Submarine geophysics
; Surface properties
; Surface waters
; Temperature distribution
; Water vapor
; Atmosphere-ocean interactions
; Climate variability
; Long-wave radiation
; Regional model
; Sea surface temperature (SST)
; Atmospheric temperature
; air temperature
; air-sea interaction
; annual variation
; climate modeling
; climate variation
; greenhouse effect
; hydrogen
; longwave radiation
; sea surface temperature
; summer
; water vapor
; Japan
; Kuroshio Region
; Pacific Coast [Japan]
; Pacific Ocean
英文摘要: This study used a 4-km resolution regional climate model to examine the sensitivity of surface air temperature on the Pacific coast of Japan to sea surface temperature (SST) south of the Pacific coast of Japan during summer. The authors performed a control simulation (CTL) driven by reanalysis and observational SST datasets. A series of sensitivity experiments using climatological values from the CTL SST datasets over a 31-yr period was conducted. The interannual variation in surface air temperature over the Pacific coast was well simulated in CTL. The interannual variation in SST over the Kuroshio region amplified the interannual variation in surface air temperature over the Pacific coast. It was found that 30% of the total variance of interannual variation in surface air temperature can be controlled by interannual variation in SST. The calculated surface air temperature on the Pacific coast increased by 0.4 K per 1-K SST warming in the Kuroshio region. Note that this sensitivity was considerably greater during nighttime than during daytime. Concurrent with the warming in surface air temperature, downward longwave radiation at the surface was also increased. In summer, the increase in latent heat flux was considerably larger than that in sensible heat flux over the ocean because of SST warming, according to the temperature dependence of the Bowen ratio. This implies that the primary factor for the increase in surface air temperature in summer is increased moisture in the lower troposphere, indicating that the regional warming was caused by an increase in H2O greenhouse gas. © 2015 American Meteorological Society. 资助项目: MEXT, Ministry of Education, Culture, Sports, Science, and Technology
; MOE, Ministry of the Environment
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/50376
Appears in Collections: 气候变化事实与影响
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作者单位: Tokyo Metropolitan University, Tokyo, Japan; Japan Agency for Marine-Earth Science and Technology, Yokohama, Japan; Advanced Institute for Computational Science, RIKEN, Kobe, Japan; Faculty of Environmental Earth Science, Hokkaido University, Sapporo, Japan; Center for Environmental Science in Saitama, Kazo, Saitama, Japan
Recommended Citation:
Takahashi H.G.,Adachi S.A.,Sato T.,et al. An oceanic impact of the Kuroshio on surface air temperature on the Pacific coast of Japan in summer: Regional H2O greenhouse gas effect[J]. Journal of Climate,2015-01-01,28(18)