气候变化领域集成服务门户(CCPortal): Deciphering the contrasting climatic trends between the central Himalaya and Karakoram with 36 years of WRF simulations

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DOI	10.1007/s00382-018-4133-3
	Deciphering the contrasting climatic trends between the central Himalaya and Karakoram with 36 years of WRF simulations
	Norris J.; Carvalho L.M.V.; Jones C.; Cannon F.
发表日期	2019
ISSN	0930-7575
起始页码	159
结束页码	180
卷号	52 期号:2020-01-02
英文摘要	Glaciers over the central Himalaya have retreated at particularly rapid rates in recent decades, while glacier mass in the Karakoram appears stable. To address the meteorological factors associated with this contrast, 36 years of Climate Forecast System Reanalyses (CFSR) are dynamically downscaled from 1979 to 2015 with the Weather Research and Forecasting (WRF) model over High Mountain Asia at convection permitting grid spacing (6.7 km). In all seasons, CFSR shows an anti-cyclonic warming trend over the majority of High Mountain Asia, but distinctive differences are observed between the central Himalaya and Karakoram in winter and summer. In winter and summer, the central Himalaya has been under the influence of an anti-cyclonic trend, which in summer the downscaling shows has reduced cloud cover, leading to significant warming and reduced snowfall in recent years. Contrastingly, the Karakoram has been near the boundary between large-scale cyclonic and anti-cyclonic trends and has not experienced significant snowfall or temperature changes in winter or summer, despite significant trends in summer of increasing cloud cover and decreasing shortwave radiation. This downscaling does not identify any trends over glaciers in closer neighboring regions to the Karakoram (e.g., Hindu Kush and the western Himalaya) where glaciers have retreated as over the central Himalaya, indicating that there are other factors driving glacier mass balance that this downscaling is unable to capture. While this study does not fully explain the Karakoram anomaly, the identified trends detail important meteorological contributions to the observed differences between central Himalaya and Karakoram glacier evolution in recent decades. © 2018, Springer-Verlag GmbH Germany, part of Springer Nature.
语种	英语
scopus关键词	cloud cover; glacier mass balance; mountain region; shortwave radiation; summer; trend analysis; weather forecasting; winter; Himalayas; Karakoram
来源期刊	Climate Dynamics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/146640
作者单位	Earth Research Institute, University of California Santa Barbara, Santa Barbara, CA 93106, United States; Department of Geography, University of California Santa Barbara, Santa Barbara, CA 93106, United States; Atmospheric and Oceanic Sciences, University of California Los Angeles, Los Angeles, CA 90095, United States; Scripps Institution of Oceanography, University of California San Diego, San Diego, CA 92093, United States
推荐引用方式 GB/T 7714	Norris J.,Carvalho L.M.V.,Jones C.,et al. Deciphering the contrasting climatic trends between the central Himalaya and Karakoram with 36 years of WRF simulations[J],2019,52(2020-01-02).
APA	Norris J.,Carvalho L.M.V.,Jones C.,&Cannon F..(2019).Deciphering the contrasting climatic trends between the central Himalaya and Karakoram with 36 years of WRF simulations.Climate Dynamics,52(2020-01-02).
MLA	Norris J.,et al."Deciphering the contrasting climatic trends between the central Himalaya and Karakoram with 36 years of WRF simulations".Climate Dynamics 52.2020-01-02(2019).