Scopus记录号: 2-s2.0-85042358359
论文题名: Deciphering the contrasting climatic trends between the central Himalaya and Karakoram with 36 years of WRF simulations
作者: Norris J. ; Carvalho L.M.V. ; Jones C. ; Cannon F.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2019
卷: 52, 期: 2019-01-02 起始页码: 159
结束页码: 180
语种: 英语
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. 资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/122483
Appears in Collections: 气候变化事实与影响
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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
Recommended Citation:
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]. Climate Dynamics,2019-01-01,52(2019-01-02)