Snow distribution over the Namco lake area of the Tibetan Plateau

Snow distribution over the Namco lake area of the Tibetan Plateau
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青藏高原纳木错湖区积雪分布

DOI:
10.5194/hess-13-2023-2009
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发表时间:
2009-11
期刊:
Hydrol. Earth Syst. Sci.
影响因子:
--
通讯作者:
Zeyong Hu
Zeyong Hu
中科院分区:
其他
文献类型:
--
作者:
H. Ishikawa;Yaoming Ma;Y. Oku;Maoshan Li;Zeyong Hu

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抽象的。本文对2005年10月青藏高原纳木错湖区的中尺度积雪分布进行了调查。基础实验和修改后的实验是使用天气研究模型 (WRF) 进行的,该模型具有三个嵌套网格,其中包括以 Namco 站为中心的 1 公里最细网格。我们的模拟从2005年10月6日持续到10月10日,与长期气象观测同时进行。对边界层气象塔测量和通量观测的评估表明,该模型在修订后的实验中相当好地捕获了观测到的 2 m 温度和 10 m 风。结果表明,两个模拟实验的输出雪深最大量集中在纳木错湖岸的顺风处。修改表面状态变量,例如湖面上的表面温度,有助于提高模拟的可信度。
Abstract. The mesoscale snow distribution over the Namco lake area of the Tibetan Plateau on October 2005 has been investigated in this paper. The base and revised experiments were conducted using the Weather Research Model (WRF) with three nested grids that included a 1 km finest grid centered on the Namco station. Our simulation ran from 6 October through to 10 October 2005, which was concurrent with long term meteorological observations. Evaluation against boundary layer meteorological tower measurements and flux observations showed that the model captured the observed 2 m temperature and 10 m winds reasonably well in the revised experiment. The results suggest that output snow depth maximum amounts from two simulated experiments were centered downwind of the Namco lakeshore. Modified surface state variable, for example, surface skin temperature on the lake help to increase simulated credibility.
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