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An evaluation of Norwegian snow maps: simulation results versus observations

机译：挪威雪图评估：模拟结果与观测值

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摘要

The snow map service introduced by the Norwegian Meteorological Institute and Norwegian Water Resources and Energy Directorate in 2004 is evaluated at eleven meteorological stations situated in three regions in Norway. The focus is on the start and end of the snow season and the total number of snow days, In addition, accumulated snow depth throughout the winter season, along with snow depth on four selected dates, is examined. In the evaluation, simulations by a precipitation/degree-day snow model are compared to observations. The approach used to calculate snow depth tends to compact the snow too much, resulting in an underestimation of snow depth at most stations. In Region 1 the snow model simulates a shorter snow season than what is observed. In Region 2 the results are ambiguous and correlations between simulations and observations are low. In Region 3, however, the snow model performs very well, and there are no significant differences between simulated and observed snow season. The results confirm that the use of snow simulations in areas outside the observational network is valuable, but there is room for improvement.
机译：挪威气象局和挪威水资源与能源局于2004年推出的降雪图服务在位于挪威三个地区的11个气象站进行了评估。重点是下雪季节的开始和结束以及下雪天的总数。此外，还检查了整个冬季的积雪深度以及四个选定日期的积雪深度。在评估中，将降水/日积雪模型的模拟与观测结果进行了比较。用于计算积雪深度的方法往往会使积雪过多，从而导致大多数站点的积雪深度被低估。在区域1中，雪模型模拟的雪季比观察到的短。在区域2中，结果是模棱两可的，模拟和观测值之间的相关性很低。但是，在3区，雪模型的效果非常好，模拟雪季和观测雪季之间没有显着差异。结果证实，在观测网络以外的地区使用降雪模拟是有价值的，但仍有改进的空间。

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  • 来源
    《Nordic hydrology》 |2010年第1期|27-37|共11页
  • 作者

    Anita Verpe Dyrrdal;

  • 作者单位

    The Norwegian Meteorological Institute,Boks 43 Blindern,Oslo 0313,Norway;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    norway; snow maps; snow model; snow season;

    机译：挪威;雪图;雪模型雪季;

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