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首页> 外文期刊>Nordic hydrology >Scottish snow cover dependence on the North Atlantic Oscillation index
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Scottish snow cover dependence on the North Atlantic Oscillation index

机译：苏格兰积雪对北大西洋涛动指数的依赖性

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摘要

Forecasting seasonal snow cover is useful for planning resources and mitigating natural hazards. We present a link between the North Atlantic Oscillation (NAO) index and days of snow cover in Scotland between winters beginning from 1875 to 2013. Using broad (5 km resolution), national scale data sets like UK Climate Projections 2009 (UKCP09) to extract nationwide patterns, we support these findings using hillslope scale data from the Snow Survey of Great Britain (SSGB). Currently collected snow cover data are considered using remotely sensed satellite observations, from moderate-resolution imaging spectroradiometer; but the results are inconclusive due to cloud. The strongest correlations between the NAO index and snow cover are found in eastern and southern Scotland; these results are supported by both SSGB and UKCP09 data. Correlations between NAO index and snow cover are negative with the strongest relationships found for elevations below 750 m. Four SSGB sites (two in eastern Scotland, two in southern Scotland) were modelled linearly with resulting slopes between -6 and -16 days of snow cover per NAO index integer value. This is the first time the relationship between NAO index and snow cover duration has been quantified and mapped in Scotland.
机译：预测季节性积雪有助于规划资源和减轻自然灾害。我们提出了北大西洋涛动指数（NAO）与1875年至2013年冬季之间苏格兰的积雪天数之间的联系。使用广泛的（5公里分辨率）国家级数据集，例如2009年英国气候预测（UKCP09）来提取在全国范围内，我们使用来自英国大雪调查（SSGB）的山坡规模数据来支持这些发现。使用来自中等分辨率成像分光辐射计的遥感卫星观测数据来考虑当前收集的积雪数据。但是由于云，结果尚无定论。在苏格兰东部和南部，发现NAO指数与积雪之间的相关性最强。 SSGB和UKCP09数据均支持这些结果。 NAO指数与积雪之间的相关性为负，对于海拔低于750 m的关系最强。线性模拟了四个SSGB站点（苏格兰东部两个，苏格兰南部两个），每个NAO指数整数值的积雪坡度在-6天和-16天之间。这是苏格兰首次对NAO指数与积雪持续时间之间的关系进行量化和制图。

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  • 来源
    《Nordic hydrology》 |2016年第3期|619-629|共11页
  • 作者

    Michael Spencer; Richard Essery;

  • 作者单位

    School of Geosciences, University of Edinburgh, Grant Institute, James Hutton Road, King's Buildings, Edinburgh EH9 3FE, UK;

    School of Geosciences, University of Edinburgh, Grant Institute, James Hutton Road, King's Buildings, Edinburgh EH9 3FE, UK;

  • 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

    climate; North Atlantic Oscillation; Scotland; snow;

    机译：气候;北大西洋涛动;苏格兰;雪;

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