The Accumulated Winter Season Severity Index (AWSSI)
The Accumulated Winter Season Severity Index (AWSSI)
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DOI：
10.1175/jamc-d-14-0217.1
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发表时间：
2015-08-01
影响因子：
3
通讯作者：
Hubbard, Kenneth G.
中科院分区：
文献类型：
--
作者：
Boustead, Barbara E. Mayes;Hilberg, Steven D.;Hubbard, Kenneth G.
冬季的特征可以通过其许多特征来定义，包括平均气温和极端气温、降雪总量、雪深以及冬季天气条件开始和停止之间的持续时间。累积的冬季严酷指数将这些要素纳入一个特定地点的值，该值定义了特定冬季的严酷程度，特别是在该地点的气候值背景下进行检查时。温度、降雪量和雪深的数值被指定为通过定义的冬季积累的点;一个平行的指数使用温度和降水量来提供雪数据不可用或不可靠的雪代理。结果可以像任何其他气象参数一样进行分析，以检查与遥相关模式的关系，确定趋势，并创建特定于部门的应用程序，以及分析正在进行的冬季或任何单个冬季，以将其严重程度置于上下文中。
The character of a winter can be defined by many of its features, including temperature averages and extremes, snowfall totals, snow depth, and the duration between onset and cessation of winter-weather conditions. The accumulated winter season severity index incorporates these elements into one site-specific value that defines the severity of a particular winter, especially when examined in the context of climatological values for that site. Thresholds of temperature, snowfall, and snow depth are assigned points that accumulate through the defined winter season; a parallel index uses temperature and precipitation to provide a snow proxy where snow data are unavailable or unreliable. The results can be analyzed like any other meteorological parameter to examine relationships to teleconnection patterns, determine trends, and create sector-specific applications, as well as to analyze an ongoing winter or any individual winter season to place its severity in context.