A Climatology of Snow-to-Liquid Ratio for the Contiguous United States
A Climatology of Snow-to-Liquid Ratio for the Contiguous United States
复制标题
美国本土雪水比气候学
DOI：
10.1175/waf856.1
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发表时间：
2005
影响因子：
2.9
通讯作者：
James T. Moore
中科院分区：
文献类型：
--
作者：
Martin A. Baxter;C. Graves;James T. Moore
利用美国国家气象局（NWS）合作日摘要（COOP）资料，对30年来的雪-液体当量比（SLR）进行了气候学分析。描述性统计96 NWS县警戒区（CWA），沿着讨论选定的直方图的兴趣。气候学的结果表明，平均SLR值为13似乎更适合于该国大部分地区，而不是经常假设的值10，尽管平均值存在相当大的空间差异。整个数据集的分布呈现正偏态。根据云内、云下和地面条件的变化，单个CWAs的直方图既有正偏也有负偏。
A 30-yr climatology of the snow-to-liquid-equivalent ratio (SLR) using the National Weather Service (NWS) Cooperative Summary of the Day (COOP) data is presented. Descriptive statistics are presented for 96 NWS county warning areas (CWAs), along with a discussion of selected histograms of interest. The results of the climatology indicate that a mean SLR value of 13 appears more appropriate for much of the country rather than the often-assumed value of 10, although considerable spatial variation in the mean exists. The distribution for the entire dataset exhibits positive skewness. Histograms for individual CWAs are both positively and negatively skewed, depending upon the variability of the in-cloud, subcloud, and ground conditions.