Global Summary of the Month (GSOM), Version 1

This Global Summaries dataset, known as GSOM for Monthly, contains a monthly resolution of meteorological elements from 1763 to present with updates applied weekly. The major parameters are: monthly mean maximum, mean minimum and mean temperatures; monthly total precipitation and snowfall; departure from normal of the mean temperature and total precipitation; monthly heating and cooling degree days; number of days that temperatures and precipitation are above or below certain thresholds; extreme daily temperature and precipitation amounts; number of days with fog; and number of days with thunderstorms. The primary input data source is the Global Historical Climatology Network - Daily (GHCN-Daily) dataset. The Global Summaries datasets also include a yearly resolution of meteorological elements in the GSOY (for Yearly) dataset. See associated resources for more information. These datasets are not to be confused with "GHCN-Monthly", "Annual Summaries" or "NCDC Summary of the Month". There are unique elements that are produced globally within the GSOM and GSOY data files. There are also bias corrected temperature data in GHCN-Monthly, which are not available in GSOM and GSOY. The GSOM and GSOY datasets replace the legacy U.S. COOP Summaries (DSI-3220), and have been expanded to include non-U.S. (global) stations. U.S. COOP Summaries (DSI-3220) only includes National Weather Service (NWS) COOP Published, or "Published in CD", sites.

本全球概要数据集，简称GSOM（月度），收录了自1763年至今的月度气象要素，并实施每周更新。主要参数包括：月平均最高、平均最低及平均气温；月总降水量及降雪量；平均气温及总降水量的正常值偏离度；月度供暖及制冷度日数；温度及降水量高于或低于特定阈值的日数；极端日温度及降水量；大雾日数；以及雷暴日数。主要数据来源为全球历史气候学网络每日数据集（GHCN-Daily）。全球概要数据集还包括GSOY（年度）数据集中的年度分辨率气象要素。有关更多信息，请参阅相关资源。这些数据集不应与“GHCN-Monthly”、“年度概要”或“NCDC月度概要”混淆。GSOM和GSOY数据文件中包含全球范围内产生的独特要素。GHCN-Monthly中还包含偏差校正的气温数据，而在GSOM和GSOY中则不可得。GSOM和GSOY数据集取代了传统的美国COOP概要数据集（DSI-3220），并扩展至包括非美国（全球）站点。美国COOP概要数据集（DSI-3220）仅包括国家气象服务（NWS）COOP发布站点，或称为“CD上发布”的站点。