华北农牧交错带冬季降雪时空变化数据集(1961/62–2011/12)研发及特征分析  

Dataset Development and Analysis of Snowfall in the Agro-Pastoral Zig-zag Region of North China(1961/62–2011/12)

作　　者：何丽烨[1] 王冀[2] 黄鹤[1] 郭军[1] He,L.Y.;Wang,J.;Huang,H.;Guo,J.(Tianjin Climate Center,Tianjin 300074,China;Beijing Climate Center,Beijing 100089,China)

机构地区：[1]天津市气候中心,天津300074 [2]北京市气候中心,北京100089

出　　处：《全球变化数据学报(中英文)》2024年第3期303-310,V0303-V0310,共16页Journal of Global Change Data & Discovery

摘　　要：华北农牧交错带冬季降雪时空变化数据集(1961/62–2011/12)是在位于中国华北农牧交错带的284个地面气象台站半个世纪以来的降水记录基础上,根据气温阈值判别指标分析统计得到。地理区域覆盖了北京、天津、河北、山西和内蒙古五个省(市/自治区),时间范围为1961年11月至2012年2月冬季(冬季指当年11月至次年2月,下同),数据内容包括:冬季多年月平均降雪量(1月、2月、11月、12月)数据,冬季年降雪总量数据,小雪、中雪、大雪及以上三个量级逐年降雪量数据。该数据集以.xlsx格式存储,数据量394 KB。结果表明:华北农牧交错带的年平均降雪日数高值区主要位于内蒙古东北部至中部一带,两个冬季降雪量高值中心分别位于内蒙古东北部和山西南部至太行山南麓,这51年来华北农牧交错带冬季降雪量的增加主要是由于大雪及以上量级降雪量增加造成的。He,L.Y.;Wang,J.;Huang,H.;Guo,J.;Tianjin Climate Center;Beijing Climate Center;The temporal-spatial dataset of snowfall in the agro-pastoral zig-zag region of North China(1961/62–2011/12)was derived from half a century of precipitation records from the 284 meteorological stations located in North China.The dataset is based on temperature threshold indicators.The stations are located at Beijing City,Tianjin City,Hebei Province,Shanxi Province and the Inner Mongolia Autonomous Region.The data covers the winter months from November of the current year to February in the following year from November 1961 to February 2012.The items of the dataset are:monthly mean snowfall in January,February,November and December;annually snowfall,annual snowfall in light snow,moderate snow and heavy snow.The data is archived in.xlsx format with data size of 394 KB.The data result indicates that the high value areas for annual average snowfall days in the agro-pastoral zig-zag region zone of North China are primarily located from the northeastern to the central regions of Inner Mongolia.Two high value centers for winter snowfall amounts are found in northeastern Inner Mongolia and from southern Shanxi to the southern foothills of the Taihang Mountains.Over the past 51 years,the increase in winter snowfall amounts in the agro-pastoral zig-zag region of North China is mainly attributed to the rise in heavy snowfall and above.

关 键 词：降雪 华北 农牧交错带 气温阈值 时空变化 

分 类 号：P426.63[天文地球—大气科学及气象学]