主办单位:中国气象局沈阳大气环境研究所
国际刊号:ISSN 1673-503X
国内刊号:CN 21-1531/P

气象与环境学报 ›› 2012, Vol. 28 ›› Issue (2): 34-39.doi:

• 论文 • 上一篇    下一篇

1962—2008年辽宁省积雪变化特征

严晓瑜 赵春雨2,3 任国玉3 王颖2   

  1. 1.宁夏气象服务中心,宁夏 银川 750000;2. 沈阳区域气候中心,辽宁 沈阳 110016;3.中国气象局气候研究开放实验室,北京 100081
  • 出版日期:2012-04-30 发布日期:2012-04-30

Characteristics of snow cover from 1962 to 2008 in Liaoning province

YAN Xiao-yu1 ZHAO Chun-yu2,3 REN Guo-yu3 WANG Ying2   

  1. 1. Ningxia Meteorological Service Center, Yinchuan 75000, China; 2. Regional Climate Center of Shenyang, Shenyang 110016, China; 3. Laboratory for Climate Studies, China Meteorological Administration, Beijing 100081, China
  • Online:2012-04-30 Published:2012-04-30

摘要: 采用1962—2008年辽宁省52个气象观测站逐日积雪深度以及同期温度、降水资料,用统计方法和小波方法分析了辽宁省积雪气候变化规律。结果表明:近47 a辽宁省积雪日数呈不显著增加趋势,共增加了3 d;年最大雪深随时间变化呈不明显增加趋势,平均每10 a增加0.2 cm;年累积雪深也呈不显著增加趋势,气候倾向率为8.9 cm/10 a。从年代际变化来看,20世纪80年代前辽宁省积雪日数、年最大雪深和年累积雪深偏小;而20世纪80年代后至今,则经历了一个积雪日数、年最大雪深和年累积雪深均增加的过程。

关键词: 积雪日数, 年最大雪深, 年累积雪深, 辽宁

Abstract: Based on the daily snow cover depth, temperature and precipitation at 52 weather stations from 1962 to 2008, the characteristics of snow cover variation were analyzed using methods of a statistics and a wavelet analysis. The results indicated that the increasing trend of annual snow cover days is not significant and it only increases 3 d from 1962 to 2008. The increasing trend of annual maximum snow cover depth is also not significant with 0.2 cm/decade, so is that of annual cumulative snow cover depth with 8.9 cm/decade. The number of snow cover days, annual maximum snow cover depth and annual cumulative snow cover depth are all relatively small before 1980s in terms of their inter-decadal variations, while they all increase after 1980s.

Key words: Number of snow cover day, Annual maximum snow cover depth, Annual accumulative snow cover depth, Liaoning province