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 (1): 55-58.

• 论文 • 上一篇    下一篇

1961—2008年银川市灰霾天气的气候特征

刘玉兰1,2 梁培2 刘娟3 桑建人1,4   

  1. 1.宁夏回族自治区气象防灾减灾重点试验室,宁夏 银川 750002;2.宁夏回族自治区气象服务中心,宁夏 银川750002;3.银川市气象局,宁夏 银川 750002;4.宁夏回族自治区气候中心,宁夏 银川 750002
  • 出版日期:2012-02-28 发布日期:2012-02-28

Climatic characteristics of haze weather from 1961 to 2008 in Yinchuan

LIU Yu-lan1,2  LIANG Pei 2  LIU Juan3  SANG Jian-ren1,4   

  1. 1. Ningxia Key Laboratory of Meteorological Disaster Prevention and Reduction, Yinchuan 750002, China; 2. Ningxia Meteorological Services Center, Yinchuan 750002, China; 3. Yinchuan Meteorological Service, Yinchuan 750002, China; 4. Ningxia Climatic Center, Yinchuan 750002, China
  • Online:2012-02-28 Published:2012-02-28

摘要: 对1961—2008年银川市灰霾天气出现日数资料进行分析。结果表明:银川市灰霾天气呈逐渐增加的趋势,20世纪80年代前为缓慢增加阶段,20世纪80年代后灰霾天气显著增加,2000年后灰霾天气急剧增加。银川市灰霾日数最多为12月份,其次为11月份,最少为5月份,呈现出冬季最大,夏季最小,秋季大于春季的季节特征。一般情况下,银川市灰霾日数持续1—3d,持续2d及以上的灰霾天气过程占17%,持续5d及以上的灰霾天气占1%。持续时间较长的灰霾天气集中出现在冬季的11月至翌年2月。灰霾天气持续时间也与年代际变化有关,2000年前,银川未出现持续5天以上的灰霾天气过程;2000年后,随着灰霾天气出现日数增多,灰霾持续时间延长。

关键词: 银川市, 灰霾天气, 气候特征

Abstract: Based on the observational data from 1961 to 2008 in Yinchuan, the days of haze weather were analyzed. The results indicate that the days of haze weather are in increasing trends. They increase slowly before 1980s, significantly after 1980s and sharply after 2000. The days of haze weather appear frequently in December, then in November, and least in May, namely, winter > autumn > spring > summer. In general, the duration of haze weather is 1-3 days. 17% haze weather could last 2 days or more, while 1% haze weather could last 5 days or more. The persistent haze weather concentrates from November to February. The haze weather duration is related to its annual change. The haze weather persisting 5 days or more never occurs before 2000 in Yinchuan, while the haze duration extends with the increase of haze days after 2000.

Key words: Yinchuan, Haze weather, Climatic characteristics