近39年喀什日照时数变化分析

干旱区研究 ›› 2011, Vol. 28 ›› Issue (1): 158-162.

近39年喀什日照时数变化分析

杨霞¹, 蔡梅², 赵逸舟³, 张云惠¹, 罗昂⁴, 江远安³

1. 新疆气象台, 新疆乌鲁木齐 830002;
2. 新疆信息工程学校, 新疆乌鲁木齐 830002;
3. 新疆气候中心, 新疆乌鲁木齐 830002;
4. 喀什地区气象局, 新疆喀什843305

收稿日期:2009-09-24 修回日期:2010-08-31 出版日期:2011-02-25 发布日期:2011-09-06
作者简介:杨霞(1980-),女,甘肃武威人,硕士,现从事中短期天气预报工作.E-mail:Yangxia921@163.com
基金资助:
科技部科技支撑计划项目"北方农业低温冷害监测预警技术研究"(2006BAD04B02);新疆维吾尔自治区气象局业务新技术项目(YX200808)

Analysis on the Change of Sunshine Duration in Kashgar,Xinjiang in Recent 39 Years

YANG Xia¹, CAI Mei², ZHAO Yi-zhou³, ZHANG Yun-hui¹, LUO Ang⁴, JIANG Yuan-an³

1. Xinjiang Meteorological Observatory, Urumqi 830002, China;
2. Xinjiang Information Engineering School, Urumqi 830002, China;
3. Xinjiang Climate Center, Urumqi 830002, China;
4. Kashgar Meteorological Bureau, Kashgar 843305, Xinjiang, China

Received:2009-09-24 Revised:2010-08-31 Published:2011-02-25 Online:2011-09-06

摘要/Abstract

摘要： 利用喀什1970-2008年日照时数、浮尘、扬沙、沙尘暴日数等资料,对该地区日照时数的变化及其可能影响进行分析。结果表明:喀什年日照时数呈显著增加趋势,年际变化较大,存在明显的季节差异。20世纪70年代喀什年日照时数变化不大,80年代异常偏少,90年代略偏少,2000-2008年日照时数异常偏多。喀什年日照时数存在准28年变化周期,在1997年发生了突变。浮尘日数显著减少是造成喀什年日照时数、春季和夏季日照时数显著增加的主要原因之一,沙尘暴、扬沙不是影响喀什日照时数变化的主要因子。

关键词: 日照时数, 浮尘, 扬沙, 沙尘暴, 年际变化, 喀什, 新疆

Abstract: In this paper, the change of sunshine duration and its affecting factors are analyzed based on the data of sunshine duration and occurring days of blowing dust, floating dust and sandstorm in Kashgar, Xinjiang during the period 1970-2008. The results show that the sunshine duration was increased notably in recent 39 years. There were the significant seasonal and annual variations of sunshine duration. The sunshine duration was changed insignificantly in the 1970s, sharply decreased in the 1980s, slightly decreased in the 1990s, but sharply increased during the period of 2000-2008. There was a 28-year periodic change of sunshine duration in Kashgar, and also a 25-year one in recent 39 years. An abrupt change of sunshine duration occurred in 1997. The significant increase of annual, spring and summer sunshine durations was mainly caused by the obvious reduction of floating dust, however sandstorm and blowing dust were not the main factors affecting the sunshine duration in Kashgar.

Key words: sunshine duration, floating dust, blowing dust, sand storm, Kashgar, Xinjiang

中图分类号:

P422.11

杨霞, 蔡梅, 赵逸舟, 张云惠, 罗昂, 江远安. 近39年喀什日照时数变化分析[J]. 干旱区研究, 2011, 28(1): 158-162.

YANG Xia, CAI Mei, ZHAO Yi-zhou, ZHANG Yun-hui, LUO Ang, JIANG Yuan-an. Analysis on the Change of Sunshine Duration in Kashgar,Xinjiang in Recent 39 Years[J]. , 2011, 28(1): 158-162.

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