| 近46年来昆明市日照变化特征分析 |
| |
| 引用本文： | 龙红,谢国清,李蒙,张茂松.近46年来昆明市日照变化特征分析[J].云南地理环境研究,2009,21(4):101-105. |
| |
| 作者姓名： | 龙红 谢国清 李蒙 张茂松 |
| |
| 作者单位： | 1. 云南大学,大气科学系,云南,昆明,650091;云南省气候中心,云南,昆明,650034
2. 云南省气候中心,云南,昆明,650034 |
| |
| 摘 要： | 分析了昆明市1961~2006年日照时数变化特征及与日照百分率、总云量、低云量、水汽压和地面定时能见度之间的关系。结果表明：日照时数呈减少趋势,日照时数的减少幅度为115 h/10 a,其中又以春、夏季减少最快。年日照时数存在突变现象,突变点在1980年。日照百分率与日照时数变化趋势相一致。年低云量、总云量、水汽压略呈增加趋势,总云量和水汽压与日照时数变化呈显著的负相关,是昆明市日照时数减少的主要因素。地面能见度呈下降趋势,表明大气气溶胶含量上升,影响日照时数变化,但不是主要因素。
|
| 关 键 词： | 昆明市 日照变化 特征分析 |
THE ANALYSIS OF VARIATION CHARACTERISTICS OF SUNSHINE IN THE RECENT 46 YEARS IN KUNMING |
| |
| LONG Hong,XIE Quo-qing,LI Meng,ZHANG Mao-song.THE ANALYSIS OF VARIATION CHARACTERISTICS OF SUNSHINE IN THE RECENT 46 YEARS IN KUNMING[J].Yunnan Geographic Environment Research,2009,21(4):101-105. |
| |
| Authors: | LONG Hong XIE Quo-qing LI Meng ZHANG Mao-song |
| |
| Institution: | LONG Hong, XIE Quo-qing, LI Meng, ZHANG Mao-song(1. Institute of Resources and Environment Management in Yunnan University, Kunming 650034, Yunnan, China 2. Yunnan Climate Center, Kunming 650034, Yunnan, China) |
| |
| Abstract: | The variation characteristics of sunshinehours and the relation between sunshine hours and relative sunshine, total cloudiness, lower cloudines, water vapor pressure and visibility from 1961 to 2006 in Kunming City are analyzed. The results show： sunshine hours has greatly decreased in the recent 46 years, with the breadth of 115 h/10 a and decreased fastest in spring and summer. The mutation of sunshine hours occurred in1980. Relative sunshine and sunshine hours are in line with changing trends. Lower cloudines, total cloudiness and water vapor pressure are slightly increasing trend. The significantly negative correlation exits between sunshine hours and total cloud cover, water vapor pressure which are the major factors that make sunshine hours reduce. Visibility drop, which show that increases in atmospheric aerosols and effect sunshine hours. |
| |
| Keywords: | Kunming sunshine variation characteristics analys |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
