| Analysis on variation characteristics of temperature in Minqin during recent 50 years |
|
View Fulltext View/Add Comment Download reader |
| |
| DOI：10.7606/j.issn.1000-7601.2007.02.45 |
| Key Words: air temperature change method of mann-kendall Minqin |
| Author Name | Affiliation | | ZHANG Bao-jun | College of Earth and Environmental Sciences Lanzhou University,Lanzhou,Gansu 730000,China | | MA Jin-zhu | Key Laboratory of Western China’s Environmental Systems （Ministry of Education） Lanzhou University,Lanzhou,Gansu 730000,China | | ZHAO Xin | College of Earth and Environmental Sciences Lanzhou University,Lanzhou,Gansu 730000,China | | HUANG Tian-ming | College of Earth and Environmental Sciences Lanzhou University,Lanzhou,Gansu 730000,China |
|
| Hits: 1128 |
| Download times: 668 |
| Abstract: |
| Based on the temperature data in Minqin from 1956 to 2000,this paper analyses the inter-annual temperature variation trend for 45 years and their seasonal differences using non-parametrical method.The results indicate:(1) the annual average temperature in Minqin has been ascending since 1960s.The minimum of annual average temperature which was 6.5℃ emerged in 1967,and then the temperature went up unevenly.The temperature in 1990s was 1.2℃ higher than that in 1960s.(2) There were seasonal differences on variation of temperature.The temperature in Spring、Autumn and Winter was ascending and their temperature increases were significant at 0.05 level.The temperature contribution was large in winter,and then followed by autumn and spring.The contribution of summer to annual average temperature was the minimum;the reason was probably that the ascending temperature was counteracted by the much rainfall;more reasons were still to be discussed in the future.In addition,we also briefly analyze the reason of air temperature change in Minqin. |
|
|
|