|
|
|
| Analysis of Drift Potential in Xinjiang in Recent 40 Years |
| LI Hong-jun, HE Qin, YANG Qin |
| Institute of Desert Meteorology, Chinese Meteorology Administration, Urumqi 830002, China |
|
|
|
|
Abstract Based on the data of wind from 100 meteorological observation stations in recent 40 years, the paper analyzed the temporal and spatial distribution characteristics of resultant drift potential in Xinjiang. The following viewpoints were obtained:①The regions with high wind power in windward area are more than that in leeward area in Xinjiang. The resultant drift potential(RDP) is higher in east of Xinjiang, and in west, northwest of northern Xinjiang, but lower in west and southwest of southern Xinjiang; generally, that in Northern Xinjiang is higher than that in Southern Xinjiang. ②The seasonal and annual RDP decreased wavily since the end of 1970s in Northern Xinjiang; Whereas, they reached the maximum in 1960s and 1970s in Southern Xinjiang, then decreased wavily until 1998, abruptly they all increased rapidly since 1998. All in all whether in Northern Xinjiang or in Southern Xinjiang the RDP is maximum in spring, second in summer, and minimum in winter; maximum in 1970s, second in 1960s, and minimum in 1990s. ③The value of RDP/DP is higher in east, southwest and northwest of Southern Xinjiang, but lower in middle and west of Southern Xinjiang; From east region to west region its direction changes from near west, southwest to near east, southeast. The value of RDP/DP is higher in east of northern Xinjiang; it is between 0.6 and 0.7 in its middle region and in the northern plain of Tianshan Mountains; there are two low centers of RDP/DP in west and northwest of northern Xinjiang; the RDP/DP value is between 0.7 and 0.8 in northeast of northern Xinjiang. The direction of RDP is mostly in near east and southeast in northern Xinjiang.
|
|
Received: 16 June 2003
Published: 20 December 2004
|
|
|
| No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
2004, Vol. 24 
