| Analysis of different dryness／wetness index in Northwest China |
|
View Fulltext View/Add Comment Download reader |
| |
| DOI：10.7606/j.issn.1000-7601.2009.05.02 |
| Key Words: PDSI index Z index Northwest China analysis of drought |
| Author Name | Affiliation | | TANG Hongyu | Institute of Arid Meteorology China Meteorological Administration, Lanzhou, Gansu 730001, China ；Qinghai Cli mate Center,Xining, Qinghai 810001, China | | WANG Zhiwei | Qinghai Meteorological Observatory,Xining, Qinghai 810001, China | | SHI Jinmei | Shanxi Satellite Remote-Sensing Center for Reducing Disasters, Taiyuan, Shanxi 030002, China | | YANG Xingguo | Institute of Arid Meteorology China Meteorological Administration, Lanzhou, Gansu 730001, China |
|
| Hits: 761 |
| Download times: 556 |
| Abstract: |
| Based on analysis of the meteorological data at 137 meteorological stations in Northwest China from 1961 to 2003, the corrected Palmer drought severity index (PDSI) and Z index were calculated and analyzed.The results showed that the Z index was more condign than PDSI in monsoon, while the PDSI is more objective and hypersensitive in comparison with Z index in dryness monitoring in the Northwest.The PDSI is more hypersensitive in light dryness monitoring in the Northwest, but the Z index is more hypersensitive in grievous dryness.The PDSI and the Z index were uniform in medium dryness. |
|
|
|