Comparison of a land surface model and Palmer drought severity index in monitoring drought in China

Author

Zhang Liang ; Zhang Huqiang ; Zhang Qiang ; Wang Jing

Author_Institution

Key Lab. of Arid Climatic Change & Reducing Disaster of Gansu Province, Lanzhou Inst. of Arid Meteorol., Lanzhou, China

fYear

2011

fDate

24-29 July 2011

Firstpage

1985

Lastpage

1988

Abstract

One kind of good drought monitoring technology (DMT) can help to detect and characterize drought conditions, and reduce adverse drought impacts. We evaluate how a DMT for China, based on a land surface model, would perform. The land surface model current soil moisture, runoff and evaporation. The DMT incorporates the Palmer drought severity index (PDSI) and soil moisture deciles taken from the LSM. We construct the drought event (1972). We also compare soil moisture based on model result with PDSI in different parts of China. Our results show that LSM can be used in drought monitoring in China and can provide information about drought conditions for different water users.

Keywords

hydrological techniques; hydrology; soil; AD 1972; China; Palmer drought severity index; drought conditions; drought event; drought impacts; drought monitoring technology; land surface model; soil moisture; water users; Atmospheric modeling; Biological system modeling; Land surface; Meteorology; Monitoring; Soil moisture; Surface treatment; Deciles; Drought; Land Surface Model; Palmer Drought Severity Index (PDSI);

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium (IGARSS), 2011 IEEE International

Conference_Location

Vancouver, BC

ISSN

2153-6996

Print_ISBN

978-1-4577-1003-2

Type

conf

DOI

10.1109/IGARSS.2011.6049517

Filename

6049517