Services System Development and Application of Drought Monitoring and Early Warning and Evaluation over Northwest China

FANG Feng1,2,LIANG Dong-sheng1,2,ZHANG Cun-jie1,2(1.Institute of Lanzhou Arid Meteorology of the China Meteorological Administration,Key Laboratory ofArid Climate Change and Reducing Disaster of Gansu Province,and Key Open Laboratory of Climatic Change and Disaster Reduction,Lanzhou,Gansu 730020,China;2.Northwest Regional Climate Center,Lanzhou,Gansu 730020,China)

Northwest China;drought monitoring;early warning and evaluation;services system

Using the tools of VS 2005,SQL 2005,Surfer 8.0,etc.,the regional services system of drought monitoring and early warning and evaluating over Northwest China is built.The system is the first regional network system in Northwestern China.It is the B/S structure and users can get much more information on meteorological drought,agricultural drought,and ecological drought by operating the system online.The system may supply over 50 indexes and model analysis,such as standardization precipitation index,relative humid index,comprehensive drought index,Penman evapotranspiration,water resource evaluation,and drought disaster evaluation concerning to drought monitoring and early warning and evaluation,which all can be calculated automatically.The system is heavily integrated and automatic.Most operation processes can be finished automatically.Now the system has been used for drought monitoring and early warning and evaluation services over the northwest region for nearly two years and can supply drought services conveniently.