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Monitoring And Valuation System Of Weather Disaster And Environment In Harbin

Posted on:2009-10-31Degree:MasterType:Thesis
Country:ChinaCandidate:G M CaoFull Text:PDF
GTID:2131360308977872Subject:Environmental Engineering
Abstract/Summary:PDF Full Text Request
Based on the automatic monitoring station net and the ground receive system of the polar-orbiting satellite, Geostationary Meteorological Satellite and Doppler radar, adopted RS technique, combined the history data and typical examples of Harbin, we analyzed the real time observation data; and applied the geography information of Harbin and the counties belong to Harbin district, use the methods such as mathematics statistical analysis, numerical forecast model and analogy to the history data and typical examples, we also analyzed and researched the monitoring methods of weather disaster and environment.The result showed:1. Built up the Harbin city monitoring valuation decision service system of agro-meteorological disaster. The system mainly includes two parts:the environment monitoring and evaluation subsystem and the meteorological disaster monitoring and valuation subsystem; 2. We built monitoring and evaluation system of the soil moisture content and the drought,waterlogging damage by the thermal inertia approach, which can accurately monitor the soil moisture content and the drought,water logging damage for the whole district and also can impersonally and quantificationally estimate the stricken degree, stricken area. All these provide scientific basis to the city government in the outlay arrangement of disaster prevention and disaster relief;3. Through the comprehensive meteorological monitering system for monitoring weather disasters,meteorological disaster including drought,hail and sandstorm can be can predicted efficiently. All can provide information for the protection and reduction of disaster.4. via the RS monitoring technique of the earth's surface albedo variety, we monitored and evaluated the ground snow area change. It can provide countermeasure service to traffic, tour and agriculture by monitoring and evaluation snow area of the first bigger snowfall in the first month of winter; and the monitoring and evaluation of the snow area change in the first month of spring are mainly for the spring soil moisture content monitoring, drought or waterlogging trend analysis and forecast and the weather decision-making service of the sowing in springtime;5. Used RS monitoring technique to develop the monitoring and valuations of entironment, used the earth's surface temperature index to develop "the city heat island effect" research. The analysis result shows that the average surface temperature of the city zone is on the high side 5-6 degree than outskirts', and the surface temperature of the downtown center is obvious higher than 8 degree or so. The monitoring result indicate that the city heat island effect is really exist which decrease successively from the city zone to outskirts; adopt the contrast analysis method with cloud monitoring and the high temperature area monitoring images.This article is based on comprehensive meteorological observation system continuously improved and rs satellite technology farther maturity for study.The research results are the actual work of the inspection.So the conclusion in this paper not only provide scientific basis, but also has guidance signification to practice.
Keywords/Search Tags:Meteorological disaster, Monitoring and Analysis, Valuation System
PDF Full Text Request
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