Based on meteorological factors of geological disasters Warning System

Summary of the geological hazard warning and forecasting system construction principles, objectives and work processes, and disaster warning for WebGIS-based reporting system to achieve the composition and the feasibility of proposals put forward, has important practical significance.

Keywords meteorological factors; geological hazards; Warning System; WebGIS

China is a country prone to geological disasters, collapses, landslides and mudslides common disasters such as wide area, high frequency, with a strong destructive. Research shows that, in addition to geological structures and human activities, weather conditions, but also the formation of geological disasters A major reason, rain or continuous rainfall triggered geological disasters are often a direct factor. Therefore, the monitoring of rainfall through the provision of reliable geological disaster warning Information, as an important work.

1 Geology Disaster Warning System Overview
At present, the meteorological department's assistance in many areas of the Ministry of Land and doors have established a geological hazard warning system. Disaster risk prediction is defined and focused monitoring Information collected on the basis of further analysis of geological hazards and the secondary and derivative social and economic disasters may be, the impact of people's life, early release risk forecast, and for government departments, relevant agencies and the general public to provide appropriate measures and guidance. meteorological monitoring (especially rainfall monitoring) system and the geological-based WebGIS Disaster warning system consisting of geological hazard warning platform, in the sudden prediction and prevention of geological disasters have played a key role in [1].

1.1 Warning System goal of building
Warning System goal is to build a high time, forecast accuracy and reliability of the Information comprehensive and reports of geological disaster warning system for the relevant government departments, people in areas decision-making and disaster mitigation measures to provide scientific, timely and effective Information guide. Full the results of the use of modern building, has been acquired in a large number of meteorological observation and monitoring of severe weather Information based on the information storage, processing and analysis, geologic hazard warning reporting service platform and processes, according to the requirements of decision-making service, providing Continuous seamless geological hazard warning information reported [2].

1.2 Warning System workflow
Geological hazard warning system consists of monitoring systems and early warning reporting system two parts. Start of meteorological information collection, geological disaster information collection and information dissemination automatic generation module, through real-time monitoring rainfall, when rainfall factor of the corresponding monitoring indicators, the system to data analysis in the decision-making centers, generating geological hazard warning level, and after the release of information in determining the use of text messaging, radio, television, Internet and other media in accordance with the warning level of the masses of specific departments and relevant warning information released.

Geological Hazards Warning System 2, the composition and implementation
WebGIS-based geological hazard warning systems, disaster-related information data collection and early warning platform is the core information processing and services; weather monitoring system has a rain flood of information, early warning and other functions; group is monitoring and prevention, including early warning issued an early warning system, alarm transmission and information feedback function [3]. geological disaster warning system to achieve the normal operation, should pay attention to the following aspects:
2.1 The establishment of efficient and stable application platform
The application of highly efficient and stable platform for the entire geological hazards early warning system to provide strong support for normal operation, to improve the stability of the system has a crucial role. Well depend on the complete application platform for data information Technology hardware, mature and rational planning advanced software environment for structural design. reposted elsewhere in the Research Papers Download http://www.hi138.com geological hazard database is the core of early warning reporting system, in addition to real-time collection and distribution of rainfall data, rainfall forecast data, radar maps, satellite images and data from the typhoons and other weather information, the local administrative area, area of geographic information and public information within the region are an important part of the database. software system should be user interface, background management system, Data Exchange Platform (EAI), application of the core components admin group, WebGIS components, Microsoft.NET application server platforms and other system components. advanced, flexible software architecture consistent with the applicable requirements of management information in order to design the core components to realize the event is triggered, data-driven, open and feasible parameters geological hazard warning systems management platform.

2.2 Classification of disasters, scientific and rational
The classification of disasters related to the decision to start early warning report, forecast the scope and distribution of the release of information objects, etc. Warning System in the geological disasters, the need to give special attention [4]. In accordance with Ministry of Land and the development level of the geological disaster prediction standards, forecasting can be divided into five levels: level is unlikely; two is less likely; three (note grade) is likely; four (warning level) for the possibility of large; five level (alarm level) is very high. From the perspective of early warning reporting system, primary and secondary disasters, meaning no real warning, warning the work started by the three levels should be around three to five to carry out disaster prevention and mitigation of geological hazards work.

2.3 ensure the security of the system
Warning system for disaster prevention and mitigation provide an important basis for decision-making and guidance, therefore, must ensure the safety and authority of system safety is the key [5-6]. First of all, should give full consideration in the design of the network safety; Second, pay attention to overall system maintenance is an important guarantee to extend system life. In addition, geological hazard warning system in contact with other related systems are to achieve a specific interface program, when the geological hazard warning systems and related system failure, will not be the interaction between systems. in the operation of the system, we should keep detailed logs of operation, problems can be identified cause of the error in time recovery, and provide the basis for scientific evaluation system.

3 Summary
Zongshangsuoshu, geological hazard warning system in the construction and maintenance is a long-term, involving the department, a wide range to be referenced by many factors and complex. Therefore, we must work constantly sum up experience and in all the active cooperation of departments, the establishment of seamless flow of information chain, the relevant departments and people to provide immediate, authoritative, user-friendly information guide, to minimize the impact of geological disasters.

4 References
[1] Ding Jianwu. Hubei Meteorological Warning and Forecasting Network Situation and Strategies [J]. Hubei Meteorology, 1996 (4) :7-8.

[2] Mawen Han, Kin-ping. Sudden weather forecasting and warning of geological disasters Review [J]. Geological Hazards and Environment, 2007,18 (1) :6-9.

[3] Zhou Xu. Huzhou City GIS-based weather monitoring and forecasting system of geological disasters [A] �� Chinese Meteorological Society Annual Meeting 2006, "severe weather events and forecasting system Technology" Session Proceedings [C] .2006 .

[4] Yang Shunquan. Sudden geological disaster prevention plan of an early warning system [J]. Geological Hazard and Control, 2002,13 (2) :109-111.

[5] Xu Yulin, Sun Guoxi, Lu Meilan, et al. Jiangsu Meteorological Geological Disasters Early Warning [J]. Geological Hazard and Control, 2006,17 (1) :46-50.

[6] Lee should be true. GIS-based geological hazard warning system [J]. China Science and Technology Information, 2010 (9) :178-179.

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