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Forecast method of forest fire danger of coupling climate and vegetation

A forest, fire hazard technology, applied in the field of computer digital image processing

Inactive Publication Date: 2013-04-24
ZHEJIANG FORESTRY UNIVERSITY
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Problems solved by technology

[0004] At present, there are no reports at home and abroad on the early warning and forecast of forest fire risk by the coupling of meteorology and vegetation.

Method used

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  • Forecast method of forest fire danger of coupling climate and vegetation
  • Forecast method of forest fire danger of coupling climate and vegetation
  • Forecast method of forest fire danger of coupling climate and vegetation

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Embodiment Construction

[0021] Below in conjunction with embodiment and with reference to accompanying drawing, the present invention will be described in further detail:

[0022] See attached for specific process figure 1 .

[0023] The Fire Climate Index System (FWI) consists of six components. See attached figure 2 . The FWI system only requires 4 kinds of data per day, namely, dry bulb temperature, relative humidity, wind speed at 10 meters in an open field, and 24-hour total precipitation measured at noon in local standard time. The first three indicators of the FWI system are the combustibles index, which respectively represent the humidity of different layers in the forest litter, including the fine fuel humidity code, the surface combustibles humidity code and the flat drought code. The value of the humidity code of the day is calculated from the measured meteorological data value of the day and the humidity code of the previous day. At the heart of every moisture code calculation is a ...

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Abstract

A forecast method of forest fire danger of coupling climate and vegetation belongs to the computer digital image processing technical field. The forecast method of the forest fire danger of the coupling climate and vegetation comprises performing remote sensing classification on forest combustible in Zhejiang Province and performing grade division on forest fire combustible; generating a spatial forecast database of meteorological factors in a forest according to thin plate smoothing spline interpolation with meteorological data as the base; calculating to obtain a spatial database of climatic indexes of the forest fire danger in Zhejiang Province by utilizing a module of the climatic indexes of the forest fire danger and simultaneously performing the grade division on climate fire danger; performing coupling on the spatial database of the climatic indexes of the forest fire danger and a remote sensing classification database of the forest combustible, performing analysis and process by utilizing an ArcGIS ( Arc Geographic Information System) software, combining the occurrence intensity, spatial distribution pattern and regional characteristics of the forest fire disasters in Zhejiang Province, performing comprehensive analysis on fire occurrence and harm and combining with the media to establish an early warning and forecast system of the forest fire danger in Zhejiang Province to achieve forest fire danger forecast of different regions and different forest types.

Description

【Technical field】 [0001] The invention belongs to the technical field of computer digital image processing, and specifically relates to a method for coupling climate with forest combustibles to carry out early warning and forecast of forest fires. 【Background technique】 [0002] The Canadian Forest Fire Climate Index (FWI) system is currently one of the most complete and widely used systems in the world. It is based on the moisture content of 3 forest fuels and the effect of wind on fire behaviour. At present, some other countries or regions have adopted the modules or research ideas of the system to form their own fire hazard rating systems, such as New Zealand, Fiji, Mexico, Alaska and Florida in the United States, and some countries in Europe. From 1999 to 2003, the Canadian Forest Service and Southeast Asian countries jointly completed the research project on the forest fire danger system in Southeast Asia, and the FWI technology was used in the fire danger rating syste...

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Application Information

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IPC IPC(8): G06F19/00
CPCY02A90/10
Inventor 江洪余树全袁建陈健杨国福信晓颖
Owner ZHEJIANG FORESTRY UNIVERSITY
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