CN101620452A - Quick search ruler for grassland fire danger classes - Google Patents
Quick search ruler for grassland fire danger classes Download PDFInfo
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- CN101620452A CN101620452A CN200810115943A CN200810115943A CN101620452A CN 101620452 A CN101620452 A CN 101620452A CN 200810115943 A CN200810115943 A CN 200810115943A CN 200810115943 A CN200810115943 A CN 200810115943A CN 101620452 A CN101620452 A CN 101620452A
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Abstract
The invention discloses a quick search ruler for grassland fire danger classes. The search ruler is provided with a quick search table comprising fire danger indexes of a plurality of factors, and corresponding comprehensive fire danger indexes and fire danger classes; the plurality of fire danger factors comprise four basic fire danger factors, namely temperature, relative humidity, precipitation and wind speed; the four basic fire danger factors are taken as grassland fire risk indexes; the weighted average of fire danger indexes of the four fire danger factors is taken as a comprehensive fire danger index; and a corresponding fire danger class is obtained according to the comprehensive fire danger index. The grassland fire danger classes can be conveniently searched through the quick search table on the search ruler; and the search ruler can simply, accurately and scientifically predict grassland fire danger.
Description
Technical field
The present invention relates to a kind of fire forecasting techniques, relate in particular to a kind of quick search ruler for grassland fire danger classes.
Background technology
Along with global warming, the big fire of catastrophic grassland takes place in the whole world number of times and area have the trend that increases year by year.
The daily fire prevention preliminary work of grassland weather conditions conducive to wildfires and fire size class relies on the prediction of fire weather forecast and danger class to a great extent, and what kind of order of severity will be fire will " reach " because they can illustrate every day.The implication of grassland fire is exactly the hazard level of prairie fire, the possible degree of the possible degree of prairie fire generation just and baked wheaten cake area (scale), fire spread, fire intensity.
Fire size class is an overall target series of the various fire danger factors represented with digital form, the required at that time model measure of taking of this overall target reflection.
At present, use the custom of fire forecast in order to adapt to fire prevention commander department and the masses, with the fire degree people on grassland for being divided into five fire size classes.Specifically as shown in table 1:
Table 1 fire size class is divided
| Fire size class | Hazard level | Inflammable degree | Spread degree |
| One | Be safe from danger | Can not burn | Can not spread |
| Two | Low degree of hazard | Be difficult to burning | Be difficult to spread |
| Three | Poor risk | Than easy firing | More easily spread |
| Four | Highly dangerous | Burning easily | Spread easily |
| Five | Be in extreme danger | Very easily burning | Very easily spread |
The grassland fire size class is to weigh the index of prairie fire hazard level, also is the grassland region important reference technique index that all will use every day in the fire prevention phase.
Grassland fire size class and multiple factor-related in the prior art, mainly is to draw according to meteorological factor, combustible situation and the factors such as landform that influence people's behavior to the prediction of fire size class.
There is following shortcoming at least in above-mentioned prior art: fire size class is carried out complexity of forecast method, and the factor of human intervention is bigger in the forecasting process, is difficult to prediction grassland fire size class accurate, science.
Summary of the invention
The purpose of this invention is to provide a kind of energy simple, accurately, the quick search ruler for grassland fire danger classes of the prediction grassland fire size class of science.
The objective of the invention is to be achieved through the following technical solutions:
Quick search ruler for grassland fire danger classes of the present invention, this is looked into slide rule and is provided with the quick table for reference of grassland fire size class, described quick table for reference comprises a plurality of fire danger factors, and described a plurality of fire danger factors pairing fire danger index respectively, also comprise the complete fire and allied coverage insurance index that the weighted mean value of a plurality of fire danger indexs draws and the fire size class of this complete fire and allied coverage insurance index correspondence.
As seen from the above technical solution provided by the invention, quick search ruler for grassland fire danger classes of the present invention, because this is looked into slide rule and is provided with the quick table for reference of grassland fire size class, table for reference comprises a plurality of fire danger factors fast, and a plurality of fire danger factors pairing fire danger index respectively, also comprise the complete fire and allied coverage insurance index that the weighted mean value of a plurality of fire danger indexs draws and the fire size class of this complete fire and allied coverage insurance index correspondence.Can find the fire size class on grassland very easily by the quick table for reference of looking on the slide rule.Energy is simple, accurate, the prediction grassland fire size class of science.
Embodiment
Quick search ruler for grassland fire danger classes of the present invention, its preferable embodiment are that this is looked into slide rule and is provided with the quick table for reference of grassland fire size class.Comprise fast a plurality of fire danger factors such as air themperature, relative humidity, precipitation, wind-force pairing fire danger index respectively in the table for reference, also comprise the complete fire and allied coverage insurance index that the weighted mean value of a plurality of fire danger indexs draws and the fire size class of this complete fire and allied coverage insurance index correspondence.According to the situation of locality, can also increase other fire danger factors, as the topographic condition of locality, human activity situation etc.
When the weighted mean value of a plurality of fire danger indexs calculated in the table for reference fast, the weight of a plurality of fire danger indexs can be respectively: temperature factor fire danger index 30～35%, relative humidity factor fire danger index 25～30%, rainfall factor fire danger index 18～22%, wind-force factor fire danger index 18～22%.As temperature factor fire danger index 33%, relative humidity factor fire danger index 27%, rainfall factor fire danger index 20%, wind-force factor fire danger index 20%, specifically can carry out different selections according to local conditions to the selection of weight.
When the actual fabrication form, span that can the complete fire and allied coverage insurance index is set to 0～60, and pairing fire size class is respectively: 0～15, one-level; 16～25, secondary; 26～30, three grades; 31～45, level Four; 46～60, Pyatyi.
To determining of the span of the fire danger index of each fire danger factors, can be provided with respectively according to the weight of each fire danger factors, like this, can draw the value of complete fire and allied coverage insurance index directly with the fire danger index value addition of each fire danger factors in the application.
As: the span of temperature factor fire danger index is 0～20, and pairing air themperature is respectively: 0, air themperature is less than or equal to 5.0 ℃; 5, air themperature equals 5.1～10.0 ℃; 10, air themperature equals 10.1～15.0 ℃; 15, air themperature equals 15.1～20.0 ℃; 20, air themperature equals 20.1～25.0 ℃;
The span of relative humidity factor fire danger index is 0～16, and pairing relative humidity is respectively: 0, relative humidity is more than or equal to 61%; 4, relative humidity equals 51～60%; 8, relative humidity equals 41～50%; 12, relative humidity equals 31～40%; 16, relative humidity is less than or equal to 30%;
The span of rainfall factor fire danger index is 0～12, and pairing continuous no precipitation day is respectively: 0, the same day; 3,1～2 day; 6,3～4 days; 9,5～6 days; 12, more than 7 days or 7 days;
The span of wind-force factor fire danger index is 0～12, and pairing wind-force is respectively: 0,0.1～1.4m/s; 3,1.5～3.3m/s; 6,3.4～5.4m/s; 9,5.5～7.9m/s; 12, more than or equal to 8.0m/s.
Above-mentioned a plurality of fire danger index can also comprise following 2 phenology factor fire danger indexs: the green situation fire danger index of vegetation, accumulated snow cover the situation fire danger index, with these two factors as correcting the factor.
Wherein, the weight that green situation factor fire danger index of vegetation and accumulated snow cover situation factor fire danger index can be respectively-45～-55%, as: 50% etc.
As shown in table 2, be the quick table for reference on the quick search ruler for grassland fire danger classes of specific embodiment.
The quick table for reference of table 2 grassland fire size class
The using method of table for reference is fast:
At first, find or survey a plurality of fire danger factors at the place, grassland that needs prediction, as air themperature, relative humidity, do not have precipitation day, wind-force, the green situation of vegetation, accumulated snow covering situation etc. continuously,, can only detect the part factor wherein according to the situation of locality;
Then, from quick table for reference, find the value of the fire danger index of each fire danger factors correspondence respectively;
Afterwards, the value addition of a plurality of fire danger indexs of finding is drawn the value of complete fire and allied coverage insurance index, find complete fire and allied coverage insurance index correspondence fire size class at that time again.
The present invention as prairie fire risk factor index, calculates corresponding fire danger index by selecting temperature, relative humidity, precipitation, four element factors of wind speed for use, thereby determines the grassland fire size class.And check the former fire size class of equation in calculation soon quickly by quick search ruler for grassland fire danger classes.Can be simply, accurately, the fire size class on the prediction grassland of science.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.
Claims (9)
1, a kind of quick search ruler for grassland fire danger classes, it is characterized in that, this is looked into slide rule and is provided with the quick table for reference of grassland fire size class, described quick table for reference comprises a plurality of fire danger factors, and described a plurality of fire danger factors pairing fire danger index respectively, also comprise the complete fire and allied coverage insurance index that the weighted mean value of a plurality of fire danger indexs draws and the fire size class of this complete fire and allied coverage insurance index correspondence.
2, quick search ruler for grassland fire danger classes according to claim 1 is characterized in that, described a plurality of fire danger factors comprise air themperature, relative humidity, precipitation, wind-force.
3, quick search ruler for grassland fire danger classes according to claim 2, it is characterized in that the weight of the fire danger index of the described correspondence of described a plurality of fire danger factors is respectively: the pairing fire danger index 30～35% of temperature factor, the pairing fire danger index 25～30% of the relative humidity factor, the pairing fire danger index 18～22% of rainfall factor, the pairing fire danger index 18～22% of the wind-force factor.
4, quick search ruler for grassland fire danger classes according to claim 3 is characterized in that, the span of described complete fire and allied coverage insurance index is 0～60, and pairing fire size class is respectively:
0～15, one-level; 16～25, secondary; 26～30, three grades; 31～45, level Four; 46～60, Pyatyi;
The span of the pairing fire danger index of described temperature factor is 0～20, and pairing air themperature is respectively: 0, air themperature is less than or equal to 5.0 ℃; 5, air themperature equals 5.1～10.0 ℃; 10, air themperature equals 10.1～15.0 ℃; 15, air themperature equals 15.1～20.0 ℃; 20, air themperature equals 20.1～25.0 ℃;
The span of the pairing fire danger index of the described relative humidity factor is 0～16, and pairing relative humidity is respectively: 0, relative humidity is more than or equal to 61%; 4, relative humidity equals 51～60%; 8, relative humidity equals 41～50%; 12, relative humidity equals 31～40%; 16, relative humidity is less than or equal to 30%;
The span of the pairing fire danger index of described rainfall factor is 0～12, and pairing continuous no precipitation day is respectively: 0, the same day; 3,1～2 day; 6,3～4 days; 9,5～6 days; 12, more than 7 days or 7 days;
The span of the pairing fire danger index of the described wind-force factor is 0～12, and pairing wind-force is respectively: 0,0.1～1.4m/s; 3,1.5～3.3m/s; 6,3.4～5.4m/s; 9,5.5～7.9m/s; 12, more than or equal to 8.0m/s.
According to claim 2,3 or 4 described quick search ruler for grassland fire danger classes, it is characterized in that 5, described a plurality of fire danger factors also comprise following 2 phenology factors: the green situation of vegetation, accumulated snow cover situation.
6, quick search ruler for grassland fire danger classes according to claim 5 is characterized in that, the weight that green situation of described vegetation and accumulated snow cover the pairing fire danger index of situation is respectively-45～-55%.
7, quick search ruler for grassland fire danger classes according to claim 6 is characterized in that, the weight that green situation of described vegetation and accumulated snow cover the pairing fire danger index of situation is respectively-50%.
According to each described quick search ruler for grassland fire danger classes of claim 1 to 4, it is characterized in that 8, described quick table for reference comprises following form.
9, quick search ruler for grassland fire danger classes according to claim 8 is characterized in that, the using method of described quick table for reference is:
At first, find or survey a plurality of fire danger factors at the place, grassland that needs prediction;
Then, from described quick table for reference, find the value of the fire danger index of each fire danger factors correspondence respectively;
Afterwards, the value addition of a plurality of described fire danger indexs of finding is drawn the value of complete fire and allied coverage insurance index, find described complete fire and allied coverage insurance index correspondence fire size class at that time again.
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| CN200810115943A CN101620452A (en) | 2008-06-30 | 2008-06-30 | Quick search ruler for grassland fire danger classes |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103473611A (en) * | 2013-09-06 | 2013-12-25 | 国家电网公司 | Electric transmission line forest fire grade forecasting method based on five factors |
| CN103885471A (en) * | 2014-02-20 | 2014-06-25 | 中国林业科学研究院森林生态环境与保护研究所 | Forest combustible matter humidity automatic regulating system and method based on forest fire hazard |
| CN105205587A (en) * | 2015-08-15 | 2015-12-30 | 东北师范大学 | Northern grassland fire hazard risk grade rapid assessment method |
| CN106652309A (en) * | 2017-03-09 | 2017-05-10 | 宁波鼎翔消防技术有限公司 | Automatic fire alarm equipment management system |
| CN109949872A (en) * | 2017-11-10 | 2019-06-28 | 成都金禄福生物科技有限公司 | A kind of design method customizing compound fertilizer using big data |
| CN110459030A (en) * | 2019-09-06 | 2019-11-15 | 深圳市瑞讯云技术有限公司 | The detection method and device of fire |
| CN118333412A (en) * | 2024-06-17 | 2024-07-12 | 中科星图智慧科技安徽有限公司 | Forest fire risk factor-based fire risk grade model and construction method |
| CN118333412B (en) * | 2024-06-17 | 2024-10-25 | 中科星图智慧科技安徽有限公司 | Fire risk level construction method based on forest fire risk factors |
-
2008
- 2008-06-30 CN CN200810115943A patent/CN101620452A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103473611A (en) * | 2013-09-06 | 2013-12-25 | 国家电网公司 | Electric transmission line forest fire grade forecasting method based on five factors |
| CN103885471A (en) * | 2014-02-20 | 2014-06-25 | 中国林业科学研究院森林生态环境与保护研究所 | Forest combustible matter humidity automatic regulating system and method based on forest fire hazard |
| CN105205587A (en) * | 2015-08-15 | 2015-12-30 | 东北师范大学 | Northern grassland fire hazard risk grade rapid assessment method |
| CN106652309A (en) * | 2017-03-09 | 2017-05-10 | 宁波鼎翔消防技术有限公司 | Automatic fire alarm equipment management system |
| CN109949872A (en) * | 2017-11-10 | 2019-06-28 | 成都金禄福生物科技有限公司 | A kind of design method customizing compound fertilizer using big data |
| CN109949872B (en) * | 2017-11-10 | 2023-09-29 | 成都金禄福生物科技有限公司 | Design method for customizing compound fertilizer by utilizing big data |
| CN110459030A (en) * | 2019-09-06 | 2019-11-15 | 深圳市瑞讯云技术有限公司 | The detection method and device of fire |
| CN118333412A (en) * | 2024-06-17 | 2024-07-12 | 中科星图智慧科技安徽有限公司 | Forest fire risk factor-based fire risk grade model and construction method |
| CN118333412B (en) * | 2024-06-17 | 2024-10-25 | 中科星图智慧科技安徽有限公司 | Fire risk level construction method based on forest fire risk factors |
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Application publication date: 20100106 |