CN103258104A - Environment health remote sensing diagnosing method - Google Patents
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- CN103258104A CN103258104A CN2012100331005A CN201210033100A CN103258104A CN 103258104 A CN103258104 A CN 103258104A CN 2012100331005 A CN2012100331005 A CN 2012100331005A CN 201210033100 A CN201210033100 A CN 201210033100A CN 103258104 A CN103258104 A CN 103258104A
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Abstract
The invention discloses an environment health remote sensing diagnosing method which includes the steps: (1) screening an environment health remote sensing diagnosis index factor; (2) building an environment health remote sensing diagnosis index system; (3) extracting an index factor through remote sensing satellite data; (4) calculating environment health value by using a comprehensive parameter evaluation method; and (5) grading an environment health remote sensing diagnosis result. The environment health remote sensing diagnosing method uses a satellite remote sensing image as a data source to obtain an influence factor of the environment health, has the advantages of large range, multi-phase, high precision and low cost, can improve environment health diagnosis precision and timeliness of pre-warning, can master an environment current situation and a change trend comprehensively, fast and correctly, defines the emphasis and direction of environment protection across the country and regions clearly, and provides the basis for a administrative department to know the environment current situation timely and generate a reasonable environment protection and utilization strategy.
Description
Technical field
The present invention relates to a kind of Environmental Health diagnostic method, relate in particular to a kind of Environmental Health remote sensing diagnosis method.
Background technology
Environmental Health refers to make the local area ecological sustainable development, self-recovery from the negative influence of various natures and human accident disaster, the suitable environment state that bio-diversity and the ecologic equilibrium can be kept substantially.The field that Environmental Health research relates to is very extensive, has comprised the content of aspects such as environmental science, epidemiology, geography, biology, management.International geographical federation has just set up " healthy geographical " working group as far back as 1976, specialize in geographical environment and health problem.In the eighties in last century, consider socio-economic development to the significant impact of health, rename and upgrade to " healthy with development " Professional Committee, to the nineties, rename " healthy, environment and development " council as, and formed " health and environment " council in 2000.Its goal in research is: " the research human health and with development and contacting of changing, emphasis is that the whole world, country, zone and area surroundings change health affected; Urbanization, particularly Developing country citiesization are to health affected; The disaster problem that nature and human factor cause; The social economy relevant with economic crisis, structural adjustment changes influence healthy and health care ".The expert in fields such as the geography in Northern Europe and medical science every two years held a geomedicine academic discussion from 1980.The U.S., Canada, Britain medical geography working group have also carried out every two years academic conference once the same period, have held altogether so far 10 times.20th century the mid-80 because the aggravation of serial problems such as climate warming, ecological disruption, environmental pollution, make people to therefore and anxiety and concern that the human health problems that occurs performance makes new advances.WHO nineteen ninety has been published " the potential health effect of climate change ", has discussed climate change and potential health problem first.Under the common hosting of WHO, WMO and UNEP 1996 year finished a assessment report about climate change and human health thereafter.Over nearly 20 years along with the variation of whole world nature and humanistic environment, the research contents of Environmental Health begins by turning to research terrestrial ecosystem secular variation, global environmental change to the combined influence of responsive population health than water in the transmission distribution of short-term and the environment, atmosphere, soil, food pollution to health affected, and country or regional responsive measures.
External Environmental Health appraisal began to occur the sixties in 20th century, and the seventies is flourish.Many countries attach great importance to the Environmental Health evaluation in Research of Environmental Sciences.External eco-environmental quality evaluation starts from the beginning of the eighties, more influential research during this time is environmental monitoring and the assessment item (EMAP) that EPA at the beginning of the nineties (U.5.EPA) proposes, estimate the ecological resources situation and development trend is carried out long-term forecasting from zone and country scale, this project develops into territory, state and small watershed environmental monitoring and evaluation (Eliazbeth, 2000) again later on.The typical case that this project is used is that USEPA employing at beginning of the nineties mesoscale method is carried out the ecological evaluation (Charles, 1999) that people such as ecological evaluation (Michael, 2000) and Strobel carry out the area, river mouth to the Da Xiyangzhong district.
The Environmental Health evaluation just begins to cause people's attention in China up to the eighties in 20th century, emphasis is Agro-ecological System, next is city environmental quality comprehensive evaluation, and then relate to regional environment zoning, mountain area ecologic environment, soil sustainable use and provincial ecology synthesis evaluation etc. (left side big, 2002).People such as Yan Wujiu (1995) as evaluation unit, adopt natural ecosystems, three subsystems of social economic system and farmland pollution system index for selection respectively with the administrative area, county, and Wuhu regional agriculture eco-environmental quality has been carried out comprehensive evaluation.Zhao Yuelong etc. (1998) research fragile ecological environment quality evaluating method has carried out the evaluation comparative analysis to the ecology fragility degree of each provinces and regions, the whole nation.Zhou Huarong is with three ecological subsystems: farmland subsystem, natural subsystem, man-made environment pressure subsystem, set up assessment indicator system, and be evaluation unit with administrative unit at county level, Xinjiang eco-environmental quality present situation has been carried out comprehensive evaluation (2000).LIU WEIGUOs etc. (2008) are established the ecological risk acceptor with remote sensing technology, and COMPREHENSIVE CALCULATING and GIS analysis stack by ecological risk obtain Bosten regional complex ecological risk assessment.
The Environmental Health evaluation relates to a plurality of industry departments such as public health, meteorology, water resource, agricultural, forestry, at present to the evaluation of Environmental Health mostly at Environmental Health in a certain respect, carry out in industry-by-industry department inside, as atmospheric environment, quality etc. is estimated separately, lack the whole synthesis evaluation of taking all factors into consideration the Environmental Health each side.Competent authorities want to fully understand the environment present situation, need to coordinate different industry departments, are difficult to reach unified at ageing and space scale.And along with steady development of economy, also there has been new requirement in competent authorities to the ageing and range scale of decision-making.Traditional Environmental Health evaluation sampled datas that depend on the ground monitoring station more, there are problems such as evaluation object is single, operability is not strong, since the restricted number of monitoring station, and utilize sample prescription to replace the method in zone to be difficult to its spatial variations of objective description, have certain limitation.Remote sensing technology has on a large scale, multidate, high precision, advantage cheaply, be applied to the Environmental Health monitoring, diagnosing and can solve this difficult problem, only need to obtain all kinds of relevant environmental impact factors by remote sensing technology, by Remote Sensing Model, can realize fast at different scale, Environmental Health comprehensive diagnos cheaply.Under such background, the present situation that only relies on the measured value of observation website and information that field study is obtained to diagnose and upgrade Environmental Health information can not satisfy the requirement of decision-making section, and fast-developing remote sensing technology provides new research mode and means for the Environmental Health diagnosis.Make up extensive suitable, the workable Environmental Health remote sensing diagnosis index system of a cover; take all factors into consideration the each side influence factor of Environmental Health, fast, comprehensively,, at low cost the Environmental Health situation is carried out the task of top priority that quantitative Diagnosis is the management of present current environment and protection on a large scale.
Summary of the invention
The invention provides a kind of Environmental Health remote sensing diagnosis method, may further comprise the steps:
1) the screening Environmental Health remote sensing diagnosis index factor;
2) set up Environmental Health remote sensing diagnosis index system;
3) utilize remote sensing satellite data extract index factor;
4) utilize comprehensive parameters evaluation assessment computing environment health value;
5) Environmental Health remote sensing diagnostic result is carried out classification.
The present invention is the factor of influence that data source is obtained Environmental Health with the satellite remote-sensing image; have on a large scale, multidate, high precision, advantage cheaply; can improve the ageing of the precision of Environmental Health diagnosis and early warning; can grasp present situation and the variation tendency of China's environment comprehensively, quickly and accurately; the emphasis of the clear and definite whole nation and various places environmental protection and direction; in time understand the environment present situation for competent authorities, formulate rational environmental protection and utilize countermeasure that foundation is provided.
Description of drawings
Fig. 1 is the process flow diagram of Environmental Health remote sensing diagnosis;
Fig. 2 is the figure as a result that the sources of three rivers area is carried out Environmental Health remote sensing diagnosis.
Embodiment
Fig. 1 is the process flow diagram of Environmental Health remote sensing diagnosis.As seen from the figure, carry out Environmental Health remote sensing diagnosis and comprise following five steps:
1) the screening Environmental Health remote sensing diagnosis index factor;
2) set up Environmental Health remote sensing diagnosis index system;
3) utilize remote sensing satellite data extract index factor;
4) utilize comprehensive parameters evaluation assessment computing environment health value;
5) Environmental Health remote sensing diagnostic result is carried out classification.
The flow process of carrying out Environmental Health remote sensing diagnosis specifically describes as follows:
1) index factor screening: take into full account the property obtained of remote sensing technology, in the completeness that both ensures assessment indicator system, make every effort to again avoid on the basis of the repeatability between each factor, screening can reflect the index factor of Environmental Health situation.The Environmental Health remote sensing diagnosis index factor of screening comprises the coenocorrelation health indicator factors such as the water body environment health indicator factor such as the healthy index of correlation factor of atmospheric environment such as aerosol optical depth, wetland area and vegetation index.
2) index system makes up: the Environmental Health remote sensing diagnosis index system of structure comprises three layers: ground floor is destination layer, i.e. Environmental Health remote sensing diagnostic result; The second layer is the key element layer, comprises the healthy key element of atmospheric environment, the healthy key element of water body environment and the healthy key element of coenocorrelation; The 3rd layer is the index factor layer, is the index factor that can reflect each key element layer, comprises atmospheric aerosol optical thickness, wetland area, vegetation index etc.
3) utilize remote sensing technology to extract index factor: aerosol optical depth is the general data source with the MODIS satellite image, from the MODIS product data of US National Aeronautics and Space Administration's (National Aeronautics and Space Administration is called for short NASA) issue, extract; Index factors such as vegetation index adopt the mode of stratified sampling respectively at each evaluation unit, be the general data source with environment mitigation satellite (HJ-1A/B) image of China, utilize existing remote-sensing inversion model to extract; Index factors such as wetland area respectively at each evaluation unit by choosing representational representative region, be the general data source with the HJ-1A/B satellite image, utilize the remote sensing image classification technology to extract.
4) calculating of Environmental Health value:
At first, each index factor is adopted the extreme value method for normalizing, obtain the index factor P that participates in evaluation and electing of nondimensionalization
i, computing formula is as follows:
Wherein, X
iBe the value of i index factor, X
Min, X
MaxBe respectively minimum value and the maximum occurrences of i index factor.
Then, utilize the index factor P that participates in evaluation and electing of nondimensionalization
iThe healthy comprehensive number S of computing environment, as Environmental Health remote sensing diagnosis overall target, computing formula is as follows:
Wherein, W
iBe the weighted value of i item index, the assignment of weight, is obtained with analytical hierarchy process with reference to the index Analysis of Importance mainly according to expertise; N is the number of index factor.
6) Environmental Health remote sensing diagnostic result classification: we are divided into 5 grades according to overall target with Environmental Health remote sensing diagnostic result: be respectively very healthy, healthy, inferior health, unhealthy and ill.
With a concrete example the present invention is described below:
Environmental Health remote sensing with sources of three rivers area, Qinghai Province is diagnosed as example.We at first screen the index factor that can reach inverting sources of three rivers area surroundings health status, have chosen wetland area, wetland degree of fragmentation, vegetation index, vegetation coverage, aerosol optical depth etc. as the Environmental Health remote sensing diagnosis index factor.Then, made up three layers the Environmental Health remote sensing diagnosis index system that comprises destination layer, key element layer and index factor layer.
From the MODIS satellite aerosol product extracting data of NASA issue sources of three rivers area atmospheric aerosol optical thickness mean value in 2010; Be the general data source with the HJ-1A/B satellite image, inverting index such as the vegetation index in sources of three rivers area and vegetation coverage; Wetland area and degree of fragmentation index etc. are the general data source with the HJ-1A/B satellite image, utilize the remote sensing image classification technology to extract and obtain.
Utilize comprehensive evaluation to calculate Environmental Health remote sensing diagnosis aggregative index, and carry out classification according to table 1 pair diagnostic result, obtain the Environmental Health remote sensing diagnostic result in final sources of three rivers area as shown in Figure 2.
Table 1
Claims (6)
1. the Environmental Health remote sensing diagnosis method is characterized in that, comprises step:
1) the screening Environmental Health remote sensing diagnosis index factor;
2) set up Environmental Health remote sensing diagnosis index system;
3) utilize remote sensing satellite data extract index factor;
4) utilize comprehensive parameters evaluation assessment computing environment health value;
5) Environmental Health remote sensing diagnostic result is carried out classification.
2. Environmental Health remote sensing diagnosis method according to claim 1, it is characterized in that, described step 1) is that the Environmental Health remote sensing diagnosis index factor of screening comprises the water body environment health indicator factors such as the healthy index of correlation factor of atmospheric environment such as aerosol optical depth, wetland area, and the coenocorrelation health indicator factor such as vegetation index.
3. Environmental Health remote sensing diagnosis method according to claim 1 is characterized in that, described step 2) comprising: the Environmental Health remote sensing diagnosis index system of structure comprises three layers: ground floor is destination layer, i.e. Environmental Health remote sensing diagnostic result; The second layer is the key element layer, comprises the healthy key element of atmospheric environment, the healthy key element of water body environment and the healthy key element of coenocorrelation; The 3rd layer is the index factor layer, is the index factor that can reflect each key element layer, comprises atmospheric aerosol optical thickness, wetland area, vegetation index etc.
4. Environmental Health remote sensing diagnosis method according to claim 1 is characterized in that, described step 3) comprises:
1) aerosol optical depth is the general data source with the MODIS satellite image, extracts from the MODIS product data of US National Aeronautics and Space Administration's (National Aeronautics and Space Administration is called for short NASA) issue;
2) index factor such as vegetation index adopts the mode of stratified sampling respectively at each evaluation unit, is the general data source with environment mitigation satellite (HJ-1A/B) image of China, utilizes existing remote-sensing inversion model to extract;
3) index factor such as wetland area respectively at each evaluation unit by choosing representational representative region, be the general data source with the HJ-1A/B satellite image, utilize the remote sensing image classification technology to extract.
5. Environmental Health remote sensing diagnosis method according to claim 1 is characterized in that, described step 4) comprises:
1) each index factor is adopted the extreme value method for normalizing, obtain the index factor P that participates in evaluation and electing of nondimensionalization
i, computing formula is as follows:
Wherein, X
iBe the value of i index factor, X
Min, X
MaxBe respectively minimum value and the maximum occurrences of i index factor.
2) utilize the index factor P that participates in evaluation and electing of nondimensionalization
iThe healthy comprehensive number S of computing environment, as Environmental Health remote sensing diagnostic value, computing formula is as follows:
Wherein, W
iBe the weighted value of i item index, the assignment of weight, is obtained with analytical hierarchy process with reference to the index Analysis of Importance mainly according to expertise; N is the number of index factor.
6. Environmental Health remote sensing diagnosis method according to claim 1 is characterized in that, described step 5) comprises: Environmental Health remote sensing diagnostic result is divided into 5 grades: be respectively very healthy, healthy, inferior health, unhealthy and ill.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105095628A (en) * | 2014-05-16 | 2015-11-25 | 中国农业科学院农业资源与农业区划研究所 | Method for monitoring spatial-temporal change of global vegetation coverage |
| CN105354414A (en) * | 2015-10-21 | 2016-02-24 | 西安交通大学 | Hierarchical analysis-based human body health condition assessment method |
| CN113222390A (en) * | 2021-05-06 | 2021-08-06 | 长江空间信息技术工程有限公司(武汉) | Adaptive region green development evaluation method based on multi-source satellite remote sensing technology |
| CN113376327A (en) * | 2021-07-08 | 2021-09-10 | 海南绿能环境工程有限公司 | Environmental monitoring information management method and system based on big data |
-
2012
- 2012-02-15 CN CN2012100331005A patent/CN103258104A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105095628A (en) * | 2014-05-16 | 2015-11-25 | 中国农业科学院农业资源与农业区划研究所 | Method for monitoring spatial-temporal change of global vegetation coverage |
| CN105354414A (en) * | 2015-10-21 | 2016-02-24 | 西安交通大学 | Hierarchical analysis-based human body health condition assessment method |
| CN113222390A (en) * | 2021-05-06 | 2021-08-06 | 长江空间信息技术工程有限公司(武汉) | Adaptive region green development evaluation method based on multi-source satellite remote sensing technology |
| CN113376327A (en) * | 2021-07-08 | 2021-09-10 | 海南绿能环境工程有限公司 | Environmental monitoring information management method and system based on big data |
| CN113376327B (en) * | 2021-07-08 | 2023-01-17 | 海南海笙信息科技有限公司 | Environmental monitoring information management method and system based on big data |
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Application publication date: 20130821 |