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Multi-scale estimation predication method of geographic model

A prediction method and multi-scale technology, applied in computing, 3D modeling, image data processing and other directions, can solve the problems of limited research and correction of geographic models, scientific deviation, lack of calculation accuracy, etc., to solve application promotion problems, simple and convenient Achievable, easy-to-achieve effects

Inactive Publication Date: 2010-12-15
HUNAN UNIV
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Problems solved by technology

[0002] Many geographic models are modeled for a specific spatial range during development and research. This specific spatial range is called the model development scale in the present invention. When the geographic model deviates from its own research and development scale, the simulation calculation However, the research and correction of specific scales of geographic models are always limited. Therefore, how to realize the multi-scale simulation calculation of geographic models becomes a model Difficulties in application promotion

Method used

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  • Multi-scale estimation predication method of geographic model

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Embodiment

[0030] The calculation model of rice production potential is selected, and the Dongting Lake area (including Changde, Yueyang, Yiyang and Changsha) is selected as the research object area, and the rice production potential of this area is simulated and calculated.

[0031] The function expression of the selected rice production potential calculation model is Y Q= ceQkGX, where Y Q Potential for rice production (kg / 666.7 m2) , which is the calculation result of the model; e is the light energy utilization rate, which is a specific value for a specific research object area, and can be regarded as a constant in this example; Q is the solar photosynthetically active radiant energy during the estimation period (J / cm2·d), Since the Dongting Lake area is relatively small, the entire area takes the same value, so this value can be used as a constant in this example; k is the unit conversion factor, which can be regarded as a constant in this example; c is an economic coeff...

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Abstract

The invention discloses a multi-scale estimation predication method of a geographic model, which overcomes the application problem of single scale of the geographic model by applying a geographic information system rasterization calculation method based on the development scale of the geographic model. Based on an Arc GIS Engine platform, the multi-scale estimation predication method achieves the coupling of the geographic information system components technology and the geographic model, fully develops the advantages of geographic information system components in a spatial data processing and the advantages of the computer in a batch data processing calculation, and carries out the quantitative simulation estimation on scientific problems involved in the geographic spatial scale by combining with the geographic model. The multi-scale estimation predication method is simple and easy to realize, belongs to a united innovation over multiple disciplines, can be applicable to the crossing research fields of hydrological simulation, meteorological simulation and the like, can be extended or popularized to multi-scale estimation related to the geographic spatial scale models, and overcomes the application and popularization problem of the geographic model.

Description

technical field [0001] The invention relates to the field of geographic information system spatial data processing technology and model scaling technology, in particular to a multi-scale estimation and prediction method for geographic models. Background technique [0002] Many geographic models are modeled for a specific spatial range during development and research. This specific spatial range is called the model development scale in the present invention. When the geographic model deviates from its own research and development scale, the simulation calculation However, the research and correction of specific scales of geographic models are always limited. Therefore, how to realize the multi-scale simulation calculation of geographic models becomes a model Difficulties in application promotion. Contents of the invention [0003] The purpose of the present invention is to provide a multi-scale estimation and prediction method of geographic models. [0004] The multi-scal...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/50G06T17/05
CPCY02A90/10
Inventor 李忠武黄金权袁敏曾光明李建兵任平
Owner HUNAN UNIV
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