Precipitation condition evaluation method

A precipitation and status technology, applied in geographic information databases, special data processing applications, structured data retrieval, etc., can solve problems such as high or low, unable to reveal the average annual precipitation of precipitation, etc.

Pending Publication Date: 2020-03-27
内蒙古小草数字生态产业股份有限公司 +1
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Problems solved by technology

[0004] This application provides a method for assessing precipitation status to solve the problem that the current status data of precipitation in the prior art only reveals the spatial distribution value of precipitation in a certain period, and cannot reveal whether the precipitation is higher or lower than the average annual precipitation

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  • Precipitation condition evaluation method

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[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0019] In the current precipitation status assessment, in the prior art, only the current status data of precipitation can be known, that is, the precipitation distribution data of the current area can be generated by obtaining point precipitation data of meteorological stations and processed by GIS interpolation method. Only the weighted Markov chain model is used to evaluate the precipitation status. However, the current precipitation status dat...

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Abstract

The invention discloses a precipitation condition evaluation method, specifically comprising the steps: acquiring and preprocessing precipitation data of a meteorological station; generating precipitation grid maps of different years according to the obtained preprocessed precipitation data; calculating a precipitation average value from the initial year to the target year according to the precipitation grid map, and generating an annual precipitation average value grid map; and calculating a difference value between a target period year and the annual precipitation mean value to obtain a difference value grid map. The abundance, smoothness and insufficiency of the rainfall condition of the generation area are directly displayed in the difference grid map, and automatic updating can be achieved according to year updating, and the water demand in agriculture and animal husbandry production is further guided; and based on a geographic information system, the precipitation condition evaluation method is seamlessly linked with other ecological index data such as vegetation indexes, vegetation coverage, net primary productivity and aboveground biomass during correlation analysis.

Description

technical field [0001] This application relates to the technical field of ecological environment protection, in particular to a geographic information system calculation method for evaluating precipitation conditions. Background technique [0002] In the technical field of ecological environment protection, the assessment of precipitation status is a very important task. [0003] In the prior art, only the present data of precipitation can be known, that is, the point precipitation data of meteorological stations are used to process and generate the regional precipitation distribution data through the GIS interpolation method. Only the weighted Markov chain model is used to evaluate the precipitation status. However, the current data of precipitation only reveal the spatial distribution of precipitation in a certain period, and cannot reveal whether the precipitation is high or low, that is, there is no model for evaluating the precipitation status. The weighted Markov cha...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/29
CPCG06F16/29
Inventor 王保林哈斯尔孙广福白耀华景文道力格亚张全民敖一杰
Owner 内蒙古小草数字生态产业股份有限公司
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