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Method and device for estimating the reduction of precipitation and waterlogging by green spaces in sponge cities

A sponge city, subtractive technology, applied in the field of remote sensing and hydrology, can solve the problem of no estimation method

Active Publication Date: 2020-09-25
CHINA ACAD OF URBAN PLANNING & DESIGN +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is currently no effective method for estimating

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  • Method and device for estimating the reduction of precipitation and waterlogging by green spaces in sponge cities
  • Method and device for estimating the reduction of precipitation and waterlogging by green spaces in sponge cities
  • Method and device for estimating the reduction of precipitation and waterlogging by green spaces in sponge cities

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Embodiment Construction

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the Some, but not all, embodiments are invented. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the embodiments of the present invention.

[0021] see figure 1 , this embodiment discloses a method for estimating the reduction of precipitation and waterlogging by the sponge city green space, including:

[0022] S1. Acquire the remote sensing image of the underlying surface of the sponge city to be estimated, generate a grid of preset specifications (the grid can be generated by using prof...

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Abstract

The embodiment of the invention discloses a method and device for estimating the water reducing amount of precipitation by a green land of a sponge city, and can estimate the water reducing amount ofprecipitation by the green land of the sponge city. The method comprises the following steps of: S1, acquiring a underlying surface remote sensing image of the sponge city to be estimated, generatinga grid of a preset specification, and overlaying the grid to the underlying surface remote sensing image; S2, determining the area of various types of vegetation of the grid by using the underlying surface remote sensing image, and using the underlying surface remote sensing image to carry out the partition of the city development degree on the grid, and determining the soil area under the vegetation of the grid according to the partition result; S3, estimating the water reducing amount of precipitation by the green land of the sponge city according to the area of various types of vegetation of the grid and the soil area under the vegetation of the grid.

Description

technical field [0001] The embodiments of the present invention relate to the fields of remote sensing and hydrology, and in particular to a method and device for estimating the amount of precipitation and waterlogging reduction by sponge city green space. Background technique [0002] Sponge city is a new generation of urban stormwater management concept, which means that cities have good "elasticity" in adapting to environmental changes and dealing with natural disasters caused by rainwater. Especially for the precipitation and waterlogging of the sponge city, in order to deal with this natural disaster, it is necessary to quantify the "elasticity" of the sponge city, that is, it is necessary to estimate the reduction of the sponge city's green space to the precipitation and waterlogging. However, there is no effective estimation method yet. Contents of the invention [0003] Aiming at the deficiencies and defects of the existing technology, the embodiments of the prese...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/06G06Q50/26
CPCG06Q10/06393G06Q50/26
Inventor 刘广奇王树东周广宇孔彦鸿杨邦会
Owner CHINA ACAD OF URBAN PLANNING & DESIGN