Method for monitoring dynamic change of urban heat island intensity

A technology of urban heat island and dynamic changes, applied in the direction of radiation pyrometry, measuring devices, temperature distribution maps, etc., can solve the problems of no research reports on the impact of urban renewal, few application practices, and little attention to the monitoring of heat island fading

Inactive Publication Date: 2018-11-09
SOUTH CHINA AGRI UNIV
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Problems solved by technology

[0003] Thermal infrared remote sensing has been used to monitor the urban heat island effect for 30 years. Due to the land use and cover changes caused by urbanization and the associated factors such as population and economic development, it greatly affects the formation of urban climate. Many studies The paper also reported the use of satellite remote sensing to monitor the phenomenon of heat

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  • Method for monitoring dynamic change of urban heat island intensity
  • Method for monitoring dynamic change of urban heat island intensity
  • Method for monitoring dynamic change of urban heat island intensity

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[0048] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0049]The embodiment of the present invention qualitatively and quantitatively analyzes the change law of heat island intensity by analyzing the multi-temporal heat island intensity change caused by land cover type and land cover pattern in the target area within the target time period, so as to provide the target area to be implemented. Retrofit measures are provided for reference.

[0050] Considering the formation principle of the urban heat island effect, it is...

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Abstract

The invention provides a method for monitoring the dynamic change of the urban heat island intensity. According to the method, a processing and analysis technology of a thermal infrared remote sensingimage and a high-resolution remote sensing image is utilized, a qualitative or quantitative relation among the change of the heat island intensity of a target area, the land coverage change and the landscape indexes is obtained through multi-data image processing and change analysis, so that the understanding on the aspects such as the change of the heat island intensity pattern caused by land utilization transformation in the processes of urban construction, transformation and renovation can be conveniently studied, and a reference is provided for implementation of the policy.

Description

technical field [0001] The invention relates to the field of urban planning research, in particular to a method for monitoring dynamic changes in urban heat island intensity. Background technique [0002] One of the typical characteristics of urban climate is the urban heat island effect, which is the phenomenon that the temperature in the city is higher than that in the suburbs. On the one hand, the formation of urban heat islands is due to the heat emitted by densely populated buildings and population gathering in large modern cities; Smaller transpiration makes the city absorb and store more solar radiation energy during the day, and the temperature of the city cools down slowly at night and is higher than that of the suburbs. The urban heat island effect has many negative effects. In summer, due to the extensive use of air conditioners, the demand for electricity is greatly increased; for example, the hot weather leads to the shortage of municipal water supply; Therefo...

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Application Information

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IPC IPC(8): G01W1/00G01J5/00
CPCG01J5/007G01W1/00G01J2005/0077G01J5/485
Inventor 胡明月潘灼坤王广兴曹斌
Owner SOUTH CHINA AGRI UNIV
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