Land surface temperature data-based method for monitoring production intensity of heat production enterprise

Abstract

The invention belongs to the field of spatial information technology application, and discloses a land surface temperature data-based method for monitoring the production intensity of a heat production enterprise. The method includes the following steps: 1, acquiring the surface temperature data, the high-resolution remote sensing image and the vector data in a monitoring area coverage within a monitoring time period; 2, preprocessing the surface temperature data; 3, extracting the maximum land temperature of the heat production enterprise and an average temperature in a buffer area, and calculating the daytime relative temperature and the nighttime relative temperature of the heat production enterprise; 4, selecting the reference area and the buffer area of the heat production enterprise, and calculating the daytime relative temperature and the nighttime relative temperature in the reference area; and 5, calculating the daytime temperature difference and the nighttime temperature difference of the heat production enterprise, carrying out linear fitting, and determining the production intensity of the heat production enterprise by using a fitting slope. The method realizes the simultaneous monitoring of multiple targets in a large area over a long time period, directly reflects the production intensity of the heat production enterprise in a certain period of time, and ensures the accuracy, the continuity and the reliability of a monitoring result.

Description

technical field [0001] The invention belongs to the application field of space information technology and relates to a method for monitoring production intensity of heat-producing enterprises based on surface temperature data. Background technique [0002] Cement, casting, steel, thermal power, coking and other key heat-producing enterprises, which are commonly referred to as "elevated source" enterprises, generally emit pollutants through high chimneys, which are heavy polluting industries with relatively large emissions. During the production period of this type of enterprise, in addition to emitting a large amount of visible smoke and dust, it will also generate high heat, which makes the production intensity reflected in the fluctuation of the surface temperature. [0003] For the monitoring of the production intensity of heat-producing enterprises, conventional methods are mostly based on field survey statistics of enterprises or optical remote sensing means. Remote se...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the production status monitoring time of heat-producing enterprises is discontinuous and the reliability is poor, and it is impossible to determine the production intensity of heat-producing enterprises

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