All-weather surface temperature inversion method and system

A technology of surface temperature and surface temperature, which is applied in the field of remote sensing data analysis and processing, can solve problems such as missing and affecting large-scale all-weather surface temperature reconstruction, and achieve the effect of overcoming inaccurate inversion data

Active Publication Date: 2020-09-11
BEIJING NORMAL UNIVERSITY
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to solve the technical problem that the large-scale all-weather surface temperature reconstruction is affected due to the lack of data of the passive microwave data of the surface temperature

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  • All-weather surface temperature inversion method and system
  • All-weather surface temperature inversion method and system
  • All-weather surface temperature inversion method and system

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Embodiment Construction

[0042] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of systems consistent with aspects of the invention as recited in the appended claims.

[0043] see figure 1 with 2 According to one aspect of the present invention, a method for inversion of all-weather land surface temperature is provided, comprising the following steps:

[0044] S1: Obtain data related to land surface temperature, including: thermal infrared surface temperature data, passive microwave data, surface temperature reanalysis data, normalized difference vegetation index and digital...

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Abstract

The invention discloses an all-weather surface temperature inversion method and system, and the method comprises the steps: obtaining surface temperature-related data which comprises thermal infraredsurface temperature data, passive microwave data, surface temperature reanalysis data, a normalized vegetation index, and digital elevation model data; if the passive microwave data has a value, predicting the surface temperature based on a random forest model; and if the passive microwave data is missing, predicting the surface temperature based on the temperature annual cycle model. According tothe technical scheme, the problem of inaccurate surface temperature inversion data caused by passive microwave data loss of the surface temperature is solved, and the all-weather surface temperaturecan be efficiently and accurately predicted.

Description

technical field [0001] The present invention relates to the field of remote sensing data analysis and processing, in particular, to an all-weather surface temperature retrieval method and system, and more specifically, to an all-weather model based on a random forest model and an annual temperature cycle model (RF-ATC) Method and system for inversion of land surface temperature. Background technique [0002] Land surface temperature (LST) is the thermodynamic surface temperature of the land surface obtained through remote sensing technology, which is closely related to the surface energy budget and water balance of the Earth system. Among them, all-weather surface temperature has been widely used in many research fields such as climate change, agricultural monitoring, urban heat island, fire detection, public health and environmental issues because of its ability to fully describe temperature changes. Due to the temporal and spatial variation of solar radiation, the instabi...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q10/06G01K13/00G01J5/00
CPCG06Q10/04G06Q10/067G01K13/00G01J5/00Y02A90/10
Inventor 陈云浩李康宁
Owner BEIJING NORMAL UNIVERSITY
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