A temperature and pressure profile inversion method and system

A profile, temperature and pressure technology, applied in the field of meteorological detection, can solve the problem of time-consuming physical inversion process, and achieve the effect of speeding up the inversion speed, accurate regression system, and simplifying the inversion process

Active Publication Date: 2020-04-28
INST OF REMOTE SENSING & DIGITAL EARTH CHINESE ACADEMY OF SCI
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Problems solved by technology

However, the above physical inversion method also has shortcomings: if the object of physical inversion is a hyperspectral occultation sensor, the corresponding physical inversion process is very time-consuming

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  • A temperature and pressure profile inversion method and system
  • A temperature and pressure profile inversion method and system
  • A temperature and pressure profile inversion method and system

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Embodiment Construction

[0037] The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0038] The embodiment of the present invention provides a temperature-pressure profile inversion method. According to the occultation observation information, the corresponding training sample set is matched from the training sample library, and the corresponding training sample set is generated according to the matched training sample set and the model selected and called. Simulate the spectrum, and then combine the selected statistical regression model to calculate the regression coefficient of the corresponding observation spectrum, so that the inversion method of the temperature and pressure profile provided by the invention can be applied to the sensor of the occultation observation geometry, which solves the problem of existing The dimensionality of the temperature-pressure profile regression system of the statist...

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Abstract

The invention relates to an inversion method and system of temperature and pressure profiles. The method includes: retrieving corresponding data from a data set according to selected month information and longitude and latitude information, and carrying out classification and library storage on the retrieved data to obtain a corresponding training sample library; obtaining a corresponding training sample set from the training sample library by matching according to occultation observation information, and generating a corresponding simulation light spectrum according to the training sample set obtained by matching and a model invoked for selection; and calculating and obtaining a regression coefficient of a corresponding observation spectrum according to the training sample set obtained by the matching, the corresponding simulation spectrum and a selected statistical regression model, and calculating and obtaining the corresponding temperature and pressure profiles according to a regression system and the satellite observation spectrum. The inversion method of the temperature and pressure profiles of the invention is suitable for use in a sensor of occultation observation geometry, and meets requirements of the service running system timeliness at the same time.

Description

technical field [0001] The invention relates to the technical field of meteorological detection, in particular, the invention relates to an inversion method and system for a temperature-pressure profile. Background technique [0002] With existing techniques, temperature and pressure profiles are necessary atmospheric parameters for trace gas inversion. The accuracy of temperature and pressure parameters will affect the accuracy of atmospheric composition retrieval. Currently, using CO 2 The temperature-pressure inversion of the absorption channel is a routine practice. Commonly, for temperature and pressure profiles, there are two inversion methods based on statistics and inversion methods based on physics. [0003] Since the statistical inversion method can simplify the inversion process and speed up the inversion speed, it is suitable for operating systems that require timeliness in the inversion of atmospheric parameters. Specifically, statistical inversion methods i...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20
CPCG06F30/20
Inventor 李小英王雅鹏王红梅朱松岩苗晶
Owner INST OF REMOTE SENSING & DIGITAL EARTH CHINESE ACADEMY OF SCI
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