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Atmospheric temperature and humidity profile inversion method and system for ground-based microwave radiometer without sounding site based on reanalysis data

A microwave radiometer and reanalysis technology, applied in the field of meteorological observation, can solve the problem of low inversion accuracy of microwave radiometer, and achieve the effect of improving real-time monitoring and inversion accuracy

Pending Publication Date: 2022-08-09
南京星图空间信息科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to overcome the deficiencies in the prior art, to provide a method for reanalyzing data instead of sounding data to establish the atmospheric temperature and humidity profile inversion method for ground-based microwave radiometers without sounding stations, so as to solve the problem of ground-based microwave radiation without sounding stations. The problem of low accuracy of meter inversion

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  • Atmospheric temperature and humidity profile inversion method and system for ground-based microwave radiometer without sounding site based on reanalysis data
  • Atmospheric temperature and humidity profile inversion method and system for ground-based microwave radiometer without sounding site based on reanalysis data
  • Atmospheric temperature and humidity profile inversion method and system for ground-based microwave radiometer without sounding site based on reanalysis data

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Embodiment 1

[0087] This embodiment proposes a method for inversion of atmospheric temperature and humidity profiles of ground-based microwave radiometers without sounding stations based on reanalysis data, and establishes atmospheric temperature and humidity profiles of ground-based microwave radiometers without sounding stations by replacing sounding data with reanalysis data Inversion model to solve the problem of low inversion accuracy of ground-based microwave radiometers without radiosonde sites.

[0088] Among them, the technical key points and innovation are reflected in: how to solve the problem of representativeness of reanalysis data and sounding data, and how to select appropriate reanalysis data to establish an atmospheric temperature and humidity profile model representative of the meteorological characteristics of the site. By analyzing the consistency between the reanalysis data and the observed brightness temperature, a quality control plan for the reanalysis data is propos...

Embodiment 2

[0158] The present embodiment provides a reanalysis data to replace the sounding data to establish a ground-based microwave radiometer atmospheric temperature and humidity profile inversion system without radiosonde sites, including:

[0159] Information acquisition module: used to acquire the observed brightness temperature of the ground-based microwave radiometer;

[0160] Quality control module: used to perform quality control and deviation correction on the observed brightness temperature of the ground-based microwave radiometer, and obtain the observed brightness temperature after quality control and deviation correction;

[0161] Inversion module: used to input the observed brightness temperature after the quality control and deviation correction into the inversion model, and obtain the atmospheric temperature and humidity profile through inversion;

[0162] Model building module: It is used to establish an inversion model based on neural network algorithm, and build a t...

Embodiment 3

[0165] The present embodiment provides a reanalysis data instead of sounding data to establish an atmospheric temperature and humidity profile inversion system without a radiosonde station ground-based microwave radiometer, including a processor and a storage medium;

[0166] the storage medium is used for storing instructions;

[0167] The processor is configured to operate according to the instructions to execute the steps of the method of the first embodiment.

[0168] As will be appreciated by those skilled in the art, the embodiments of the present application may be provided as a method, a system, or a computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited...

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Abstract

The invention provides an atmospheric temperature and humidity profile inversion method and system for a ground-based microwave radiometer without a sounding site based on reanalysis data. The inversion algorithm comprises two parts of inversion model establishment and actual inversion. The specific technical route is as shown in Figure 1, an establishment process of an atmospheric temperature and humidity profile inversion model is represented in a gray frame, and quality control is performed on reanalysis data ERA5 so as to solve the problem of representativeness of the ERA5 data. Secondly, inputting the quality-controlled ERA5 into an atmospheric radiation transfer model MONORTM to obtain a simulated brightness temperature corresponding to a detection wave band of a microwave radiometer, forming a sample pair by the simulated brightness temperature and an atmospheric temperature and humidity profile in ERA5 data, and establishing an inversion model based on a neural network algorithm; the yellow part is an actual inversion part of the ground-based microwave radiometer in business operation, performing quality control and deviation correction on the observation brightness temperature of the ground-based microwave radiometer, and inputting the observation brightness temperature after quality control and deviation correction into the established inversion model to obtain the atmospheric temperature and humidity of each atmospheric layer.

Description

technical field [0001] The invention relates to a method for inversion of atmospheric temperature and humidity profiles of ground-based microwave radiometers without sounding stations established by reanalysis data instead of sounding data, and belongs to the technical field of meteorological observation. Background technique [0002] The urbanization process has changed the heat exchange between the land surface and the atmosphere, causing changes in regional meteorological elements, which are prone to natural disasters such as thunderstorms, hail, and extreme rainstorms. The atmospheric temperature and humidity profile describes the atmospheric thermal state and humidity changes, and the accurate detection of the continuously changing atmospheric temperature and humidity profile is helpful for the monitoring and forecasting of these meteorological disasters. [0003] At present, sounding balloons are the most accurate and effective means to obtain atmospheric temperature a...

Claims

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Application Information

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IPC IPC(8): G06F30/27G06N3/04G06N3/08G01W1/00G06F119/14G06F119/08
CPCG06F30/27G06N3/04G06N3/084G01W1/00G06F2119/14G06F2119/08Y02A90/10
Inventor 朱柳桦鲍艳松
Owner 南京星图空间信息科技有限公司