Infrared brightness temperature simulation method fusing numerical mode and satellite microwave cloud inversion data

A numerical simulation and numerical model technology, applied in the field of atmospheric science research, can solve the problems of large simulation error, unsatisfactory satellite infrared brightness temperature simulation effect, large cloud effect error, etc., achieve high accuracy, reduce simulation error, The effect of improving accuracy

Pending Publication Date: 2021-07-13
南京气象科技创新研究院
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Problems solved by technology

[0006] The existing satellite infrared brightness temperature simulation method uses the simulated data of the numerical model as the input profile. When in the cloudy area, the numerical model has a large error in simulating the structure and distribution of cloud water, cloud ice and rainwater. If the numerical model If the data is directly applied without correction, it will lead to a large error in the description of the cloud effect in the radiative transfer simulation, resulting in an unsatisfactory simulation effect of the satellite infrared brightness temperature

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  • Infrared brightness temperature simulation method fusing numerical mode and satellite microwave cloud inversion data
  • Infrared brightness temperature simulation method fusing numerical mode and satellite microwave cloud inversion data
  • Infrared brightness temperature simulation method fusing numerical mode and satellite microwave cloud inversion data

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Embodiment Construction

[0099] The technical method of the present invention will be described in detail below with the accompanying drawings, but the protection scope of the present invention is not limited to the embodiments.

[0100] A method for simulating infrared brightness temperature by fusing numerical models and satellite microwave cloud retrieval data, comprising the following steps:

[0101] Step 1. Preprocessing the WRF numerical simulation data and satellite ATMS microwave cloud inversion data;

[0102] The preprocessing of the WRF numerical simulation data is to preprocess the simulated data of the WRF numerical weather prediction model, including extracting atmospheric conventional elements, surface elements and atmospheric cloud water material elements; the preprocessing of the satellite ATMS microwave cloud inversion data Processing is to preprocess the ATMS microwave cloud inversion data generated by the MiRS system, including extracting atmospheric cloud water material elements; ...

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Abstract

The invention discloses an infrared brightness temperature simulation method fusing a numerical mode and satellite microwave cloud inversion data, and relates to the field of atmospheric science research, and the method specifically comprises the following steps: 1) preprocessing WRF numerical simulation data and satellite ATMS microwave cloud inversion data; 2) performing quality control on satellite ATMS microwave cloud inversion data; and 3) performing data fusion on the WRF numerical simulation data and the satellite ATMS microwave cloud inversion data after quality control to obtain a fusion analysis field of atmospheric cloud water, cloud ice and rainwater; and 4) extracting atmospheric conventional elements of the numerical simulation data and atmospheric cloud water substance elements of the fusion analysis data as vertical profiles, taking the vertical profiles as input profiles of a radiation transfer model (CRTM), calculating a satellite infrared simulation brightness temperature on each lattice point, and converting a satellite infrared simulation brightness temperature value to a CrIS view field by adopting a view field matching technology of CrIS observation and lattice point data. According to the invention, the simulation level of the clouded region is improved.

Description

technical field [0001] The invention relates to the field of atmospheric science research, specifically an infrared brightness temperature simulation method that integrates numerical models and satellite microwave cloud inversion data. The method is mainly aimed at the brightness temperature of the CrIS infrared hyperspectral detection channel of the Suomi-NPP polar orbit satellite. mock method. Background technique [0002] With the continuous development of meteorological polar-orbiting satellite observation technology, infrared sounder and hyperspectral sounder data have been widely used in the fields of weather monitoring, weather warning, climate analysis and numerical weather prediction. Compared with traditional infrared sounders, infrared hyperspectral sounders have more channels, and channels of different frequencies are sensitive to different levels of the surface or atmosphere, making them an important source of observational information in numerical weather predi...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20
CPCG06F30/20G06F2111/10G06F2119/08
Inventor 李昕曾明剑汪宁唐飞诸葛小勇邹晓蕾
Owner 南京气象科技创新研究院
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