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Tropospheric roof wind field inversion method and device, storage medium and computer equipment

A tropopause and wind field inversion technology, which is applied in the field of meteorological remote sensing, can solve the problems that cannot meet the high temporal and spatial resolution data requirements of weather forecasting, and achieve the effect of monitoring and forecasting tropospheric weather

Pending Publication Date: 2020-06-05
NAT SATELLITE METEOROLOGICAL CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the highest resolution of the global numerical model is 0.25°, which is about 25km, and the time resolution is up to 1 hour, which cannot meet the requirements for real-time acquisition of high temporal and spatial resolution data in weather forecasting

Method used

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  • Tropospheric roof wind field inversion method and device, storage medium and computer equipment
  • Tropospheric roof wind field inversion method and device, storage medium and computer equipment
  • Tropospheric roof wind field inversion method and device, storage medium and computer equipment

Examples

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no. 1 example

[0059] figure 1 It is a schematic flowchart of a tropopause wind field inversion processing method based on a dynamic constraint meteorological satellite according to an embodiment of the present invention;

[0060] figure 2 It is a flow chart of an inversion processing method for dynamic tropopause wind field based on dynamic constraints of multi-channel scanning imaging radiometer data of Fengyun-4A star in an embodiment of the present invention;

[0061] image 3 It is the brightness temperature grayscale image of FY4A / AGRI channel 9 (water vapor channel 5.8-6.7 μm) of the embodiment of the present invention (00:00 UTC on January 21, 2018);

[0062] Figure 4 It is the ECMWF-Interim global reanalysis data (spatial resolution 0.75°×0.75°) dynamic tropopause wind field distribution map of the embodiment of the present invention (00:00 UTC on January 21, 2018)

[0063] Figure 5 It is the dynamic tropopause wind field distribution map (00:00 UTC on January 21, 2018) gene...

no. 2 example

[0121] For the method of the first embodiment, the embodiment of the present invention also provides a device for retrieving the tropopause wind field based on meteorological satellites, the device comprising:

[0122] The meteorological satellite tropopause pressure information acquisition unit is used to obtain the tropopause pressure data retrieved by the meteorological satellite;

[0123] Coriolis force calculation unit, obtain Coriolis force based on latitude;

[0124] The tropopause wind field wind speed calculation unit obtains the tropopause wind field wind speed data based on the Coriolis force and adopts the differential method;

[0125] The inversion result output unit is used to output the tropopause wind field data obtained by regression inversion, and to distinguish the wind speed of the tropopause wind field.

[0126] The specific implementation process of each unit in the above device is the content in the above method embodiment.

no. 3 example

[0128] Regarding the method of the first embodiment, the present invention also provides a storage medium, on which a computer program is stored, and when the program is executed by a processor, the tropospheric top wind based on a meteorological satellite described in any one of the contents of the first embodiment is realized. The steps of the field inversion method.

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Abstract

The invention discloses a tropospheric top wind field inversion method and device based on a meteorological satellite, a storage medium and computer equipment. The method comprises the following steps: obtaining tropospheric top air pressure data based on meteorological satellite observation data inversion, and converting the tropospheric top air pressure data from a satellite observation projection mode to an equal latitude and longitude projection mode; calculating a Coriolis force of each latitude, obtaining the wind speed component value of the tropospheric top wind field by adopting a difference method, and determining the wind speed component direction of the wind field according to the latitude value; obtaining the wind speed of the tropospheric top wind field; and outputting the tropospheric top wind field data obtained by inversion. The tropospheric top wind field result obtained through the inversion method is kept consistent with the inversion result in the prior art, so theeffectiveness is achieved; tropospheric top wind field data higher in spatial resolution and time resolution compared with an existing inversion method can be obtained, thereby facilitating the obtaining of mesoscale structure information and weather and climate characteristics of the tropospheric top.

Description

technical field [0001] The invention relates to the technical field of meteorological remote sensing, in particular to a tropopause wind field inversion method, device, storage medium and computer equipment of a meteorological satellite. Background technique [0002] The tropopause is the upper boundary of the troposphere, the transition layer between the troposphere and the stratosphere. In this region, atmospheric properties such as potential vorticity, water vapor, temperature, and chemical property levels such as ozone, sulfur dioxide, carbon dioxide, and many nitrogen oxide concentrations undergo abrupt changes. The tropopause of the atmosphere is not only affected by weather development and has diurnal variation characteristics, but also changes with latitude and seasonal changes. [0003] The momentum in the atmosphere is mainly concentrated in the upper troposphere, especially near the tropopause (about 10km), and they usually propagate forward in the form of waves ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G01W1/00G06F111/10
CPCG01W1/00
Inventor 寿亦萱陆风
Owner NAT SATELLITE METEOROLOGICAL CENT
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