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Method and device for identifying spatial distribution area of meteorological element field

A technology of meteorological elements and spatial distribution, applied in meteorology, measuring devices, character and pattern recognition, etc., can solve the problems of low accuracy and achieve high accuracy

Inactive Publication Date: 2022-07-29
CHENGDU UNIV OF INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, if the existing rainfall forecast is mainly a probabilistic forecast result within a region, the accuracy rate is low

Method used

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  • Method and device for identifying spatial distribution area of meteorological element field
  • Method and device for identifying spatial distribution area of meteorological element field
  • Method and device for identifying spatial distribution area of meteorological element field

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Embodiment 1

[0026] see figure 1 , figure 1 Shown is a flowchart of the method for identifying the spatial distribution area of ​​the meteorological element field in this embodiment. This embodiment provides a method for identifying a spatial distribution area of ​​a meteorological element field, and the method includes step S1, step S2, step S3, step S4 and step S5.

[0027] Step S1: Obtain meteorological observation data corresponding to at least two different time parameters.

[0028] It can be understood that in this step, the visible light, infrared and microwave radiation of the earth and its atmosphere are received and measured in real time based on various meteorological remote sensors carried by the meteorological satellite, and are converted into electrical signals and transmitted to the ground for observation. The station, the observation station restores the electrical signals from the meteorological satellites and draws them into various cloud, ground and sea surface picture...

Embodiment 2

[0090] Please refer to figure 2 , figure 2 Shown is a schematic structural diagram of the apparatus 100 for identifying the spatial distribution area of ​​the meteorological element field in this embodiment, the apparatus includes an acquisition module 110, a first classification module 120, a second classification module 130, a fitting module 140 and an identification module 150, wherein :

[0091] Obtaining module 110: used to obtain meteorological observation data corresponding to at least two different time parameters.

[0092] The first classification module 120 is configured to obtain a set of pixels based on all the meteorological observation data, the time parameters and preset classification conditions, where the set of pixels is the first target set corresponding to different time parameters , the first target set includes at least one first pixel, and each of the first pixels is a binary value of a feature pixel and a non-feature pixel obtained based on the mete...

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Abstract

The embodiment of the invention discloses an identification method and device for a spatial distribution area of a meteorological element field, and belongs to the technical field of weather forecast. Based on the method provided by the invention, a field space distribution area of meteorological elements such as high and low temperatures and rainfall can be quickly fitted and identified, and on the basis of time parameters and meteorological observation data, nowcasting of convective weather in key periods and key areas can be realized; and the weather forecast is obtained by deducing the evolution process of the meteorological element observation object based on a time sequence instead of a probabilistic forecast result in a regional range, so that the accuracy is high, weather change can be coped and early warning can be carried out based on an identification result, and the method can also be used for researching a mechanism influencing weather change formation.

Description

technical field [0001] The invention mainly relates to the technical field of meteorological forecasting, in particular to a method and device for identifying the spatial distribution area of ​​a meteorological element field. Background technique [0002] In the context of global climate change, the frequency of extreme weather has increased in recent years. The current heat wave is sweeping the world, and extreme high temperatures have occurred in many areas, which has changed the previous pattern of atmospheric circulation and is one of the important reasons for the above extreme weather. Meteorological disaster prevention and mitigation has put forward higher and higher requirements for the monitoring, forecasting and early warning capabilities of severe weather and meteorological disasters, and the demand for convective weather nowcasting in key periods and areas is even more urgent. However, for example, the existing rainfall forecast is mainly a probabilistic forecast...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01W1/10G06V10/26G06V10/764G06V20/70G06K9/62
CPCG01W1/10G06V10/764G06V10/26G06V20/70G06F18/24
Inventor 蔡宏珂祝宣浩毛雅琴
Owner CHENGDU UNIV OF INFORMATION TECH
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