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Light rain air elimination method and air elimination system suitable for grid forecasting, electronic equipment and storage medium

A light rain and grid technology, which is applied in weather forecasting, complex mathematical operations, measuring devices, etc., and can solve problems such as loss of spatial correlation and loss of time continuity of continuous forecast aging.

Pending Publication Date: 2020-05-15
北京玖天气象科技有限公司 +1
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Problems solved by technology

Statistical downscaling usually establishes regression equations for each individual spatial point and individual forecast time, which will lead to the loss of the spatial correlation of adjacent grid points in the precipitation forecast field and the loss of the time continuity of the continuous forecast time.

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  • Light rain air elimination method and air elimination system suitable for grid forecasting, electronic equipment and storage medium
  • Light rain air elimination method and air elimination system suitable for grid forecasting, electronic equipment and storage medium
  • Light rain air elimination method and air elimination system suitable for grid forecasting, electronic equipment and storage medium

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Embodiment Construction

[0045] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure, and to fully convey the scope of the present disclosure to those skilled in the art.

[0046] Those skilled in the art can understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art to which this invention belongs. It should also be understood that terms, such as those defined in commonly used dictionaries, should be understood to have meanings consistent with the meanings in the c...

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Abstract

The invention relates to the technical field of meteorological prediction, in particular to a light rain air elimination method and system suitable for grid prediction, electronic equipment and a storage medium. The invention discloses a light rain air elimination method and system suitable for grid forecasting, electronic equipment and a storage medium. The emptying method comprises the followingsteps: emptying; fitting meteorological data related to rainfall into a logistic function to obtain a regression coefficient, converting a numerical result into a probability between 0 and 1 so as topredict an event occurrence probability, and judging a rainfall event with a small probability as no rainfall so as to solve a light rain air report problem; when the probability of occurrence of therainfall event is greater than or equal to 0.5, it is considered that rainfall occurs, and the original rainfall forecast value is kept unchanged; and when the probability of occurrence of the rainfall event is less than 0.5, it is considered that no rainfall occurs, and the rainfall forecast value is corrected to be 0, so that troubles caused by a light rain air report problem in professional meteorological services are solved, and the rainfall product forecast performance is improved.

Description

technical field [0001] The invention relates to the technical field of meteorological forecasting, in particular to a light rain elimination method suitable for grid forecasting, an elimination system, electronic equipment and a storage medium. Background technique [0002] Improving the accuracy of precipitation forecast has always been the focus of meteorological scientific research and operational work. However, this work is quite difficult and challenging, because precipitation is the result of the interaction of weather systems at different scales, its temporal and spatial distribution is relatively complex, and its statistical characteristics are different on different time scales. For example, annual precipitation or seasonal precipitation may obey the normal The distribution of daily precipitation or the precipitation in shorter time scales is skewed. In recent years, numerical weather prediction has gradually changed from a single forecasting source to multi-member...

Claims

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Application Information

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IPC IPC(8): G06F17/18G01W1/10
CPCG06F17/18G01W1/10
Inventor 唐娴何晓凤郭鹏刘准李哲王洁黄凤新
Owner 北京玖天气象科技有限公司
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