Numerical weather forecast and lattice point objective forecast product optimization method

A technology for numerical weather forecasting and products, used in weather forecasting, meteorology, measuring devices, etc.

Active Publication Date: 2020-06-30
山东省气象科学研究所
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  • Abstract
  • Description
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Problems solved by technology

[0004] The present invention proposes a novel numerical weather prediction and grid-point objective forecast product selection method for the problem of how to effectively apply a large number of traditional numerical weather forecast and grid-point objective forecast products

Method used

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  • Numerical weather forecast and lattice point objective forecast product optimization method
  • Numerical weather forecast and lattice point objective forecast product optimization method
  • Numerical weather forecast and lattice point objective forecast product optimization method

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Embodiment 1

[0056] Embodiment 1, this embodiment takes the applicant's application case of a certain weather forecast optimization in Shandong Province as an example to explain the method steps and verify the effect.

[0057] From 17 to 18:00 on September 1, 2019, there was a local short-term heavy precipitation weather in Shandong Province, among which the hourly precipitation in Jinan City exceeded 10mm. This optimization method was used to optimize the precipitation forecast from 17 to 18 o'clock when the rapid update cycle assimilation forecast system (RUC) of Shandong Meteorological Research Institute was used for different times. The results show that this method can select the optimal forecast from the results of multiple different initial forecasts, and the optimal results are reasonable, which provides help for forecasters in product application. Describe in detail below, the present embodiment adopts following steps to carry out optimal operation:

[0058] (1) The optimal time ...

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Abstract

The invention belongs to the technical field of weather forecast, and relates to a numerical weather forecast and lattice point objective forecast product optimization method. The method comprises thefollowing steps: setting an optimal prediction intensity threshold and an optimal time period, processing data, identifying a target object, matching and scoring the target object, carrying out regional prediction overall evaluation, and carrying out prediction optimization. According to the method, the optimal numerical weather forecast product can be better selected, a high-quality objective product is provided for a pre-announcer, and the numerical weather forecast application capability is improved. The optimal product can also be directly applied as a lattice point objective forecastingproduct, and the weather forecasting accuracy is effectively improved.

Description

technical field [0001] The invention belongs to the technical field of weather forecasting, and relates to a numerical weather forecasting method and a method for selecting an objective forecasting product of a grid point. Background technique [0002] With the development of numerical weather prediction technology and the improvement of data assimilation level, the accuracy of numerical weather prediction is getting higher and higher, and it is playing an increasingly important role in weather forecasting operations. At present, the numerical weather predictions that can be received in the provincial weather forecasting business include global numerical weather predictions at home and abroad and domestic regional mesoscale numerical weather prediction products. These global and regional numerical weather Numerical forecasting of elements such as hourly precipitation, temperature, and wind. At the same time, in order to improve the ability to forecast the rapid development ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01W1/10
CPCG01W1/10
Inventor 盛春岩曲巧娜
Owner 山东省气象科学研究所
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