Method and device for forecasting visibility of airport
A visibility and airport technology, applied in forecasting, machine learning, instruments, etc., can solve the problems of reduced visibility forecast accuracy and large error accumulation, and achieve the effect of improving forecast accuracy
Inactive Publication Date: 2022-01-11
中国气象局公共气象服务中心
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However, the airport visibility forecast method calculates the contribution of each meteorological element to atmospheric extinction based on the atmospheric optics theory. Therefore, with the prolongation of the forecast time limit, the error accumulation will increase, which will reduce the visibility forecast accuracy.
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[0044]In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making ...
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The invention provides a method and device for forecasting the visibility of an airport. The method comprises the steps of: obtaining the current meteorological observation data of a target airport within the current hour; according to each airport visibility prediction model corresponding to the target airport obtained by pre-training, obtaining an airport future visibility optimal prediction value obtained by prediction of the airport visibility optimal prediction model based on the current meteorological observation data; acquiring an airport visibility observation value corresponding to the hour period in the hour period corresponding to predicted visibility; and for each airport visibility prediction model corresponding to the target airport, retraining the airport visibility prediction model based on the airport visibility observation value and the airport future visibility prediction value corresponding to the airport visibility prediction model. The precision of airport visibility forecasting can be improved.
Description
technical field [0001] The invention relates to the technical field of weather forecasting, in particular to a method and device for forecasting visibility at an airport. Background technique [0002] Cloud base height and visibility are important meteorological factors that affect airport operations. Among them, the influence of visibility is particularly important. Low visibility can easily make the aircraft unable to see the runway when landing, deviate from the runway, or touch down too early or too late, which is an important factor for flight safety. One of the hidden dangers. Therefore, forecasting the visibility so that corresponding measures can be taken according to the forecasted visibility can effectively improve flight safety. [0003] At present, numerical model forecasting is the main method for forecasting airport visibility. This method is mainly based on aerodynamic theory and physical and chemical processes, using various meteorological elements, and base...
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IPC IPC(8): G06Q10/04G06Q50/30G06N20/00
CPCG06Q10/04G06N20/00G06Q50/40
Inventor 张国平丁劲王曙东王阔音薛冰高金兵姜睿娇章芳
Owner 中国气象局公共气象服务中心