Method for correcting forecast wind speed of site

Abstract

The invention provides a method for correcting a forecast wind speed of a site. The method comprises the following steps: Step 1, setting an independent variable xm and a dependent variable yp, establishing a statistical equation: yp=[sigma]bm, txm, t+[epsilon]p; Step 2, extracting a first component [mu]1 of the independent variable in a set X of the independent variable xm, establishing a regression equation: X=B1[mu]1, Y=B1[mu]1, and stopping calculation if the regression equation passes through cross validation, otherwise performing Step 3; Step 3, performing a second component extraction on residual information eX after X is interpreted by [mu]1 to obtain a second regression equation: X=B1[mu]1+B2[mu]2, Y=B1[mu]1+B2[mu]2, and stopping calculation if the regression equation passes through the cross validation, otherwise performing a next extraction until passing through the cross-validation; and Step 4, obtaining a final regression equation of Y (as shown in the specification), andcorrecting the forecast wind speed at time t0 with the regression equation. According to the method for correcting the forecast wind speed of the site, more accurate wind speed forecast results can beprovided for the automatic meteorological site.

Description

technical field [0001] The invention relates to a meteorological data processing method, in particular to a station forecast wind speed correction method. Background technique [0002] The wind speed forecast is mainly based on grid-based numerical weather forecast, while the wind speed forecast at the station is interpolated to the site through the grid forecast, which does not take into account the ambient temperature, air pressure, humidity and other influencing factors near the meteorological station, resulting in the current The wind speed forecast errors of automatic weather stations are relatively large. Contents of the invention [0003] The purpose of the present invention is to provide a kind of station forecast wind speed correction method, to reduce station forecast wind speed error, provide more accurate wind speed forecast result for automatic meteorological station. [0004] In order to achieve the above object, the present invention adopts following techni...

AI Technical Summary

Problems solved by technology

[0002] The wind speed forecast is mainly based on grid-based numerical weather forecast, while the wind speed forecast at the station is interpolated to the site through the grid forecast, which does not take into account the ambient temperature, air pressure, humidity and other influencing factors near the meteorological station, resulting in the current The forecast wind speed error of automatic weather stations is relatively large

Images