The Histogram of the Wind speed differences in a Short Time Regarding Weather Conditions.

Abstract

We have the statistical analysis for the amount of short time differences of wind speed, in order to discuss the criteria of regulation rules for railway operation under strong winds. We have two wind observation sites, a bridge on the sea, and a plane neighboring a mountain. We obtain the histograms of the differences of 10-minuite-maximum wind speed and 5-minuite- maximum wind speed based on the weather conditions classified into under the typhoon, in front of the front, rear of the front, under the winter type, and the others. As a result of the analysis, we find that there is a little variation on the histograms depends on the weather condition, and it is equal to or smaller than the variation depends on the observation site.