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原文传递 A BASIC STUDY OF SHORT TERM FORECASTING METHODS OF SNOWFALL AND ROAD SURFACE TEMPERATURE USING INTELLIGENT VISIBILITY METER.

题名：	A BASIC STUDY OF SHORT TERM FORECASTING METHODS OF SNOWFALL AND ROAD SURFACE TEMPERATURE USING INTELLIGENT VISIBILITY METER.
作者：	Numata-M; Okamoto-J; Tashiro-T; Ito-T
关键词：	Highway-traffic-control; Intelligent-control-systems; Pavements-; Precipitation-Meteorology; Road-weather-information-systems; Snowfall-; Surface-course-Pavements; Temperature-measurement; Visibility-distance; Weather-forecasting; Winter-
摘要：	Snowfall forecasting and road surface temperature forecasting are important subjects to ensure the security of comfortable winter road traffic condition and control management of winter road conditions. In some conventional methods, the snowfall forecasting methods of 12 hours to 24 hours later have been developed by the use of correlation between upper-air layer observation and ground snowfall observation. To reduce the time of forecasting, a system was developed using radar data. However, the method has some problems in narrowness of forecasting range, in equipment cost and in development cost. This research examined the possibility of very short term forecasting of snowfall and road surface temperature by using the observation of the Intelligent Visibility Meter which has functions to calculate precipitation type and intensity. Results show that forecasting precision can be improved by this newly developed method.
总页数：	Conference Title: 11th International Road Weather Conference (http://www.sirwec.org). Location: Sapporo, Japan. Sponsored by: Standing International Road Weather Commission. Held: 20020126-20020128. 2002/01. pp8
报告类型：	科技报告