菏泽市紫外线辐射指数特征分析

摘要

By using ultraviolet radiation data in Heze City during 2007 - 2012, the annual, seasonal and daily variation characteristics of ultraviolet index intensity were analyzed. As indicated by data statistic analysis, the highest ultraviolet radiation intensity of Heze can reach a lever of five. In a year, there are the most days when the intensity UV index can reach a lever of IV in a ratio of 43%. The average intensity of UV index is 6.9 in 5uramer(during June to August) The average intensity of UV index is 5.2 in winter(December to February). The trends of diurnal UV intensity variation like a parabola. The time when the ultraviolet intensity reached the maximum value is during 11:00 -14:00.%利用菏泽市2007～2012年紫外线辐射数据,分析其紫外线指数强度的年、季节、日变化特征.通过数据统计分析得出,菏泽市紫外线辐射强度最高可这Ⅴ级,紫外线辐射指数强度达到Ⅳ级别的日数最多,约占全部的43％.菏泽市夏季(6～8月)紫外线平均指数强度为6.9,冬季(12月～次年2月)紫外线平均指数强度为5.2.菏泽市日紫外线变化规律呈抛物线型,11:00 ～ 14:00达最大值.