The results show that the annual fog days over the three stations basically have the same variation trend in the pattern of "W",and local maximum values increase significantly.
结果表明:三站年雾日数变化趋势基本一致,呈"W"状,局部峰值明显升高。
The followingcontents were studied in the thesis: ①The meteorological factors’ variation trend of Shiyang River Basin in the recent 50years was analyzed.
本文进行了下述研究: ①分析了石羊河流域各站近 50 年气象要素的变化趋势。