排序方式: 共有58条查询结果,搜索用时 171 毫秒
51.
53.
54.
16 aircraft missions were conducted for the measurement of atmospheric aerosols in separatedays of late spring and early summer of 1996 and 1997.The paper deals with detailed analysis ofthe variation in vertical/horizontal distributions of the concentration of the particles and their sizedistribution at 0—5 km above ground,and with the relations to temperature and relative humiditydocumented in general.Evidence suggests that the concentrations show different distributionfeatures in vertical above and below the cap of the mixed layer:the particle size distribution issubject to a range of forming mechanisms,displaying a multi-modal pattern:the horizontalconcentration experiences remarkable variation:temperature and relative humidity stratificationshave conspicuous influence on the concentration and size distribution of aerosols. 相似文献
55.
56.
辽宁1992——1997年飞机人工增雨效果评价 总被引:2,自引:0,他引:2
通过对统计检验功效和降水自然起伏的分析,建立利用人工增雨催化效果与催化效果统计量关系的方法束评价人工增雨效果的方案。用该方案评价辽宁1992~1997年飞机人工增雨的效果,在齄出率P=0.80和0.90时.相对增雨分别为36.97%和37.64%。 相似文献
57.
58.