【摘 要】
：
利用塔克拉玛干沙漠大气环境观测试验站探测的辐射数据,分析了流动沙漠区近地层辐射收支特征以及云和沙尘对其的影响。总辐射在夏季某些特定的天气条件下接近太阳常数。不同天气条件下,辐射收支特征存在较大差异;总辐射受云和沙尘的影响最明显,变幅最大,夏季沙尘暴天气时比晴天减少了80%以上;反射辐射的日变化趋势在各个季节内、各种天气条件下与总辐射非常一致;大气长波辐射所受影响较小,且云和沙尘会使其略微增加;地面
论文部分内容阅读
利用塔克拉玛干沙漠大气环境观测试验站探测的辐射数据,分析了流动沙漠区近地层辐射收支特征以及云和沙尘对其的影响。总辐射在夏季某些特定的天气条件下接近太阳常数。不同天气条件下,辐射收支特征存在较大差异;总辐射受云和沙尘的影响最明显,变幅最大,夏季沙尘暴天气时比晴天减少了80%以上;反射辐射的日变化趋势在各个季节内、各种天气条件下与总辐射非常一致;大气长波辐射所受影响较小,且云和沙尘会使其略微增加;地面长波辐射的变化幅度最小,均在10%以下;净辐射在阴天时略微降低,沙尘天气时明显降低,为负值。观测期间的平
其他文献
The Bohai Rim region is one the most important bases for commodity grain pro-duction in China.With the rapid pace of agricultural industrialization,nitrogenous fertilizer has been used at an ever incr
The Road to Rio+20 is the journey of countries in the world pursuing the sustainable development.As the first country to release the national Agenda 21,Chinas experience and lessons are of great signi
During the 15th Conference of the Parties(COP 15),Parties agreed that reducing emissions from deforestation and forest degradation and enhancing removals of greenhouse gas emission by forests(REDD+) i
Urban air pollution is a commonly concerned environmental problem in the world.Identification of air quality trend using long-term monitoring data is helpful to understand the effectiveness of polluti
利用2009年塔里木盆地的塔中、铁干里克、喀什和民丰4个观测站采集的总悬浮颗粒物(TSP)观测资料,同时结合水溶性无机离子成分分析,研究了塔里木盆地TSP时空分布特征及无机离子浓度特征。结果表明:①塔中、铁干里克、喀什和民丰观测站TSP月平均质量浓度具有相同的变化趋势,峰值区都在4—5月,而低值区为11—12月,季平均质量浓度变化趋势为春季最高,夏季和秋季次之,冬季最低。②TSP中水溶性无机离子年
Batch experiments were conducted to study the effects of low-molecular-weight organic acids(LMWOAs) on desorption of Hg from two kinds of soils in the eastern Shandong Province,China.Of all LMWOAs,oxa
Three-River Headwaters(TRH) region involved in this paper refers to the source region of the Changjiang(Yangtze) River,the Huanghe(Yellow) River and the Lancang River in China.Taking the TRH region of
This study focuses on the suburbanization and subcentering of population and examines the nature of spatial restructuring in terms of the population distribution in the Beijing metropolitan area.Inste
On the basis of rural household survey in 12 provinces of China in 2005,this research built an econometrical model to find the area standard for rural housing land.This standard is expected to facilit
欧洲将面向社会公开公共数据欧洲委员会即将向社会公众开放商业或非商业用途的对公共数据的访问,并且呼吁国家政府部门参考这一运作模式。公共数据包括欧共体公共机构所生产、收集或购买的相关数据和信息,包括地理数据、统计数据、气象数据、公开资助课题所获得数据,以及图书馆的数字化图书等。