干旱区生态环境知识资源中心(Arid): 塔克拉玛干沙漠腹地沙尘气溶胶质量浓度垂直分布特征

Arid

	塔克拉玛干沙漠腹地沙尘气溶胶质量浓度垂直分布特征
其他题名	Vertical Distribution of Dust Aerosol Mass Concentration in Hinterland of the Taklimakan Desert
	刘新春; 钟玉婷; 何清; 杨兴华; 艾力·买买提明
来源期刊	中国沙漠
ISSN	1000-694X
出版年	2012
卷号	32 期号:4 页码:1045-1052
中文摘要	利用Grimm 1.108、Thermo RP 1 400a以及TSP等仪器于2009年1月至2010年2月对塔克拉玛干沙漠腹地塔中不同高度沙尘气溶胶质量浓度进行连续观测,结合天气资料进行分析。结果表明:①80m高度PM_(10)质量浓度最高,80m高度PM_(2.5)和PM_(1.0)质量浓度明显低于4m高度PM_(10),80m高度PM_(1.0)质量浓度最低。频繁的沙尘天气是影响不同粒径的沙尘气溶胶浓度含量的主要因素。②夜间至日出,PM质量浓度逐渐降低,最低基本上出现在08:00,随后质量浓度逐渐增大,18:00前后浓度达到最高值,然后又逐步降低。其规律与风速的昼夜变化完全一致。③TSP月平均质量浓度高值主要集中在39月,其中4月和5月浓度最高,随后逐渐减低。39月也是PM月平均质量浓度的高值区域,4m高度PM_(10)月平均质量浓度最高发生在5月,其浓度为846.0mug·m~(-3)。80m高度PM_(10)浓度远高于PM_(2.5)和PM_(1.0)浓度,PM_(2.5)和PM_(1.0)浓度相差较小。风沙天气对大气中的不同粒径粒子的浓度含量影响较大,风沙天气越多,粗颗粒含量越高,反之则细颗粒越多。④沙尘天气过程中不同粒径沙尘气溶胶质量浓度变化具有晴天<浮尘天气<扬沙天气<沙尘暴天气的规律。各种沙尘天气中,PM_(10)/TSP表现为晴好天气高于浮尘天气,浮尘天气远高于扬沙和沙尘暴天气。⑤沙尘天气过程中,沙尘气溶胶浓度随着粒径的减小,浓度逐渐降低。不同高度、不同粒径的沙尘气溶胶质量浓度每隔3~4d形成一个峰值区,与每隔3~4d出现沙尘天气强度增强过程直接相关。
英文摘要	The mass concentration of dust aerosol at different heights were observed continuously from January 2009 to February 2010 in the Tazhong Atmosphere Environment Observation Station in the Taklimakan Desert hinterland by making use of instruments of Grimm 1.108 Grain Size Analyzer,Thermo RP 1 400 a particle monitor,and TSP sampler.Some results are obtained as follows:(1) The mass concentration of PM_(10) at 80-m height was the highest,but the mass concentration of PM_(2.5)or PM_(10) at 80-m height was lower obviously than that of PM_(10) at 4-m height,and the mass concentration of PM_(1.0) at 80 m height was the lowest.Occurrence of frequent dust weather events has resulted in the above mass concentration pattern.(2) The PMx mass concentration gradually decreased from midnight to sunrise with the lowest value at 08:00,and then the mass concentration gradually increased with the highest concentration around 18:00,and then decreased again.It was exactly the same with the change of wind speed.(3) High monthly average mass concentration of TSP mainly appeared from March to September,and the highest concentration was in April and May.Also,high monthly average mass concentration of PMx mainly appeared from March to September,with the highest PM_(10) concentration of 846.0 mug·m~(-3) at 4 m height appeared in May.(4) The aerosol mass concentration of different diameters in the sand weather follows an order of in clear day
中文关键词	沙尘气溶胶 ; 沙尘天气 ; 质量浓度 ; 垂直分布 ; 塔克拉玛干沙漠
英文关键词	dust aerosol dust weather mass concentration vertical distribution the Taklimakan Desert
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENVIRONMENTAL SCIENCES
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:4561748
来源机构	中国气象局乌鲁木齐沙漠气象研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/229034
作者单位	中国气象局乌鲁木齐沙漠气象研究所, 新疆树木年轮生态实验室;;中国气象局树木年轮理化研究重点开放实验室, 乌鲁木齐, 新疆 830002, 中国
推荐引用方式 GB/T 7714	刘新春,钟玉婷,何清,等. 塔克拉玛干沙漠腹地沙尘气溶胶质量浓度垂直分布特征[J]. 中国气象局乌鲁木齐沙漠气象研究所,2012,32(4):1045-1052.
APA	刘新春,钟玉婷,何清,杨兴华,&艾力·买买提明.(2012).塔克拉玛干沙漠腹地沙尘气溶胶质量浓度垂直分布特征.中国沙漠,32(4),1045-1052.
MLA	刘新春,et al."塔克拉玛干沙漠腹地沙尘气溶胶质量浓度垂直分布特征".中国沙漠 32.4(2012):1045-1052.