Arid
DOI10.1088/1755-1315/28/1/012006
Analysis of atmospheric vertical profiles in the presence of desert dust aerosols
Costa, M. J.1; Obregon, M. A.2; Pereira, S.2; Salgueiro, V.2; Potes, M.2; Couto, F. T.2; Salgado, R.1; Bortoli, D.2; Silva, A. M.2
通讯作者Costa, M. J.
会议名称3rd Iberian Meeting on Aerosol Science and Technology (RICTA)
会议日期JUN 29-JUL 01, 2015
会议地点Elche, SPAIN
英文摘要

The present work aims at studying a very recent episode of desert dust transport that affected Iberia in mid May 2015. The dust aerosols were detected over Evora, where a varied set of instrumentation for aerosol measurements is installed, including: a CIMEL sunphotometer integrated in AERONET, a Raman Lidar and a TEOM monitor, as well as ceilometer and a microwave radiometer (profiler). The aerosol occurrence, detected using the columnar, vertically-resolved and in situ measurements, was characterized by a fairly high aerosol optical thickness that reached a value of 1.0 at 440 nm and showed mass concentration peaks at the surface of the order of 100. mu g/m(3). Subsequently, the tropospheric vertical profiles of humidity and temperature obtained with the passive microwave (MW) radiometer are analysed in order to distinguish possible modifications that can be connected with the transport of desert dust. Modelling results are also examined and the total, SW and LW radiative forcings are investigated, taking into account the different vertical profiles obtained during the desert dust occurrence. It is found that the differences in the atmospheric profiles mostly affect the LW radiative forcing, with an underestimation of about 30% when the actual vertical profile is not considered.


来源出版物3RD IBERIAN MEETING ON AEROSOL SCIENCE AND TECHNOLOGY (RICTA 2015)
ISSN1755-1307
出版年2015
卷号28
EISBN*****************
出版者IOP PUBLISHING LTD
类型Proceedings Paper
语种英语
国家Portugal
收录类别CPCI-S
WOS记录号WOS:000368258000006
WOS关键词NETWORK
WOS类目Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
资源类型会议论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/303766
作者单位1.Univ Evora, Dept Fis, Inst Ciencias Terra Polo Evora, Escola Ciencias & Tecnol, Evora, Portugal;
2.Univ Evora, Dept Fis, Inst Ciencias Terra Polo Evora, Inst Invest & Formacao Avancada, Evora, Portugal
推荐引用方式
GB/T 7714
Costa, M. J.,Obregon, M. A.,Pereira, S.,et al. Analysis of atmospheric vertical profiles in the presence of desert dust aerosols[C]:IOP PUBLISHING LTD,2015.
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