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Doppler lidar studies of heat island effects on vertical mixing of aerosols during SAMUM-2

Engelmann, Ronny and Ansmann, Albert and Althausen, Dietrich and Esselborn, Michael and Freudenthaler, Volker and Gross, Silke (2011) Doppler lidar studies of heat island effects on vertical mixing of aerosols during SAMUM-2. Tellus B - Chemical and Physical Meteorology, 63 (4), pp. 448-458. Taylor & Francis. DOI: 10.1111/j.1600-0889.2011.00552.x ISSN 0280-6509

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Abstract

A wind Doppler lidar was deployed next to three aerosol lidars during the SAMUM-2 campaign on the main island of Cape Verde. The effects of the differential heating of the island and the surrounding ocean and the orographic impact of the capital island Santiago and the small island on its luv side, Maio, are investigated. Horizontal and vertical winds were measured in the disturbed maritime boundary layer and compared to local radiosoundings. Lidar measurements from the research aircraft Falcon and a 3-D Large Eddy Simulation (LES) model were used in addition to study the heating effects on the scale of the islands. Indications are found that these effects can widely control the downward mixing from greater heights to the surface of African aerosols, mainly Saharan dust and biomass-burning smoke, which were detected in a complex layering over the Cape Verde region.

Item URL in elib:https://elib.dlr.de/97012/
Document Type:Article
Title:Doppler lidar studies of heat island effects on vertical mixing of aerosols during SAMUM-2
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Engelmann, RonnyIfT, LeipzigUNSPECIFIED
Ansmann, AlbertIfT, LeipzigUNSPECIFIED
Althausen, DietrichIfT, LeipzigUNSPECIFIED
Esselborn, MichaelDLR, IPAUNSPECIFIED
Freudenthaler, VolkerLMU, MünchenUNSPECIFIED
Gross, SilkeLMU, MünchenUNSPECIFIED
Date:2011
Journal or Publication Title:Tellus B - Chemical and Physical Meteorology
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:No
Volume:63
DOI :10.1111/j.1600-0889.2011.00552.x
Page Range:pp. 448-458
Publisher:Taylor & Francis
ISSN:0280-6509
Status:Published
Keywords:aerosol; atmospheric modeling; biomass burning; boundary layer; computer simulation; Doppler lidar; dust; heat island; large eddy simulation; orographic effect; small island state; vertical mixing
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben LIDAR-Forschung und -Entwicklung
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Lidar
Deposited By: Kiemle, Dr.rer.nat. Christoph
Deposited On:08 Jul 2015 10:53
Last Modified:08 Mar 2018 18:52

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