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

Ronny Engelmann; Albert Ansmann; Stefan Horn; Patric Seifert; Dietrich Althausen; Matthias Tesche; Michael Esselborn; Julia Fruntke; Kirsten Lieke; Volker Freudenthaler; Silke Gross

doi:10.1111/j.1600-0889.2011.00552.x

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

Ronny Engelmann, Albert Ansmann, Stefan Horn, Patric Seifert, Dietrich Althausen, Matthias Tesche, Michael Esselborn, Julia Fruntke, Kirsten Lieke, Volker Freudenthaler, Silke Gross

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

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.

Original language	English
Pages (from-to)	448-458
Number of pages	11
Journal	Tellus Series B-Chemical and Physical Meteorology
Volume	63
Issue number	4
DOIs	https://doi.org/10.1111/j.1600-0889.2011.00552.x
Publication status	Published - 1 Sept 2011

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10.1111/j.1600-0889.2011.00552.x

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title = "Doppler lidar studies of heat island effects on vertical mixing of aerosols during SAMUM-2",

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.",

author = "Ronny Engelmann and Albert Ansmann and Stefan Horn and Patric Seifert and Dietrich Althausen and Matthias Tesche and Michael Esselborn and Julia Fruntke and Kirsten Lieke and Volker Freudenthaler and Silke Gross",

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T1 - Doppler lidar studies of heat island effects on vertical mixing of aerosols during SAMUM-2

AU - Engelmann, Ronny

AU - Ansmann, Albert

AU - Horn, Stefan

AU - Seifert, Patric

AU - Althausen, Dietrich

AU - Tesche, Matthias

AU - Esselborn, Michael

AU - Fruntke, Julia

AU - Lieke, Kirsten

AU - Freudenthaler, Volker

AU - Gross, Silke

PY - 2011/9/1

Y1 - 2011/9/1

N2 - 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.

AB - 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.

U2 - 10.1111/j.1600-0889.2011.00552.x

DO - 10.1111/j.1600-0889.2011.00552.x

M3 - Article

AN - SCOPUS:80051959525

SN - 0280-6509

VL - 63

SP - 448

EP - 458

JO - Tellus Series B-Chemical and Physical Meteorology

JF - Tellus Series B-Chemical and Physical Meteorology

IS - 4

ER -

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

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