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Vertical wind retrieved by airborne lidar and analysis of island induced gravity waves in combination with numerical models and in situ particle measurements

Chouza Keil, Fernando and Reitebuch, Oliver and Jähn, Michael and Rahm, Stephan and Weinzierl, Bernadett (2016) Vertical wind retrieved by airborne lidar and analysis of island induced gravity waves in combination with numerical models and in situ particle measurements. Atmospheric Chemistry and Physics (ACP), 16 (7), pp. 4675-4692. Copernicus Publications. DOI: 10.5194/acp-16-4675-2016 ISSN 1680-7316

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Official URL: http://www.atmos-chem-phys.net/16/4675/2016/

Abstract

This study presents the analysis of island induced gravity waves observed by an airborne Doppler wind lidar (DWL) during SALTRACE. First, the instrumental corrections required for the retrieval of high spatial resolution vertical wind measurements from an airborne DWL are presented and the measurement accuracy estimated by means of two different methods. The estimated systematic error is below −0.05 m s−1 for the selected case of study, while the random error lies between 0.1 and 0.16 m s−1 depending on the estimation method. Then, the presented method is applied to two measurement flights during which the presence of island induced gravity waves was detected. The first case corresponds to a research flight conducted on 17 June 2013 in the Cabo Verde islands region, while the second case corresponds to a measurement flight on 26 June 2013 in the Barbados region. The presence of trapped lee waves predicted by the calculated Scorer parameter profiles was confirmed by the lidar and in situ observations. The DWL measurements are used in combination with in situ wind and particle number density measurements, large-eddy simulations (LES), and wavelet analysis to determine the main characteristics of the observed island induced trapped waves.

Item URL in elib:https://elib.dlr.de/103944/
Document Type:Article
Title:Vertical wind retrieved by airborne lidar and analysis of island induced gravity waves in combination with numerical models and in situ particle measurements
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Chouza Keil, FernandoDLR, IPAUNSPECIFIED
Reitebuch, OliverDLR, IPAUNSPECIFIED
Jähn, MichaelIfT, LeipzigUNSPECIFIED
Rahm, StephanDLR, IPAUNSPECIFIED
Weinzierl, BernadettDLR, IPAUNSPECIFIED
Date:14 April 2016
Journal or Publication Title:Atmospheric Chemistry and Physics (ACP)
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:16
DOI :10.5194/acp-16-4675-2016
Page Range:pp. 4675-4692
Publisher:Copernicus Publications
ISSN:1680-7316
Status:Published
Keywords:Doppler wind lidar, gravity waves, vertical wind, SALTRACE
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 - Projekt ADM
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Lidar
Institute of Atmospheric Physics > Atmospheric Trace Species
Deposited By: Chouza Keil, Fernando German
Deposited On:15 Apr 2016 08:46
Last Modified:02 May 2019 13:59

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