Universität zu Köln

Burgos-Cuevas, Andrea ORCID: 0000-0003-2012-4839, Magaldi, Adolfo, Adams, David K., Grutter, Michel ORCID: 0000-0001-9800-5878, Garcia Franco, Jorge L. and Ruiz-Angulo, Angel ORCID: 0000-0002-7292-3002 (2023). Boundary Layer Height Characteristics in Mexico City from Two Remote Sensing Techniques. Bound.-Layer Meteor., 186 (2). S. 287 - 305. DORDRECHT: SPRINGER. ISSN 1573-1472

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Abstract

The Atmospheric Boundary Layer (ABL) height is a key parameter in air quality research as well as for numerical simulations and forecasts. The identification of thermally stable layers, often with radiosondes, has been a common approach for estimating ABL height, though with limited temporal coverage. Remote sensing techniques offer essentially continuous measurements. Nevertheless, ABL height retrievals from different methods can vary greatly when compared, which is particularly notable for topographically complex terrains, such as that surrounding Mexico City. This study, employing one year of data in Mexico City, reveals that the daytime convective boundary layer height (retrieved from Doppler lidar data) is typically lower than the aerosol layer height (retrieved from ceilometer data). Although both estimated heights evolved diurnally, the more elevated aerosol layer decays more slowly, suggesting that the mechanisms that elevate aerosols are not limited to convective motions. Additionally, both diurnal and seasonal variability are investigated, comparing remotely sensed-retrieved heights with thermally stable layers estimated from radiosonde data. Multiple stable layers often develop, those at higher levels have similar values to the ceilometer-retrieved heights, while stable layers at lower heights are similar to Doppler lidar height retrievals. The present research constitutes the first detailed analysis of ceilometer backscatter and Doppler lidar thresholding methods for estimating ABL height over Mexico City, and our results illustrate the complexity of mixing mechanisms on the ABL in this region of complex orography.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Burgos-Cuevas, Andrea UNSPECIFIED orcid.org/0000-0003-2012-4839 UNSPECIFIED Magaldi, Adolfo UNSPECIFIED UNSPECIFIED UNSPECIFIED Adams, David K. UNSPECIFIED UNSPECIFIED UNSPECIFIED Grutter, Michel UNSPECIFIED orcid.org/0000-0001-9800-5878 UNSPECIFIED Garcia Franco, Jorge L. UNSPECIFIED UNSPECIFIED UNSPECIFIED Ruiz-Angulo, Angel UNSPECIFIED orcid.org/0000-0002-7292-3002 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-680393
DOI:	10.1007/s10546-022-00759-w
Journal or Publication Title:	Bound.-Layer Meteor.
Volume:	186
Number:	2
Page Range:	S. 287 - 305
Date:	2023
Publisher:	SPRINGER
Place of Publication:	DORDRECHT
ISSN:	1573-1472
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language DOPPLER LIDAR; RADIOSONDE; BASIN; TRANSPORT; PROGRESS; CHINA; CIRCULATIONS; CLIMATOLOGY; RETRIEVAL; POLLUTION Multiple languages Meteorology & Atmospheric Sciences Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/68039