Boundary Layer Height Characteristics in Mexico City from Two Remote Sensing Techniques

• DOI: 10.1007/s10546-022-00759-w
• Publication Date: 2022-11-29T08:10:40Z
• Authors: Andrea Burgos-Cuevas; Adolfo Magaldi; David K. Adams; Michel Grutter; Jorge L. García F...; Angel Ruiz-Angulo
• Keywords: Ceilometer; Convective Boundary Layer; Potential temperature; Orography; Backscatter (email); SODAR

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