TY - JOUR
T1 - On the Analysis of the Low-Level Double Temperature Inversion over the United Arab Emirates
T2 - A Case Study during April 2019
AU - Weston, Michael John
AU - Temimi, Marouane
AU - Nelli, Narendra Reddy
AU - Fonseca, Ricardo Morais
AU - Thota, Mohana Satyanarayana
AU - Valappil, Vineeth Krishnan
N1 - Publisher Copyright:
© 2004-2012 IEEE.
PY - 2021/2
Y1 - 2021/2
N2 - This letter investigates a double temperature inversion event, which persisted during April 23-27, 2019 over the United Arab Emirates, which coincided with anomalously cold surface temperatures. An analysis of in situ meteorological data, a microwave radiometer and radiosonde profiles, and aerosol profiles from the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations satellite revealed a layer of dust between 100 and 600 m, and another between 1 and 5 km above ground level. The presence of these dust layers is consistent with the observed warmer and drier conditions at those heights, as dust traps the outgoing longwave radiation and absorbs the incoming shortwave radiation. Meanwhile, the high lapse-rate inversion maintains the dust in the upper air by reducing vertical mixing. This result stresses the importance of monitoring the vertical distribution of dust and its diurnal variability given the link with the formation of inversion and its lapse rate.
AB - This letter investigates a double temperature inversion event, which persisted during April 23-27, 2019 over the United Arab Emirates, which coincided with anomalously cold surface temperatures. An analysis of in situ meteorological data, a microwave radiometer and radiosonde profiles, and aerosol profiles from the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations satellite revealed a layer of dust between 100 and 600 m, and another between 1 and 5 km above ground level. The presence of these dust layers is consistent with the observed warmer and drier conditions at those heights, as dust traps the outgoing longwave radiation and absorbs the incoming shortwave radiation. Meanwhile, the high lapse-rate inversion maintains the dust in the upper air by reducing vertical mixing. This result stresses the importance of monitoring the vertical distribution of dust and its diurnal variability given the link with the formation of inversion and its lapse rate.
KW - Cloud-aerosol Lidar and infrared pathfinder satellite observations (CALIPSO)
KW - doubleerature inversion
KW - dust layer
KW - hyperarid region
KW - microwave radiometer (MWR)
KW - spinning-enhanced visible and infrared imager (SEVIRI)
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U2 - 10.1109/LGRS.2020.2972597
DO - 10.1109/LGRS.2020.2972597
M3 - Article
AN - SCOPUS:85079678733
SN - 1545-598X
VL - 18
SP - 346
EP - 350
JO - IEEE Geoscience and Remote Sensing Letters
JF - IEEE Geoscience and Remote Sensing Letters
IS - 2
M1 - 9005178
ER -