Title :
LIDAR Observations of Aerosol Properties Over Tropical Urban Region—A Case Study During a Low-Pressure System Over Bay of Bengal
Author :
Sharma, Anu Rani ; Kharol, Shailesh Kumar ; Badarinath, K.V.S.
Author_Institution :
Dept. of Space, Nat. Remote Sensing Centre, Hyderabad, India
Abstract :
Variations in aerosol properties and ground-reaching solar irradiance over a tropical urban environment in Hyderabad, India, associated with a low-pressure system during December 3-10, 2008, over Bay of Bengal (BoB) were analyzed. Considerable variations in aerosol properties and ground-reaching solar irradiance due to changes in wind velocity and direction associated with the low-pressure system formed over southeast BoB were observed. Terra/Aqua Moderate Resolution Imaging Spectroradiometer AOD550 variations showed trends matching with ground observations. Nighttime Light Detection and Ranging (LIDAR) observations suggested considerable reduction in atmospheric particulate matter (PM) loading under the influence of low-pressure system. Results of the study have implications for monitoring urban air quality as synoptic weather systems are capable of modifying the atmospheric PM loading.
Keywords :
aerosols; atmospheric optics; atmospheric techniques; optical radar; remote sensing; sunlight; AD 2008 12 3 to 10; Bay of Bengal; Hyderabad; India; MODIS Aqua; MODIS Terra; MODIS aerosol optical depth variations; Moderate Resolution Imaging Spectroradiometer; aerosol LIDAR observations; aerosol property variations; atmospheric particulate matter loading; ground reaching solar irradiance variations; light detection and ranging; low pressure system; nighttime LIDAR observations; tropical urban region; wavelength 550 nm; wind direction changes; wind velocity changes; $hbox{PM}_{2.5}$; $hbox{UV}_{rm ery}$; Aerosol optical depth (AOD); light detection and ranging (lidar); solar irradiance;
Journal_Title :
Geoscience and Remote Sensing Letters, IEEE
DOI :
10.1109/LGRS.2009.2025781
