Aerosol plume observations by the ground-based lidar, sunphotometer, and satellite: cases analysis

Yonghua Wu; Chuen-meei Gan; Barry Gross; Fred Moshary; Sam Ahmed

doi:10.1117/12.830639

9 October 2009 Aerosol plume observations by the ground-based lidar, sunphotometer, and satellite: cases analysis

Yonghua Wu, Chuen-meei Gan, Barry Gross, Fred Moshary, Sam Ahmed

Proceedings Volume 7479, Lidar Technologies, Techniques, and Measurements for Atmospheric Remote Sensing V; 74790U (2009) https://doi.org/10.1117/12.830639
Event: SPIE Remote Sensing, 2009, Berlin, Germany

Abstract

Smoke and dust aerosol plumes are observed by the ground-based multi-wavelength elastic-Raman lidar, sunphotometer and space-borne lidar CALIOP (Cloud-Aerosol Lidar with Orthogonal Polarization). Lidar-derived multi-wavelength aerosol extinction profiles and column lidar ratios are constrained by the independently measured optical depths. The aloft smoke plume layers from Idaho/Montana forest fires were measured at 2~8 km altitude by the ground lidar on Aug. 14~15, 2007. High aerosol optical depths (AOD) are shown with the value of 0.6~0.8 at wavelength 500 nm and Angstrom exponent of 1.8. The CALIOP observations generally show consistent plume height distribution with the ground lidar, but partly misclassify these smoke plumes as clouds. The forest fire sources and intra-continental smoke transport are clearly illustrated by CALIOP and MODIS satellite imageries. For the moderate dust-like plumes on April 18, 2008, they were observed at the altitude of 2~6 km. Aerosol optical depths vary from 0.2 to 0.4 at wavelength 500 nm with Angstrom exponent <1.0 in the plume-layer. Ground-lidar and CALIOP retrievals show the good agreement in dust-like layer heights, extinction profiles and aerosol species classification.

Citation Download Citation

Yonghua Wu, Chuen-meei Gan, Barry Gross, Fred Moshary, and Sam Ahmed "Aerosol plume observations by the ground-based lidar, sunphotometer, and satellite: cases analysis", Proc. SPIE 7479, Lidar Technologies, Techniques, and Measurements for Atmospheric Remote Sensing V, 74790U (9 October 2009); https://doi.org/10.1117/12.830639

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available