92nd American Meteorological Society Annual Meeting (January 22-26, 2012)

Wednesday, 25 January 2012: 9:15 AM
Multidimensional Lidar Observations of Urban Aerosols During the DISCOVER-AQ Mission
Room 342 (New Orleans Convention Center )
Raymond M. Hoff, JCET/Univ. of Maryland Baltimore County, Baltimore, MD; and T. A. Berkoff, R. Delgado, D. Orozco, K. McCann, J. H. Crawford, B. E. Anderson, C. A. Hostetler, J. W. Hair, R. A. Ferrare, R. R. Rogers, M. D. Obland, B. Holben, and E. J. Welton

The Deriving Information on Surface Conditions from COlumn and VERtically Resolved Observations Relevant to Air Quality (DISCOVER-AQ) Mission is a five-year multisite experiment to better understand the relationship between satellite- measured variables (columnar) with surface concentrations, required for air quality assessment and regulation. The first DISCOVER-AQ experiment was held in the Baltimore-Washington urban corridor during July 2011 and involved thirteen lidars, a network of sunphotometers, sondes and two aircraft to provide the vertical profiles needed to close the vertical column with surface measures. UMBC operated one of the lidars in a scanning configuration to obtain 8 km cross-sectional scans across the I-95 corridor. This will be the basis of an on-going study in Baltimore for obtained volumetric aerosol information over the urban area. We use the DISCOVER-AQ data to determine whether gradients in aerosol can be determined on the microscale and the relevance to satellite retrievals of air quality over an urban setting.

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