HR: 1340h
AN: A43C-1434    [Abstracts]
TI: Aerosol-Cloud Interactions in the New York City Metropolitan Region
AU: * Zhang, Y
EM: yanzhang@princeton.edu
AF: Princeton Unversity, Department of Civil and Environmental Engineering, Princeton, NJ 08544, United States
AU: Smith, J A
EM: jsmith@princeton.edu
AF: Princeton Unversity, Department of Civil and Environmental Engineering, Princeton, NJ 08544, United States
AU: Ntelekos, A A
EM: ntelekos@princeton.edu
AF: Princeton Unversity, Department of Civil and Environmental Engineering, Princeton, NJ 08544, United States
AU: Baeck, M
EM: mlbaeck@princeton.edu
AF: Princeton Unversity, Department of Civil and Environmental Engineering, Princeton, NJ 08544, United States
AU: Yeung, J
EM: jyeung@Princeton.EDU
AF: Princeton Unversity, Department of Civil and Environmental Engineering, Princeton, NJ 08544, United States
AU: Moshary, F
EM: moshary@ccny.cuny.edu
AF: City College of New York, Department of Electrical Engineering, New York City, NY 10034, United States
AB: Observational and numerical modeling studies are used to examine aerosol – cloud interactions in the New York City metropolitan region. Empirical analyses are based on observations during the period August 2006 – September 2007 from vertically pointing lidar systems operating at 1064, 532 and 355 nm and shadowband radiometers. Observing systems are located in Manhattan and Princeton, NJ and are collocated with ancillary meteorological observing systems. In addition, 3-D reflectivity observations from the KDIX and KOKX WSR-88D radars are used to examine precipitating cloud systems over the region. The objectives of empirical analyses are to characterize temporal and spatial variability of aerosol concentrations over the New York City metropolitan region and to relate variability of aerosol populations to properties of precipitating cloud systems. Empirical analyses are supplemented by numerical modeling studies using the Weather Research and Forecasting (WRF) model with a fully coupled chemistry module, WRF-Chem. Simulation studies are used to examine aerosol impacts on precipitation systems, with special focus on storm systems that passed over the region on 4-5 October 2006 and 16 May 2007. Both empirical and model analyses are also used to guide development of new lidar observing systems incorporating mid-IR sources.
DE: 0305 Aerosols and particles (0345, 4801, 4906)
DE: 0345 Pollution: urban and regional (0305, 0478, 4251)
DE: 4801 Aerosols (0305, 4906)
DE: 4906 Aerosols (0305, 4801)
SC: Atmospheric Sciences [A]
MN: 2007 Fall Meeting