HR: 0800h
AN: A41A-0020    [Abstracts]
TI: Cloud and Aerosol Measurements at the Clouds and the Earth's Radiant Energy System (CERES) Ocean Validation Experiment (COVE)
AU: * Fabbri, B
EM: Bryan.E.Fabbri@nasa.gov
AF: Science Systems and Applications, Inc. (SSAI), One Enterprise Parkway Suite 200, Hampton, VA 23666, United States
AU: Schuster, G
EM: Gregory.L.Schuster@nasa.gov
AF: NASA Langley Research Center, Science Directorate Mail Stop 420 Building 1250, Rm. 165, Hampton, VA 23681, United States
AU: Rutledge, K
EM: Charles.K.Rutledge@nasa.gov
AF: Science Systems and Applications, Inc. (SSAI), One Enterprise Parkway Suite 200, Hampton, VA 23666, United States
AU: Denn, F
EM: Frederick.M.Denn@nasa.gov
AF: Science Systems and Applications, Inc. (SSAI), One Enterprise Parkway Suite 200, Hampton, VA 23666, United States
AU: Madigan, J
EM: James.J.Madigan@nasa.gov
AF: Science Systems and Applications, Inc. (SSAI), One Enterprise Parkway Suite 200, Hampton, VA 23666, United States
AB: The CERES Ocean Validation Experiment (COVE) is located 25 km off the coast of Virginia Beach, Virginia and has been a part of many studies and projects. We focus here on some of the most recent measurements and analysis conducted at this site. The relationship between aerosol inversions with cloud fraction and relative humidity will be presented. Using AERONET data for aerosol inversions and Long-Ackerman for cloud fraction, it will be shown that cloud fraction correlates better than relative humidity versus aerosol inversion except in the course volume, although relative humidity demonstrate good relationships as well. Angstrom Exponent (AE 500-870) and Aerosol Optical Thickness (AOT 500) with cloud fraction will also show similar results bearing strong relationships. Cloud conditions play an important role on insolation. Cloud fraction was used to infer the percentage of the sky covered by clouds (clear, partly cloudy or overcast) at the COVE site. Being a warm, humid site in the summer, the annual trend will be discussed where the summer months tend to be the least clear while the fall months being the most clear. Derived Micro-Pulse Lidar (MPL) lowest cloud base height data and statistics will also be shown. Aerosol climatology at this location indicate AOT's and AE's that are consistent with polluted urban aerosols, which is not surprising given the predominantly westerly winds passing over Virginia Beach and Norfolk, VA. Although this is the case, there is a small percentage of clean maritime air indicating that coarse mode aerosols also influence the COVE site. Back trajectories and Angstrom exponent data will be discussed to show this influence.
DE: 0305 Aerosols and particles (0345, 4801, 4906)
DE: 0321 Cloud/radiation interaction
DE: 0345 Pollution: urban and regional (0305, 0478, 4251)
DE: 0399 General or miscellaneous
SC: Atmospheric Sciences [A]
MN: 2007 Fall Meeting