HR: 0800h
AN: A41A-0021    [Abstracts]
TI: New Insights Into the Column Radiative Budget Using Ground Based Hyperspectral Zenith Radiance Measurements
AU: * McBride, P
EM: mcbridep@colorado.edu
AF: University of Colorado, Laboratory for Atmospheric and Space Physics Campus Box 392, Boulder, CO 80309, United States
AU: Pilewskie, P
EM: peter.pilewskie@lasp.colorado.edu
AF: University of Colorado, Laboratory for Atmospheric and Space Physics Campus Box 392, Boulder, CO 80309, United States
AU: Schmidt, S
EM: sebastian.schmidt@lasp.colorado.edu
AF: University of Colorado, Laboratory for Atmospheric and Space Physics Campus Box 392, Boulder, CO 80309, United States
AU: Coddington, O
EM: Odele.Coddington@lasp.colorado.edu
AF: University of Colorado, Laboratory for Atmospheric and Space Physics Campus Box 392, Boulder, CO 80309, United States
AB: For the past 18 months a new instrument (Shortwave Spectrometer, SWS) has been used to continuously monitor the spectrally resolved zenith radiance at the DOE ARM Southern Great Plains (SGP) Climate Research Facility. The primary objective behind its deployment was to enhance cloud remote sensing capabilities at SGP, in particular the retrieval of cloud optical thickness and, in unison with other observations, cloud water path. However, some of the most intriguing observations have occurred under cloud-free conditions. Zenith radiance is a relatively unexplored variable for deriving aerosol properties yet it is far more sensitive to small changes in aerosol burden and angular scattering patterns than either the directly transmitted irradiance or global irradiance. We present new methods for quantifying the column radiative energy budget through the analysis of zenith spectral radiance and aerosol and cloud remote sensing.
DE: 0305 Aerosols and particles (0345, 4801, 4906)
DE: 0321 Cloud/radiation interaction
DE: 0360 Radiation: transmission and scattering
DE: 0394 Instruments and techniques
SC: Atmospheric Sciences [A]
MN: 2007 Fall Meeting