Lee C. Harrison Research Associate phone (518) 437 - 8741 lee@asrc.cestm.albany.edu

Research / Publications

Education:

PhD 1982, University of Washington

Research Interests:

My research interests are shortwave radiative transfer in the atmosphere, and closely coupled issues of aerosol and cloud physics, primarily as they affect our
climate.

Most of my recent work has been radiometric field instrumentation, observation, analysis, and the development of remote sensing techniques and algorithms. I
developed a series of photometric/radiometric instruments which are widely used by other scientists. I have also worked on CCN instrumentation, and a variety of
optical aerosol measurement techniques.

At present I am the principal investigator for the United States Reference Ultraviolet Radiometry Network (operated as part of the USDA UV/Biosphere Program),
and with my colleague Dr. J. Michalsky, a principal investigator in the USDOE Atmospheric Radiation Measurements Program (ARM). I am a member of the
Cloudsat (NASA) science team contributing to instrument design, retrieval algorithms and surface validation efforts for the O2 A-band spectrometer (PABSI).

Selected Publications:

Harrison, L., and H. Harrison (1982) A Comparison of Optical and Aerodynamic Sizes: The Effects of Inhomogeneous Particles, Atmos. Environ. 16: 293-300

Harrison, L. and H. Harrison (1985) The Segregation of Aerosols by Cloud-Nucleating Activity. Part I: Design, Construction, and Testing of a High-Flux Thermal Diffusion Cloud Chamber for Mass Separation, J. Climate & Appl. Met. 24: 302 - 310

Harrison, L., (1985) The Segregation of Aerosols by Cloud-Nucleating Activity. Part II: Observation of an Urban Aerosol J. Climate & Appl. Met. 24: 312 - 321

Michalsky, J.J., L. Harrison and B.A. LeBaron (1987) Empirical Radiometric
Correction of a Silicon Photodiode Rotating Shadowband Radiometer, Solar
Energy 39: 87-96

Barnard, J. and L. Harrison, (1989) Monotonic Responses from Monochromatic Optical Particle Counters, Appl. Optics 27: 584-592

Harrison, L. (1992) Spatial Correlations in the Chemical Deposition Observed by the Oscar Experiments, Atmos. Environ. 26A 939-946

Harrison, L., J. Michalsky, and J. Berndt (1994). Automated Multi- Filter Rotating Shadowband Radiometer: An Instrument for Optical Depth and Radiation Measurements , Appl. Opt. 33, 5118-5125

Harrison, L. and J. Michalsky (1994). Objective Algorithms for the Retrieval of Optical Depths from Ground-Based Measurements, Appl. Opt. 33, 5126-5132

Min, Q and L. Harrison (1996) "An Adjoint Formulation of the Radiative Transfer Method," J. Geophys. Res. 101: 1634-1640

Min, Q and L. Harrison (1996). "Cloud Properties derived from surface MFRSR
measurements and comparison with GOES results at the ARM SGP site." Geophys. Res. Let. 23 1641-1644

Harrison, L. and Q. Min (1997). "Photon Pathlengths from O2 A-band Absorption." IRS '96: Current Problems in Atmospheric Radiation. Proc. Intl. Rad. Symposium Fairbanks AK 19-24 Aug, 1996. A. Deepak Press, Hampton VA ISBN 0-937194-39-5, pp 594-598

Min, Q, and L. C. Harrison(1998), Synthetic Spectra for Terrestrial Ultraviolet from Discrete Measurements, J. Geophys. Res., 103 17033

Kiedron, P.W., J.J. Michalsky, J.L. Berndt and L.C. Harrison(1999), A comparison of spectral irradiance standards used to calibrate shortwave radiometers and spectroradiometers, Appl. Opt. 38, 2432-2439

Min, Q. and L. Harrison (1999), Joint statistics of photon pathlength and cloud optical depth, Geophys. Res. Lett. Vol. 26, No. 10, p. 1425-1428

Michalsky, J.J., M. Beauharnois, J. Berndt, L. Harrison, P. Kiedron and Q. Min (1999), O2-O2 absorption band identification based on optical depth spectra of the visible and near infrared, Geophys. Res. Lett. Vol. 26, No. 11, p. 1581

Harrison, L., M. Beauharnois, J. Berndt, P. Kiedron, J.J. Michalsky, and Q. Min (1999), The Rotating Shadowband Spectroradiometer (RSS) at SGP, Geophys. Res. Lett. Vol. 26, No. 12, p. 1715-1718

Schmid B., J. Michalsky, R. Halthore, M. Beauharnois, L. Harrison, J. Livingston, P. Russell, B. Holben, T. Eck, and A. Smirnov(1999), Comparison of Aerosol Optical Depth from Four Solar Radiometers During the Fall 1997 ARM Intensive Observation Period, Geophys. Res. Lett., 26, p. 2725-2728

Mlawer, E., P. Brown, S. Clough, L. Harrison, J. Michalsky, P. Kiedron and T. Shippert (2000), Comparison of spectral direct and diffuse solar irradiance measurements and calculations for cloud-free conditions, Geophys. Res. Lett.
27, p. 2653

Min, Q. and L. Harrison (2000), Joint statistics of photon pathlength and
cloud optical depth: case studies, Geophys. Res. Lett. in press