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Alexander Marshak Physical Scientist alexander.marshak@nasa.gov (301) 614-6122 Curriculum Vitae |
Professional Activities and Experience
Numerical Solution of the Transport Problem
Radiative Transfer in Leaf Canopies
Remote Sensing Problems
Fractals and Multifractals
Scale-by-Scale Statistical Analysis of Geophysical Data
Cloud Structure (Statistical Analysis & Stochastic Simulation)
Radiative Transfer in Scale-Invariant Media & Application to Clouds
Background
I work for NASA - Goddard Space Flight Center, Climate & Radiation Branch (Code 613.2). Before (1997-2002) I worked for JCET - Joint Center for Earth Systems Technology, University of Maryland Baltimore County. And these are some of the people I work with:
* Anthony Davis;
* Warren Wiscombe;
* Bob Cahalan;
* Robert Pincus;
* Lazaros Oreopoulos;
* Tamas Varnai;
* Frank Evans.
Access the ISI Web of Knowledge.
Academic Information
*Alexander von Humboldt Fellow; Institute of Bioclimatology, Goettingen, Germany;
*Institute of Astrophysics and Atmospheric Physics, Tartu, Estonia;
*Siberian Branch of the Academy of Sciences of the Former USSR, Novosibirsk, Russia, Ph. D. in Numerical Analysis (1983);
*Department of Mathematics, Tartu State University, Tartu, Estonia, M.S. in Applied Mathematics (1978).
Latest Publications
Prigarin, S., and A. Marshak, 2009: A simple stochastic model for generating broken cloud optical depth and cloud-top height fields. J. Atmos. Sci., 66, 92-104. [Abstract] [Full Text (PDF)]
Chiu, J. C., A. Marshak, Y. Knyazikhin, P. Pilewskie, and W. Wiscombe, 2009: Physical interpretation of the spectral radiative signatures in the transition zone between cloud-free and cloudy regions. Atmos. Chem. Phys., 9, 1419-1430 . [Abstract] [Full Text (PDF)]
Marshak, A., Y. Knyazikhin, J. C. Chiu, and W. J. Wiscombe, 2009: Spectral invariant behavior of zenith radiance around cloud edges observed by ARM SWS. Geophys. Res. Lett., 36, L16802, doi:10.1029/2009GL039366. [Abstract] [Full Text (PDF)]
Varnai, T., and A. Marshak, 2009: MODIS observations of enhanced clear sky reflectance near clouds. Geophys. Res. Lett., 36, L06807, doi:10.1029/2008GL037089. [Abstract] [Full Text (PDF)]
Davis, A. B., I. N. Polonski, and A. Marshak, 2009: Space-Time Green Functions for Diffusive Radiation Transport, in Application to Active and Passive Cloud Probing. In Light Scattering Reviews, 4. Single Light Scattering and Radiative Transfer, A.A. Kokhanovsky [Ed.], Springer, 169-292. [Full Text (PDF)]
Davis, A. B., and A. Marshak, 2009: Solar Radiation Transport in the Cloudy Atmosphere: A 3D Perspective on Observations and Climate Impacts. Reports on Progress in Phys.. (In press) [Abstract] [Full Text (PDF)]
Yang, Y., A. Marshak, T. Varnai, W. J. Wiscombe, and P. Yang, 2009: Uncertainties in ice sheet altimetry from a space-borne 1064 nm single channel lidar due to undetected thin clouds. IEEE Trans. Geos. Remote Sens. (In press) [Abstract] [Full Text (PDF)]
Chiu, J. C., C.-H. Huang, A. Marshak, I. Slutsker, D. M. Giles, B. N. Holben, Y. Knyazikhin, and W. J. Wiscombe, 2009: Cloud optical depth retrievals from the Aerosol Robotic Network (AERONET) cloud mode observations. J. Geophys. Res.. (Submitted) [Abstract]
Lyapustin, A., C. K. Gatebe, R. Kahn, R. Brandt, J. Redemann, P. Russell, M. D. King, C. A. Pedersen, S. Gerland, R. Poudyal, A. Marshak, Y. Wang, C. Schaaf, D. Hall, and A. Kokhanovsky, 2009: Analysis of snow BRF from ARCTAS Spring-2008 campaign. Atmos. Chem. Phys. (Submitted) [Abstract] [Full Text (PDF)]
Alexandrov, M. D., A. Marshak, and A. S. Ackerman, 2009: Cellular statistical models of broken cloud fields. Part I: Theory. J. Atmos. Sci. (Submitted) [Full Text (PDF)]
Latest Images of the Week
CALIPSO Observations of Aerosol Changes Near Clouds (Nov 15, 2009)
Observing Blowing Snow from Space (Aug 30, 2009)
A Simple Stochastic Model for Generating Broken Cloud Optical Depth and Cloud Top Height Fields (Mar 22, 2009)
Cloud-Free Air is Brighter at Shorter Wavelengths Around Thicker Clouds (Aug 17, 2008)
What’s going on around cloud edges: interpretations of spectral measurements of the overhead radiance (Jul 13, 2008)
Enhanced Clear Sky Brightness in the Vicinity of Clouds (Mar 30, 2008)
Retrieving thick cloud optical depth from space-borne lidar observations (Mar 16, 2008)
Remote sensing of cloud sides of deep convective clouds (Dec 9, 2007)
Lidar solar background light helps studies of aerosol-cloud interactions (Aug 26, 2007)
Derivation of Realistic High-resolution Cloud Structure (Nov 26, 2006)