Dr. Qingyuan Han

"time-altitude cross section of cloud amount generated by uahcbr"

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Associate Professor

Office: NSSTC 3047
Phone: 256.961.7785
Fax: 256.961.7755
Email: han@nsstc.uah.edu

Research Interests

  • Satellite Cloud Climatology
  • Remote Sensing
  • Radiative Transfer 

Education

  • 1992 - Ph.D. Atmos. Sci. Columbia University, New York, NY
  • 1990 - M. Ph. Atmos. Sci. Columbia University, New York, NY
  • 1982 - M. S. Atmos. Sci. Peking University, PRC
  • 1980 - B.S. Meteorology Peking University, PRC

Teaching

  • Six courses have been developed and instructed.
  • Supervised 4 MS students, currently 2 Ph.D. students and 1 MS student

Research

  • 9 proposals as PI funded in the period of 1993-1999
  • Currently 4 funded grants and contracts with total funding level ~$250k/yr
  • Two approved proposals waiting for NASA funding
  • 14 journal papers authored or co-authored
  • 121 scientific citations in the most recent five years (1996-2000)
  • See research section in the attachment for details

Professional Experience

  • 1992-1996: Assistant Professor, Department of Meteorology, South Dakota School of Mines & Technology, Rapid City, SD
  • 1996-1997: Associate Professor, Department of Meteorology, South Dakota School of Mines & Technology, Rapid City, SD
  • 1997-Present: Associate Professor, Department of Atmospheric Science, University of Alabama in Huntsville, Huntsville, AL

Tenure situation

  • Tenure has been approved.

Awards

  • 1987 The First Class National Award for Advances in Science (PRC)
  • 1999 Award for group achievement in CERES Team (NASA Headquarters)

Research

han-researchGroup Members

  • Joyce Chou - Sr. Research Scientist
  • Haldun Karan - Ph.D. Student
  • Jian Zeng - Ph.D. Student
  • Shea Smith - M.S. Student

Current Research Fields (funded research)

  • Satellite remote sensing of cloud properties
  • Observational study of aerosol-cloud interactions
  • Monitoring cloud formation and development

Research Accomplishments

  • First global survey of water cloud droplet size that shows contrast of droplet sizes between continental and maritime clouds and between two hemispheres (1994)
  • First global survey of ice cloud properties (1997)
  • First in indicating that effective particle size of 15 mm or larger retrieved by satellite data is indicative of drizzling (Han et al., 1995)
  • First global survey of column number concentration of droplet in water clouds that can be used for model validations (1998)
  • A global survey of the relationship between droplet size and cloud albedo suggests that cloud liquid water content should not be assumed as constant in model studies (1998)
  • A model study shows that aspect ratio of ice crystal sizes have significant impact on single scattering properties and should be considered in retrieval of ice-cloud properties (1999)

Above results received 121 scientific citations in the most recent five years (1996-2000)

  • First global survey of cloud column susceptibility reveals regions where aerosol-cloud interaction may cause cloud water to decrease (2000, in press)
  • New algorithm developed to distinguish dust from cloud that can improve the study of aerosol-cloud interactions (2000, in writing)
  • Improved algorithm for global survey of ice-cloud properties (2000, in writing)

New Research Fields (under development)

  • Study of clouds over polar regions (Proposal submitted to NASA)
  • Model development for non-spherical particles (Proposal submitted to NSF)
  • Ground observation to determine cloud vertical position (Supervising student thesis)
  • Improving cloud prediction in MM5 (Supervising student thesis)

Science Teams Currently Involved In

  • PI in the International Satellite Cloud Climatology Project (ISCCP)
  • PI in the Global Aerosol Climatology Project (GACP)
  • PI in the Global Imager Science Team (GLI, NASDA, Japan)
  • PI in the Polarization and Directionality of the Earth's Reflectances I and II Science Teams (POLDER, CNES, France)
  • Co-Investigator in the Cloud and the Earth's Radiant Energy System (CERES)
  • Co-Investigator in the Tropical Rainfall Measurement Mission (TRMM)

Publications

Selected Publications

  • Han, Q., 2010: Comment on "Metrics to describe the dynamical evolution of atmospheric moisture: Intercomparison of model (NARR) and observations (ISCCP)" by Tao and Barro. J. Geophys. Res., 115, D14124, doi:10.1029/2009JD011984.
  • Han, Q., J.-L. Brenguier, K.-S. Kuo, and A. Naeger, 2009: A New IR Technique for Monitoring Low-Cloud Process Using Geostationary Satellite Data. Atmos. Sci. Letts., 10, 115-121.
  • Zeng, J., Q. Han, and J. Wang, 2008: High-spectral resolution simulation of polarization of skylight: Sensitivity to aerosol vertical profile, Geophys. Res. Lett., 35, L20801, doi:10.1029/2008GL035645.
  • Welch, R., J. Zeng, Q. Han, U. Nair, and R. Lawton, 2008: Biogeography of tropical montane cloud forests: 1: Remote sensing of cloud base heights. J. Appl. Meteor. & Clim., 47, 960-975.
  • Han, Q., J. Zeng, K.-S. Kuo, H. Chen, and E. Smith, 2005, Effect of particle size distributions on the retrieval of ice cloud properties, Geophys. Res. Lett., 32, L13818, doi:10.1029/2005GL022659.
  • Ray, D. K., U. S. Nair, R. M. Welch, Q. Han, J. Zeng, W. Su, T. Kikuchi, and T. J. Lyons, Effects of land use in Southwest Australia: 1. Observations of cumulus cloudiness and energy fluxes, J. Geophys. Res., 108(D14), 4414, doi:10.1029/2002JD002654, 2003.
  • Han, Q. Y., W. B. Rossow, J. Zeng, and R. M. Welch, 2002: Three different behaviors of liquid water path of water clouds in aerosol-cloud interactions. J. Atmos. Sci., 59, 726-735. (view pdf)
  • Han, Q.Y., W.B.Rossow, Joyce Chou, and R.M.Welch, 2000a: Near-global Survey of Clouds Column Susceptibilities Using ISCCP Data. Geophys. Res. Letts., 27, 3221-3224 (view pdf)
  • Han, Q. Y., W. B. Rossow, J. Chou, and R. M. Welch, 2000b: ISCCP Data used to address a key IPCC climate issue: An approach for estimating the aerosol indirect effect globally. GEWEX News, 10, 3-5.
  • Han, Q. Y., W. B. Rossow, J. Chou, K. Kuo, and R. M. Welch, 1999: The effects of aspect ratio and surface roughness on satellite retrievals of ice-cloud properties. J. Quantitative Spectroscopy and Radiative Transfer, 63, (1999) 559-583 (view pdf)
  • Han, Q. Y., W. B. Rossow, J. Chou, and R. M. Welch, 1998a: Global survey of the relationship of cloud albedo and liquid water path with droplet size using ISCCP. J. Climate, 11, 1516-1528. (view pdf)
  • Han, Q. Y., W. B. Rossow, J. Chou, and R. M. Welch, 1998b: Global Variation of Column Droplet Concentration in Low-level Clouds. J. Geophys. Letts., 25, 1419-1422.(view pdf)
  • Mishchenko, M. I., L. D. Travis, W. B. Rossow, B. Cairns, B. E. Carlson, and Q. Y. Han, 1997: Retrieving CCN column density from single-channel measurements of refleted sunlight over the ocean: A sensitivity study. Geophys. Res. Letts., 24, 2655-265 8 (view pdf)
  • Han, Q. Y., W. B. Rossow, R. W. Welch, A. White, and J. Chou, 1995: Validation of satellite retrievals of cloud microphysics and liquid water path using observations from FIRE. J. Atmos. Sci., 52, 3936-3948. (view pdf
  • Han, Q. Y., W. B. Rossow, and A. A. Lacis, 1994: Near-global survey of effective droplet radii in liquid water clouds using ISCCP data. J. Climate, 7, 465-497. (view pdf)

Journal Papers (Refereed)

  • Han, Q. Y., W. B. Rossow, J. Chou, and R. M. Welch, 2000: Satellite Remote Sensing of the Liquid Water Sensitivity in Water Clouds. [Submitted to J. Atmos. Sci.,J.
  • Han, Q. Y., W. B. Rossow, J. Chou, K. Kuo, and R. M. Welch, 2000: Near-global survey of cloud susceptibilities using ISCCP data. Geophys. Res. Letts., 27, 3221-3224.
  • Han, Q. Y., W. B. Rossow, J. Chou, K. Kuo, and R. M. Welch, 1999: The Effects of aspect ratio and surface roughness on satellite retrievals of ice-cloud properties. J. Quantitative Spectroscopy and Radiative Transfer, 63, 559-584.
  • Han, Q. Y., W. B. Rossow, J. Chou, and R. M. Welch, 1998a: Global survey of the relationship of cloud albedo and liquid water path with droplet size using ISCCP. J. Climate, 11, 1516-1528.
  • Han, Q. Y., W. B. Rossow, J. Chou, and R. M. Welch, 1998b: Global Variation of Cloud Effective Droplet Concentration of Low-level Clouds. J. Geophys. Letts. 25, 1419-1422.
  • Mishchenko, M. I., L. D. Travis, W. B. Rossow, B. Cairns, B. E. Carlson, and Q. Han, 1997: Retrieving CCN column density from single-channel measurements of reflected sunlight over the ocean: A sensitivity study. Geophys. Res. Lett., 24, 2655-2658.
  • Han, Q. Y., W. B. Rossow, R. W. Welch, A. White, and J. Chou, 1995: Validation of satellite retrievals of cloud microphysics and liquid water path using observations from FIRE. J. Atmos. Sci., 52, 3936-3948.
  • Han, Q. Y., W. B. Rossow, and A. A. Lacis, 1994: Near-global survey of effective droplet radii in liquid water clouds using ISCCP data. J. Climate, 7, 465-497.
  • Zhao, B., Q. Y. Han, and H. X. Li, 1985: Atmospheric microwave radiation and remote sensing of atmospheric water vapor content. Kexue Tongbao (A Monthly Journal of Science), 30, 85-89.
  • Zhao, B., Q. Y. Han, and Y. J. Zhu, 1985: A study on absorption characteristics of the atmospheric window in microwave band. Advances in Atmospheric Sciences, 2, 28-34.
  • Zhao, B., Q. Y. Han, 1985: Microwave emissivity and the remote sensing of oil slick on water surface. Kexue Tongbao (A Monthly Journal of Science), 30, 103-106.
  • Zhao, B., and Q. Y. Han: 1985: A study on the microwave remote sensing of soil humidity. Scientia Sinica B, 34, 420-427.
  • Han, Q. Y., 1984: Measurement of the millimeter wave band microwave dielectric constants of the substance of earth surface. Acta Scientiarum Naturalium Universitates Pekinensis, 23, 57-67
  • Zhao, B., and Q. Y. Han, 1984: Microwave emissivity measuring meter and microwave emissivity of the substance composed earth surface. Acta Meteorologica Sinica, 42, 340-348.

Conference Papers

  • Han, Q., W. B. Rossow, J. Chou, and R. M. Welch, 2000: Retrieval of cloud column susceptibilities of water clouds using satellite data. Preprints, the 10th Conf. On Satellite Meteorology and Oceanography, 9-13 Jan, 2000, Long Beach, CA, 326-329.
  • Han, Q. W. B. Rossow, J. Chou, K-S. Kuo, Ronald, M. Welch, 1999d: Effects of size distributions and effective variance on the retrieval of ice-cloud properties. Proceedings of the 20th CERES Science Meeting, Dec. 7-9, 1999, San Diego, CA.
  • Han, Q., W. B. Rossow, J. Chou, K-S Kuo, and R. M. Welch, 1999c: Observed Effects of Cloud Droplet Concentration on Albedo for Low-Level Clouds Using Satellite Data. Preprints, the 22nd General Assembly of the International Union of Geodesy and Geophysics, 18-30, July 1999, Birmingham, UK.
  • Han, Q., W. B. Rossow, J. Chou, K-S Kuo, and R. M. Welch, 1999b: Calibration of Channel 3 of the AVHRR, Preprints, Infrared Spaceborne Remote Sensing VII, SPIE's International Symposium, 18-23 July 1999, Denver, CO.
  • Han, Q., J. Chou, and R. M. Welch, 1999a, Uncertainties in retrievals of cirrus cloud properties using satellite data. Proceedings of the 19th CERES Science Team Meeting, 26-28, Apr. 1999, Langley, VA.
  • Han, Q., W. B. Rossow, J. Chou, and R. M, Welch, 1998a: The effect of nonsphericity on the retrieval of particle sizes of ice-cloud. Invited seminar at NASA/GISS, June 20, 1998
  • Han, Q., W. J. Chou, and R. M. Welch, 1998b, On the definition of ice particle size used in satellite remote sensing. Preprints in the CERES Team Meeting, 16-18, Apr. 1998, Langley, VA.
  • Han, Q., W. J. Chou, and R. M. Welch, 1998c: Sensitivity of particle shape and its effect on the satellite remote sensing of particle sizes. Proceedings of the 17th CERES Science Team Meeting, 16-18, Apr. 1998, Langley, VA.
  • Han, Q. Y., J. Chou, and R. M. Welch, 1998e: Towards monitoring the aerosol indirect effect from space. Proceedings of the 18th CERES Science Team Meeting, Sep, 15-17, 1998, Stony Brook, New York, NY.
  • Han, Q., Y., W. B. Rossow, J. Chou, and R. M. Welch, 1998f: The effect of nonspherical shape on the retrieval of ice particle sizes from satellite observations. Preprints Conf. On light scattering by nonspherical particles: Theory, measurements, and applications. 29 Sep 1 Oct 1998, New York, NY, 55-58.
  • Han, Q., J. Chou, and W. B. Rossow, 1998g: Estimate the aerosol indirect effect from space. Presented at the Aerosol Science Meeting. Nov. 18-20, 1998, at NASA/GISS, New York, NY.
  • Han, Q., W. B. Rossow, J. Chou and R. M. Welch, 1997a: Comparison of ice cloud particle sizes retrieved from satellite data with those derived from in situ measurements. In Preprint 9th Conf. Atmospheric Radiation, 2-7 Feb. 1997, Long Beach, CA, AMS, 368-372.
  • Han, Q., W. B. Rossow, J. Chou and R. M. Welch, 1997b: Global survey of the relationship between cloud droplet size and albedo using ISCCP. In Preprint 9th Conf. Atmospheric Radiation, 2-7 Feb. 1997, Long Beach, CA, AMS, 426-430.
  • Hui, C., Q. Han, J. Chou, and R. M. Welch, 1997: Analysis of POLDER polarization measurements during ASTEX and EUCREX experiments. In Preprint 9th Conf. Atmospheric Radiation, 2-7 Feb. 1997, Long Beach, CA, AMS, 274-278.
  • Han, Q., J. Chou, and R. M. Welch, 1997e: Aerosol Optical Thickness Over Ocean Areas and Its Relationship with Cloud Droplet Size. 1997 International Geoscience and Remote Sensing Symposium (IGARRSS'97) Digest, Singapore, Aug, 1997.
  • Han, Q., J. Chou, and R. M. Welch, 1997f: Relationship between Cirrus Particle Size and Cloud Top Temperature. 1997 International Geoscience and Remote Sensing Symposium (IGARRSS'97) Digest, Singapore, Aug, 1997.
  • Han, Q., J. Chou, and R. M. Welch, 1997g: Initial results from POLDER observations. Proceedings of the Sixteenth CERES Science Team Meeting, 15-18, Sep. 1997, Corvallis, OR, I91-I111.
  • Han, Q., J. Chou, and R. M. Welch, 1997h: Ice cloud microphysics and its temperature dependence retrieved from satellite data, SPIE Proceed., 3220, 39-47.
  • Han, Q., W. B. Rossow, J. Chou and R. M. Welch, 1996a: A Near-Global Survey of Cirrus Particle Size. In Proceedings 8th Conf. on Satellite Meteorology and Oceanography, Jan 28 - Feb 2, 1996, Atlanta, GA, Amer. Meteor. Soc., 369-372.
  • Han, Q., W. Rossow, R. Welch, A. White, and J. Chou, 1995a: Comparison of cloud droplet radii and LWP retrieved by satellite data with observations from FIRE. Proc. Conf. on Cloud Physics, Jan 15-20, 1995, Dallas, TX, Amer. Meteor. Soc., 65-69.
  • Han, Q., R. M. Welch, and J. Chou, 1995b: Retrieval of cirrus microphysics over oceans on a near-global scale using ISCCP data. Preprints, AMS Conf. Cloud Physics, Jan 15-20 1995, Dallas, TX, Amer. Meteor. Soc.,583-585.
  • Han, Q. Y., W. B. Rossow, J. Chou, and R. M. Welch, 1995c: Initial Results of a Near Global Survey of Cirrus Particle Size Using ISCCP Data. Preprints, IUGG XXI General Assembly, pA224, Boulder, CO, July 2-14, 1995.
  • Han, Q. Y., W. B. Rossow, and R. M. Welch, 1994a: Inferring cloud liquid water path from ISCCP analysis. Preprints, 8th Conf. on Atmospheric Radiation, Jan 23-28,1994, Nashville, Amer. Meteor. Soc., 493-495.
  • Han, Q. Y., W. B. Rossow, and A. A. Lacis, 1993: Near-global cloud droplet size data and analysis. Preprints, 4th Symposium on Global Change Studies. Jan 17-22,1993, Anaheim, Amer. Meteor. Soc., 115-120.
  • Han, Q. Y., 1992: Global survey of effective particle size in liquid water cloud by satellite observations. Ph.D. Dissertation, Columbia University, New York, 205pp.
  • Han, Q. Y., W. B. Rossow, A. A. Lacis, 1991: Initial survey of cloud particle sizes using ISCCP data. Preprints, 5th Conf. on Climate Variations, Oct. 14-18, 1991, Denver, Amer. Meteor. Soc.,372-375.

Courses

han-courses501 Survey of Atmospheric Science - 3 hrs.

General survey of the field of atmospheric science. Quantitative examination of atmospheric physical properties including atmospheric composition, structure and dynamics. Detailed inspection of evolving atmospheric structures using real-time data systems. General topics include atmospheric thermodynamics, atmospheric dynamics, cloud physics, atmospheric radiation, and related topics in atmospheric remote sensing. Prerequisites: MA 172 and PH 112 or equivalent or consent of instructor. Fall

509 Applications of Computers in Meteorology - 3 hrs.

Survey of data types and languages commonly used in the meteorological community along with practical application to meteorology. Course is designed to prepare students for graduate work and research in atmospheric science. Prerequisites: MA172 and PH 112, or equivalent or permission of instructor. Lab fee $40. This course may not be used to meet minimum degree requirements. Fall

561 Atmospheric Radiation I - 3 hrs.

Fundamentals of terrestrial atmospheric radiation. Topics include: solar radiation at the top of the atmosphere, radiative transfer equation, gaseous absorption, scattering by molecules and particles, band models, transmittance along an inhomogeneous path, and microwave radiative transfer. Prerequisites: MA 238, PH 112 or equivalent or consent of instructor. Spring

761 Atmospheric Radiation II - 3 hrs.

Advanced topics in atmospheric radiative transfer. Specific topics include Maxwell equations, Mie theory, polarization and radiative transfer in a scattering atmosphere. Prerequisite: ATS 561.