Email: heyms1@ucar.edu
Phone: 303-497-8943
Postal Address: P.O. Box 3000, Boulder, CO, 80307-3000
Shipping Address: 3450 Mitchell Lane, Boulder, CO, 80307-3000

Professional Interests

My field of interest is in ice microphysics, including the processes that lead to ice particle nucleation and growth, the effects of ice clouds on the earth's radiation budget, the reprentation of ice processes in models from weather forecast to climate scales, and the retrieval of ice cloud properties from ground-based and spaceborne remote sensors.

Recent Publications

To search my complete list of publications, please see The ESSL Publications Search.

Seifert, P., Ansmann, A., Muller, D., Wandinger, U., Althausen, D., Heymsfield, A. J., Massie, S. T., Schmitt, C., 2007: Cirrus optical properties observed with lidar, radiosonde, and satellite over the tropical Indian Ocean during the aerosol-polluted northeast and clean maritime southwest monsoon. Journal of Geophysical Research, 112, doi: 10.1029/2006JD008352, D17205.

Field, P. R., Heymsfield, A. J., Bansemer, A., Twohy, C. H., 2007: Determination of the combined ventilation factor and capacitance for ice crystal aggregates from airborne observations in a tropical anvil cloud. Journal of the Atmospheric Sciences. (In Press).

vanZadelhoff, G., Heymsfield, A. J., Donovan, D. P., McGill, M. J., 2007: Evaluating lidar-radar microphysics retrieval using in situ measurements. Journal of Geophysical Research, 112, doi: 10.1029/2006JD007202, D09213.

Prenni, A. J., DeMott, P. J., Twohy, C., Poellot, M. R., Kreidenweis, S. M., Rogers, D. C., Brooks, S. D., Richardson, M. S., Heymsfield, A. J., 2007: Examinations of ice formation processes in Florida cumuli using ice nuclei measurements of anvil ice crystal particle residues. Journal of Geophysical Research, 112, doi: 10.1029/2006JD007549, D10221.

Heymsfield, A. J., Schmitt, C., Bansemer, A., vanZadelhoff, G., McGill, M. J., Twohy, C., Baumgardner, D., 2007: Responses to comments on "Effective radius of ice cloud particle populations derived from aircraft probes" by Heymsfield et al, 2006. Journal of Atmospheric and Oceanic Technology, 24, doi: 10.1175/JTECH2077.1, 1511-1518.

Field, P. R., Heymsfield, A. J., Bansemer, A., 2007: Snow size distribution parameterization for midlatitude and tropical ice clouds. Journal of the Atmospheric Sciences. (In Press).

Protat, A., Bouniol, D., Heymsfield, A. J., Bansemer, A., Brown, P., 2007: Evaluation of ice water content retrievals from cloud radar reflectivity and temperature using a large airborne in situ microphysical database. Journal of Applied Meteorology and Climatology, 46, doi: 10.1175/JAM2488.1, 557-572.

Schmitt, C. G., Heymsfield, A. J., 2007: On the occurrence of hollow bullet rosette and column shaped ice crystals in mid-latitude cirrus. Journal of the Atmospheric Sciences. (In Press).

Baum, B., Yang, P., Nasiri, S., Heidinger, A. K., Heymsfield, A. J., Li, J., 2007: Bulk scattering properties for the remote sensing of ice clouds. Part III: High-resolution spectral models from 100 to 3250 cm-1. Journal of Applied Meteorology and Climatology, 46, doi: 10.1175/JAM2473.1, 423-434.

Heymsfield, A. J., Bansemer, A., Twohy, C., 2007: Refinements to ice particle mass dimensional and terminal velocity relationships for ice clouds: Part I: Temperature dependence. Journal of the Atmospheric Sciences, 64(4), 1047-1067.