Derek J Posselt

Assistant Research Scientist

Education:

Ph.D., Atmospheric Science, Colorado State University

M.S., Atmospheric Science, University of Wisconsin-Madison

B.S., Atmospheric Science, University of Wisconsin-Madison

Research:

Climate change effects on clouds and precipitation; clouds and precipitation associated with tropical convective cloud clusters and midlatitude cyclones; assimilation of cloud and precipitation data into mesoscale and cloud scale numerical models; nonlinear inverse problem theory; model error analysis

Doctoral Students:

Chun-Yuan Hsu

Specializations and Research Interests

• Climate change effects on clouds and precipitation
• Distribution of clouds and precipitation in tropical convective cloud clusters and midlatitude cyclones
• Assimilation of cloud and precipitation data into mesoscale and cloud scale numerical models
• Model error analysis: uncertainty inherent in model physics parameterizations
• Nonlinear inverse problem theory

Honors, Awards and Accomplishments

• First Place Student Poster Competition, AMS Annual Meeting
• Center for Earth-Atmosphere Studies Fellowship, NASA Goddard Space Flight Center and Colorado State University
• NCAR Advance Studies Program Summer Colloquium (Data Assimilation)
• NATO Advanced Studies Institute (Data Assimilation)
• Participant in the first Pacific THORPEX Operations Science Test observation campaign, Honolulu
• Participant in the International H2O Project field experiment

Professional Service

• American Meteorological Society Satellite Meteorology and Oceanography Committee (2010 - 2013)
• Reviewer for: Journal of the Atmospheric Sciences, Journal of Geophysical Research, Climate Dynamics, Atmospheric Research
• Member of the American Meteorological Society
• Member of the American Geophysical Union

Publications

Posselt, D. J., and T. Vukicevic, 2009: Robust Characterization of Model Physics Uncertainty for Simulations of Deep Moist Convection. Mon. Wea. Rev., Conditionally accepted for publication.

Posselt, D. J., T. S. L'Ecuyer, and G L. Stephens (2008), Exploring the Error Characteristics of Thin Ice Cloud Property Retrievals Using a Markov Chain Monte Carlo Algorithm, J. Geophys. Res., 113, D24206, doi:10.1029/2008JD010832.

Vukicevic, T., and D. J. Posselt, 2008: Analysis of the Impact of Model Nonlinearities in Inverse Problem Solving. J. Atmos. Sci., 65, 2803-2823.

Posselt, D. J., G. L. Stephens, and M. Miller, 2008: CloudSat: Adding a New Dimension to a Classical View of Extratropical Cyclones. Bull. Amer. Meteor. Soc., 89, 599-609.

Posselt, D. J., S. C. van den Heever, and G L. Stephens (2008), Trimodal cloudiness and tropical stable layers in simulations of radiative convective equilibrium, Geophys. Res. Lett., 35, L08802, doi:10.1029/2007GL033029.

Otkin, J. A., D. J. Posselt, E. R. Olson, H.-L. Huang, J. E. Davies, J. Li, and C. S. Velden, 2007: Mesoscale Numerical Weather Prediction Models Used in Support of Infrared Hyperspectral Measurements Simulation and Product Algorithm Development. J. Atmos. Ocn. Tech., 24, 585-601.

Posselt, D. J., and J. E. Martin, 2004: The Effect of Latent Heat Release on the Evolution of a Warm Occluded Thermal Structure. Mon. Wea. Rev., 132, 578-599.

Huang, H.-L., D. C. Tobin, J. Li, E. R. Olson, K. Baggett, B. Huang, J. Mecikalski, R. O. Knuteson, B. Osborne, D. Posselt, P. B. Antonelli, H. E. Revercomb, W. L. Smith, and P. Yang, 2003: Hyperspectral radiance simulator: cloudy radiance modeling and beyond., Proc. SPIE 4891, 180 (2003), DOI:10.1117/12.466054