David B Mechem


David Mechem
  • Chair
  • Professor

Contact Info

Department Phone:
Malott Hall #3018

Biography

I am a professor in the Atmospheric Science Program located in the Department of Geography. My group and I conduct research on cloud microphysics and dynamics, and mesoscale organization of cloud systems.

I teach the 2-semester undergraduate dynamic meteorology sequence, physical meteorology (occasionally), and a graduate-level numerical modeling course.

Research

My research explores different manifestations of precipitating convection, ranging from drizzling boundary layer stratocumulus to deep, highly organized mesoscale convective systems. A common thread of interest between these phenomena is the concept of mesoscale organization and its role in promoting scale interactions, in particular how mesoscale and cloud-scale processes serve as upscale agents of change for the large-scale flow or cloud coverage. Guided by observational results, I employ large eddy simulation, cloud resolving models, and mesoscale models to investigate cloud system processes.

Selected Publications

Eissner, J., Mechem, D., Jensen, M., Giangrande, S. (2021). Factors Governing Cloud Growth and Entrainment Rates in Shallow Cumulus and Cumulus Congestus During GoAmazon2014/5. Journal of Geophysical Research: Atmospheres - Issue 12 | Volume 126. https://doi.org/10.1029/2021JD034722.
Tomkins, L., Mechem, D., Yuter, S., Rhodes, S. (2021). Regional flow conditions associated with stratocumulus cloud-eroding boundaries over the southeast Atlantic. Monthly Weather Review. https://doi.org/10.1175/MWR-D-20-0250.1.
Mcmichael, L., Mechem, D., Wang, S., Wang, Q., Kogan, Y., Teixeira, J. (2019). Assessing the mechanisms governing the daytime evolution of marine stratocumulus using large‚Äźeddy simulation. Quarterly Journal of the Royal Meteorological Society - Issue 719 | Volume 145. https://doi.org/10.1002/QJ.3469.
Mechem, D., Giangrande, S. (2018). The Challenge of Identifying Controls on Cloud Properties and Precipitation Onset for Cumulus Congestus Sampled During MC3E. Journal of Geophysical Research: Atmospheres - Issue 6 | Volume 123. https://doi.org/10.1002/2017JD027457.