Atmospheric Science

College of Engineering and Physical Sciences

Coltin Grasmick, Assoc. Research Scientist

Room 6024, Engineering Building
email: cgrasmic@uwyo.edu

Research Topics:

  • Dual wavelength radar applications using W- and Ka-band radars aboard the UW King Air.

Education:

  • A.Sc., General Science, Otero Junior College, 2013

  • B.Sc., Earth Science – Meteorology, University of Northern Colorado, 2015

  • M.Sc., Atmospheric Science, University of Wyoming, 2018

  • Ph.D., Atmospheric Science, University of Wyoming, 2021

  • Postdoc, Atmospheric Science, University of Wyoming, 2021

Selected Publications:

  • Hu, Y., Geerts, B., Deng, M., Grasmick, C., et al, 2023: Vertical structure and ice production processes of shallow convective postfrontal clouds over the Southern Ocean in MARCUS. Part I: Observational study. J. Atmos. Sci., doi:10.1175/JAS-D-21-0243.1.

  • Geerts, B., Grasmick, C., et al, 2023: Vertical motions forced by small-scale terrain and cloud microphysical response in extratropical precipitation systems. J. Atmos. Sci., doi:10.1175/JAS-D-22-0161.1

  • Grasmick, C., Geerts, B., French, J.R., Haimov, S., and R.M. Rauber, 2022: Estimating microphysics properties in ice-dominated clouds from airborne ka-w-band dual-wavelength ration reflectivity factor in close proximity to in situ probes. J. Atmos. Ocean. Technol., doi:10.1175/TECH-D-21-0147.1.

  • Zaremba, T.J., Rauber, R.M., Haimov, S., Geerts, B., French, J.R., Grasmick, C., et al, 2022: Vertical motions in orographic cloud systems over the Payette River Basin. Part II: Fixed and transient updrafts and their relationships to forcing. J. Appl. Meteorol., doi:10.1175/JAMC-D-21-0229.1.

  • Zaremba, T.J., Rauber, R.M., Haimov, S., Geerts, B., French, J.R., Grasmick, C., et al, 2022: Vertical motions in orographic cloud systems over the Payette River Basin. Part I: Recovery of vertical motions and their uncertainty from airborne doppler radial velocity measurements. J. Appl. Meteorol., doi:10.1175/JAMC-D-21-0228.1.

  • Grasmick, C., Geerts, B., Chu, X., French, J.R., and R.M. Rauber, 2021: Detailed dual-doppler structure of Kelvin-Helmholtz Waves from an airborne profiling radar over complex terrain. Part II: Evidence for precipitation enhancement from observations and modeling. J. Atmos. Sci., doi:10.1175/JAS-D-20-0392.1.

  • Lin, G., Grasmick, C., Geerts, B., Wang, Z., and M Deng, 2021: Convection initiation and bore formation following the collision of mesoscale boundaries over a developing stable boundary layer: a case study from PECAN. Mon. Wea. Rev., doi:10.1175/MWR-D-20-0282.1.

  • Grasmick, C., and B. Geerts, 2020: Detailed dual-Doppler structure of Kelvin-Helmholtz waves from an airborne profiling radar over complex terrain. Part I: Dynamic structure. J. Atmos. Sci., doi:10.1175/JAS-D-19-0108.1.

  • Lin, G., Geerts, B., Wang, Z., Grasmick, C., X. Jing, and J. Yang, 2019: Interactions Between a Nocturnal MCS and the Stable Boundary Layer, as Observed by an Airborne Compact Raman Lidar During PECAN. Mon. Wea. Rev., doi:10.1175/MWR-D-18-0388.1.

  • Grasmick, C., Geerts, B., Turner, D.D., Wang, Z., and T. M. Weckwerth, 2018: The Relation between Nocturnal MCS Evolution and Its Outflow Boundaries in the Stable Boundary Layer: An Observational Study of the 15 July 2015 MCS in PECAN. Wea.Rev., 146, 3203-3226, doi:10.1175/MWR-D-18-0169.1.

  • Mueller, D., Geerts, B., Wang, Z., Deng, M., and C. Grasmick, 2017: Evolution and Vertical Structure of an Undular Bore Observed on 20 June 2015 during PECAN. Mon. Wea. Rev., doi:10.1175/MWR-D-16-0305.1.

  • Laird, N.F., Metz, N.D., Gaudet, L., Grasmick, C. et al, 2016: Climatology of cold season lake-effect cloud bands for the North American Great Lakes. Int. J. Climatol., doi:10.1002/joc.4838.





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