Sebastian W. Hoch portrait
  • Research Assistant Professor, Atmospheric Sciences

Research Statement

I am interested in meteorological processes in complex terrain. The variation of the different terms of Surface Energy Budget, the diurnal development of the Atmospheric Boundary Layer, and thermally driven circulations are my key interests.

Research Keywords

  • Surface Energy Balance
  • Mountain Meteorology
  • Meteorological Instrumentation
  • Atmospheric Radiation
  • Atmospheric Boundary Layers

Research Groups

  • M. Jeglum, Graduate Student. Atmospheric Sciences. 09/2011 - present.

Presentations

  • Airflow analyses using thermal imaging in Arizona's Meteor Crater as part of METCRAX II A. Martina Grudzielanek, Roland Vogt, Jan Cermak, Mateja Maric, Iris Feigenwinter, C. David Whiteman, Manuela Lehner, Sebastian W. Hoch, Matthias G. Krauß, Christian Bernhofer, and Andrea Pitacco. Poster, Accepted, 03/10/2016.
  • UAV applications for thermodynamic profiling: Emphasis on ice fog research Ismail Gultepe, Andrew J. Heymsfield, Harindra J.S. Fernando, Sebastian W. Hoch, and Randolph Ware. Poster, Accepted, 03/10/2016.
  • Gultepe, I., L. S. Leo, E. R. Pardyjak, S. Hoch, E. Creegan, Z. Silver, S. D. Wekker, and H. J. S. Fernando, 2016: Ice Fog Microphysical Properties at High Elevations: MATERHORN Observations and Parameterizations. 96th American Meteorological Society Annual Meeting, New Orleans, LA, 10–14 January 2016. Conference Paper, Presented, 01/2016.
  • Di Sabatino, S., L. S. Leo, H. J. S. Fernando, E. R. Pardyjak, M. Lehner, C. D. Whiteman, and S. Hoch, 2016: Observations of evening and morning transition in valleys and slopes, 2016: 96th American Meteorological Society Annual Meeting, New Orleans, LA, 10–14 January 2016. Conference Paper, Presented, 01/2016.
  • Creegan, Edward D., C. M. Hocut, Y. Wang, Z. Silver, S. Hoch, L. S. Leo, S. Di Sabatino, H. J. S. Fernando, and E. Pardyjak, 2016: Synoptic Flow Interactions with an Isolated Mountain in Complex Terrain. 96th American Meteorological Society Annual Meeting, New Orleans, LA, 10–14 January 2016. Conference Paper, Presented, 01/2016.
  • Jeglum, M. and S. W. Hoch, 2015: Nocturnal Valley Cold Air Pool Displacement on a Desert Mountain Slope. American Geophysical Union Fall 2015 Meeting, San Francisco, CA, 14-18 December 2015. Conference Paper, Presented, 12/2015.
  • Whiteman, C. D., M. Lehner, S. W. Hoch, M. O. G. Hills, B. Adler, N. Kalthoff, T. Haiden, R. Vogt, M. Grudzielanek, I. Feigenwinter, M. Maric, J. Cermak, R. Rotunno, R. Calhoun, N. Cherukuru, 2015: Katabatically Driven Downslope Windstorm-Type Flows over the Inner Sidewall of Arizona's Barringer Meteorite Crater. American Geophysical Union Fall 2015 Meeting, San Francisco, CA, 14-18 December 2015. Invited Talk/Keynote, Presented, 12/2015.
  • Hoch, S. W. and C. David Whiteman, 2015: Estimating the ventilation of particle pollutants from the Bingham Canyon Mine during wintertime conditions. Trace Gas Interest Group Meeting, University of Utah, 17. November 2015. Other, Presented, 11/17/2015.
  • Hills, M., C. D. Whiteman, S. W. Hoch, M. Lehner, 2015: A parameter based approach to idealised numerical simulations of Meteor Crater downslope-windstorm-type flows. 33rd International Conference on Alpine Meteorology, Innsbruck, Austria, 31 Aug. - 4 Sep. 2015. Conference Paper, Presented, 09/2015.
  • Hoch, S. W., N. W. Cherukuru, R. Calhoun, C. D. Whiteman, M. Lehner, B. Adler, N. Kalthoff, and W. O. J. Brown, 2015: LiDAR observations during METCRAX-II. 33rd International Conference on Alpine Meteorology, Innsbruck, Austria, 31 Aug. - 4 Sep. 2015. Conference Paper, Presented, 09/2015.
  • Whiteman, C. D, M. Lehner, S. W. Hoch, M. O. G. Hills, N. Kalthoff, B Adler, R. Rotunno, R. Vogt, I. Feigenwinter, M. Grudzielanek, J. Cermak, T. Haiden, N. W. Cherukuru, R. Calhoun, 2015: The second Meteor Crater Experiment (METCRAX II): Introduction and overview of recent results. 33rd International Conference on Alpine Meteorology, Innsbruck, Austria, 31 Aug. - 4 Sep. 2015. Conference Paper, Presented, 09/2015.
  • Lehner, M., C. D. Whiteman, S. W. Hoch, B. Adler, N Kalthoff, R. Rotunno, 2015: Downslope-windstorm-type flows and seiches in the Meteor Crater - responses of the nocturnal crater atmosphere to an impinging katabatic flow. 33rd International Conference on Alpine Meteorology, Innsbruck, Austria, 31 Aug. - 4 Sep. 2015. Conference Paper, Presented, 09/2015.
  • Adler, B., N. Kalthoff, C. D. Whiteman, S. W. Hoch, M. Lehner, 2015: Upstream conditions controlling downslope-windstorm-type flows in Arizona’s Meteor Crater. 33rd International Conference on Alpine Meteorology, Innsbruck, Austria, 31 Aug. - 4 Sep. 2015. Conference Paper, Presented, 09/2015.
  • Maric, M., A. M. Grudzielanek, R. Vogt, J. Cermak, I. Feigenwinter, C. D. Whiteman, M. Lehner, S. W. Hoch, 2015: Evaluation of infrared imaging for measuring near-ground flow dynamics at the Barringer Meteor Crater as part of METCRAX II. 33rd International Conference on Alpine Meteorology, Innsbruck, Austria, 31 Aug. - 4 Sep. 2015. Poster, Presented, 09/2015.
  • Hoch, S. W., E. R. Pardyjak, 2015: Observations of radiative cooling and heating under clear sky and fog conditions. 33rd International Conference on Alpine Meteorology, Innsbruck, Austria, 31 Aug. - 4 Sep. 2015. Poster, Presented, 09/2015.
  • Kalthoff, N., Bianca Adler, M. Lehner, C. D. Whiteman, S. W. Hoch, 2015: Katabatic drainage flow characteristics on a low-angle slope around Arizona’s Meteor Crater. 33rd International Conference on Alpine Meteorology, Innsbruck, Austria, 31 Aug. - 4 Sep. 2015. Poster, Presented, 09/2015.
  • Feigenwinter, I., Roland Vogt, M. Müller, E Parlow, M. Grudzielanek, M. Maric, C. D. Whiteman, M. Lehner, S. W. Hoch, 2015: Visualization of high-resolution surface temperature data collected in the Barringer Meteor Crater during METCRAX II. 33rd International Conference on Alpine Meteorology, Innsbruck, Austria, 31 Aug. - 4 Sep. 2015. Poster, Presented, 09/2015.
  • Grudzielanek, A. M., R. Vogt, J. Cermak, I. Feigenwinter, M. Maric, C. D. Whiteman, M. Lehner, S. W. Hoch, M. G. Krausz, C. Bernhofer, A. Pitacco, 2015: Infrared imaging for air flow analyses in the Barringer Meteor Crater, Arizona, as part of METCRAX II. 33rd International Conference on Alpine Meteorology, Innsbruck, Austria, 31 Aug. - 4 Sep. 2015. Poster, Presented, 09/2015.
  • Chachere, C. N., Z. Pu, S. Hoch, E. R. Pardyjak, 2015: Evaluation of WRF forecasts of fog events against observations during MATERHORN Fog-X. 16th Conference on Mesoscale Processes, Boston, MA, 2 - 6 Aug. 2015. Poster, Presented, 08/2015.
  • Fernando, H. J. S., C. Hocut, Q. Zhong, S. W. Hoch, L. Leo, S. DiSabatino, E. Pardyjak, and D. Whiteman, 2014: Mixing induced by slope and valley flow collisions in complex terrain. AGU Fall Meeting 2014, San Francisco, CA, 15-19 December 2014. Conference Paper, Presented, 12/2014.
  • Cherukuru, N. W., R. Calhoun, M. Lehner, S. W. Hoch, C. D. Whiteman, and W. O. J. Brown, 2014: Instrument configuration for dual-Doppler LiDAR co-planar scans: METCRAX II. 16th Conf. Mountain Meteor., San Diego, CA, 18-22 August 2014. Conference Paper, Presented, 08/2014.
  • Jeglum, M. E. and S. W. Hoch, 2014: Multi-Scale Interactions in the Planetary Boundary Layer over Complex Terrain. 16th Amer. Meteor. Soc. Conf. on Mtn Meteor., San Diego, CA, 18-22 August 2014. Conference Paper, Presented, 08/2014.
  • Lehner, M., C. D. Whiteman, S. W. Hoch, N. W. Cherukuru, R. Calhoun, B. Adler, and N. Kalthoff, 2014: Downslope-windstorm-type flows in Arizona's Meteor Crater - Initial findings from METCRAX II. EGU General Assembly 2014, Vienna, Austria, 27 April - 2 May 2014. Poster. Poster, Presented, 04/2014.
  • Di Sabatino, Silvana, L. S. Leo, H. J. S. Fernando, A. Grachev, R. Dimitrova, Z. Silver, R. Quarta, T. Zsedrovits, T. Pratt, Z. Lin, D. Zajic, J. C. Pace, E. Pardyjak, D. Jensen, and S. W. Hoch, 2014: Observations of flow and turbulence in complex terrain during evening transition. 94th American Meteorological Society Annual Meeting, Atlanta, GA, 2-6 February 2014. Conference Paper, Presented, 02/2014.
  • Kulandaivelu, Vigneshwaran, D. D. Jenson, S. Hoch, and E. R. Pardyjak, 2014: Evaluation of turbulence budget terms and the spectra using highly resolved hot and cold wire measurements over a desert playa. 94th American Meteorological Society Annual Meeting, Atlanta, GA, 2-6 February 2014. Conference Paper, Presented, 02/2014.
  • Massey, Jeffrey D., W. J. Steenburgh, S. W. Hoch, and J. C. Knievel, 2014: Sensitivity of Near-Surface Temperature Forecasts to Soil Properties over a Dryland Region in Complex Terrain. 94th American Meteorological Society Annual Meeting, Atlanta, GA, 2-6 February 2014. Conference Paper, Presented, 02/2014.
  • Price, Tim, V. Kulandaivelu, D. Jensen, E. Pardyjak, S. Hoch, and H. J. S. Fernando, 2014: Near surface atmospheric turbulence and surface temperature correlations. 94th American Meteorological Society Annual Meeting, Atlanta, GA, 2-6 February 2014. Conference Paper, Presented, 02/2014.
  • Hocut, Christopher M., R. Dimitrova, Z. Silver, S. Di Sabatino, L. S. Leo, S. W. Hoch, Y. Wang, E. R. Pardyjak, and H. J. S. Fernando, 2014: Slope and Valley Flow Interactions in MATERHORN-1. 94th American Meteorological Society Annual Meeting, Atlanta, GA, 2-6 February 2014. Conference Paper, Presented, 02/2014.
  • Pu, Zhaoxia, H. Zhang, X. Zhang, E. Pardyjak, W. J. Steenburgh, D. Zajic, Y. Wang, S. DiSabatino, S. W. Hoch, S. F. J. De Wekker, J. Massey, M. E. Jeglum, C. D. Whiteman, and H. J. S. Fernando, 2014: Evaluation of the real-time WRF forecasts during the Mountain Terrain Atmospheric Modeling and Observations (MATERHORN) Program: Performance, comparison with observations, and further implications. 94th American Meteorological Society Annual Meeting, Atlanta, GA, 2-6 February 2014. Conference Paper, Presented, 02/2014.
  • Pardyjak, E. R, S. W. Hoch, D. Jensen, N. Gunawardena, S. Di Sabatino, C. D.Whiteman, C. Higgins, L. S. Leo, C. Hocut, H. J.S. Fernando: First observations of the effects of shadow fronts on surface layer dynamics during morning and evening transitions: MATERHORN-X Fall. Davos Atmosphere and Cryosphere Assembly (DACA), 8-12 July 2013. Conference Paper, Presented, 07/2013.
  • Jeglum M., S. W. Hoch, C. D. Whiteman, F. W. Gallagher: Flow Interactions Observed by a Very High-Resolution Surface Weather Station Network in Complex Terrain. 32nd International Conference on Alpine Meteorology, Kranjska Gora, Slovenia, 3-7 June 2013. Conference Paper, Presented, 06/2013.
  • Massey, Jeffrey D., University of Utah, Salt Lake City, UT; and W. J. Steenburgh, J. C. Knievel, M. E. Jeglum, and S. W. Hoch: Observations and Modeling of Thermally Driven Flows over the Great Salt Lake Desert. 15th Conference on Mountain Meteorology, Steamboat Springs, CO, 20-24 August 2012. Poster, Presented, 08/2012.
  • Hoch, S. W. 2009: Radiative flux divergence in the surface boundary layer from observational and model perspectives. 9th European Conference on Applied Climatology, 9th Annual Meeting of the European Meteorological Society, 28 Sept. - 2. Oct. 2009, Toulouse, France. Invited Talk/Keynote, Presented, 09/28/2009.
  • Hoch, S. W., and C. D. Whiteman: Radiative flux divergence within topography. Army Atmospheric Sciences Overview Meeting 3 - 4 February 2009, Research Triangle Park, Durham, NC, USA. Conference Paper, Presented, 02/04/2009.

Research Equipment and Testing Expertise

  • Measurements of solar and atmospheric (longwave) radiation using pyranometers and pyrgeometers. Wind LiDAR measurements. Wind Dopper SoDAR measurements. Contact: Sebastian Hoch , 801 581 7094 , 485 INSCC.

Publications

  • Gerber, F., Lehning, M., Hoch, S. W. & Mott, R. (2017). A close-ridge small-scale atmospheric flow field and its influence on snow accumulation. J. Geophys. Res. Atmos. Published, 08/2017.
  • Baasandorj, M., Hoch, S. W., Bares, R., Lin, J. C., Brown, S., Millet, D. B., Martin, R., Kelly, K., Zarsana, K. J., Whiteman, C. D., Dube, W. P., Tonnesen G., Jamarillo, I. C. & Sohl, s. (2017). Coupling between Chemical and Meteorological Processes under Persistent Cold-Air Pool Conditions: Evolution of Wintertime PM2.5 Pollution Events and N2O5 Observations in Utah’s Salt Lake Valley. ES&T. Published, 05/2017.
  • Jeglum, M. E., Hoch, S. W., Jensen, D. D., Dimitrova, R. & Silver, Z. (2017). Large Temperature Fluctuations due to Cold-Air Pool Displacement along the Lee Slope of a Desert Mountain. J. Appl. Meteor. Climatol. Published, 04/2017.
  • Massey, J. D., Steenburgh, W. J., Hoch, S. W. & Jensen, D. D. (2017). Simulated and Observed Surface Energy Balance Contrasts and Resulting Playa Breezes during the MATERHORN Field Campaigns. J. Appl. Meteor. Climatol. Published, 04/2017.
  • Jensen, D. D., Nadeau, D. F., Hoch, S. W. & Pardyjak, E. R., (2017). The evolution and sensitivity of katabatic flow dynamics to external influences through the evening transition. Q.J.R. Meteorol. Soc. Published, 02/2017.
  • Gultepe, I., Fernando, H.J.S., Pardyjak, E., Hoch, S.W., Silver, Z., Creegan, E., Leo, L.S., Pu, Z., de Wekker, S., Hang, C., 2016: An Overview of the MATERHORN Fog Project: Observations and Predictability. Pure Appl. Geophys. 173: 2983. doi:10.1007/s00024-016-1374-0. Published, 09/2016.
    http://link.springer.com/article/10.1007/s00024-01...
  • Hang, C., Nadeau, D.F., Gultepe, I., Hoch, S.W., Roman-Cascon, C, Pryor, K., Fernando, H.J.S., Creegan, E., Leo, L., Silver, Z. and Pardyjak, E., 2016: A Case Study of the Mechanisms Modulating the Evolution of Valley Fog. Pure Appl. Geophys., 173: 3011. doi:10.1007/s00024-016-1370-4. Published, 09/2016.
  • Fernando, H. J. S., and co-authors, 2014: The MATERHORN – Unraveling the intricacies of mountain weather. Bull. Amer. Meteor. Soc., 96, 11, 1945-1967, doi: 10.1175/BAMS-D-13-00131.1. Published, 11/2015.
  • Hang,C., E. R. Pardyjak, D. F. Nadeau, D. Jensen, S. W. Hoch, 2015: Playa Soil Moisture and Evaporation Dynamics During the MATERHORN Field Program. Submitted to Boundary Layer Meteorology. Published, 07/2015.
  • Jensen, D., D. F. Nadeau, S. W. Hoch, E. R. Pardyjak, 2015: Flux-gradient relationships over contrasting surfaces during the evening transition. Submitted to Boundary Layer Meteorology. Published, 07/2015.
  • Blay-Carreras, E., Pardyjak, E. R., Pino, D., Hoch, S. W., Cuxart, J., Martínez, D., & Reuder, J., 2015: Lifted temperature minimum during the atmospheric evening transition. Atmospheric Chemistry and Physics, 15(12), 6981-6991. 10.5194/acp-15-6981-2015. Published, 06/2015.
  • Lehner, M., C. D. Whiteman, S. W. Hoch, D. Jensen, E. R. Pardyjak, L. S. Leo, S. Di Sabatino & H. J. S. Fernando (2015). A case study of the nocturnal boundary-layer evolution on a slope at the foot of a desert mountain. J. Appl. Meteor. Climatol. Published, 04/15/2015.
  • Hall, S. J., G. Maurer, S. W. Hoch, R. Taylor, D. R. Bowling, 2014: Impacts of anthropogenic emissions and cold air pools on urban to montane gradients of snowpack ion concentrations in the Wasatch Mountains, Utah. Atmos. Environ., 98, 231-241. Published, 12/2014.
    http://www.sciencedirect.com/science/article/pii/S...
  • C. David Whiteman and Sebastian W. Hoch, 2014: Pseudovertical Temperature Profiles in a Broad Valley from Lines of Temperature Sensors on Sidewalls. J. Appl. Meteor. Climatol., 53, 2430–2437. doi: http://dx.doi.org/10.1175/JAMC-D-14-0177.1. Published, 11/2014.
  • Whiteman, C. D., S. W. Hoch, J. D. Horel, A. Charland, 2014: Relationship between particulate air pollution and meteorological variables in Utah's Salt Lake Valley. Atmos. Environ., 94, 742-753. Published, 09/2014.
    http://www.sciencedirect.com/science/article/pii/S...
  • Massey, J. D., W. J. Steenburgh, S W. Hoch, and J. C. Knievel, 2014: Sensitivity of Near-Surface Temperature Forecasts to Soil Properties over a Sparsely Vegetated Dryland Region. Submitted to J. Appl. Meteor. Climatol. Published, 08/2014.
    http://journals.ametsoc.org/doi/abs/10.1175/JAMC-D...
  • Martinez-Villagrassa, D., M. Lehner, C. D. Whiteman, S. W. Hoch, and J. C. Cuxart, 2013: The upslope-downslope flow transition on a basin sidewall. J. Appl. Meteor. Climatol., 52 (12), 2715-2734. Published, 12/12/2013.
  • Chrust, M. F., C. D. Whiteman, and S. W. Hoch, 2013: Observations of thermally driven wind jets at the exit of Weber Canyon, Utah. J. Appl. Meteor. Climatol., 52, 1187-1200. Published, 05/15/2013.
  • Lareau, N., E. Crosman, C. D. Whiteman, J. D. Horel, S. W. Hoch, W. O. J. Brown, and T. W. Horst, 2013: The Persistent Cold-Air Pool Study. Bull. Amer. Meteor Soc., 94,51-63. Published, 01/2013.
  • Adler, B., C. D. Whiteman, S. W. Hoch, M. Lehner, and N. Kalthoff, 2012: Warm-Air Intrusions in Arizona’s Meteor Crater. J. Appl. Meteor. Climatol., 51, 1010-1025. Published, 06/2012.
  • Hoch, S. W., C. D. Whiteman, and B. Mayer, 2011: A systematic study of radiative heating and cooling within valleys and basins using a three-dimensional radiative transfer model. J. Appl. Meteor. Climatol., 50, 2473-2489. Published, 12/2011.
    http://journals.ametsoc.org/doi/abs/10.1175/JAMC-D...
  • Haiden, T., C. D. Whiteman, S. W. Hoch, and M. Lehner, 2011: A mass-flux model of nocturnal cold air intrusions into a closed basin. J. Appl. Meteor. Climatol., 50, pp. 933-943. Published, 05/2011.
    http://journals.ametsoc.org/doi/abs/10.1175/2010JA...
  • Lehner, M., C. D. Whiteman, and S. W. Hoch, 2011: Diurnal cycle of thermally driven cross-basin winds in Arizona's Meteor Crater. J. Appl. Meteor. Climatol., 50, 729-744. Published, 03/2011.
    http://journals.ametsoc.org/doi/abs/10.1175/2010JA...
  • Mayer, B., S. W. Hoch, and C. D. Whiteman, 2010: Validating the MYSTIC three-dimensional radiative transfer model with observations from the complex topography of Arizona's Meteor Crater. Atmos. Chem Phys., 10, 8685-8696. doi:10.5194/acp-10-8685-2010. Published, 09/16/2010.
    http://www.atmos-chem-phys.org/10/issue18.html
  • Whiteman, C. D., S. W. Hoch, M. Lehner, and T. Haiden, 2010: Nocturnal cold air intrusions into Arizona's Meteor Crater: Observational evidence and conceptual model. J. Appl. Meteor. Climatol., 49, 1894-1905. Published, 09/2010.
    http://journals.ametsoc.org/toc/apme/49/9
  • Hoch, S. W., and C. D. Whiteman, 2010: Topographic effects on the surface radiation balance in and around Arizona's Meteor Crater. J. Appl. Meteor. Climat., 49, 1114-1128. Published, 06/2010.
    http://journals.ametsoc.org/toc/apme/49/6
  • C. D. Whiteman, S. W. Hoch and G. S. Poulos, 2009: Evening Temperature Rises on Valley Floors and Slopes: Their Causes and Their Relationship to the Thermally Driven Wind System. JAMC, 48, 4, pp 776-788, DOI: 10.1175/2008JAMC2028.1. Published, 09/2009.