Steve Koch
CIRA Fellow, CIRA Advisory Council
Office: D.Skaggs Resch. Cntr., Rm 3B124
Phone: (303) 497-5487
Fax: (303) 497-6821
Mailing Address:
Steve Koch
Global Systems Division, Director's Office
325 Broadway
Boulder CO 80305-3328
E-mail:
Selected Publications
  • Lu, C. G., Koch, S. E., 2008: Gravity waves and turbulence in spectral, structure functional, and multifractal spaces, First US-China Symposium in Mesoscale Meteorology and Data Assimilation.February 26-28, 2008, Norman, OK
  • Lu, C. G., Koch, S. E., 2008: Interaction of upper-tropospheric turbulence and gravity waves as obtained from spectral and structure function analyses, Journal of the Atmospheric Sciences, vol. 65, 2676-2690
  • Tollerud, E. I., Albers, S. C., Bartels, D. L., Birkenheuer, D. L., Brewer, W. A., Caracena, F., Collander, R. S., Hardesty, R. M., Jamison, B. D., Kiemle, C., Koch, S. E., McCarty, B. J., Shaw, B. L., 2008: Mesoscale moisture transport by the low-level jet during the IHOP field experiment , Monthly Weather Review, vol. 136, 3781-3795
  • Koch, S. E., Bedka, K.M., Fabry, F., Feltz, W., Geerts, B., Miller, D., Pagowski, M., Wilson, J., 2008: Turbulent mixing processes in atmospheric bores and solitary waves deduced from profiling systems and numerical simulation, Monthly Weather Review, vol. 136, 1373-1400
  • Koch, S. E., Flamant, C., Gentry, B., Jamison, B. D., Wilson, J., 2007: An atmospheric soliton observed with Doppler radar, differential absorption lidar, and a molecular Doppler lidar , Journal of Atmospheric and Oceanic Technology; 2007 early online release, vol. 2007 early online release, posted February 2008 ,
  • Szoke, E. J., Barjenbruch, D. B., Koch, S. E., Wesley, D. A., 2007: Evaluation of the NCEP WRF NMM and ARW models for some recent high-impact weather events, AMS 22nd Conference on Weather Analysis and Forecasting.June 25-29, 2007, Park City, Utah
  • Jankov, I, Gallus Jr., W. A., Koch, S. E., Segal, M, 2007: Influence of initial conditions on the WRF-ARW model QPF response to physical parameterization changes, Weather and Forecasting, vol. 22, 501-519
  • Lu, C. G., Koch, S. E., McGinley, J. A., Schultz, P. J., Tollerud, E. I., Yuan, H., 2007: Scale-dependent precipitation forecast error in the GFS, AMS 22nd Conference on Weather Analysis and Forecasting & 18th Conference on Numerical Weather Prediction.June 25-29, 2007, Park City, Utah
  • Jankov, I, Anderson, C. J., Koch, S. E., Schultz, P. J., 2007: The impact of different physical parameterizations and their interactions on cold season QPF in the American River Basin, Journal of Hydrometeorology, vol. 8, 1141-1151
  • Lu, C. G., Koch, S. E., McGinley, J. A., Schultz, P. J., Tollerud, E. I., Yuan, H., 2007: Time-frequency localization and long- and short-term memories in the GFS precipitation forecasts, AMS 22nd Conference on Weather Analysis and Forecasting & 18th Conference on Numerical Weather Prediction.June 25-29, 2007, Park City, Utah
  • Lu, C. G., Koch, S. E., McGinley, J. A., Schultz, P. J., Tollerud, E. I., Wang, N., Yuan, H., 2007: Towards understanding of uncertainties of global QPF and QPE from satellite and NWP model fields, (In revision) Monthly Weather Review, vol. ,
  • Koch, S. E., Lu, C. G., 2007: Turbulence and gravity waves in a dynamically unbalanced upper-level jet-frontal system, AMS 16th Conference on Atmospheric and Oceanic Fluid Dynamics.June 25-29, 2007, Santa Fe, New Mexico
  • Lu, C. G., Hall, W., Koch, S. E., 2006: High-resolution numerical simulation of gravity wave-induced turbulence in association with an upper-level jet system, AMS 12th Conference on Aviation, Range, and Aerospace Meteorology (ARAM).January 30-February 2, 2006, Atlanta, GA
  • Lu, C. G., Koch, S. E., 2006: Interaction of upper-tropospheric turbulence and gravity waves as observed from spectral and structure funcion analysis, Journal of Geophysical Research (submitted)
  • Koch, S. E., Lu, C. G., 2006: The generation of gravity waves in unbalanced jet streams, The 2006 European Geosciences Union Conference.2006, Vienna, Austria
  • Jankov, I, Gallus Jr., W. A., Koch, S. E., Segal, M., 2006: The role of physical scheme interactions in design of a mixed-physics ensemble for warm season MCS rainfall forecasting, Second International Symposium on Quantitative Precipitation Forecasting and Hydrology.June 4-8, 2006, Boulder, CO
  • Koch, S. E., Lu, C. G., 2006: Turbulence generation by gravity waves within upper-level jet-front systems, The Doug Lilly Symposium.January 30 - February 2, 2006, Atlanta, GA
  • Collander, R. S., Caracena, F., Jamison, B. D., Koch, S. E., Lu, C. G., Tollerud, E. I., 2006: Turbulence in MCS anvils: Observations and analyses from BAMEX, AMS 12th Conference on Aviation, Range, and Aerospace Meteorology (ARAM).January 30-February 2, 2006, Atlanta, GA
  • Xie, Y. F., Albers, S. C., Koch, S. E., McGinley, J. A., Wang, N., 2005: A sequential variational analysis approach for mesoscale data assimilation, 21st Conference on Weather Analysis and Forecasting.August 1-5, 2005, Washington, DC
  • Szoke, E. J., Koch, S. E., Novak, D., 2005: An examination of the performance of two high-resolution numerical models for forecasting extended snow bands during the DTC winter forecast experiment, 21st Conference on Weather Analysis and Forecasting.August 1-5, 2005, Washington, DC
  • Lu, C. G., Koch, S. E., Wang, N., 2005: Determination of temporal and spatial characteristics of atmospheric gravity waves combining cross-spectral analysis and wavelet transformation, Journal of Geophysical Research, vol. 110,
  • Jankov, I, Gallus Jr., W. A., Koch, S. E., Segal, M., 2005: Influence of initial conditions on the WRF-ARW model QPF response to physical parameterization changes, Weather and Forecasting (submitted)
  • Koch, S. E., DiMego, G. J., Edman, A., Gall, R., Graham, R., Jackson, M., Manousos, P., Meisner, B., Nietfeld, D., Seaman, N., Szoke, E. J., Waldstreicher, J., 2005: Lessons learned from the DTC winter forecast experiment, 17th Conference on Numerical Weather Prediction.August 1-5, 2005, Washington, DC
  • Tollerud, E. I., Albers, S. C., Bartels, D. L., Birkenheuer, D. L., Brewer, W. A., Caracena, F., Collander, R. S., Hardesty, R. M., Jamison, B. D., Kiemie, C., Koch, S. E., McCarty, B. J., Shaw, B. L., 2005: Mesoscale moisture transport by the low-level jet during the IHOP field experiment, 11th Conference on Mesoscale Processes.October 24-28, 2005, Albuquerque, NM
  • Lu, C. G., Koch, S. E., Wang, N., Zhang, F., 2005: Modeled mesoscale gravity waves: continuous spectrum and energy cascade, 11th Conference on Mesoscale Processes.October 24-28, 2005, Albuquerque, NM
  • Koch, S. E., Albers, S. C., McGinley, J. A., Xie, Y. F., 2005: Nowcasting applications of the space-time mesoscale analysis system, 21st Conference on Weather Analysis and Forecasting.August 1-5, 2005, Washington, DC
  • Lu, C. G., Koch, S. E., Wang, N., 2005: Stokes paramenter analysis of a packet of turbulence-generating gravity waves, Journal of Geophysical Research, vol. 110,
  • Koch, S. E., Ferrier, B. S., Kain, J. S., Stoelinga, M. T., Szoke, E. J., Weiss, S. J., 2005: The use of simulated radar reflectivity fields in the diagnosis of mesoscale phenomena from high-resolution WRF model forecasts, 11th Conference on Mesoscale Processes.October 24-28, 2005, Albuquerque, NM
  • Koch, S. E., Cooper, O. R., Girz, C. M., Jamison, B. D., Lane, T. P., Lu, C. G., Parrish, D. D., Shapiro, M. A., Smith, T. L., Tollerud, E. I., Wang, N., 2005: Turbulence and gravity waves within an upper-level front, Journal of the Atmospheric Sciences, vol. 62, 3885-3908
  • Koch, S. E., Albers, S. C., McGinley, J. A., Miller, P. A., Wang, N., Xie, Y. F., 2004: A new approach for mesoscale surface analysis: The space-time mesoscale analysis system (STMAS)., AMS 11th Conference on Aviation, Range, and Aerospace Meteorology and the 22nd Conference on Severe Local Storms.October 4-8, 2004, Hyannis, MA
  • Koch, S. E., Cooper, O. R., Girz, C. M., Jamison, B. D., Lane, T. P., Parrish, D. D., Shapiro, M. A., Smith, T. L., Tollerud, E. I., Wang, N., 2004: Analysis of turbulence generation by gravity waves within an upper-tropospheric front, AMS 11th Conference on Aviation, Range, and Aerospace Meteorology and the 22nd Conference on Severe Local Storms.October 4-8, 2004, Hyannis, MA
  • Koch, S. E., Cooper, O. R., Girz, C. M., Jamison, B. D., Lane, T. P., Parrish, D. D., Shapiro, M. A., Smith, T. L., Tollerud, E. I., Wang, N., 2004: Analysis of turbulence generation by gravity waves within an upper-tropospheric front, Journal of Atmospheric Sciences (accepted)
  • Lu, C. G., Koch, S. E., Wang, N., 2004: Application of wavelet analysis techniques to the study of turbulence and gravity waves using aircraft data and mesoscale model fields, AMS 11th Conference on Aviation, Range, and Aerospace Meteorology and the 22nd Conference on Severe Local Storms.October 4-8, 2004, Hyannis, MA
  • Pagowski, M., Bao, J. W., Koch, S. E., 2004: Modeling entrainment and boundary layer growth during a bore event using different turbulence parameterizations and LESs, 20th Conference on Weather Analysis and Forecasting., Seattle, WA
  • Tollerud, E. I., Caracena, F., Ehret, G., Hardesty, R. M., Jamison, B. D., Koch, S. E., 2004: Multiscale analyses of moisture transport by the central plains low-level jet during IHOP, 20th Conference on Weather Analysis and Forecasting and AMS 16th Conference on Numerical Weather Prediction., Seattle, WA
  • Bartels, D. L., Caracena, F., Jamison, B. D., Koch, S. E., Tollerud, E. I., 2004: Observations of turbulence during BAMEX missions, AMS 11th Conference on Aviation, Range, and Aerospace Meteorology and the 22nd Conference on Severe Local Storms.October 4-8, 2004, Hyannis, MA
  • Weygandt, S. S., Barker, D. M., Belmonte, A., Benjamin, S. G., Devenyi, D., Feingold, G., Hardesty, R. M., Koch, S. E., Marroquin, A., Rye, B., Schlatter, T. W., Smart, J. R., Zhang, Q., 2004: Potential forecast impacts from space-based lidar winds: Results from a regional observing simulation experiment, 20th Conference on Weather Analysis and Forecasting and AMS 16th Conference on Numerical Weather Prediction.January 10-15, 2005, Seattle, WA
  • Koch, S. E., Albers, S. C., Benjamin, S. G., Birkenheuer, D. L., Brown, J. M., Grell, G. A., McGinley, J. A., Peckham, S. E., Schultz, P. J., Shaw, B. L., Smirnova, T. G., Szoke, E. J., 2004: Real-time applications of the WRF model at the forecast systems laboratory, 20th Conference on Weather Analysis and Forecasting and AMS 16th Conference on Numerical Weather Prediction., Seattle, WA
  • Koch, S. E., 2004: Structure and dynamics of atmospheric solitons during IHOP
  • Koch, S. E., Benjamin, S. G., Schwartz, B. E., Szoke, E. J., 2004: The value of wind profiler data in U.S. weather forecasting, 20th Conference on Weather Analysis and Forecasting and AMS 16th Conference on Numerical Weather Prediction.January 10-15, 2004, Seattle, WA
  • Benjamin, S. G., Koch, S. E., Schwartz, B. E., Szoke, E. J., 2004: The value of wind profiler data in U.S. weather forecasting, Bulletin of the American Meterological Society, vol. 85, 1871
  • Koch, S. E., Cooper, O. R., Girz, C. M., Jamison, B. D., Lane, T. P., Lu, C. G., Parrish, D. D., Shapiro, M. A., Smith, T. L., Tollerud, E. I., Wang, N., 2004: Turbulence and gravity waves within an upper-level front, AMS 11th Conference on Aviation, Range, and Aerospace Meteorology.October 4-8, 2004, Hyannis, MA
  • Xie, Y. F., Koch, S. E., MacDonald, A. E., 2003: Advantages of using vorticity and divergence as control variables for three-dimensional variational systems, M. Wea. Res. (in prep)
  • Koch, S. E., Fabry, F., Geerts, B., Weckwerth, T., Wilson, J., 2003: Evolving structure and dynamics of bore events in IHOP, AMS 10th Conference on Mesoscale Processes.June 23-27, 2003, Portland, OR
  • Koch, S. E., Cooper, O. R., Jamison, B. D., Lu, C. G., Parrish, C., Shapiro, M. A., Smith, T. L., Tollerud, E. I., Wang, N., 2003: Field observations and RUC model simulations of turbulencce and gravity waves, AMS 10th Conference on Mesoscale Processes.June 23-27, 2003, Portland, OR
  • Koch, S. E., Demoz, B., Fabry, F., Feltz, W., Geerts, B., Gentry, B., Pagowski, M., Parsons, D., Schwemmer, G., Weckwerth, T., Wilson, J., 2003: Structure and dynamics of a dual bore event during IHOP as revealed by remote sensing and numerical simulation, International Symposium on Tropospheric Profiling.2003, Leipzig, Germany
  • Flamant, C., Demoz, B., DiGirolamo, P., Fabry, F., Feltz, W., Gentry, B., Koch, S. E., Pagowski, M., Parsons, D., Schwemmer, G., Weckwerth, T., Whiteman, D., Wilson, J., 2003: The life cycle of a bore event over the US Southern Great Plains IHOP-2002, AMS 10th Conference on Mesoscale Processes.June 23-27, 2003, Portland, OR
  • Tollerud, E. I., Caracena, F., Koch, S. E., Marroquin, A., Moody, J. L., Wimmers, A. J., 2001: MCS development within continental-scale elongated dry filaments in GOES water vapor images, AMS 11th Conference on Satellite Meteorology and Oceanography.October 15-19, 2001, Madison, WI
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