Reviewed Publications


Luchetti, N. T., K. Friedrich, C. E. Rodell, J. K. Lundquist, 2020:  Characterizing Thunderstorm Gust Fronts Near Complex Terrain. Mon. Wea. Rev.

Wallace, R., K. Friedrich, W. Deierling, E. A. Kalina, P. Schlatter, 2020: The Lightning and Dual-Polarization Radar Characteristics of Three Hail-Accumulating ThunderstormsWea. Forecasting

Cann, M., K. Friedrich, 2020: The Role of Moisture Pathways on Snowfall Amount and Distribution in the Southwest Central Mountains of Idaho. Mon. Wea. Rev., 148, 2033–2048,

Friedrich, K., K. Ikeda, S. A. Tessendorf, J. R. French, R. M. Rauber, B. Geerts, L. Xue, R. M. Rasmussen, D. R. Blestrud, M. L. Kunkel, N. Dawson, and S. Parkinson, 2020: Quantifying snowfall from orographic cloud seeding. Proceedings of the National Academy of Sciences of the United States of America. Feb 2020, 201917204; DOI: 10.1073/pnas.1917204117


McCaffey, K., J. M. Wilczak, L. Bianco, E. Grimit, J. Sharp, R. Banta, K. Friedrich, H. J. S. Fernando, R. Krishnamurthy, L. Leo. P. Muradyan, 2020: Identification and characterization of persistent cold pool events from temperature and wind profilers in the Columbia River Basin. J. Appl. Meteor. Climatol., 58, 2533-2551.

Rauber, B., B. Geerts, L. Xue, J. French, K. Friedrich, R. Rasmussen, S. Tessendorf, D. Blestrud, M. Kunkel, S. Parkinson, 2019: Wintertime Orographic Cloud Seeding-A Review. J. Appl. Meteor. Climatol., 58, 2117-2140.

Saltikoff, E., K. Friedrich, J. Soderholm, K. Lengfeld, B. Nelson, A. Becker, R. Hollmann, B. Urban, M. Heistermann, C. Tasson: An overview of using weather radar for climatological studies: Successes, challenges and potential. Bull. Amer. Meteor. Soc.,100, 1739–1752.

Wilczak, J., M. Stoelinga, L. Berg, J. Sharp; C. Draxl, K. McCaffrey, R. Banta; L. Bianco, I. Djalalova, J. K. Lundquist; P. Muradyan, A. Choukulkar, L. Leo; T. Bonin, Y. Pichugina; R. Eckman, C. Long; K. Lantz; R. Worsnop; J. Bickford, N.Bodini, D. Chand, A. Clifton, J. Cline, D. Cook, H. J.S. Fernando, K. Friedrich, R. Krishnamurthy, M. Marquis, J. McCaa, J. Olson, S. Otarola-Bustos, G. Scott, W. J. Shaw, S. Wharton, A. B. White, 2019: The Second Wind Forecast Improvement Project (WFIP2): Observational Field Campaign. Bull. Amer. Meteor. Soc.,100, 1701–1723.

Wallace, R., K. Friedrich, E.A. Kalina, and P. Schlatter, 2019: Using operational radar to identify deep hail accumulations from thunderstorms. Wea. Forecasting, 34, 133-150.

Friedrich, K., R. Wallace, B. Meier, N. Rydell, W. Deierling, E. Kalina, B. Motta, P. Schlatter, T. Schlatter, and N. Doesken, 2019: CHAT – the Colorado Hail Accumulation from Thunderstorms project. Bull. Amer. Meteor. Soc., 100,  459-471.

Tessendorf, S. A., J. R. French, K. Friedrich, B. Geerts, R. M. Rauber, R. M. Rasmussen, L. Xue, K. Ikeda, D. R. Blestrud, M. L. Kinkel, S. Parkinson, J. S. Snider, J. Aikins, S. Faber, A. Majewski, C. Grasmick, P. T. Bergmaier, A. Janiszeski, A. Springer, C. Weeks, D. J. Serke, R. Bruintjes, 2018: A transformational approach to winter orographic weather modification research: The SNOWIE Project. Bull. Meteor. Soc., 100, 71-92.


Friedrich, K., R. L. Grossman, J. Huntington, P. D. Blanken, J. Lenters, K. D. Holman, D. Gochis, B. Livneh, J. Prairie, E. Skeie, N. C. Healey, K. Dahm, C. Pearson, T. Finnessey, S. J. Hook, T. Kowalski, 2017: Reservoir Evaporation in the Western United States: Current Science, Challenges, and Future Needs. Bull. Meteor. Soc., 99, 167-187.

French, J. R., K. Friedrich, S. Tessendorf, R. Rauber, B. Geerts, R. Rasmussen, L. Xue, M. Kinkel, and D, Blestrud, 2018: Precipitation formation from orographic cloud seeding. Proceedings of the National Academy of Sciences of the United States of America. 201716995; DOI: 10.1073/pnas.171699511.


Edwin, S. G., N. Mölders, K. Friedrich, S. Schmidt, and R. Thoman, 2017: Conditions supporting funnel cloud development in Alaska. Atmospheric and Climate Sciences7, 223-245. doi: 10.4236/acs.2017.72016.

Bianco, L., K. Friedrich, J. Wilczak, D. Hazen, D. Wolfe, R. Delgado, S. Oncley, and J. K. Lundquist, 2017: Assessing the accuracy of microwave radiometers and radio acoustic sounding systems for wind energy applications. Atmos. Meas. Tech., 10, 1707-1721, doi:10.5194/amt-10-1707-2017

Lundquist, J. K., J. M. Wilczak, R. Ashton, L. Bianco, W. A. Brewer, A. Choukulkar, A. J. Clifton, M. Debnath, R. Delgado, K. Friedrich and co-authors 2017: Assessing state-of-the-art capabilities for probing the atmospheric boundary layer: the XPIA field campaign. Bull. Meteor. Soc., 98, 290-314.

Pokharel B., B. Geerts, X. Jing, K. Friedrich, K. Ikeda, R. Rasmussen, 2017: A Multi-sensor Study of the Impact of Ground-based Glaciogenic Seeding on Clouds and Precipitation over Mountains in Wyoming. Part II: Seeding Impact Analysis. Atmospheric Research. 138, 42–57.


Aikins, J., K. Friedrich, B. Geerts, and B. Pokharel, 2016: Role of a Low-Level Jet and Turbulence on Winter Orographic SnowfallMon. Wea. Rev.144, 3277–3300,

Livneh, B., K. Friedrich, and P. Blanken, 2016: New Interest in Reservoir Evaporation for Western U.S. Water Resource Management. Eos97, doi:10.1029/2016EO048679.

Kalina, E. A., K. Friedrich, B. C. Motta, W. Deierling, G. T. Stano, N. N. Rydell, 2016: Colorado plowable hail storms: Synoptic weather, radar and lighting characteristics. Weather and Forecasting, 31, 663-693.

Friedrich, K., E. A. Kalina, J. Aikins, D. Gochis, and R. Rasmussen, 2016: Precipitation and cloud structures of intense rain during the 2013 Great Colorado Flood. J. Hydromet., 17, 27-52.

Friedrich, K., E. A. Kalina, J. Aikins, J. Sun, D. Gochis, P. Kucera, K. Ikeda, and M. Steiner, 2016: Raindrop size distribution and rain characteristics during the 2013 Great Colorado FloodJ. Hydromet.17, 53-72.


Jing X., B. Geerts, K. Friedrich, and B. Pokharel, 2015: Dual-Polarization Radar Data Analysis of the Impact of Ground-Based Glaciogenic Seeding on Winter Orographic Clouds. Part I: Mostly Stratiform CloudsJ. Appl. Meteor. Climatol.54, 1944-1969.

Gochis, D., R. Schumacher, K. Friedrich, N. Doesken, M. Kelch, J. Sun, K. Ikeda, D. Lindsey, A. Wood, B. Dolan and others (26 authors), 2015: The great Colorado flood of September 2013Bull. Meteor. Soc., 96, 1461–1487.


Bluestein, H. and co-authors, 2014: Radar in Atmospheric Sciences and Related Research: Current Systems, Emerging Technology, and Future Needs. Bull. Amer. Meteor. Soc., 95, 1850–1861.

Rudolph, J. V., and K. Friedrich, 2014: Dynamic and Thermodynamic Predictors of Vertical Structure in Radar-Observed Regional Precipitation. J. Clim., 27, 2143-2158.

Kalina, E. A., K. Friedrich, S. M. Ellis, and D. W. Burgess, 2014: Comparison of disdrometer and X-band mobile radar observations in convective precipitation. Mon. Wea. Rev., 142, 2414–2435.

Kalina, E. A., K. Friedrich, H. Morrison, and G. Bryan, 2014: Aerosol Effects on Simulated Supercell Thunderstorms in Different Environments. J. Atmos. Sci., 71, 4558-4580.

Pokharel, B., B. Geerts, X. Jing, K. Friedrich, J. Aikins, D. Breed, R. Rasmussen, and A. Huggins, 2014: The impact of ground-based glaciogenic seeding on clouds and precipitation over mountains: a multi-sensor case study of shallow precipitating orographic cumuli. Atmos. Res., 147-148, 162-182.


Geerts, B., B. Pokharel, K. Friedrich, D. Breed, R. Rasmussen, Y. Yang, Q. Miao, S. Haimov, B. Boe, and B. Lawrence, 2013: The AgI Seeding Cloud Impact Investigation (ASCII) campaign 2012: overview and preliminary results. J. Wea. Mod.45, 24-43.

Friedrich, K., S. Higgins, F. J. Masters and C. R. Lopez, 2013: Articulating and stationary PARSIVEL disdrometer in severe weather. J. Atmos. Ocean Technol., 30, 2063-2080.

Rudolph, J. V., and K. Friedrich, 2013: Seasonality of vertical structure in radar-observed precipitation over southern Switzerland. J. Hydromet., 14, 318-330.

Friedrich, K., E. A. Kalina, F. J. Masters and C. R. Lopez, 2013: Drop-size distributions in thunderstorms measured by optical disdrometers during VORTEX2. Mon. Wea. Rev., 141, 1182-1203.



Rudolph, J., K. Friedrich, and U. Germann, 2012: Model-based estimation of dynamic effect on 21st century precipitation for Swiss river basins. J. Climate25, 2897-2913.

Friedrich, K., J. K. Lundquist,M. Aitken, E. A. Kalina, and R. F. Marshall, 2012: Stability and turbulence in the atmospheric boundary layer: A comparison of remote sensing and tower observationsGeophys. Res. Lett.39, No. 3, L03801, doi:10.1029/2011GL050413.


Rudolph, J., K. Friedrich, and U. Germann, 2011: Relationship between radar-estimated precipitation and synoptic weather patterns in the European Alps. J. Appl. Meteor. Climatol., 50, 944–957.


Dotzek, N., and K. Friedrich, 2009: Downburst-producing thunderstorms in southern Germany: Radar analysis and predictabilityAtmos. Res.93, 457-473.

Friedrich, K., U. Germann, and P. Tabary, 2009: Influence of ground clutter contamination on the accuracy of polarimetric quantities and rainfall rate. J. Atmos. Oceanic Technol., 26, 251-269.


Friedrich, K., D. E. Kingsmill, C. Flamant, H. V. Murphey, and R. M. Wakimoto, 2008: Kinematic and moisture characteristics of a nonprecipitating cold front observed during IHOP. Part II: Along-front structures. Mon. Wea. Rev., 136, 3796-3821.

Friedrich, K., D. E. Kingsmill, C. Flamant, H. V. Murphey, and R. M. Wakimoto, 2008: Kinematic and moisture characteristics of a nonprecipitating cold front observed during IHOP. Part I: Across-front structures. Mon. Wea. Rev., 136, 147-172.


Friedrich, K., U. Germann, J. J. Gourley, and P. Tabary, 2007: Effects of radar beam shielding on rainfall rate estimation for polarimetric C-band radar. J. Atmos. Ocean Technol., 24, 1839-1859.


Friedrich, K., M. Hagen, and T. Einfalt, 2006: A quality control concept for radar reflectivity, polarimetric parameters, and Doppler velocity. J. Atmos. Ocean Technol., 23, 865-887.


Friedrich, K., D. E. Kingsmill, and C. R. Young, 2005: Misocyclone characteristics along Florida gust fronts during CaPE. Mon. Wea. Rev., 133, 3345-3367.


Friedrich, K., and M. Hagen, 2004: Evaluation of wind vectors measured by a bistatic Doppler radar network. J. Atmos. Oceanic Technol., 21, 1840-1854.

Friedrich, K., and M. Hagen, 2004: On the use of advanced Doppler radar techniques to determine horizontal wind-fields for operational weather surveillance. Meteor. Appl., 11, 155-171.

Friedrich, K., and O. Caumont, 2004: Dealiasing Doppler velocities measured by a bistatic radar network during a downburst-producing thunderstorm. J. Atmos. Oceanic Technol., 21, 717-729.

Friedrich, K., and M. Hagen, 2004: Wind synthesis and quality control of dual-Doppler derived horizontal wind-fields. J. Appl. Meteor., 43, 38-57.


Friedrich, K., 2002: Determination of three-dimensional wind-vector fields using a bistatic Doppler radar network. Ph.D. thesis, Dep. of Physics, Ludwig-Maximilians University Munich; 135 pp., DLR-FB2002-05.

Tetzlaff, G., R. Dlugi, K. Friedrich, G. Gross, D. Hinneburg, N. Mölders, U. Pahl, and M. Zelger, 2002: On modeling dry deposition of long-lived and chemically reactive species over heterogeneous terrain. J. Atmos. Chem., 42, 123-155.


Friedrich, K., M. Hagen, and P. Meischner, 2000: Vector wind field determination by bistatic multiple-Doppler radar. Phys. Chem. Earth (B), 25, 1205-1208.

Friedrich, K., and N. Mölders, 2000: On the influence of surface heterogeneity on latent heat fluxes and stratus properties. Atmos. Res., 54, 59-85.

Friedrich, K., N. Mölders, and G. Tetzlaff, 2000: On the influence of surface heterogeneity on the Bowen-ratio: A theoretical case study. Theor. Appl. Climatol., 65, 181-196.