Reviewed Publications


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.,??, ??-??.

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.,??, ??-??.

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.