kazr: Ka ARM Zenith Radar

The Ka-band ARM Zenith Radar (KAZR) remotely probes the extent and composition of clouds at millimeter wavelengths. The KAZR is a zenith-pointing Doppler radar that operates at a frequency of approximately 35 GHz. The main purpose of this radar is to determine the first three Doppler moments (reflectivity, vertical velocity, and spectral width) at a range resolution of approximately 30 meters from near-ground to nearly 20 km in altitude.

The KAZR replaces the millimeter-wavelength cloud radar (MMCR) and uses a new digital receiver that provides higher spatial and temporal resolution than the MMCR. In addition, spectral artifacts in the data are significantly reduced in the KAZR, allowing researchers to study cloud dynamics much more closely than with the MMCR.



  • Fixed
  • AMF1
  • AMF2
  • AMF3


Matsui T, B Dolan, T Iguchi, S Rutledge, W Tao, and S Lang. 2020. "Polarimetric Radar Characteristics of Simulated and Observed Intense Convective Cores for a Midlatitude Continental and Tropical Maritime Environment." Journal of Hydrometeorology, , 10.1175/JHM-D-19-0185.1. ONLINE.

Gustafson W, A Vogelmann, Z Li, X Cheng, K Dumas, S Endo, K Johnson, B Krishna, T Toto, and H Xiao. 2020. "The Large-Eddy Simulation (LES) Atmospheric Radiation Measurement (ARM) Symbiotic Simulation and Observation (LASSO) Activity for Continental Shallow Convection." Bulletin of the American Meteorological Society, , 10.1175/BAMS-D-19-0065.1. ONLINE.

Wainwright C, D Reynolds, and A Reynolds. 2020. "Linking Small-Scale Flight Manoeuvers and Density Profiles to the Vertical Movement of Insects in the Nocturnal Stable Boundary Layer." Scientific Reports, 10(1), 1019, 10.1038/s41598-020-57779-0.


Zhou X and C Bretherton. 2019. "The Correlation of Mesoscale Humidity Anomalies with Mesoscale Organization of Marine Stratocumulus from Observations over the ARM Eastern North Atlantic Site." Journal of Geophysical Research: Atmospheres, 124(24), 10.1029/2019JD031056.

Dexheimer D, M Airey, E Roesler, C Longbottom, K Nicoll, S Kneifel, F Mei, R Harrison, G Marlton, and P Williams. 2019. "Evaluation of ARM tethered-balloon system instrumentation for supercooled liquid water and distributed temperature sensing in mixed-phase Arctic clouds." Atmospheric Measurement Techniques, 12(12), 10.5194/amt-12-6845-2019.

Kollias P, N Bharadwaj, E Clothiaux, K Lamer, M Oue, J Hardin, B Isom, I Lindenmaier, A Matthews, E Luke, S Giangrande, K Johnson, S Collis, J Comstock, and J Mather. 2019. "The ARM Radar Network: At the Leading-edge of Cloud and Precipitation Observations." Bulletin of the American Meteorological Society, , 10.1175/BAMS-D-18-0288.1. ONLINE.

Schmidt J, P Flatau, P Harasti, R Yates, D Delene, N Gapp, W Kohri, J Vetter, J Nachamkin, M Parent, J Hoover, M Anderson, S Green, and J Bennett. 2019. "Radar Detection of Individual Raindrops." Bulletin of the American Meteorological Society, 100(12), 10.1175/BAMS-D-18-0130.1.

Yang F, R McGraw, E Luke, D Zhang, P Kollias, and A Vogelmann. 2019. "A new approach to estimate supersaturation fluctuations in stratocumulus cloud using ground-based remote-sensing measurements." Atmospheric Measurement Techniques, 12(11), 10.5194/amt-12-5817-2019.
Research Highlight

Riihimaki LD, T Shippert, and DD Turner. 2019. Atmospheric Emitted Radiance Interferometer Optimal Estimation (AERIoe) Value-Added Product Report . Ed. by Robert Stafford, ARM user facility. DOE/SC-ARM-TR-234.

Varble A, S Nesbitt, P Salio, E Avila, P Borque, P DeMott, G McFarquhar, S van den Heever, E Zipser, D Gochis, R Houze, M Jensen, P Kollias, S Kreidenweis, R Leung, K Rasmussen, D Romps, and C Williams. 2019. Cloud, Aerosol, and Complex Terrain Interactions (CACTI) Field Campaign Report. Ed. by Robert Stafford, ARM user facility. DOE/SC-ARM-19-028.

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