disdrometer: Impact Disdrometer

The impact disdrometer collects observations of the drop size spectra of rainfall. The sensor transforms the mechanical impact of each drop into an electrical pulse. With calibration, the size of each pulse is interpreted as the diameter of the observed drop.

ARM also deploys laser disdrometers (LDIS) and video disdrometers (VDIS). Data from all these instruments helps improve the quantitative description of precipitation processes in climate models.



  • Fixed
  • AMF1
  • AMF2
  • AMF3

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Kumjian M, C Martinkus, O Prat, S Collis, M van Lier-Walqui, and H Morrison. 2018. "A Moment-based Polarimetric Radar Forward Operator for Rain Microphysics." Journal of Applied Meteorology and Climatology, , 10.1175/JAMC-D-18-0121.1. ONLINE.

Louf V, A Protat, R Warren, S Collis, D Wolff, S Raunyiar, C Jakob, and W Petersen. 2018. "An integrated approach to weather radar calibration and monitoring using ground clutter and satellite comparisons." Journal of Atmospheric and Oceanic Technology, , 10.1175/JTECH-D-18-0007.1. ONLINE.
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Wang J, X Dong, and B Xi. 2018. "Investigation of Liquid Cloud Microphysical Properties of Deep Convective Systems: 2. Parameterization of Raindrop Size Distribution and its Application for Convective Rain Estimation." Journal of Geophysical Research: Atmospheres, , 10.1029/2018JD028727. ONLINE.


Giangrande SE, T Toto, A Bansemer, MR Kumjian, S Mishra, and A Ryzkhov. 2016. "Insights into riming and aggregation processes as revealed by aircraft, radar, and disdrometer observations for a 27 April 2011 widespread precipitation event." Journal of Geophysical Research: Atmospheres, 121(10), 10.1002/2015jd024537.
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Bartholomew MJ. 2016. Impact Disdrometer Instrument Handbook. Ed. by Robert Stafford, DOE ARM Climate Research Facility. DOE/SC-ARM-TR-111.


Deng M, P Kollias, Z Feng, C Zhang, CN Long, H Kalesse, A Chandra, VV Kumar, and A Protat. 2014. "Stratiform and Convective Precipitation Observed by Multiple Radars during the DYNAMO/AMIE Experiment." Journal of Applied Meteorology and Climatology, 53(11), 10.1175/jamc-d-13-0311.1.

Giangrande SE, S Collis, A Theisen, and A Tokay. 2014. "Precipitation Estimation from the ARM Distributed Radar Network during the MC3E Campaign." Journal of Applied Meteorology and Climatology, 53(9), 10.1175/jamc-d-13-0321.1.
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Yano J and TP Lane. 2014. "Convectively generated gravity waves simulated by NAM-SCA." Journal of Geophysical Research: Atmospheres, 119(15), 10.1002/2013jd021419.

Giangrande SE, M Bartholomew, M Pope, S Collis, and MP Jensen. 2014. "A Summary of Precipitation Characteristics from the 2006-2011 Northern Australian Wet Seasons as Revealed by ARM Disdrometer Research Facilities (Darwin, Australia)." Journal of Applied Meteorology and Climatology, 53, 10.1175/jamc-d-13-0222.1.
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Giangrande SE, S Collis, J Straka, A Protat, C Williams, and S Krueger. 2013. "A Summary of Convective-Core Vertical Velocity Properties Using ARM UHF Wind Profilers in Oklahoma." Journal of Applied Meteorology and Climatology, 52(10), 10.1175/jamc-d-12-0185.1.
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