rwp: Radar Wind Profiler

The radar wind profiler/radio acoustic sounding system (RWP/RASS), available in 915-MHz (for U.S. deployments) and 1290-MHz (for foreign deployments), measures wind profiles and backscattered signal strength between (nominally) 0.1 km and 5 km and virtual temperature profiles between 0.1 km and 2.5 km. However, ARM no longer operates the RASS portion.

The RWP transmits electromagnetic energy into the atmosphere in as many as five directions (four tilted in opposing vertical planes and on vertical) and measures the strength and frequency of backscattered energy. Calculation of the Doppler shift of the returned signal allows calculation of the atmospheric wind profile.



  • Fixed
  • AMF1
  • AMF2
  • AMF3

Related Publications


Neiman P, N Gaggini, C Fairall, J Aikins, J Spackman, L Leung, J Fan, J Hardin, N Nalli, and A White. 2017. "An Analysis of Coordinated Observations from NOAA's Ronald Brown Ship and G-IV Aircraft in a Landfalling Atmospheric River over the North Pacific during CalWater-2015." Monthly Weather Review, , 10.1175/MWR-D-17-0055.1. ONLINE.

McGibbon J and CS Bretherton. 2017. "Skill of ship-following large-eddy simulations in reproducing MAGIC observations across the northeast Pacific stratocumulus to cumulus transition region." Journal of Advances in Modeling Earth Systems, 9(2), 10.1002/2017MS000924.


Rai R, L Berg, B Kosović, J Mirocha, M Pekour, and W Shaw. 2016. "Comparison of Measured and Numerically Simulated Turbulence Statistics in a Convective Boundary Layer Over Complex Terrain." Boundary-Layer Meteorology, 163(1), 10.1007/s10546-016-0217-y.

Giangrande SE, T Toto, MP Jensen, M Bartholomew, Z Feng, A Protat, C Williams, C Schumacher, and L Machado. 2016. "Convective cloud vertical velocity and mass-flux characteristics from radar wind profiler observations during GoAmazon2014/5." Journal of Geophysical Research: Atmospheres, 121(21), 10.1002/2016jd025303. ONLINE.

Yang B, Y Qian, L Berg, P Ma, S Wharton, V Bulaevskaya, H Yan, Z Hou, and W Shaw. 2016. "Sensitivity of turbine-height wind speeds to parameters in planetary boundary-layer and surface-layer schemes in the Weather Research and Forecasting Model." Boundary-Layer Meteorology, 162(1), 10.1007/s10546-016-0185-2.

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. ONLINE.

Jensen MP, SE Giangrande, and MJ Bartholomew. 2016. Radar Wind Profiler for Cloud Forecasting at Brookhaven National Laboratory (BNL) Field Campaign Report. Ed. by Robert Stafford, DOE ARM Climate Research Facility. DOE/SC-ARM-16-025.

Jensen M, MJ Bartholomew, and S Giangrande. 2016. 915-MHz Wind Profiler for Cloud Forecasting at Brookhaven National Laboratory. DOE ARM Climate Research Facility. DOE/SC-ARM-15-024.


Fang M, BA Albrecht, VP Ghate, and P Kollias. 2013. "Turbulence in continental stratocumulus, Part II: Eddy dissipation rates and large-eddy coherent structures." Boundary-Layer Meteorology, 150(3), 10.1007/s10546-013-9872-4.

Fang M, BA Albrecht, VP Ghate, and P Kollias. 2013. "Turbulence in continental stratocumulus, Part I: External forcings and turbulence structures." Boundary-Layer Meteorology, 149(454), 10.1007/s10546-013-9873-3.

View All Related Publications