Atmospheric Radiation Measurement Climate Research Facility US Department of Energy

mwr > Microwave RadiometerInstrument Type(s) > Baseline • External • Guest

The microwave radiometer (MWR) provides time-series measurements of column-integrated amounts of water vapor and liquid water. The instrument itself is a sensitive microwave receiver that detects the microwave emissions of the vapor and liquid water molecules in the atmosphere at two frequencies: 23.8 and 31.4 GHz.

Integrated water vapor and liquid water path are derived from radiance measurements with a statistical retrieval algorithm that uses monthly derived and location-dependent linear regression coefficients.


  • Fixed
  • AMF1
  • AMF2
  • AMF3


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Borque P, A Varble, and J Hardin. 2022. "Peak Rain Rate Sensitivity to Observed Cloud Condensation Nuclei and Turbulence in Continental Warm Shallow Clouds During CACTI." Journal of Geophysical Research: Atmospheres, , e2022JD036864, 10.1029/2022JD036864. ACCEPTED.

Emmenegger T, Y Kuo, S Xie, C Zhang, C Tao, and J Neelin. 2022. "Evaluating Tropical Precipitation Relations in CMIP6 Models with ARM data." Journal of Climate, , 10.1175/JCLI-D-21-0386.1.

Wang M, K Balmes, T Thorsen, D Willick, and Q FU. 2022. "An Investigation of the Ice Cloud Detection Sensitivity of Cloud Radars Using the Raman Lidar at the ARM SGP Site." Remote Sensing, 14(14), 3466, 10.3390/rs14143466.

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