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


Helbig M, T Gerken, E Beamesderfer, D Baldocchi, T Banerjee, S Biraud, W Brown, N Brunsell, E Burakowski, S Burns, B Butterworth, W Chan, K Davis, A Desai, J Fuentes, D Hollinger, N Kljun, M Mauder, K Novick, J Perkins, D Rahn, C Rey-Sanchez, J Santanello, R Scott, B Seyednasrollah, P Stoy, R Sullivan, J de Arellano, S Wharton, C Yi, and A Richardson. 2021. "Integrating continuous atmospheric boundary layer and tower-based flux measurements to advance understanding of land-atmosphere interactions." Agricultural and Forest Meteorology, 307, 108509, 10.1016/j.agrformet.2021.108509.

Villefranque N and R Hogan. 2021. "Evidence for the 3D radiative effects of boundary‐layer clouds from observations of direct and diffuse surface solar fluxes." Geophysical Research Letters, , e2021GL093369, 10.1029/2021GL093369. ONLINE.

Russell LM, D Lubin, I Silber, E Eloranta, J Muelmenstaedt, S Burrows, A Aiken, D Wang, M Petters, M Miller, A Ackerman, A Fridlind, M Witte, M Lebsock, D Painemal, R Chang, J Liggio, and M Wheeler. 2021. Eastern Pacific Cloud Aerosol Precipitation Experiment (EPCAPE) Science Plan. Ed. by Robert Stafford, ARM user facility. DOE/SC-ARM-21-009.

Eissner J, D Mechem, M Jensen, and S Giangrande. 2021. "Factors Governing Cloud Growth and Entrainment Rates in Shallow Cumulus and Cumulus Congestus during GoAmazon2014/5." Journal of Geophysical Research: Atmospheres, 126(12), e2021JD034722, 10.1029/2021JD034722.
Research Highlight

Fernando HJ and I Gultepe. 2021. Ice Fog Field Experiment at Oliktok Point Campaign Report. Ed. by Robert Stafford, ARM user facility. DOE/SC-ARM-21-011.

Shupe M, D Chu, D Costa, C Cox, J Creamean, G de Boer, K Dethloff, R Engelmann, M Gallagher, E Hunke, W Maslowski, A McComiskey, J Osborn, O Persson, H Powers, K Pratt, D Randall, A Solomon, M Tjernstrom, D Turner, J Uin, T Uttal, J Verlinde, and D Wagner. 2021. Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) Field Campaign Report. Ed. by Robert Stafford, ARM user facility. DOE/SC-ARM-21-007.

Kirshbaum D and K Lamer. 2021. "Climatological sensitivities of shallow-cumulus bulk entrainment in continental and oceanic locations." Journal of the Atmospheric Sciences, , 10.1175/JAS-D-20-0377.1. ONLINE.

Turner D and U Löhnert. 2021. "Ground-based temperature and humidity profiling: combining active and passive remote sensors." Atmospheric Measurement Techniques, 14(4), 10.5194/amt-14-3033-2021.

Fridlind A, C Chiu, S Collis, J Comstock, S Giangrande, N Hickmon, M Jensen, M Kumjian, P Muradyan, R Newsom, A Sockol, M Sturm, and A Theisen. 2021. ARM Cloud and Precipitation Measurements and Science Group (CPMSG) Workshop Report. Ed. by Robert Stafford, ARM user facility. DOE/SC-ARM-21-005.

Zhao X, X Liu, V Phillips, and S Patade. 2021. "Impacts of secondary ice production on Arctic mixed-phase clouds based on ARM observations and CAM6 single-column model simulations." Atmospheric Chemistry and Physics, 21(7), 10.5194/acp-21-5685-2021.
Research Highlight

View All Related Publications