WACR

wacr: W-Band (95 GHz) ARM Cloud Radar

The W-band Atmospheric Radiation Measurement (ARM) user facility Cloud Radar (WACR) systems are zenith-pointing Doppler radars that probe the extent and composition of clouds at 95.04 GHz.

The main purpose of this radar is to determine cloud boundaries (e.g., cloud bottoms and tops).

This radar reports estimates for the first three spectra moments for each range gate up to 15 km. The 0th moment is reflectivity, the 1st moment is radial velocity, and the 2nd moment is spectral width. Also available are the raw spectra files.

Unlike the millimeter wavelength cloud radar (MMCR), the WACR does not use pulse coding and operates in only copolarization and cross-polarization modes.

Measurements

Radar Doppler

Radar reflectivity

Locations

Fixed
AMF1
AMF2
AMF3

Related Publications

2018

Chakraborty S, K Schiro, R Fu, and J Neelin. 2018. "On the role of aerosols, humidity, and vertical wind shear in the transition of shallow-to-deep convection at the Green Ocean Amazon 2014/5 site." Atmospheric Chemistry and Physics, 18(15), 10.5194/acp-18-11135-2018.

Varble A, S Nesbitt, P Salio, E Zipser, S van den Heever, G McFarquhar, P DeMott, S Kreidenweis, M Jensen, P Kollias, D Romps, K Rasmussen, R Houze, Jr, R Leung, D Gochis, E Avila, CR Williams, and P Borque. 2018. Cloud, Aerosol, and Complex Terrain Interactions (CACTI) Science Plan. Ed. by Robert Stafford, ARM user facility. DOE/SC-ARM-18-027.

Varble A, S Nesbit, P Salio, E Zipser, S van den Heever, G McFarquhar, P Kollias, S Kreidenweis, P DeMott, M Jensen, R Houze, Jr., K Rasmussen, R Leung, D Romps, D Gochis, E Avila, and C Williams. 2018. Cloud, Aerosol, and Complex Terrain Interactions (CACTI) Science Plan. Ed. by Robert Stafford, DOE ARM Climate Research Facility. DOE/SC-ARM-17-004.

PZ, M Alvarado, C Chiu, S DeSzoeke, C Fairall, G Feingold, A Freedman, S Ghan, J Haywood, P Kollias, E Lewis, G McFarquhar, A McComiskey, D Mechem, T Onasch, J Redemann, D Romps, D Turner, H Wang, R Wood, S Yuter, and P Zhu. 2018. Layered Atlantic Smoke Interactions with Clouds (LASIC) Field Campaign Report. Ed. by Robert Stafford, ARM Climate Research Facility. DOE/SC-ARM-18-018.

Schiro K, F Ahmed, S Giangrande, and J Neelin. 2018. "GoAmazon2014/5 campaign points to deep-inflow approach to deep convection across scales." Proceedings of the National Academy of Sciences, , 10.1073/pnas.1719842115. ONLINE.

Zhuang Y, R Fu, and H Wang. 2018. "How do environmental conditions influence vertical buoyancy structure and shallow-to-deep convection transition across different climate regimes?" Journal of the Atmospheric Sciences, 75(6), 10.1175/JAS-D-17-0284.1.

Bharadwaj N, A Lindenmaier, B Isom, J Hardin, A Matthews, and K Johnson. 2018. FY 2018 ARM Radar Plan. Ed. by Robert Stafford, ARM Climate Research Facility. DOE/SC-ARM-18-014.

Kollias P, EE Clothiaux, K Lamer, N Bharadwaj, JM Comstock, and A Matthews. 2018. ARM Radar Engineering and Radar Science 2017 6th Workshop Report. Ed. by Robert Stafford, ARM Climate Research Facility. DOE/SC-ARM-TR-212.

Falconi M, A von Lerber, D Ori, F Marzano, and D Moisseev. 2018. "Snowfall retrieval at X, Ka and W band: consistency of backscattering and microphysical properties using BAECC ground-based measurements." Atmospheric Measurement Techniques, 11(5), 10.5194/amt-11-3059-2018.

2017

Matrosov S and A Heymsfield. 2017. "Empirical Relations between Size Parameters of Ice Hydrometeor Populations and Radar Reflectivity." Journal of Applied Meteorology and Climatology, 56(9), 10.1175/JAMC-D-17-0076.1.

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