Atmospheric Radiation Measurement Climate Research Facility US Department of Energy

sacradvvad > SACR Advance Velocity Azimuth DisplayVAP Type(s) > Baseline

The Scanning ARM Cloud Radar-Advanced-Velocity Azimuth Display (SACR-ADV-VAD) value-added product (VAP) provides profiles of horizontal wind estimates at cloud level, using radial mean Doppler velocity observations from the Hemispherical Sky Range Height Indicator (HS-RHI) scan strategy of the Ka-Band Scanning ARM Cloud Radar (KASACR).

The VAD technique was historically used to retrieve wind field properties using weather radars. SACR-ADV-VAD employs the technique using three horizon-to-horizon HS-RHI scans, typically repeated one to two times per hour, and spaced by 30 degrees in azimuth. The resultant product has a 30- to 60-minute time resolution and a 50-meter height resolution. It is intended to complement infrequent soundings, routinely only 2 to 4 per day, depending upon the site.

Primary Derived Measurements


  • Fixed
  • AMF1
  • AMF2
  • AMF3


Goss HB, KS Dorsey, CB Ireland, MR Wasem, RA Stafford, and R Jundt. 2020. 2019 Atmospheric Radiation Measurement (ARM) Annual Report. Ed. by Kathryn Dorsey, ARM user facility. DOE/SC-ARM-19-032. 10.2172/1604869.


Clothiaux EE, K Johnson, T Toto, P Kollias, K Lamer, SE Giangrande, and M Oue. 2018. Scanning ARM Cloud Radar—Advanced—Velocity Azimuth Display Value-Added Product. Ed. by Robert Stafford, ARM Climate Research Facility. DOE/SC-ARM-TR-209. 10.2172/1418465.

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Scott Giangrande
Brookhaven National Laboratory

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