Atmospheric Radiation Measurement Climate Research Facility US Department of Energy


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saprqvp > Scanning ARM Precipitation Radar (SAPR) Quasi-Vertical Profile VAP Type(s) > Evaluation

The Quasi-Vertical Profiles (QVP) VAP averages quality-controlled radar measurements along the axis of the azimuth. QVP allows quick insight into domain mean hydrometeor (e.g., snow, rain, melting layer) location and polarimetric data.

QVP data are derived from Corrected Moments in Antenna Coordinates Version 2 (CMAC2) using code within the Python ARM Radar Toolkit (Py-ART), an open-source architecture for interacting with radar data in the Python programming language.



The purpose of this data set is to create vertical profiles to observe the microphysical characteristics of clouds.


  • Fixed
  • AMF1
  • AMF2
  • AMF3

Data Details

Developed By Scott Collis | Jason Hemedinger
Contact Scott Collis
Resource(s) Data Directory
Data format netcdf
Site SGP
Content time range 1 October 2017 - 26 February 2019
Attribute accuracy No formal attribute accuracy tests were conducted
Positional accuracy No formal positional accuracy tests were conducted
Data Consistency and Completeness Data set is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details.
Access Restriction No access constraints are associated with this data.
Use Restriction No use constraints are associated with this data.
File naming convention
Directory Organization These files are daily files.
Citations Ryzhkov, A., P. Zhang, H. Reeves, M. Kumjian, T. Tschallener, S. Tromel, C. Simmer, 2015: Quasi-vertical profiles - a new way to look at polarimetric radar data. Submitted to J. Atmos. Oceanic Technol.


Dorsey KS, R Jundt, CB Ireland, MR Wasem, RA Stafford, and A Hunzinger. 2021. 2020 Atmospheric Radiation Measurement (ARM) Annual Report. Ed. by Kathryn Dorsey, U.S. Department of Energy. DOE/SC-ARM-20-020.

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