New Data Available for Precipitation Value-Added Product

Published: 29 August 2013

qpe — A spatial plot of rainfall intensity (mm/h) centered on the Manus (TWP-C1) central facility as retrieved from the C-band scanning ARM precipitation radar using a rainfall-reflectivity relationship.

The Quantitative Precipitation Experiment (QPE) value-added product (VAP) contains precipitation rates gathered by the C-band scanning ARM precipitation radar (C-SAPR). Data are now available for September 2011, covering the ARM Madden-Julian Oscillation (MJO) Investigation Experiment (AMIE).

Due to some issues with the radar system a polarimetric-based estimate was not possible. Instead, a simple reflectivity rainfall relationship was used. Data are mapped onto a Cartesian grid (1 kilometer by 1 kilometer) using an inverse distance-weighted algorithm covering a domain of a 120-kilometer radius from the radar location.

More information on QPE is available at the VAP web page and in the README file that accompanies the data files in the Data Archive’s evaluation area.

To access these data, log in to the Data Archive. (Go here to request an account.)

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The ARM Climate Research Facility is a DOE Office of Science user facility. The ARM Facility is operated by nine DOE national laboratories, including .