This is part one of a two-module series on estimation of observed precipitation. Through use of rich illustrations, animations, and interactions, this module provides an overview of the science of precipitation estimation using various measuring platforms. First, we define quantitative precipitation estimation (QPE) and examine technologies for remote sensing of QPE, including radar and satellite and the strengths and limitations of each. That is followed by an examination of the use of rain gauges for precipitation estimation and important issues to consider with rain gauge measurement. Finally we provide an introduction to the strengths and limitations of using precipitation climatology for QPE including PRISM.
August 2016 and August 2015: HTML and media assets in this lesson have been updated for current browsers and mobile devices.
July 2014: Since the publication of this lesson there has been a significant amount of experience gained with operational precipitation estimation using dual-polarization weather radar. This experience is not reflected in the material originally published in 2009.
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