Articles | Volume 23, issue 1
https://doi.org/10.5194/hess-23-93-2019
https://doi.org/10.5194/hess-23-93-2019
Research article
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08 Jan 2019
Research article | Highlight paper |  | 08 Jan 2019

Exploring the use of underground gravity monitoring to evaluate radar estimates of heavy rainfall

Laurent Delobbe, Arnaud Watlet, Svenja Wilfert, and Michel Van Camp

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Short summary
In this study, we explore the use of an underground superconducting gravimeter as a new source of in situ observations for the evaluation of radar-based precipitation estimates. The comparison of radar and gravity time series over 15 years shows that short-duration intense rainfall events cause a rapid decrease in the measured gravity. Rainfall amounts can be derived from this decrease. The gravimeter allows capture of rainfall at a much larger spatial scale than a traditional rain gauge.