000003520 001__ 3520
000003520 005__ 20180326114051.0
000003520 037__ $$aCTALK-2018-0051
000003520 100__ $$aVan Camp, M.
000003520 245__ $$aHow radar can be supported by gravimeters for estimating hail intensity
000003520 260__ $$c2018
000003520 269__ $$c2018-04-11
000003520 520__ $$aUnderground superconducting and spring gravimeters at the research stations of Rochefort (BE), Walferdange (LU) and Membach (BE) integrate soil water in a radius of about 200 m around the instrument. This allows measuring rainfall with a precision of a few nm/s²; 1 nm/s² corresponding to 2.4 mm of water. In this study, we compare the amount of precipitation as monitored by the underground gravimeters with the observation of the C-band weather radar in Wideumont, 33, 54 and 85 km away. The results are also compared with rain gauges co-located with the gravimeters. The focus is given to hail fall events with large precipitation amounts over short durations. The added value of gravimeter measurements is particularly high since the quality of radar and raingauge precipitation estimates in such cases is known to be relatively poor.
000003520 594__ $$aNO
000003520 6531_ $$aSuperconducting gravimeter
000003520 6531_ $$aradar
000003520 6531_ $$ahail
000003520 700__ $$aDelobbe, L.
000003520 700__ $$aWilfert, S.
000003520 700__ $$aWatlet, A.
000003520 700__ $$aFrancis, O.
000003520 700__ $$aDelforge, D.
000003520 773__ $$tEGU meeting, Vienna
000003520 8560_ $$fmichel.vancamp@observatoire.be
000003520 85642 $$ahttps://meetingorganizer.copernicus.org/EGU2018/EGU2018-5070.pdf
000003520 906__ $$aContributed
000003520 980__ $$aCTALKCONT