Manual on Sea-level Measurements and Interpretation, Volume V: Radar Gauges.
Résumé : Radar water level sensors provide several advantages over the older water level instruments. They require less effort to install than float-well, bubbler, or pressure sensor systems. Radar sensors require less maintenance than traditional water-level sensors because they are not in contact with the water. Because radar is a “non-contact” measurement method, it is not susceptible to being obstructed by sediment or debris and does not require that sediment be flushed from a stilling well. Radar water-level sensors may not work at all sites. However, testing and field experience has proven that radar water level sensors can be used at many sites to provide water-level measurements that have accuracy similar to or better than that of the older water-level instruments.
UNESCO/IOC, JCOMM - OC Manuals and Guides No.14, vol. V; JCOMM Technical Report No. 89
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