Contribution à la définition des caractéristiques d'un radar hydrologique urbain. Prévision de la pluie à très courte échéance

Abstract : Rainfall rate is an essential information in hydrology, in particular for urban or mountainous catchments. On these basins, reliable rainfall estimates as well as very short term rainfall forecasts are thus needed. Weather radar constitutes a solution to satisfy these needs. Unfortunately existing radars are not fully adapted to all the hydrological applications in terms of flexibility in use and space and temporal resolution. The development of X-band radars devoted to the specific needs of hydrology is considered. Their application conditions are to be defined. These studies addresse the estimate of voluminal and Doppler radar data for very short-term rainfall forecasting. The first part of the manuscript deals with the VIL radar measurement. In addition, it presents a method for the retrieval of horizontal wind field from Doppler data. The second part of the manuscript deals with the formulation and the estimate of a very short-term rainfall forecasting method based on VIL. This method is initially tested from simulated radar data in order to highlight the interest of the voluminal data independently of measurement errors. A case study is then undertaken on actual rain events recorded during the intensive observation period of MAP (Mesoscale Alpine Programme).
Document type :
Theses
Complete list of metadatas

Cited literature [122 references]  Display  Hide  Download

https://tel.archives-ouvertes.fr/tel-00003248
Contributor : Brice Boudevillain <>
Submitted on : Sunday, October 5, 2003 - 8:01:25 PM
Last modification on : Friday, April 5, 2019 - 8:07:52 PM
Long-term archiving on : Friday, April 2, 2010 - 7:01:30 PM

Identifiers

  • HAL Id : tel-00003248, version 1

Citation

Brice Boudevillain. Contribution à la définition des caractéristiques d'un radar hydrologique urbain. Prévision de la pluie à très courte échéance. Physique [physics]. Université Blaise Pascal - Clermont-Ferrand II, 2003. Français. ⟨tel-00003248⟩

Share

Metrics

Record views

410

Files downloads

966