The combined use of weather radar and geographic information system techniques for flood forecasting

E. Baltas (1)

1 AUTH

A distributed rainfall-runoff model capable for real time flood forecasting utilizing highly spatial and time resolution data was developed. The study region is located under the WSR-74 S-band 100 km radar umbrella and is equipped with a number of rain gauge recording stations, a permanent installation for flow measurement and a stage recorder. The entire basin was digitized to 2×2 km² grid squares by implying GIS techniques. A series of rainfall events recorded producing floods were analyzed and processed. The linear channel parameter assigned to each grid-square is based on its location measured by the centroid of the grid square along the channel network. The estimation of the hill-slope and the stream velocity are calculated based on the Geographic Information System (GIS) procedures.

Domaines: Sciences de la Terre

E. Baltas. The combined use of weather radar and geographic information system techniques for flood forecasting. Advances in Geosciences, 2007, 10, pp.117-123. ⟨hal-00296987⟩