For regional estimations of floods, both rough models and station-data transfers are used. They all need local rain estimations. On relief basins, and even with only smooth hills, the rain statistical distributions present high micro-climatic variations, resulting from ''air-relief'' interactions. Generally, the rain-recorder network cannot be dense enough to allow a sufficient accurate mapping. Rain-radar seems to be a promising tool, but not yet operating. Using a set of favourable conditions (three parallel chains, increasing altitude, main rainy wind parallel, radar sustain...) , a permanent laboratory was created East of Lyon, in an ''ERB'' (European Reference Basin) spirit. Its economic feasibility was obtained by one-dimension (transect) structure, where a very high and sufficient density is possible, and surrounded by an ordinary regional rain-gauge network of medium density level. The atmosphere characteristics are obtained with the ordinary radio-sondages, eventually completed with interpolated data from meteorological forecasting models. The minimal time-path is one minute. The analysis of the first observations show, even for short time-paths, a very high level of a real structure, thus a probable possibility of a conceptual modelizing.
Free access
Intensités des pluies en zones à relief : Premiers résultats sur un transect alpin de forte densité
Rainfall intensity in relief areas: first results on a high density one-dimensional network
Reprints and Corporate Permissions
Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?
To request a reprint or corporate permissions for this article, please click on the relevant link below:
Academic Permissions
Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?
Obtain permissions instantly via Rightslink by clicking on the button below:
If you are unable to obtain permissions via Rightslink, please complete and submit this Permissions form. For more information, please visit our Permissions help page.
Related research
People also read lists articles that other readers of this article have read.
Recommended articles lists articles that we recommend and is powered by our AI driven recommendation engine.
Cited by lists all citing articles based on Crossref citations.
Articles with the Crossref icon will open in a new tab.