Reference characteristic flow rate: average inter-year flow of rivers in Auvergne-Rhône-Alpes

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Dataset information

Country of origin
Updated
Created
Available languages
French
Keywords
Hydrographie, Caractéristiques géographiques météorologiques
Quality scoring
80

Dataset description

In the framework of the agreement signed with Onema, Irstea carried out, after four years of research, a national mapping showing different reference flows. This is the five-yearly dry monthly flow rate (QMNA5, minimum occurring on average once every five years) and the average inter-annual flow rate (“module”, QA) Mapping of reference characteristic flow rates (QMNA5: monthly flow rate five-year dry, and module rated QA: average interannual flow) is the result of a spatial interpolation work. The proposed values have no regulatory scope unless they are validated on a case-by-case basis by the water police for specific cases. It is based on a national methodology using several models and reflects the state of knowledge at the end of 2012. However, it contains errors, the origins of which can be multiple: imperfection of methods, biased data, complexity of local hydrologies, human-related disturbances, inconsistency in the layout of the hydrographic network and of certain HYDRO sub-areas, etc. It is not intended to replace more precise locally constituted estimates, to which reference should be made as a matter of priority when they exist. The mapping tool was therefore designed to provide decision support. Extraction of data from the Auvergne-Rhône-Alpes region For more information: https://data.europa.eu/data/datasets/5a0aeb7788ee383ee1c3fd3e?locale=fr
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