Les apports de l'IAD à la caractérisation morphométrique des bassins versants sensibles aux crues rapides hyper-concentrées
(Bassin Parisien, Nord de la France)
Identifieur interne : 001037 ( Main/Exploration ); précédent : 001036; suivant : 001038
Les apports de l'IAD à la caractérisation morphométrique des bassins versants sensibles aux crues rapides hyper-concentrées
(Bassin Parisien, Nord de la France)
Auteurs : Johnny Douvinet [France] ; Daniel Delahaye [France] ; Patrice Langlois [France]Source :
Descripteurs français
English descriptors
Abstract
Classical morphometric methods have been the first quantitative methods created by geomorphologists to measure the catchment morphology. Many hydrological studies still use these methods. Though the catchment shape, the slopes and the drainage network organisation can be characterized by many quantitative indicators, several authors show lacks and limits of such tools. For example, the indices can not translate the hydrological response of a catchment. Nonetheless, in order to better analyze the incidence of the catchment structure on its hydrological dynamic, it appears that recent DAI tools are relevant. The assumed approach permits implementing both three morphological variables (shape, slope and drainage pattern) within a generalized cellular automaton model. It is possible moreover to simulate surface flows discharge using uniquely the 3D catchment structure. Results highlight the efficiency of some morphological systems and their influence on the hyper-concentrated stream flows observed recently on several catchments.
Url:
Affiliations:
- France
- Basse-Normandie, Haute-Normandie, Pays de la Loire, Région Bretagne, Région Normandie
- Angers, Brest, Caen, Le Havre, Nantes, Rennes, Rouen
- Université Rennes 2 Haute Bretagne, Université d'Angers, Université de Bretagne Occidentale, Université de Caen Basse-Normandie, Université de Nantes, Université de Rouen, Université du Havre, Université européenne de Bretagne
Links toward previous steps (curation, corpus...)
- to stream Hal, to step Corpus: 000632
- to stream Hal, to step Curation: 000632
- to stream Hal, to step Checkpoint: 000688
- to stream Main, to step Merge: 001056
- to stream Main, to step Curation: 001037
Le document en format XML
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76821 Mont-Saint-Aignan</addrLine><country key="FR"></country></address><ref type="url">http://www.univ-rouen.fr/</ref></desc></org></tutelle><tutelle name="FRE2795" active="#struct-441569" type="direct"><org type="institution" xml:id="struct-441569" status="VALID"><idno type="ISNI">0000000122597504</idno><idno type="IdRef">02636817X</idno><orgName>Centre National de la Recherche Scientifique</orgName><orgName type="acronym">CNRS</orgName><date type="start">1939-10-19</date><desc><address><country key="FR"></country></address><ref type="url">http://www.cnrs.fr/</ref></desc></org></tutelle></tutelles></hal:affiliation><country>France</country><placeName><settlement type="city">Caen</settlement><region type="region" nuts="2">Basse-Normandie</region></placeName><orgName type="university">Université de Caen Basse-Normandie</orgName><placeName><settlement type="city">Le Havre</settlement><region type="region" nuts="2">Région Normandie</region><region type="old region" nuts="2">Haute-Normandie</region></placeName><orgName type="university">Université du Havre</orgName><placeName><settlement type="city">Rouen</settlement><region type="region" nuts="2">Région Normandie</region><region type="old region" nuts="2">Haute-Normandie</region></placeName><orgName type="university">Université de Rouen</orgName></affiliation></author></analytic></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="mix" xml:lang="en"><term>catchment morphology</term><term>cellular automata</term><term>flash floods</term><term>flood risk</term></keywords><keywords scheme="mix" xml:lang="fr"><term>automate cellulaire</term><term>crues rapides</term><term>morphologie des bassins versants</term><term>risque hydrologique</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Classical morphometric methods have been the first quantitative methods created by geomorphologists to measure the catchment morphology. Many hydrological studies still use these methods. Though the catchment shape, the slopes and the drainage network organisation can be characterized by many quantitative indicators, several authors show lacks and limits of such tools. For example, the indices can not translate the hydrological response of a catchment. Nonetheless, in order to better analyze the incidence of the catchment structure on its hydrological dynamic, it appears that recent DAI tools are relevant. The assumed approach permits implementing both three morphological variables (shape, slope and drainage pattern) within a generalized cellular automaton model. It is possible moreover to simulate surface flows discharge using uniquely the 3D catchment structure. Results highlight the efficiency of some morphological systems and their influence on the hyper-concentrated stream flows observed recently on several catchments.</div></front></TEI><affiliations><list><country><li>France</li></country><region><li>Basse-Normandie</li><li>Haute-Normandie</li><li>Pays de la Loire</li><li>Région Bretagne</li><li>Région Normandie</li></region><settlement><li>Angers</li><li>Brest</li><li>Caen</li><li>Le Havre</li><li>Nantes</li><li>Rennes</li><li>Rouen</li></settlement><orgName><li>Université Rennes 2 Haute Bretagne</li><li>Université d'Angers</li><li>Université de Bretagne Occidentale</li><li>Université de Caen Basse-Normandie</li><li>Université de Nantes</li><li>Université de Rouen</li><li>Université du Havre</li><li>Université européenne de Bretagne</li></orgName></list><tree><country name="France"><region name="Pays de la Loire"><name sortKey="Douvinet, Johnny" sort="Douvinet, Johnny" uniqKey="Douvinet J" first="Johnny" last="Douvinet">Johnny Douvinet</name></region><name sortKey="Delahaye, Daniel" sort="Delahaye, Daniel" uniqKey="Delahaye D" first="Daniel" last="Delahaye">Daniel Delahaye</name><name sortKey="Langlois, Patrice" sort="Langlois, Patrice" uniqKey="Langlois P" first="Patrice" last="Langlois">Patrice Langlois</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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|texte= Les apports de l'IAD à la caractérisation morphométrique des bassins versants sensibles aux crues rapides hyper-concentrées
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