MODELISATION DE LA DYNAMIQUE POTENTIELLE D'UN BASSIN VERSANT ET MESURE DE SON EFFICACITE STRUCTURELLE
Identifieur interne : 000D23 ( Main/Exploration ); précédent : 000D22; suivant : 000D24MODELISATION DE LA DYNAMIQUE POTENTIELLE D'UN BASSIN VERSANT ET MESURE DE SON EFFICACITE STRUCTURELLE
Auteurs : Johnny Douvinet [France] ; Daniel Delahaye [France] ; Patrice Langlois [France]Source :
- Cybergeo : Revue européenne de géographie / European journal of geography [ 1278-3366 ] ; 2008-02-15.
Descripteurs français
English descriptors
- mix :
Abstract
Classical morphometric indexes have been the first quantitative methods created by geomorphologists to compare the morphometric characteristics of many catchments and to quantify their theoretical hydrologic behaviour. Even if many indices still remain quoted in numerous hydrologic books, a few authors have recently underlined the drawbacks of such methods. They are mainly static and not synthetics, and so, they are not sufficient to predict the hydrological response. So we choose creating relevant indexes basing our approach on new distributed simulation tools as cellular automata (RuiCells) to calculate synthetic indexes based on numerical experiences. Simulations on 422 varied catchments lead a few interesting results. Some efficient spatial configurations are detected at a local scale while at the global scale such behaviour was not observed. An index of spatial efficiency is proposed on each cell in order to quantify the efficiency of the network structure in every point within the catchment. The greater values identify the points with the stronger theoretical response.
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...)
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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><series><title level="j">Cybergeo : Revue européenne de géographie / European journal of geography</title><idno type="ISSN">1278-3366</idno><imprint><date type="datePub">2008-02-15</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="mix" xml:lang="en"><term>catchment</term><term>cellular automata</term><term>morphometry</term></keywords><keywords scheme="mix" xml:lang="fr"><term>automate cellulaire</term><term>bassin versant</term><term>morphométrie</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Classical morphometric indexes have been the first quantitative methods created by geomorphologists to compare the morphometric characteristics of many catchments and to quantify their theoretical hydrologic behaviour. Even if many indices still remain quoted in numerous hydrologic books, a few authors have recently underlined the drawbacks of such methods. They are mainly static and not synthetics, and so, they are not sufficient to predict the hydrological response. So we choose creating relevant indexes basing our approach on new distributed simulation tools as cellular automata (RuiCells) to calculate synthetic indexes based on numerical experiences. Simulations on 422 varied catchments lead a few interesting results. Some efficient spatial configurations are detected at a local scale while at the global scale such behaviour was not observed. An index of spatial efficiency is proposed on each cell in order to quantify the efficiency of the network structure in every point within the catchment. The greater values identify the points with the stronger theoretical response.</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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