Évolution de la dynamique fluviale de la moyenne Garonne toulousaine : apport d'une approche multi-sources cartes historiques, stratigraphie et géophysique sur le site Grenade-Ondes

David, Mélodie; Carozza, Jean‐Michel; Valette, Philippe; Llubes, Muriel; Py, Vanessa; Groparu, Tiberiu

doi:10.4000/geomorphologie.10834

Cited by 7 publications

(1 citation statement)

References 14 publications

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“…Les sites, caractérisés par la présence de seuils rocheux, s'inscrivent dans la plaine holocène (David et al, 2016) large de quelques kilomètres où le chenal s'est incisé dans un substratum sédimentaire molassique de type fluvio-lacustre (Mouline, 1989 ;David et al, 2015). Ce dernier est issu de l'érosion de la chaîne des Pyrénées.…”

Section: Contexte Des Sites D'étudeunclassified

Les formes d’érosion en lit mineur rocheux : typologie, distribution spatiale et implications sur la dynamique du lit. Exemple à partir des seuils rocheux molassiques de la moyenne Garonne toulousaine (Sud-Ouest, France)

Jantzi¹,

Carozza²,

Probst³

et al. 2020

geomorphologie

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Section: Contexte Des Sites D'étudeunclassified

Les formes d’érosion en lit mineur rocheux : typologie, distribution spatiale et implications sur la dynamique du lit. Exemple à partir des seuils rocheux molassiques de la moyenne Garonne toulousaine (Sud-Ouest, France)

Jantzi¹,

Carozza²,

Probst³

et al. 2020

geomorphologie

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Evolutionary trajectory of channel planforms in the middle Garonne River (Toulouse, SW France) over a 130-year period: Contribution of mixed multiple factor analysis (MFAmix)

et al. 2016

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International audienceThe purpose of this study is to propose a methodological essay for defining evolutionary trajectories of channel planforms and to examine the channel change in the middle Garonne River (southwest France) over a 130-year period. The study focuses on a reach of ~90 km situated downstream from the city of Toulouse. A set of four historical maps (1868, 1940s, 1970s, and 2000s) is used to build a geomorphometric diachronic database. Data processing through mixed multiple factor analysis (MFAmix) and hierarchical cluster analysis (HCA) allows distinction between four homogeneous zones within the study reach, depending on their evolutionary trajectories. Channel behavior in the upstream and median zones evolved as of the beginning of the study period (narrowing of the fluvial area, colonization by vegetation, and removal of alluvial bars), likely owing to punctual anthropogenic actions. The downstream zone is characterized by stabilization of the channel and alluvial bar removal over the second half of the twentieth century, coinciding with the campaign undertaken by French local authorities between 1960 and 1984 to protect river banks. The role of ACCEPTED MANUSCRIPT climate transition between the Little Ice Age (LIA) and the onset of the Global Warming period (GW) is also discussed. Results generally are consistent with the chronology established for most European rivers

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Geomorphological evolution of Mediterranean enclosed depressions in the Late glacial and Holocene: The example of Canohès (Roussillon, SE France)

et al. 2016

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Évolution de la dynamique fluviale de la moyenne Garonne toulousaine : apport d'une approche multi-sources cartes historiques, stratigraphie et géophysique sur le site Grenade-Ondes

Cited by 7 publications

References 14 publications

Les formes d’érosion en lit mineur rocheux : typologie, distribution spatiale et implications sur la dynamique du lit. Exemple à partir des seuils rocheux molassiques de la moyenne Garonne toulousaine (Sud-Ouest, France)

Les formes d’érosion en lit mineur rocheux : typologie, distribution spatiale et implications sur la dynamique du lit. Exemple à partir des seuils rocheux molassiques de la moyenne Garonne toulousaine (Sud-Ouest, France)

Evolutionary trajectory of channel planforms in the middle Garonne River (Toulouse, SW France) over a 130-year period: Contribution of mixed multiple factor analysis (MFAmix)

Geomorphological evolution of Mediterranean enclosed depressions in the Late glacial and Holocene: The example of Canohès (Roussillon, SE France)

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