Horizon / Plein textes La base de ressources documentaires de l'IRD

IRD

Publications des scientifiques de l'IRD

Ronchail J., Espinoza J. C., Drapeau G., Sabot M., Cochonneau Gérard, Schor T. (2018). The flood recession period in Western Amazonia and its variability during the 1985-2015 period. Journal of Hydrology : Regional Studies, 15, 16-30. ISSN 2214-5818

Fichier PDF disponible http://horizon.documentation.ird.fr/exl-doc/pleins_textes/divers18-05/010072834.pdf

Lien direct chez l'éditeur doi:10.1016/j.ejrh.2017.11.008

Titre
The flood recession period in Western Amazonia and its variability during the 1985-2015 period
Année de publication2018
Type de documentArticle référencé dans le Web of Science WOS:000431062600002
AuteursRonchail J., Espinoza J. C., Drapeau G., Sabot M., Cochonneau Gérard, Schor T.
SourceJournal of Hydrology : Regional Studies, 2018, 15, p. 16-30. ISSN 2214-5818
RésuméStudy region: The upper Amazon River, where the water level measured at the Tamshiyacu station (Peru) shows seasonal variability of seven meters. Study focus: Key parameters for the flood recession period (beginning, end and duration of the low-water period, velocity of water falling and rising, and inversions in the direction of stage change known as "repiquete" events) are analyzed for the period 1985-2015, along with their relationship to rainfall integrated in the upper Amazon basin at Tamshiyacu. New hydrological insights: The low-water period lasts about four months, beginning, on average, at the end of July and ending in early November. Since the late 1990s, the low-water period has tended to end later, last longer and the flood recession ends more abruptly than it used to. This may be related to the increased frequency of dry days during the austral winter in the central and southern part of the basin and to increased and more intense rainfall in late spring (November-December). Repiquete events are frequent, 8 each year on average, and sometimes very acute: 18 events with a water-level reversal greater than one meter were registered during the 1985-2015 period. They are related to unusual, intense and extended rainfall during the week preceding the repiquete. Extensions of this preliminary work are suggested, as well as possible implications for recessional agriculture.
Plan de classementHydrologie [062]
Descr. géo.PEROU ; AMAZONE ; AMAZONIE
LocalisationFonds IRD [F B010072834]
Identifiant IRDfdi:010072834
Lien permanenthttp://www.documentation.ird.fr/hor/fdi:010072834

Export des données

Disponibilité des documents

Télechargment fichier PDF téléchargeable

Lien sur le Web lien chez l'éditeur

Accès réservé en accès réservé

HAL en libre accès sur HAL


Accès aux documents originaux :

Le FDI est labellisé CollEx

Accès direct

Bureau du chercheur

Site de la documentation

Espace intranet IST (accès réservé)

Suivi des publications IRD (accès réservé)

Mentions légales

Services Horizon

Poser une question

Consulter l'aide en ligne

Déposer une publication (accès réservé)

S'abonner au flux RSS

Voir les tableaux chronologiques et thématiques

Centres de documentation

Bondy

Montpellier (centre IRD)

Montpellier (MSE)

Nouméa

Papeete

Niamey

Ouagadougou

Tunis

La Paz

Quito