Publications des scientifiques de l'IRD

Bonnet Marie-Paule, Barroux Gwénaël, Martinez Jean-Michel, Seyler Frédérique, Moreira Turcq Patricia, Cochonneau Gérard, Melack J. M., Boaventura G., Maurice Bourgoin Laurence, Leon J. G., Roux Emmanuel, Calmant Stéphane, Kosuth P., Guyot Jean-Loup, Seyler Patrick. (2008). Floodplain hydrology in an Amazon floodplain lake (Lago Grande de Curuai). Journal of Hydrology, 349 (1-2), p. 18-30. ISSN 0022-1694.

Titre du document
Floodplain hydrology in an Amazon floodplain lake (Lago Grande de Curuai)
Année de publication
2008
Type de document
Article référencé dans le Web of Science WOS:000253002900003
Auteurs
Bonnet Marie-Paule, Barroux Gwénaël, Martinez Jean-Michel, Seyler Frédérique, Moreira Turcq Patricia, Cochonneau Gérard, Melack J. M., Boaventura G., Maurice Bourgoin Laurence, Leon J. G., Roux Emmanuel, Calmant Stéphane, Kosuth P., Guyot Jean-Loup, Seyler Patrick
Source
Journal of Hydrology, 2008, 349 (1-2), p. 18-30 ISSN 0022-1694
The floodplains of the Amazon basin influence the hydrology and fluxes of suspended solids and solutes on multiple scales. Our study focused on the floodplain of Lago Grande de Curuai (Obidos, Brazil), a 4000 km(2) segment of floodplain and local upland catchment representative of the lower Amazon. Based on in situ and satellite data acquired from 1997 to 2003, we calculated the exchanges of water between the floodplain and the river and determined the temporal dynamics of flooded area water derived from river flooding, rainfall, runoff, and exchange with groundwater annually for six years. The Amazon River dominated the inputs of water to the flooded area year-round, accounting about 77% of the annual total inputs; rainfall and runoff accounted for about 9% and 10%, respectively, while seepage from the groundwater system accounted for 4%. The hydrologic residence time of the take was about three months, and the floodplain made a net contribution of water to the river. The exported volume (net balance between water input and tosses) varied between 4.2 and 7.3 km(3) depending on the year and represented about 0.75 times the maximal storage reached each year.
Plan de classement
Hydrologie [062]
Localisation
Fonds IRD [F B010040951]
Identifiant IRD
fdi:010040951
Contact