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Inverse Estuaries in West Africa: Evidence of the Rainfall Recovery? ArchiMer
Descroix, Luc; Sané, Yancouba; Thior, Mamadou; Manga, Sylvie-paméla; Ba, Boubacar Demba; Mingou, Joseph; Mendy, Victor; Coly, Saloum; Dièye, Arame; Badiane, Alexandre; Senghor, Marie-jeanne; Diedhiou, Ange-bouramanding; Sow, Djiby; Bouaita, Yasmin; Soumaré, Safietou; Diop, Awa; Faty, Bakary; Sow, Bamol Ali; Machu, Eric; Montoroi, Jean-pierre; Andrieu, Julien; Vandervaere, Jean-pierre.
In West Africa, as in many other estuaries, enormous volumes of marine water are entering the continent. Fresh water discharge is very low, and it is commonly strongly linked to rainfall level. Some of these estuaries are inverse estuaries. During the Great Sahelian Drought (1968–1993), their hyperhaline feature was exacerbated. This paper aims to describe the evolution of the two main West African inverse estuaries, those of the Saloum River and the Casamance River, since the end of the drought. Water salinity measurements were carried out over three to five years according to the sites in order to document this evolution and to compare data with the historical ones collected during the long dry period at the end of 20th century. The results show that in...
Tipo: Text Palavras-chave: Water salinity; Inverse estuaries; West Africa; Drought; Mangrove.
Ano: 2020 URL: https://archimer.ifremer.fr/doc/00612/72434/71381.pdf
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The AMMA field campaigns: accomplishments and lessons learned ArchiMer
Lebel, Thierry; Parker, Douglas J.; Flamant, Cyrille; Hoeller, Hartmut; Polcher, Jan; Redelsperger, Jean-luc; Thorncroft, Chris; Bock, Olivier; Bourles, Bernard; Galle, Sylvie; Marticorena, Beatrice; Mougin, Eric; Peugeot, Christophe; Cappelaere, Bernard; Descroix, Luc; Diedhiou, Arona; Gaye, Amadou; Lafore, Jean-philippe.
The AMMA (African Monsoon Multidiscplinary Analysis) field programme aimed at documenting the West African Monsoon (WAM) climate system, in all its geophysical components. It also includes an important socio-economic component. Encompassing a wide range of spatial and time scales, AMMA is one of the most ambitious such programmes ever set up. While the key accomplishments of AMMA are summarised in this paper, a few lessons of broad interest are also drawn both as a tribute to the extraordinary efforts made by a community of several hundreds of people and as possible guidelines for ensuring a long lasting future to integrated climate and environmental studies in West Africa.
Tipo: Text Palavras-chave: Field campaigns; Instrument deployment; Long-term monitoring; Capacity building; West Africa.
Ano: 2011 URL: https://archimer.ifremer.fr/doc/00214/32510/30990.pdf
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