Caractéristiques physico-chimiques et distribution de la chlorophylle dans les eaux d'un lagon d'île haute soumis aux in...
The climate in the Javanese basin is a monsoon regime : dry from June to September and humid from November to March. In regions seasonally subject to substantial precipitation, salinity is one of the more important factors affecting the distribution and abundance of fauna. For this reason, stationary vertical profiles have been performed to measure...
Resistivity methods were used with a vertical electrical sounding network to investigate the relationship between freshwater and saltwater along the northern coastline of Senegal, from Dakar to Saint-Louis. The water-table aquifer lies in quaternary sands with very low piezometric heads, less than one meter near the coast. The depth of the saltwate...
La finalité du programme ANTROPIC est de dresser un bilan des conditions du milieu (eutrophisation, hypersédimentation) dans la zone la plus urbanisée du lagon de Tahiti, de proposer des outils de diagnostic de l'état de l'environnement lagonaire utiles pour la gestion du milieu
That the notorious Sahelian drought (1968-1973) of Sahelo-Sudan Sub-Sahara was not unique has been established as a chronological sequence of past droughts in the Lake Chad basin. Historical drought chronology is traceable to written evidence. Pre-historical evidence of dune landscapes in the Nigerian Lake Chad basin may be located on the ground or...