Regimenes pluviométricos bimodales en un ambiente tropical : el caso de las Antillas (Régimes pluviométriques bimodaux en milieu tropical : le cas des Antilles)
Antilles ; Géographie de l'Amérique ; Précipitation ; Régime pluviométrique ; Zone intertropicale
Amérique du Sud ; Andes ; Glaciaire ; Géographie physique ; Géomorphologie climatique ; Haute montagne ; Montagne ; Périglaciaire ; Zone intertropicale
In this review, the A. examines the relative distinctiveness of the tropical Andes by also looking for possible differences in glacial landforming process and in those occurring under paraglacial conditions.
Etude physique des concentrations de sédiments en suspension dans une rivière jamaïcaine, cours d'eau tropical à crues et inondations de saison humide. (AST).
Modeling the effects of tropical cyclones on flooding in the Santa Fe River Basin, Florida in Caribbean hurricanes.
Crue ; Cyclone tropical ; Etats-Unis ; Florida ; Géographie de l'Amérique ; Modèle ; Risque naturel ; Santa Fe bassin ; Statistique
In this paper the risk of floods associated with tropical cyclones are investigated on the Santa Fe river and compared to those associated with other flood generating processes in the basin. The statistical properties of the models employed permit
Some aspects of the urban climates of tropical South America : the Brazilian contribution in Urban climatology and its applications with special regard to tropical areas.
Brésil ; Climat ; Climat urbain ; Climatologie appliquée ; Géographie de l'Amérique ; Ville
Retreating cliffs in the humid tropics: an example from Paraiba, northeastern Brazil in Geomorphology of changing coastlines.
Argile ; Brésil ; Cénozoïque ; Falaise ; Géographie de l'Amérique ; Géomorphodynamique ; Littoral ; Versant ; Zone intertropicale
True marine cliffs are extremely rare or almost absent in the humid tropics, where they have been said to be replaced by coastal slopes covered by vegetation, subject to occasional landslides by essentially similar to inland slopes. On the Paraiba
coast, northeast Brazil, under a humid tropical climate, 21 % of the coastline consist of retreating marine cliffs, cut into Plio-Pleistocene sandy clays, a very favourable factor.
Astronomical forcing of contrasting rainfall changes in tropical South America between 12,400 and 8800 cal yr B.P.
Amazonie ; Amérique du Sud ; Bolivie ; Diagramme pollinique ; Dynamique de l'atmosphère ; Eté ; Niveau lacustre ; Palynologie ; Paléoclimatologie ; Précipitation ; Variation saisonnière ; Zone intertropicale
Amazon Basin ; Atmospheric dynamics ; Bolivia ; Lake level ; Palaeoclimatology ; Palynology ; Pollen diagram ; Precipitation ; Seasonal variation ; South America ; Summer ; Tropical zone
Today, precipitation over tropical South America is largelly controlled by the seasonal movements of the Inter-Tropical Convergence Zone (ITCZ). In this paper, the AA. reconstruct the rainfall regimes from 2 sedimentary records in South America
that exhibit contrasting characteristics (southeastern Amazonia and the northern part of the Bolivian Altiplano). The paleoclimatic reconstructions are compared with present-day climatic conditions in the 2 regions and with other tropical South American records
General circulation mechanisms instrumental in both annual cycle and interannual variability of rainfall are studied with reference to key regions of the tropical Americas and Africa. For most of these regions, rainfall anomalies tend