Delineation of boundary between tropical/subtropical in the middle section for eco-geographic system of South China
China ; Climatic index ; Concept ; Ecosystem ; Geosystem ; Soil ; Southern China ; Subtropical zone ; Tropicalzone ; Vegetation index ; Zonal geography
Chine ; Chine du Sud ; Concept ; Ecosystème ; Géographie zonale ; Géosystème ; Indice climatique ; Indice de végétation ; Sol ; Zone intertropicale ; Zone subtropicale
. New concepts of tropical, annual tropical, true tropical and tropical fluctuating zone are formed to understand tropical area. Based on the indexes of climate, vegetation and soil, boundaries of tropical, annual tropical, true tropical and tropical
fluctuating zone of the study area are established. The tropical fluctuating zone explains different locating of different researchers. This paper also puts forward a new method to display boundary for eco-geographic regions.
Distributions and hydrological characteristics of tropical cyclone rainstorms and floods in China
Chine ; Crue ; Cyclone tropical ; Distribution spatiale ; Débit de pointe ; Hydrologie ; Orage ; Précipitation ; Variation saisonnière ; Zone climatique
China ; Climatic zone ; Flood ; Hydrology ; Pic discharge ; Precipitation ; Rainstorm ; Seasonal variation ; Spatial distribution ; Tropical cyclone
Regional distribution of the rainstorms and floods caused and affected by tropical cyclones are described and the geographical divisions of China are also given in this paper. The hydrological characteristics of tropical cyclone rainstorms
and floods are discussed and compared with that on non-tropical cyclones.
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.
Action anthropique ; Changement global ; Crue ; Dynamique de versant ; Erosion des sols ; Fluviatile ; Forêt tropicale ; Géochimie ; Géomorphologie ; Précipitation ; Type de temps ; Zone intertropicale
It is debatable whether tropical geomorphology is intrinsically different from the geomorphology of other places. This paper primarily examines the research themes of the last ten years or so, identifies the major trends, and attempts to predict
areas where interest is expected to concentrate in near future. The following topics among the current research trends are highlighted : geochemical erosion, movement on tropical slopes, rivers in the tropics, tropical landforms, hydrology
and sedimentation in the rainforest, denudation efficiency in the humid tropics, the Quaternary evolution and changes, and the applied side of tropical geomorphology.
An evaluation of the port of Fremantle as a tropical cyclone haven
Abri ; Années 1949-1976 ; Australie ; Catastrophe ; Climatologie appliquée ; Cyclone tropical ; Dynamique de l'atmosphère ; Fremantle ; Géographie physique ; Océan Indien ; Port ; Prévention ; Refuge ; Sécurité en mer ; Tempête ; Vent ; Western
Australia ; Zone intertropicale
The Fremantle area provides safe shelter in the inner harbour or in Cockburn Sound from tropical cyclones. Large ships anchoring in Gage Roads would be more vulnerable to strong winds and seas associated with intense tropical cyclones. (JPB).
Multi-objective programming model of tropical crops in Hainan Island
Agroclimatology ; China ; Ecology ; Hainandao ; Mathematical model ; Model ; Multi-purpose programming ; Tropicalzone
Agroclimatologie ; Chine ; Ecologie ; Hainandao ; Modèle ; Modèle mathématique ; Programmation à buts multiples ; Zone intertropicale
According to Hainan Island's biological characteristics, and existing structure of productivity of tropical crops and local climatic conditions, this paper carries on regional division of tropical crops by fuzzy mathematics. Based on calculation
of basic parameters for the formation of production, near-term optimum models of tropical crops structure of each region was established by means of multi-objective programming.
The seasonal variations of global wind field in the tropics mainly at 850 mb and their relation to the cloud distribution revealed from outgoing longwave radiation (OLR) are studied based on 5-day mean data. Seasonal composite maps of wind and OLR