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Résultats de la recherche (45 résultats)

Première approche des bioclimats humains du Bénin

Bioclimatologie ; Bioclimatologie humaine ; Bénin ; Climatologie appliquée ; Confort ; Géographie physique ; Horaire de travail ; Indice bioclimatique ; Travail ; Variation saisonnière ; Variation spatiale ; Zone intertropicale
1989

Particularités de l'ensoleillement estival au Maroc in Actes.

Années 1960-1979 ; Climat ; Eté ; Géographie physique ; Insolation ; Maroc ; Nuage ; Nébulosité ; Probabilité ; Radiation ; Variation spatiale
1989

Gidrologija sredizemnyh morej. Hydrologie des mers méditerranées

Généralités sur l'hydrologie des mers méditerranées typiques : distribution spatiale de la température et de la salinité, structure des masses d'eaux, variabilité des caractéristiques dans le temps, échange hydrique avec les bassins voisins. - (VVA)
1989

A miniature flume for sampling interrill overland flow

on a semiarid hillslope show that discharge and sediment load do not increase linearly downslope, as hitherto assumed. These findings are explained in terms of spatial variations in infiltration and raindrop detachment rates.
1989

Climatology of statewide extreme temperatures during winter months in the coterminous United States

in the record of extreme temperatures appears to be dictated by proximity to air-mass source regions. Strong, spatially coherent patterns of correlation between statewide extremes and amplitude of midtropopsheric flow are evident in the east.
1989

Concepts of equilibrium and evolution in geomorphology : the model of branch systems

problems of causality, arising from differing spatial and temporal scales of study, have been incorporated into geomorphic understanding of systems. The final objective is : 4) to suggest a general conceptual model, based on recent thermodynamic concepts
1989

Analyse spatio-temporelle des relations cerne-climat in Actes.

L'analyse spatiale (sur six populations de pin sylvestre des environs de Marseille et douze postes météorologiques plus ou moins éloignés) met en évidence le rôle prépondérant du biotope dans la caractérisation de la relation cerne-climat. L'analyse
1989

Structures, architectures forestières à Sclérophylles et prévention des incendies

Par l'analyse des réponses des principales essences forestières aux incendies, les AA. définissent trois modes d'occupation spatiale des forêts de l'étage méditerranéen. Ils analysent les stratégies adaptatives du Pin d'Alep, du Chêne vert et du
1989

Sequential sampling to measure the infiltration rate within relatively homogeneous soil units

This study was carried out on an older terrace of the Allier river where attention was focused on the infiltration rate. The spatial variability of infiltration rate was investigated, using geostatistical methods. The application of the sequential t
1989

Mechanisms associated with the erosion of sand dune cliffs, Magilligan, Northern Ireland

eroding events are noted, resulting from particular wave, wind, tide combinations. The spatial variability in dune scarping is associated with vegetation and soil development, and slope failures range from granular avalanches to retrogressive rotational
1989

Rates and mechanisms of change in hard rock coastal cliffs in Coasts : erosion and sedimentation.

discontinuity pattern. Emphasis is thus placed on the synthesis of quantifiable rock mechanics parameters and details of change in coastline morphology. Results indicate that although cliff retreat shows no regular spatial or temporal pattern, clear trends can
1989

Modification of old land surfaces by ice sheets in Weathered mantles (saprolites) over basement rocks of High Latitudes = Les manteaux d'altération sur les socles des Hautes Latitudes.

, the amount and spatial distribution of ice sheet erosion, the processes of land transformation and some implications with regard to ice sheet dynamics.
1989

Neotectonism along the Atlantic passive continental margin : a review in Appalachian geomorphology.

geomorphic, structural, and stratigraphic data. The final section examines the spatial relationship between areas of historical tectonism and seismicity and areas of inferred, longer-term Cenozoic deformation.
1989

The role of catastrophic geomorphic events in central Appalachian landscape evolution in Appalachian geomorphology.

In the first part, the AA. consider some examples of historic catastrophic flood and landslide events to generalize about the spatial and temporal controls on present-day catastrophic events. In the second part, they consider selected examples
1989

Palaeohydrologic conditions in the Mark River basin during the last 15.000 years

This paper presents an outline of lithologic and morphologic developments in the alluvial environment of the Mark Basin in Central Belgium during Post Glacial times. By means of about 900 borings the spatial arrangement and stratigraphic position
1989

Sedimentation in the Edsviken Bay studied by the X-ray radiographic and the Pb-210 methods

Les radiographies (mono-stéréo) et la datation au Pb210 sont utilisés pour corréler et quantifier les variations spatiales du taux de sédimentation de dépôts à stratification annuelle dans la baie d'Edsviken en Mer Baltique.
1989

Etagement et connectivités, particularités des systèmes de montagne in Quelle spécificité montagnarde?.

Les AA. analysent la réponse biologique à la variabilité des conditions écologiques et à la vigueur des transferts. Ils montrent que la spécificité de l'organisation spatiale et de l'évolution du tapis végétal dans le temps trouve son origine dans
1989

Megarel'ef Zemli i tektonika litosfernyh plit Mégarelief de la Terre et tectonique des plaques

oceanic margins), interplate orogens, intraplate transition zones (passive oceanic margins)| 29 types of mega-relief are distinguished within the groups. The systematics of the mega-relief types is described, ant their spatial distribution over the Earth's
1989

Weathering trends in fine debris beneath a snow patch, Niwot Ridge, Front Range, Colorado

-20 cm. Spatial variations in eolian additions and meltwater produce complex patterns in chemical weathering of fines beneath large snow patches, although the nature of clay-mineral change is typical of humid, temperate, mid-latitude environments.
1989

A comparative study of sedimentological parameters of some superficial sediments on the Flemish Banks in The Quaternary and Tertiary geology of the Southern Bight, North Sea.

Atlantique ; Atlantique Nord ; Distribution spatiale ; Flemish Banks ; Fond sous-marin ; Granulométrie ; Géographie physique ; Mer du Nord ; Sédimentologie ; Transport sédimentaire
1989