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PORTAIL D'INFORMATION GÉOGRAPHIQUE

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  • The use of airborne infrared scanner images indicates a heat island core over Johannesburg with one nocturnal center, and a strong temperature gradient at about 600-700 m from the city center. The disjunction between the location of the heat island
  • core and highest ground elevation of the central business district offers additional evidence for the relevance of the centrality factor as a distinct parameter in the description of heat island core structure and magnitude. (JPB).
  • 1985
  • Tephra in 31 piston cores from the western Gulf of Mexico and 7 piston cores from the equatorial Pacific were analyzed by electron microprobe.
  • 1985
  • Sequence of sediments at Locality 1 in Zhoukoudian and correlation with loess stratigraphy in northern China and with the chronology of deep-sea cores
  • -L4) in China and with deep-sea-core oxygen-isotope stages 16-6. The 14th layer upward (730,000-230,000 yr B.P.) represents at least four glacial cycles.
  • 1985
  • Postglacial paleogeography in the Tokoro and Sarobetsu lowlarids, Hokkaido, is discussed based on facies and fossil analyses of undisturbed boring cores.
  • 1985
  • Two sediment cores from Kaiyak and Squirrel lakes in north western Alaska yielded pollen records that date to ca. 39,000 and 27,000 yr BP, respectively. When compared to other pollen records from northwestern North America these cores (1) represent
  • 1985
  • Pollen and radiolarian records from deep-sea core RC 14-103: climatic reconstructions of northeast Japan and northwest Pacific for the last 90,000 years
  • 1985
  • Foraminiferal oxygen-isotope data from 24 Tropical Atlantic sediment cores, constrained by 77 14 C dates, are stacked to form a composite record of isotopic Termination 1. This record indicates that most of the isotopic transition at the end
  • 1985
  • Dans un secteur de collines à la périphérie de Sendai, la teneur de l'air en CO présente une variation interhoraire à peine perceptible en saison froide, mais très marquée en été (maximum le matin, minimum l'après-midi). Les concentrations les plus
  • 1985
  • Eight box cores from the tropical Atlantic were studied in detail with regard to foraminiferal oxygen isotopes, radiocarbon, and Globorotalia menardii abundance. A standard Atlantic oxygenisotope signal was reconstructed for the last 20.000 yr
  • 1985
  • The mass accumulation and grain size of the total eolian component isolated from pelagic sediment in two North Pacific cores have been used to evaluate changes in the intensity of atmospheric circulation and source-area aridity over the past 700,000
  • 1985
  • trend from about 1840 to 1960. The reconstruction is in agreement with some subarctic glacial information and with data of percentage melting from arctic ice cores. This and similar reconstructions can provide quantitative information to compare
  • 1985