inscription
Portail d'information géographique

Résultats de la recherche (48 résultats)

Affinez votre recherche

Par Collection Par Auteur Par Date Par Sujet Par Titre
  • Approche astronomique des variations climatiques: les variations mensuelles et en latitude de l'insolation de 130.000 à 100.000 et de 30.000 à aujourd'hui. in Paléoclimats. (Astronomical approach of paleoclimatic variations: monthly and latitudinal
  • Approche astronomique de l'écologie humaine préhistorique: reconstitutions des insolations au Würm récent en Périgord. in Paléoclimats. (An astronomical approach to human prehistoric ecology: quantitative insolation at Late Würm in south-west France)
  • Approche astronomique ; Aquitaine ; Ecologie humaine ; France ; Géographie historique ; Histoire de la géographie ; Insolation ; Paléo-insolation ; Paléoclimatologie ; Paléolithique ; Pléistocène supérieur ; Préhistoire ; Périgord ; Quaternaire
  • The astronomical theory of paleoclimates in Climatic variations and variability: facts and theories.
  • Recent objective comparison in the time and frequency domains between ice-volume, paleotemperature and insolation curves strongly support the astronomical theory. Related physical models are also able to reproduce past climate variations
  • Astronome ; Biographie ; Géocentrisme ; Géographe ; Histoire de la géographie ; PTOLEMEE (C.) ; Siècle 2
  • Vie et oeuvres de l'astronome et géographe grec. Un chapitre est consacré à ses travaux en géographie. L'ouvrage expose la théorie du géocentrisme de Ptolémée, face à l'héliocentrisme de Copernic et de Kepler. - (FC)
  • Der Astronom der Herzogin. Leben und Werk von Franz Xaver von Zach
  • L'astronome de la duchesse. La vie et les travaux de Franz Xaver von Zach 1754-1832
  • Astronome ; Biographie ; Cartographie ; Géodésie ; Géographie ; Histoire de la cartographie ; Siècle 18 ; Siècle 19 ; VON ZACH (F.X.)
  • L'astronome, géodésien et géographe F.X. von Zach est né dans la ville hongroise de Pest. Il a mené une existence tumultueuse et a vécu en différents lieux d'Autriche-Hongrie, d'Allemagne, d'Italie et de France où il est mort à paris en 1832 (il est
  • Georg von Neumayer (1826-1909) and his astronomical activity in Australia
  • Herschel, musico y astronomo (Sir William Herschel, musicien et astronome)
  • This is a bibliographic paper about the life and work of david Frölich, the famous late humanist mathematician, astronomer, calendar maker and geographer. Frölich contributed significantly to the wider geographical knowledge of his age - (JS)
  • Brunhes-Matuyama magnetic reversal dated at 790,000 yr B.P. by marine-astronomical correlations
  • Hemisphere summer insolation with oxygen-isotope ratios from tropical cores. The latitude-dependent insolation variations are calculated from planetary mechanics and thus provide a highly accurate astronomical time scale. The insolation variations strongly
  • is supported by a resulting consistent identification of principal isotope-ratio peaks with high-and low-latitude coincident insolation maxima. The Brunhes-Matuyama reversal is found in interglacial Stage 19, and is dated on the astronomical time scale
  • The author discusses global geokinetic processes and proposes to establish a joint commission of astronomers-geodesists and geologists-geophysicists in order to solve the problems.
  • L'itinéraire intellectuel d'un homme de science du XVIIIsiècle, J. H. Lambert, philosophe, astronome et initiateur de la cartographie scientifique.
  • Claude Ptolémée, astronome, astrologue, géographe : connaissance et représentation du monde habité
  • the Academy's epistemological foundations and prompted a debate about the educational and political significance of geography as a scientific practice. It shows that the death in 1726 of Guillaume Delisle, a prominent Academy astronomer, led to a spirited
  • campaign to elect Philippe Buache, to a new Academy position as a geographer rather than an astronomer. It concludes that this campaign emphasised the social and political utility of geography, though the Academy's decision to recognise this new
  • Astronomical forcing of contrasting rainfall changes in tropical South America between 12,400 and 8800 cal yr B.P.
  • All factors affecting lenght of astronomical year seasons duration are described. Among the most important ones belong inclination of the Earth axis, changes of the Earth speed during its revolution around the Sun on the elliptic orbit, changes
  • people helped to further knowledge of many new areas. The three main contributions concern descriptive geography, astronomical and mathematical geography, cartography.
  • This study documents the need of dating coral with the high precision/sensitivity mass-spectrometric techniques for future resolution of the temporal relationships among sea level changes, climate oscillations, and astronomical forcing-relationship
  • It is proposed that interlocked variations of ice-sheet sinks in both polar hemispheres amplified and transmitted Milankovitch summer half-year insolation changes (a version of the astronomical theory) between 45 and 75 N into the globally
  • Several possible causes of the rainfall variations over South Africa are discussed. These include astronomical phenomena, the quasi-biennial oscillation and the South Oscillations. Prospects for long-term rainfall forecasts are given. (AJC).
  • La carte du bassin du haut Missouri, levée en 1836-40 et publiée en 1843 au 1/1200000 par Nicollet, Savoyard de Cluses, normalien et astronome, assisté par John Charles Frémont| biographie et expédition de Nicollet. (RB).