Colorado ; Cultural identity ; Landscape ; Leisure ; Mountain ; Semiotics of space ; United States of America
As certain mountains such as the SanJuanMountains in southwestern Colorado are imbued with meaning, they become peaks of identity, symbolic landscapes associated with community and cultural ideals. For communities near the SanJuans
Les conséquences de l'isolement sur la santé. Selon les AA., il n'y a pas eu une époque de plus grand isolement que l'actuelle, dans l'aire proche de la ville San Augustin de Valle Fértil, province de SanJuan. On insiste notamment sur les problèmes
Hypsometric forcing of stagnant ice margins: Pleistocene valley glaciers, SanJuanMountains, Colorado
Colorado ; Deglaciation ; Glacial valley ; Glacier margin ; Hypsometry ; Model ; Mountain ; Pleistocene ; Quaternary ; Topography ; United States of America
The A. uses the location of stagnant ice deposits in many SanJuan valleys, Colorado, to test how valley hypsometry and topographic obstructions influence the type of margin present during valley glacier retreat.
Rocky Mountains, no longer existed. From ca. 9600 to 3000 yr B. P. timberline in the SanJuan Moutains was higher than present. Cooling apparently began ca. 3000 yr B. P. (CM).
Comparaison entre les terminaisons de pentes situées en zone subalpine dans les SanJuanMountains dont 22 couloirs d'avalanche et 15 autres versants (type de pente, matériel superficiel, profil longitudinal, dépôts, impact des avalanches et profil
Statistical forecasting of snow avalanches, SanJuanmountains, Southern Colorado, USA
saison les journées sont classées par importance du phénomène et sa répétitivité. L'intégration des paramètres météorologiques et nivologiques pour les périodes précédant les avalanches ou les journées sans avalanche, introduit l'élèvement récursif de la
Dans le milieu alpin des SanJuanMountains (SW Colorado), on a mesuré la perte de masse des échantillons fragmentés d'andésite résultant de l'altération à la surface du sol. Les résultats montrent une perte moyenne de 0,079 0,012%/an (moyenne faite
Recent research has established strong correlations between meteorologic data, snowpack stratigraphy, and snow avalanche occurrence. Based on several years of data collection on weather conditions and avalanche activity in the SanJuanMountains
Aerial photography ; Colorado ; Global Positioning System ; Landslide ; Mountain ; Photogrammetry ; Photointerpretation ; Pond ; Topography ; United States of America
elevation of one pond on the Slumgullion landslide in the SanJuanMountains of southwestern Colorado. They also examine the persistence of surface morphology at the 8 pond locations using topographic profiles measured from stereo aerial photographs from
On a analysé, dans les SanJuanMountains, Colorado, les relations entre la structure de la neige, les facteurs climatiques et la nature des avalanches observées. La métamorphose due au gradient thermique est le mécanisme dominant qui détermine le
Carandell y Pericay was a distinguished geologist and geographer and a representative of Spanish environmental science. He produced over 300 publications, especially on the geology and physical geography of mountainous areas in Spain, but also
Tectonic, climatic and lithologic influences on landscape fractal dimension and hypsometry : implications for landscape evolution in the San Gabriel Mountains, California
California ; Earth surface processes ; Fractal geometry ; Lithology ; Model ; Mountain ; Statistics ; Tectonics ; United States ; Weathering
The AA. attempt to correlate spatially varying rates of vertical tectonism along the southern frontal fault system of the San Gabriel Mountains, with corresponding hypsometric integrals and landscape fractal dimensions. They also seek to constrain
geomorphic features are then used to suggest potential processes responsible for the correlations. Implications of these results for the topographic evolution of the San Gabriel Mountains are then discussed.
California ; Chaparral ; Domaine méditerranéen ; Ecosystème ; Etats-Unis ; Formation arbustive ; Gestion de l'environnement ; Géographie de l'Amérique ; Incendie de forêt ; Mount Wilson ; Pasadena ; Risque naturel ; San Gabriel Mountains ; Siècle 19
Evolution naturelle des incendies et impact sur le chaparral à partir de 1868. San Gabriel Mountains, Pasadena, Californie.
An inventory and evaluation of natural areas in San Diego County
California ; Ecosystème ; Environnement ; Etats-Unis ; Géographie de l'Amérique ; Planification régionale ; Protection de la nature ; Région naturelle ; San Diego
Of the 64 public and private preserves inventoried in the desert, mountains and coast of this county, 32 of them were classified as well preserved , which included 16 % of the total county area in which now live 2 million people. - (DWG)