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Portail d'information géographique

Résultats de la recherche (43 résultats)

Inventory, distribution and topographic features of rock glaciers in the southern region of the Eastern Italian Alps (Trentino)

Inventory, distribution and topographic features of rock glaciers in the southern region of the Eastern Italian Alps (Trentino)
2012

Fedőüledékes depressziók típusai és kialakulásuk

of the depressions of superficial deposit (by topographical mapping, morphological mapping) and the morphology of the bedrock (by Vertical Electrical Sounding). He analysed the denudation types of superficial deposit found at the bottom of depressions of bedrock
(on the topographical map using slope angle class data). In the paper the depressions of superficial deposit were classified. - (AM)
2012

Comparison of pre-AD 79 Roman paleosols in two contrasting paleo-topographical situations around Pompei (Italy)

Comparison of pre-AD 79 Roman paleosols in two contrasting paleo-topographical situations around Pompei (Italy)
Two transects of 13 stratigraphical cross-sections were studied and 7 pre-AD 79 Roman paleosols were analysed in two contrasting paleo-topographical situations northwest (Boscoreale) and south (Moreggine) of ancient Pompeii. The pre-AD 79 paleosol
2012

Predicting gully initiation : comparing data mining techniques, analytical hierarchy processes and the topographic threshold

Predicting gully initiation : comparing data mining techniques, analytical hierarchy processes and the topographic threshold
In this work, a data mining (DM) procedure based on decision trees was applied to identify areas of gully initiation risk. Performance was compared with the analytic hierarchy process (AHP) expert system and with the commonly used topographic
2012

A tematikus térképek kialakulása

The maps are classified into general geographical and thematic maps. The general geographical maps can be topographic or chorographic maps, which show objects that help orientation. The thematic maps are made with another objective: to represent
2012

The influence of local topography for wind direction on Mars : two examples of dune fields in crater basins

morphology and slip faces, the AA. conclude that the studied dune fields are influenced by topographically-controlled complex wind directions. Their morphological analysis reveals that inside Moreux Crater in particular, the topographic setting dominates
2012

Impact of neotectonics on drainage network evolution reconstructed from morphometric indices : case study from NW Indian Himalaya

(AF), Topographic Symmetric Factor (T), Stream length Gradient Index (GI) Hydauralic Sinuosity Index (HSI), Topographic sinuosity Index (TSI) and Standard Sinuosity Index (SSI) have helped in understanding tectonic and climatic perturbation
2012

Topographic forcing of flow partition and flow structures at river bifurcations

Topographic forcing of flow partition and flow structures at river bifurcations
2012

Topographic predictors of susceptibility to alluvial fan flooding, Southern Apennines

Topographic predictors of susceptibility to alluvial fan flooding, Southern Apennines
2012

Spatial variations in excess shear stress in a gravel-bed river bend

Detailed topographic and hydraulic measurements were obtained in a bend of the Colorado River in Rocky Mountain National Park, Colorado, to characterize flow through the reach with a two-dimensional model. The distribution of excess shear stress
2012

Contribution to regional division of Slovakia based on the application of the Reilly’s model

lies in the application of the topographic version; the oscillatory version possesses a correcting and refining role. Functional urban regions have been used as basic spatial zones in authors’ analysis. - (AM)
2012

Using geomorphological and geophysical survey to research relations between landforms and joint tectonics in the Broumovská vrchovina (Czech Republic)

Cretaceous and Permo-Carboniferous sedimentary series. They examine joint orientation using field measurements and 3D seismic tomography. The orientation of linear topographic features (morpholineaments) shows a clear dependency on two perpendicular joint
2012

Italian mapmakers in the Spanish civil war (1937–1939)

Civil war ; Corpo Truppe Volontarie ; History of cartography ; Istituto Geografico Militare ; Italians ; Military cartography ; Sezione Topocartografica ; Spain ; Spanish Civil War (1936–1939) ; The 1930's ; Topographic map
at the 1:50 000 scale and selectively edited its topographical content to obtain the road map at the 1:200 000 scale.
2012

Main geologic factors controlling site response during the 2009 L’Aquila earthquake

extensional basins filled by Quaternary continental deposits, 2D amplifications within basins with horst-and-graben geometry of the bedrock, jointed rock-mass amplification and topographic amplification. Slope and ground failure cases are also reported
2012

Evidence of tectonic influence on drainage evolution in an uplifting area: the case of northern Sila (Calabria, Italy)

flank of the massif to its interiors including the Cecita Lake. The AA. focused on the general topographic metrics, drainage patterns, and river long profiles, based on field surveys and aerial-photo interpretation. Their goal was to investigate
2012

A Persányi-hegység salakkúpjai a DEM-morfometria tükrében

(H/W), slope, volume, etc., were determined on 12 recognizable scoria cones using a 10 m-resolution DEM created from the 1:25,000 topographic map. The cones were classified according to age (two age groups above) and shape (well-formed and deformed
2012

Spatio-temporal distribution of dust storms - a global coverage using NASA TOMS aerosol measurements

of aerosol maps have confirmed that major source areas can be connected to specific geomorphological environments of distinct arid-semiarid regions with recent pluvial history. Largest dust activity can be observed in the topographical lows of Saharan
2012

Land-use impact on soil carbon and nitrogen sequestration in typical steppe ecosystems, Inner Mongolia

To explore the optimal land-use for soil carbon (C) sequestration in Inner Mongolian grasslands, the AA. investigated C and nitrogen (N) storage in soil and soil fractions in 8 floristically and topographically similar sites which subjected
2012

Spatial analysis of morphometric indices : the case of Bolu pull-apart basin, western section of North Anatolian Fault System, Turkey

This study defines the tectonic impact of the North Anatolian fault system (NAFS) on the evaluation and activity of the Bolu pull-apart basin using morphometric indices based on topographic maps. In this study, 3 indices including valley floor width
2012

Coastal and inland karst morphologies driven by sea level stands : a GIS based method for their evaluation

This study aims at defining a general method for identifying, in karst coastal settings, the elevations of flat or low topographic gradient surfaces (using morphometric analysis of Digital Elevation Models (DEMs) and geographical information systems
2012