A lejtoprofil-analizis modszereinek alkalmazasa a lejtoformalodas vizsgalatara Nagyborzsony kornyékén. (Application of slopeprofile analysis methods in the investigation of slope development in the region of near Nagyborzsony)
Dynamique de versant ; Evolution de versant ; Géographie de l'Europe ; Géomorphométrie ; Hongrie ; Hongrie, Nord ; Nagyborzsony ; Profil de versant ; Versant
The object of this study is to examine how results of slopeprofile analysis might be used in explaining slope form and slope development. (CK).
Some problems of slope development reflected in slope-profile investigations
Géographie physique ; Géomorphométrie ; Méthodologie ; Nivellement ; Profil de versant ; Sol ; Versant
Mesures au théodolite de profils de versants peu inclinés dans des sédiments meubles. La sélection de l'emplacement du profil se fait aléatoirement selon un principe statistique. L'A. insiste sur la nécessité d'un travail détaillé pour
Slope geometry resulting from the spatial variation of soil permeability
Mass movement ; Model ; Permeability ; Slope ; Slope dynamics ; Slope gradient ; Soil erosion ; Soil properties ; Splash
In a series of computer simulations the question is treated: what is the impact of spatial differences in infiltration on long-term slope development? The computations suggest that different slopeprofils can be created under ensystemic conditions
not pnly by process-specific charakteristics but also due to differences in infiltration. For example, a convex sllopeprofil is formed, if there is declining infiltration along slope length. Increasing infiltration downslope results in a concave slope
profile whereas constant infiltration yields a more or less rectilinear slopeprofile.
Slopeprofile variability in first-order drainage basin
Bassin-versant ; Echantillonnage ; England ; Géographie de l'Europe ; Géomorphométrie ; Méthodologie ; Profil longitudinal ; Royaume-Uni ; South Downs ; Sussex ; Versant
L'A. démontre la nécessité d'un très grand nombre de profils longitudinaux de versants lorsqu'on veut assimiler le versant à une population infinie de profils en deux dimensions.
Velocity profiles measured on the windward slope of a transverse dune
The principal aim of this study is to measure the variability in wind speed on the windward slope of a dune, determine the magnitude of wind acceleration, describe the effects of this acceleration on the shape of wind profiles, and discuss
The geomorphic evolution of slopes and sediment chutes on forereefs
the topographic profiles. Comparisons of coral age and adjacent slope angle indicated that the steeper slopes are older and that mass failure of the slope reduces the steepness of the forereef front and destroys the coral community along the disturbed slope
Frequentslope failures of the forereef dropoff occur in living coral reefs on the island of Bonaire in the southern Caribbean. Topographic profiles of 10 sites were taken perpendicular to shore, followed by an estimation of coral ages along
. Slopes grow until reaching a critical steepness, after which underwater sliding of the over-steepened forereef front results.
Many paleodischarge reconstruction techniques assume one-to-one correspondence between water surface slope and slope measured from a topographic map. The assumption that map slope or water surface slope, however, can be directly substituted
for energy slope, involves unknown degrees of error. This research shows that energy gradients are generally overpredicted by both water surface slope (mean = 44 percent) and map slope (mean = 11 percent).
Slopes and slopes processes : research over the past decade
Bibliography ; Computing ; Digital elevation model ; Model ; Research ; Slope ; Slope dynamics ; Slope gradient ; Soil ; Soil properties ; Years 1990-99
. First, recognition of the importance of differentiated soil profiles (and vegetation) to slope development that has underpinned much recent research. Secondly, the development of computational techniques that has enabled such research to be promoted
, as both larger (long-term slope development) and smaller (detailed soil profile hydrology) scales can be tackled using state-of-the-art hardware and software.
This particular time period has seen considerable wide-ranging advances in slope research. There has been an almost complete turnaround in the approach taken towards slope research. Two linked themes provide the principal focus for this article
Slope form and associations with ground boulder cover in arid environments, northeast Jordan
Arid area ; Grain size distribution ; Jordan ; Regression analysis ; Sediment transport ; Slope ; Slope dynamics ; Spatial variation
This study examines and quantifies spatial variations in slopeprofile shape and uses boulders as an index of relative sediment transport, by establishing the degree of clast burial from different plots located at points along the profile. The study
site is located in northeast Jordan, an arid landscape, characterised by a late Tertiary to early Quaternary basalt plateau, spreading across the foot-slopes of the Druz Mountains.
In order to determine the effect of bed roughness on velocity distribution, the AA. used 7 different configurations of bed roughness, with 16 test runs of varying discharge and slope for each configuration. Results indicate that velocity profile
shape remains fairly constant for a given slope and roughness configuration as discharge increases. As slope increases, the profiles become less linear. Rates of velocity increase suggest that roughness elements spaced at a length/height ratio of about 9
are most effective at creating flow resistance over a range of discharges in channels with steeper slopes.
Rock mass strength as a control of slope development : evidence from Southern Africa
Rock Mass Strenght (RMS) theory is examined to quantify some of the factors involved in the development slope angles. Contrasting slope development profiles are related to RMS ratings and critical levels are identified. Classic slope decline
Evolution of undercut slopes on abandoned incised meanders in the Eastern Highland Rim of Tennessee, USA
Channel geometry ; Fluvial erosion ; Meander ; Model ; Palaeovalley ; Slope ; Slope gradient ; Stream ; Tennessee ; United States of America
The aim of this study was to infer process rates from profile form using best-fit criteria, to use these rates to estimate the ages of the profiles, and then to compare these ages with ages derived from stream-incision rates. Therefore field surveys
, location-for-time reasoning, and computer modeling were used to study the evolution of slopes on valley walls of abandoned bedrock meanders on the Eastern Highland Rim.
Evolution de versant ; Modèle cinématique ; Profil de versant ; Tectonique ; Versant
Un modèle cinématique d'évolution de versant inclue des termes concernant la récession de versant, l'applatissement de versant et des mouvements tectoniques. la modélisation montre que la préservation des traits caractéristiques du profil de versant
A C program for detecting slope forms from grid dems
Geomorphology ; Mathematical model ; Model ; Programming ; Research technique ; Slope
The C program is operational under either the DOS or UNIX environment, depending on how it is compiled. This program is designed to detect slope forms in three dimensions that include both the profile and cross-section directions based on elevation
Fractal techniques and the surface roughness of talus slopes : a comment and reply
Andrle and Abrahams (1989) present the results of a rigourous test of self-similarity on profiles and transects obtained from talus slopes. The aim of their paper is to show that the self-similar fractal model (SSFM) is of limited usefulness
in describing the roughness of talus slopes and presumably of other geomorphic features. But several issues raised by the AA. require further discussion.
Simulated slope development sequences in a three-dimensional context
Downvalley sequences of slopeprofiles have been inferred to represent temporal sequences. Results from a simulation model are presented which demonstrate that for a slope system in dynamic equilibrium, the downvalley variation in form is best