The topographic threshold is based on the power relationship between area and slope widely applied in gully-erosion research; however, this requires further testing. Accordingly, Alamarvdasht Lamerd Fadagh Larestan regions Fars Province, Iran, were selected as case studies to explore for gullies. Thirty active gullies identified each study during field surveys, data describing land use cover, d...

Rosa Ma Alsina-Pagès 1,*, Marcos Hervás 1, Ferran Orga 1, Joan Lluís Pijoan 2, David Badia 2 and David Altadill 3 1 GTM—Grup de Recerca en Tecnologies Mèdia, La Salle—Universitat Ramon Llull, C/Quatre Camins, 30, 08022 Barcelona, Spain; [email protected] (M.H.); [email protected] (F.O.) 2 GR-SETAD, La Salle—Universitat Ramon Llull, C/Quatre Camins, 30, 08022 Barcelona, Spain; joanp@salleurl...

DEM-based topographic characterization and quantification of surface depression storage are critical to hydrologic and environmental modeling. Mixed conclusions have been obtained from previous studies on the relationship between maximum depression storage (MDS) and DEM grid spacing, which is affected by different factors, such as topographic characteristics, surface delineation methods and DEM...

Lava dome collapse hazards are intimately linked with their morphology and internal structure. We present new lava emplacement models that use calibrated rock strengths allow material behaviour to be simulated for three distinct units: (1) a ductile, fluid core; (2) solid upper carapace; (3) disaggregated talus slopes. first show relative proportions of depend on strength, piles can act as an u...

A topographic-awareness and situational-perception based mobility model with path optimization for tactical MANET is proposed in this paper. Firstly, a formalized process is constructed to generate a random acceleration on nodes as the disturbance caused by small-scale topographic factors in the battlefield. Secondly, a path optimization method with the artificial bee colony algorithm is introd...

Rainfall intensity plays an important role in landslide prediction especially in mountain areas. However, the rainfall intensity of a location is usually interpolated from rainfall recorded at nearby gauges without considering any possible effects of topographic slopes. In order to obtain reliable rainfall intensity for disaster mitigation, this study proposes a rainfall-vector projection metho...

A considerable portion of Canada’s landmass is covered by grassland ecosystems. Insight into the grassland spatial heterogeneity will not only contribute to better understanding of the scale dependent ecological processes but will also help in management and monitoring. Leaf area index (LAI) is a key structural attribute of grassland that reflects primary production. It is well-known that topog...

In all mammals, much of the neocortex consists of orderly representations or maps of receptor surfaces that are typically topographic at a global level, while being modular at the local level. These representations appear to emerge in development as a result of a few interacting factors, and different aspects of brain maps may be developmentally linked. As a result, evolutionary selection for s...