[1] Mechanistic theories of fluvial erosion are essential for quantifying large-scale orogenic denudation. We examine the topographic implications of two leading classes of river erosion model, detachment-limited and transport-limited, in order to identify diagnostic and testable differences between them. Several formulations predict distinctly different longitudinal profile shapes, which are s...

Abstract Flood causes great and uncompressible damage to people’s life and properties as well as environment each year in Iran. This research was carried out at the west section of Jazmurian basin that placed in the southeast of Iran. In this research physical characteristics such as area (A), perimeter (Pr), average elevation of basin (av.e), average slope (av.s), gravelious coefficient (G),...

Landslides may lead to sedimentation of streams and rivers in tropical environments over time periods of decades. Hence, it is important to account for the stochastic occurrence of landslides when predicting sediment yields, particularly in areas undergoing deforestation. A hillslope-stability simulation model is developed based on applying an infinite slope stability analysis and the groundwat...

Paleogene depositional systems in the south of Lufeng sag have complex spatial distribution, which are in?uenced by pre-depositional paleogeomorphology and multi-period tectonic activities. In this paper, to clarify controlling effect tectonic-paleogeomorphology on sedimentary facies distribution effectively guide oil gas exploration, paleogeomorphic pattern is reconstructed impression method, ...

Runoff is an important component of water resources and also the basis for regional development utilization. In order to explore new characteristics spatiotemporal variation runoff in whole Yellow River Basin, Basin from 1982 2012 was studied based on measured data 14 representative basins upper, middle, lower reaches Basin. The results showed that depth a decreasing trend, with decrease rate 0...

Flood is one of the most destructive natural hazards which impose vast costs in order to compensate its effects, especially in areas where there are manifestations of human development (such as cities). Urban development, particularly in the margins of rivers, has increased flood damages in recent decades. The aim of this study was to develop flood hazard maps of Birjand plain based on analyses...