At large scale, landscapes result from the combination of two major processes: tectonics which generate the main relief through crust uplift, and weather which accounts for erosion. This paper presents the first method in computer graphics that combines uplift and hydraulic erosion to generate visually plausible terrains. Given a user-painted uplift map, we generate a stream graph over the enti...

A drainage basin simulation model introduced here incorporates creep and threshold slumping and both detachmentand transport-limited fluvial processes. Fluvial erosion of natural slopes and headwater channels is argued to be dominantly detachment-limited. Such slopes undergo nearly parallel retreat and replacement with alluvial surfaces under fixed base level, in contrast with gradual slope dec...

The migration architecture of the rivers has a significant influence on a wide range of disciplines. For example, the Geomorphology, the hydraulic, the climate, hydrologic and topographic characteristics and so on. Previous studies relating to the issue of fluvial migration include the literature of river channel patterns [1,2], deposition transport and grain size sorting [36], bend meandering ...

[1] We compare morphologies of drainage basins on Mars and Earth in order to confine the formation process ofMartian valley networks. Basins on both planets are computationally extracted from digital topography. Integral-geometry methods are used to represent each basin by a circularity function that encapsulates its internal structure. The shape of such a function is an indicator of the style ...

Introduction: Impact crater degradation provides a powerful tool to analyze past Martian hydrological evolution. Previous studies concluded that large impact craters were strongly degraded during early Martian history, whereas younger craters are only weakly degraded [1]. Degraded craters are therefore one of the main lines of evidence for a warmer climate on early Mars. Global altimetry and re...

The migration architecture of the rivers has a significant influence on a wide range of disciplines. For example, the Geomorphology, the hydraulic, the climate, hydrologic and topographic characteristics and so on. Previous studies relating to the issue of fluvial migration include the literature of river channel patterns [1,2], deposition transport and grain size sorting [36], bend meandering ...

A 500 km long network of valleys extends from Herschel crater to Gale, Knobel, and Sharp craters. The mineralogy and timing of fluvial activity in these watersheds provide a regional framework for deciphering the origin of sediments of Gale crater’s Mount Sharp, an exploration target for the Curiosity rover. Olivine-bearing bedrock is exposed throughout the region, and its erosion contributed t...

■ Abstract Bedrock rivers set much of the relief structure of active orogens and dictate rates and patterns of denudation. Quantitative understanding of the role of climate-driven denudation in the evolution of unglaciated orogens depends first and foremost on knowledge of fluvial erosion processes and the factors that control incision rate. The results of intense research in the past decade ar...

Keyword: Mars, surface Mars, climate Geological processes Observations of Mars from the surface and from orbit suggest that erosion rates over the last 3 Gyr (the Amazonian) have been as slow as 10 5 m/Myr and have been dominated by aeolian processes, while ancient (Noachian) erosion rates may have been orders of magnitude higher due to impact bombardment and fluvial activity. Amazonian-aged gl...