[1] Fresh gully-like features on Mars strongly suggest that fluid flowed on the surface in the recent past. Here we consider the possibility that CO2 vapor-supported flows formed the gullies. We find that neither condensed CO2 nor CO2 clathrate hydrate are likely to accumulate in significant quantities in the Martian crust. In addition, if condensed CO2 were present under lithostatic pressures,...

Abstract Gully mapping techniques successfully identify gullies over a large range of breadths and depths in complex landscapes but practices for estimating gully volumes need further development. gap-interpolation estimation volume does not often factor landscape microtopography the generation new surface. These approaches can thus overestimate classical volumes, averaging depressions, or unde...

Introduction: Martian gullies are defined by [1] to be slope features comprised of an upslope alcove, a midslope channel, and a downslope depositional fan. Due to their relative youth and similarities to waterrelated features on Earth, the Martian gullies have attracted much attention since their discovery by the Mars Orbiter Camera [1]. Many erosional agents for the gullies have been proposed ...

Gullies are landforms with specific patterns of shape, topography, hydrology, vegetation, and soil characteristics. Remote sensing products (TanDEM-X, Sentinel-1, Sentinel-2) serve as inputs into an iterative algorithm, initialized using a micro-mapping simulation training data, to map gullies in the northwestern Namibia. A Random Forest Classifier examines pixels similar characteristics pool u...

erosion is one of the important social-economic problems in iraniancatchments that have been posed by surface water vastness and runoff production. so, thestudy of water resources, soil erosion and effective factors is of high importance. gullyerosion also extends in many parts of iran and its study particularly in viewpoint ofsediment yield is therefore very important and should be taken into ...

Gully Land Consolidation (GLC) is a proven method to create farmlands and increase crop yields in the Loess Hilly Region, China. However, GLC influences phreatic water transformation might cause disasters, such as salinization swamping. For exploring influence of on mitigating series indoor experiments were conducted artificial rainfall hall. Then, we simulated patterns under more conditions wi...

the problems of land degradation and soil loss are among the major problems of watersheds in iran. for erosion andsediment estimation one can use statistical and empirical methods. for doing this, land unit map and the map of effectivefactors should be prepared. for erosion and sediment estimation one can use statistical and empirical methods. however,these empirical methods are usually time co...

Introduction: The discovery of youthful gullies on Mars [1] provided strong evidence for short-duration flow of liquid water within the last several million years, an era not generally considered conducive to the stability of liquid water at the surface [2]. Given average conditions below the melting point for all of Mars and the apparent correlation between bed-rock layering and gully alcoves,...