The origin of the martian gullies has been much debated since their discovery by the Mars Orbiter Camera (MOC, Malin, M.C., Edgett, K.S. [2000]. Science 288, 2330–2335). Several previous studies have looked at slope gradients in and around gullies, but none have used Digital Elevation Models (DEMs) from the High Resolution Imaging Science Experiment (HiRISE, McEwen, A.S., and 14 colleagues [200...

Die Energiewende Deutschlands geht mit einer Dezentralisierung der Energie-Erzeugung einher. Verschiedene Dörfer, Gemeinden, Regionsverbünde u. ä. haben es sich zum Ziel gesetzt, von Energie-Importen unabhängig zu werden und sich damit „energieautark“ aufzustellen. Das E-Modell der Energieautarkie beschreibt ein Referenz-Vorgehensmodell für den Aufbau, Betrieb und Abbau von Energieautarkie-Syst...

To date, digital terrain model (DTM) accuracy has been studied almost exclusively by computing its height variable. However, the largely ignored horizontal component bears a great influence on the positional accuracy of certain linear features, e.g., in hydrological features. In an effort to fill this gap, we propose a means of measurement different from the geomatic approach, involving fluid m...

In architectural photogrammetry, convergent geometry has some advantages over normal geometry. One of them is the reduction of the number of images needed for the full coverage of the object. This advantage simplifies network design and increases theoretically the accuracy of the method and internal reliability (Mason, 1994). However, the method has still not been widely used in practice becaus...

Several methods currently exist to efficiently correct topographic effects on the radiance measured by satellites. Most of those methods use topographic information and satellite data at the same spatial resolution. In this study, the 30 m spatial resolution data of the Digital Elevation Model (DEM) from ASTER (Advanced Spaceborne Thermal Emission and Reflection Radiometer) are used to account ...

We present a system for modeling buildings from a single correlation-based Digital Elevation Model (DEM). The model is constructed in two stages. The first stage segments the DEM into planar surface patches that describe the building. The second stage generates the final polygonal model of the building using weak geometric constraints. We use robust estimation methods at different stages of our...

In the wake of increasing flood disasters, there is an increasing use of flood inundation models to assess risks and impacts at different temporal and spatial scales. Assessing the impacts of extreme climatic rainfall events will require developing design rainfall profiles to represent rainfall under different conditions. Rainfall profiles of different return periods were developed using the Fl...

conclusions this study confirms that primary pci revascularization is the best treatment for the acute st elevation mi with brilliant acute result and one- year high survival and acceptable cardiac and non-cardiac complications. studying the effects of using des and bms on long term cardiac mortality, morbidity and need to target vessels revascularization (tvr) shows that performing the pci in ...

abstract limitations of traditional (conventional) soil surveys and improvement of information technology have lead soil surveyors to invent new methods which are generally called digital soil mapping (dsm). the aim of these methods is the prediction of soil classes or soil properties based on easily-available or measuring environmental variables. the objective of this investigation is to study...