نتایج جستجو برای: geomorphologic

تعداد نتایج: 559  

2002
David M. Mooney

In erosion and sedimentation problems, estimating the range of significant stream flows to include when computing sediment transport can prove challenging in ungauged or under-gauged basins. This paper describes an event-based model incorporating a geomorphologic instantaneous unit hydrograph and stochastic descriptions of peak flows and frequency of storm events from nearby reference watershed...

Journal: :Remote Sensing 2009
Javier De Matías José Juan De Sanjosé Gonzalo López-Nicolás Carlos Sagüés Josechu J. Guerrero

In this paper we present a stereo feature-based method using SIFT (Scale-invariant feature transform) descriptors. We use automatic feature extractors, matching algorithms between images and techniques of robust estimation to produce a DTM (Digital Terrain Model) using convergent shots of a rock glacier.The geomorphologic structure observed in this study is the Veleta rock glacier (Sierra Nevad...

زارع, غلامرضا , شایان, سیاوش , شریفی‌کیا, محمد ,

In this research, geomorphologic landforms of Darab region were identified and their geomorphotourism capability was evaluated. Satellite images, geological and topographic maps and field data were used for identification of geomorphological landforms and then the geomorphotourism capability of mentioned landforms were determined based on Praloong method. The results of this study reveal that t...

Journal: :Cartographica 2005
Byron P. Nakos Vasilis Ch. Mitropoulos

This article presents a review of existing methods for the detection of critical points cited in cartographic and computer science literature. Moreover, a theoretical assessment of algorithm validity with regard to cartographic representation demands is carried out. A method for the detection of critical points using the length ratio (LR) index is introduced, based on geometric principles. Four...

Journal: :The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences 2012

Journal: :caspian journal of environmental sciences 2012
a. a mohammadi

with regard to the importance of instantaneous peak discharge estimation for watershed management study, and due to the lack of and unqualified climatic and hydrologic data for estimation and measurement in countries such as iran, researchers were obliged to establish a link between constant parameters (geomorphologic) and variables (hydrologic) to present models with minimum dependence on clim...

Journal: :JOURNAL OF JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES 2011

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