نتایج جستجو برای: digital elevation models

تعداد نتایج: 1248315  

2010
David A. Swayne Wanhong Yang A. A. Voinov E. R. Stefanescu

In this paper we study the impact of errors and uncertainties in digital elevation models on the analysis of hazardous mass flows at Galeras volcano in Colombia. The increasing use of computer models and software has made it imperative that the effect of errors in digital elevation models which crucially determine the flow characteristics be quantified. We illustrate in this paper the significa...

Journal: :Remote Sensing 2021

Many biochemical processes and dynamics are strongly controlled by terrain topography, making digital elevation models (DEM) a fundamental dataset for range of applications. This study investigates the quality four pan-Arctic DEMs (Arctic DEM, ASTER ALOS DEM Copernicus DEM) within Kalix River watershed in northern Sweden, with aim informing users about when comparing these DEMs. The assessment ...

Journal: :International Journal of Geographical Information Science 1998

Journal: :IEEE Transactions on Geoscience and Remote Sensing 2002

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