This paper explores a methodology for quantifying the uncertainty of DEMs created by digitising topographic maps. The origins of uncertainty in DEM production were identified and examined. The uncertainty of DEM data was quantified by computing a vector total of Root Mean Square Error (RMSE) from the source map, sampling and measurement errors, and the interpolation process. Distributional meas...

Glacial landforms are a significant element of landscape in many regions Earth. The increasing availability high-resolution digital elevation models (DEMs) provides an opportunity to develop automated methods glacial exploration and classification. In this study, we aimed to: 1) identify based on DEM datasets; 2) determine relevant geomorphometric spectral parameters object-based features for t...

The mapping with the high resolution satellite image instead of aerial images is one of the most important applications in the field of remote sensing. The purpose of this study is to investigate the possibility for generating the thematic maps such as digital map, ortho-rectified image, and Digital Elevation Model (DEM) using the second KOrea Multi-Purpose SATellite (KOMPSAT-2) stereo dataset....

the objective of this study is evaluation of topographic wetness index (twi) using attraction model in northern of fars province. the first attraction model was used to enhance the spatial resolution of digital elevation model (dem). in this research to estimate of value of sub-pixels neighboring pixels, touching and quadrant neighboring models were used. after manufacturing output images for s...

The Indian pharmaceutical market is swamped with many branded and generic drugs which look-alike and sound-alike. These are a nightmare for healthcare professionals who deal with them. These drugs overlap in strength, dosage, indications, and storage conditions and packaging as well. The risks due to look-alike, sound-alike drug names result when a pharmacist or healthcare professional accident...

to determine the potential habitat of two rangeland species of salsola rigidaand agropyron trichophorum in qasr-e-shirin, iran, geographic information systems(gis) and remote sensing (rs) techniques were used. at first, several maps (vegetationcover and land uses maps and thematic maps of various organizations) were collected orprepared. for digitizing geology, vegetation and conventional state...

A digital elevation model (DEM) is a simple representation of a surface in 3 dimensional way with height as the third dimension along with x and y in rectangular axes. DEM has wide applications in various areas like disaster management, hydrology and water management, geomorphology and in urban development. Valuable information about a terrain can be inferred by exploiting a DEM in proper way. ...

The aim of this study is to determine runoff depth of the Van Lake basin by using remote sensing and geographic information system (GIS) integration. While determining the results we used various data sets such as Landsat satellite image, 1:25000 standard topographic map, and soil map data. Standard 1:25000 topographic maps were used to derive digital elevation model. Sub-basin area and physica...