Abstract. Height models are a fundamental part of the geo-information required for various applications. The determination height by aerial photogrammetry, LiDAR or space images is time-consuming and expensive. For with large area coverage, UAVs not economic. freely available ASTER GDEM-3, SRTM, AW3D30 TDM90 can meet requirements.With exception ASTER-GDEM-3, which cannot compete other, digital ...

Morphometric analysis is essential in evaluating the geomorphological development and hydrological characteristics of rivers valley basins. Several studies used different DEM data to evaluate elevation accuracy or their impact on measurements limited morphometric parameters. The current study was carried out Chai Dakuk River basin northeastern part Iraq. bounded by latitudes 34°44'30"- 35°35'49...

To date, the majority of digital elevation models (DEMs) are generated using photogrammetric methods. Recent remote sensing techniques, such as radar interferometry (InSAR), have also been used to generate high quality DEMs over a great area. Spaceborne high resolution DEMs with almost global coverage, such as SRTM, ACE2 and ASTER-GDEM, were made available to the public in the last few years. T...

Abstract. In 2016, the first processing of semi-global digital surface models (DSMs) utilizing all archives stereo imageries derived from Panchromatic Remote sensing Instrument for Stereo Mapping (PRISM) onboard Advanced Land Observing Satellite (ALOS) was successfully completed. The dataset freely released to public in 30 m grid spacing as ‘ALOS World 3D - 30m (AW3D30)’, which generated its or...

Due to their sensitive reaction to changes in climatic conditions, glaciers have been selected as an essential climate variable (ECV). Although a large amount of ice is located in the Himalayas, this region is yet only sparsely represented in global glacier databases. Accordingly, a sound and comprehensive change assessment or determination of water resources was not yet possible. In this study...