Results 41 to 50 of about 1,652,719 (226)
Abstract An accurate geoid has important consequences for many fields such as engineering applications, underground resource exploration, geophysical surveys, etc. Its precise determination relies on two key data sets: gravity measurements and high‐resolution elevation data, both of which are critical for achieving reliable results.
Leyla Cakir
wiley +1 more source
Terrain Factors Induced Slope Instability in CNG 37 – Ghat section, Panthalur, The Nilgiris [PDF]
— Landslides are short-lived phenomena but can cause extraordinary changes in the landscape, destroying life and property. Mitigation and management of natural disasters are important issues.
Mani S. +2 more
doaj +1 more source
Glacier Variations at Xinqingfeng and Malan Ice Caps in the Inner Tibetan Plateau Since 1970
The inner Tibetan Plateau is a glacierized region where glaciers show heterogeneous change. The Xinqingfeng and Malan ice caps are located in this region, and a transition zone exists with shifting influences between the westerlies and Indian summer ...
Zhen Zhang +9 more
doaj +1 more source
Applications of GIS in Flood Control and Crises Management Using Different Sources of DEMs in Al Arish, Sinai, Egypt [PDF]
The aim of this research is to provide an approach to identify the potential routes of water flood in the study area as well as its relevant area of containment (Al Arish, North Sinai, Egypt).
Ahmed Amin +4 more
doaj +1 more source
ABSTRACT Streambank erosion is an important source of sediment to river systems but is difficult to quantify at watershed scales. In this study, high‐resolution Light Detection and Ranging (LiDAR) measurements collected from 2009 and 2020 were used to quantify the difference in land surface elevation that occurred along the fourth and fifth‐order ...
Calvin F. Wolter +3 more
wiley +1 more source
Based on the hourly precipitation data of 3454 stations with dense space in Sichuan Province and DEM (Digital Elevation Model) data with horizontal accuracy of 30 m, the temporal and spatial distribution characteristics of extreme hourly precipitation in
Qiuxue ZHOU, Lan KANG
doaj +1 more source
The approach for combining dem acquisitions for the TanDEM-X dem mosaic [PDF]
For the global TanDEM-X DEM the whole world will be acquired by at least two coverages. Thereby on the one hand phase unwrapping errors are reduced by applying the dual-baseline method and on the other hand a low noise level is ensured even for difficult areas like forests and steep terrain.
Gruber, Astrid +4 more
openaire +2 more sources
ABSTRACT In this work, a fatigue crack propagation model is proposed using the two‐dimensional discrete element method (DEM). The challenge lies in describing the small progressive fatigue crack growth within a single cycle, which is typically much smaller than the size of the smallest particles, making it difficult to continuously capture the loss of ...
Lei Ma +3 more
wiley +1 more source
Democracy Doesn’t Always Happen Over Night: Regime Change in Stages and Economic Growth [PDF]
We motivate and empirically analyse the idea that democratic regime change is not a dis-crete event but a two-stage process: in the first stage, autocracies enter into an ‘episode’ of political liberalization which can last for years or even decades; in ...
Eberhardt, Markus, Boese, Vanessa
core +2 more sources
Information for individual trees (e.g., position, treetop, height, crown width, and crown edge) is beneficial for forest monitoring and management.
Wei Chen, Haibing Xiang, Kazuyuki Moriya
doaj +1 more source

