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Employing discrete global grid systems for reproducible data obfuscation [PDF]

open access: yesScientific Data
Archaeological heritage worldwide is threatened through deliberate destruction in particular site looting making the location of archaeological sites potentially sensitive data.
Gino Caspari   +3 more
doaj   +2 more sources

Wāhi, a discrete global grid gazetteer built using linked open data

open access: yesInternational Journal of Digital Earth, 2017
Discrete global grid systems have become an important component of Digital Earth systems. However, previously there has not existed an easy way to map between named places (toponyms) and the cells of a discrete global grid system. The lack of such a tool
Benjamin Adams
doaj   +2 more sources

Multi-resolution topographic analysis in hexagonal Discrete Global Grid Systems

open access: yesInternational Journal of Applied Earth Observations and Geoinformation, 2022
Discrete Global Grid Systems (DGGS) have been increasingly adopted as a standard framework for multi-source geospatial data. Previous research largely studied the mathematical foundation of discrete global grids, developed open-source libraries, and ...
Mingke Li   +2 more
doaj   +3 more sources

General Method for Extending Discrete Global Grid Systems to Three Dimensions

open access: yesISPRS International Journal of Geo-Information, 2020
Geospatial sensors are generating increasing amounts of three-dimensional (3D) data. While Discrete Global Grid Systems (DGGS) are a useful tool for integrating geospatial data, they provide no native support for 3D data.
Benjamin Ulmer   +2 more
doaj   +3 more sources

An optimized hexagonal quadtree encoding and operation scheme for icosahedral hexagonal discrete global grid systems

open access: yesInternational Journal of Digital Earth, 2022
Although research on the discrete global grid systems (DGGSs) has become an essential issue in the era of big earth data, there is still a gap between the efficiency of current encoding and operation schemes for hexagonal DGGSs and the needs of practical
Long Zhao   +4 more
doaj   +2 more sources

EASE-DGGS: a hybrid discrete global grid system for Earth sciences

open access: yesBig Earth Data, 2022
Although we live in an era of unprecedented quantities and access to data, deriving actionable information from raw data is a hard problem. Earth observation systems (EOS) have experienced rapid growth and uptake in recent decades, and the rate at which ...
Jeffery A. Thompson   +4 more
doaj   +2 more sources

Construction of quality evaluation indicator system for diamond discrete global grid systems

open access: yesInternational Journal of Digital Earth, 2023
Although the uniformity of diamond discrete global grid is essential for calculations and searches, geometric deformations increase with the level of divisions.
Fuli Luo   +5 more
doaj   +2 more sources

GIScience research challenges for realizing discrete global grid systems as a Digital Earth

open access: yesBig Earth Data, 2022
Increasing data resources are available for documenting and detecting changes in environmental, ecological, and socioeconomic processes. Currently, data are distributed across a wide variety of sources (e.g.
Majid Hojati   +3 more
doaj   +2 more sources

An open-source web service for creating quadrilateral grids based on the rHEALPix Discrete Global Grid System

open access: yesInternational Journal of Digital Earth, 2020
The foundation of modern Digital Earth frameworks is the Discrete Global Grid System (DGGS). To standardize the DGGS model, the Open Geospatial Consortium (OGC) recently created the DGGS Abstract Specification, which also aims to increase usability and ...
David Bowater, Emmanuel Stefanakis
doaj   +2 more sources

On the isolatitude property of the rHEALPix Discrete Global Grid System

open access: yesBig Earth Data, 2019
Digital Earth frameworks provide a way to integrate, analyze, and visualize large volumes of geospatial data, and the foundation of such frameworks is the Discrete Global Grid System (DGGS).
David Bowater, Emmanuel Stefanakis
doaj   +2 more sources

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