Results 11 to 20 of about 318,704 (275)

Discrete global grid system flow routing datasets in the Amazon and Yukon basins [PDF]

open access: goldEarth System Science Data
Discrete global grid systems (DGGS) are emerging spatial data structures widely used to organize geospatial datasets across scales. While DGGS have found applications in various scientific disciplines, including atmospheric science and ecology, their ...
C. Liao   +4 more
doaj   +2 more sources

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

open access: greenInternational 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

Time-series analysis of Sentinel-1/2 data for flood detection using a discrete global grid system and seasonal decomposition

open access: goldInternational Journal of Applied Earth Observations and Geoinformation, 2023
Automated flood detection using earth observation data is a crucial task for efficient flood disaster management. Current solutions to identify flooded areas usually rely on calculating the difference between new observations and static, pre-calculated ...
Florian Fichtner   +5 more
doaj   +2 more sources

Construction of rhombic triacontahedron discrete global grid systems

open access: goldInternational Journal of Digital Earth, 2022
Discrete Global Grid System (DGGS) is a new multi-resolution geospatial data modeling and processing scheme for the digital earth. The icosahedron is commonly regarded as an ideal polyhedron for constructing DGGSs with small distortions; however, the ...
Xiaoyu Liang   +5 more
doaj   +2 more sources

Modelling Offset Regions around Static and Mobile Locations on a Discrete Global Grid System: An IoT Case Study [PDF]

open access: goldISPRS International Journal of Geo-Information, 2020
With the huge volume of location-based point data being generated by Internet of Things (IoT) devices and subsequent rising interest from the Digital Earth community, a need has emerged for spatial operations that are compatible with Digital Earth ...
David Bowater, Monica Wachowicz
doaj   +2 more sources

Area and shape distortions in open-source discrete global grid systems

open access: goldBig Earth Data, 2022
A Discrete Global Grid System (DGGS) is a type of spatial reference system that tessellates the globe into many individual, evenly spaced, and well-aligned cells to encode location and, thus, can serve as a basis for data cube construction.
Alexander Kmoch   +3 more
doaj   +2 more sources

Regional-Scale Equidistance Optimizing Method Considering the Equidistance Patterns of Discrete Global Grid Systems

open access: goldISPRS International Journal of Geo-Information
The Discrete Global Grid System (DGGS) provides a foundational framework for the digital Earth, where uniform intercell distances are essential for accurate numerical simulations.
Fuli Luo   +4 more
doaj   +2 more sources

ITACaRT: An Equal-Area Parallelogram Discrete Global Grid System for Terrestrial Cadastral Mapping—Designed for Usability and Blockchain Integration

open access: diamondRevista Brasileira de Cartografia
Typically, the modernization of Land Administration Systems (LAS) concentrates on overarching aspects and seldom investigates the spatial infrastructure that underpins it, thereby presenting challenges for the integration of geospatial data.
Israel Nunes da Silva   +2 more
doaj   +3 more sources

Encoding and operation scheme for the rhombic triacontahedron aperture 4 hexagonal discrete global grid system [PDF]

open access: goldInternational Journal of Digital Earth
Discrete Global Grid System (DGGS) is a hierarchical structure with seamless global coverage, supporting processing and analysis of heterogeneous geospatial data.
Junjie Ding   +6 more
doaj   +2 more sources

A Precision Evaluation Index System for Remote Sensing Data Sampling Based on Hexagonal Discrete Grids

open access: yesISPRS International Journal of Geo-Information, 2021
With the rapid development of earth observation, satellite navigation, mobile communication, and other technologies, the order of magnitude of the spatial data we acquire and accumulate is increasing, and higher requirements are put forward for the ...
Yue Ma   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy