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

作     者：Majid Hojati Colin Robertson Steven Roberts Chiranjib Chaudhuri 

作者机构：Department of Geography and Environmental StudiesWilfrid Laurier UniversityWaterlooONCanada Coldwater LaboratoryUniversity of SaskatchewanCanmoreABCanada 

出 版 物：《Big Earth Data》 (地球大数据（英文）)

年 卷 期：2022年第6卷第3期

页      面：358-379页

核心收录：

学科分类：08[工学] 081203[工学-计算机应用技术] 0812[工学-计算机科学与技术（可授工学、理学学位）] 0713[理学-生态学] 

基　　金：The authors thank the Global Water Futures research program for funding this work under the Developing Big Data and Decision Support Systems theme. We would also like to thank the anonymous referees for their very helpful and constructive comments. 

主　　题：DGGS discrete global grid systems GIScience Digital Earth 

摘      要：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.***.data silos)and published in a variety of formats,scales,and semantic representations.A key issue,therefore,in building systems that can realize a vision of earth system monitoring remains data integration.Discrete global grid systems(DGGSs)have emerged as a key technology that can provide a common multi-resolution spatial fabric in support of Digital Earth monitoring.However,DGGSs remain in their infancy with many technical,conceptual,and operational challenges.With renewed interest in DGGS brought on by a recently proposed standard,the demands of big data,and growing needs for monitoring environmental changes across a variety of scales,we seek to highlight current challenges that we see as central to moving the field(s)and technologies of DGGS forward.For each of the identified challenges,we illustrate the issue and provide a potential solution using a reference DGGS implementation.Through articulation of these challenges,we hope to identify a clear research agenda,expand the DGGS research footprint,and provide some ideas for moving forward towards a scaleable Digital Earth vision.Addressing such challenges helps the GIScience research community to achieve the real benefits of DGGS and provides DGGS an opportunity to play a role in the next generation of GIS.