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Building the World Wide Hypermap(WWH)with a RESTful architecture

International Journal of Digital Earth 2014年第3期7卷 175-193页

作者： joan maso Xavier Pons Alaitz Zabala Center for Ecological Research and Forestry Applications(CREAF) Universitat Autònoma de BarcelonaBarcelonaSpain Department of Geography Universitat Autònoma de BarcelonaBarcelonaSpain

The hypermap concept was introduced in 1992 as a way to hyperlink geospatial features to text,multimedia or other geospatial features.Since then,the concept has been used in several applications,although it has been found to have some limitations.On the other hand,Spatial Data Infrastructures(SDIs)adopt diverse and heterogeneous service oriented architectures(SOAs).They are developed by different standard bodies and are generally disconnected from mass market web solutions.This work expands the hypermap concept to overcome its limitations and harmonise it with geospatial resource oriented architecture(ROA),connecting it to the semantic web and generalising it to the World Wide Hypermap(WWH)as a tool for building a single‘Digital Earth’.Global identifiers,dynamic links,link purposes and resource management capabilities are introduced as a solution that orchestrates data,metadata and data access services in a homogeneous way.This is achieved by providing a set of rules using the current Internet paradigm formalised in the REpresentational State Transfer(REST)architecture and combining it with existing Open Geospatial Consortium(OGC)and International Organization for Standardization(ISO)standards.A reference implementation is also presented and the strategies needed to implement the WWH,which mainly consist in a set of additions to current Geographic Information System(GIS)products and a RESTful server that mediates between the Internet and the local GIS applications.

关键词： SDI URI standards hypermap RESTful

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GEOEssential–mainstreaming workflows from data sources to environment policy indicators with essential variables

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International Journal of Digital Earth 2020年第2期13卷 322-338页

作者： Anthony Lehmann Stefano Nativi Paolo Mazzetti joan maso Ivette Serral Daniel Spengler Aidin Niamir Ian McCallum Pierre Lacroix Petros Patias Denisa Rodila Nicolas Ray Grégory Giuliani enviroSPACE Institute for Environmental SciencesUniversity of GenevaGenevaSwitzerland Dpt.F.-A.Forel for Environment and Water Sciences Faculty of SciencesUniversity of GenevaGenevaSwitzerland National Research Council of Italy–Institute of Atmospheric Pollution Research Sesto Fiorentino(FI)Italy CREAF Grumets research group CREAF.Edifici C.Universitat Autònoma de BarcelonaBellaterraSpain Remote Sensing Section Helmholtz Center Potsdam GFZ German Research Center for GeosciencesPotsdamGermany Senckenberg Biodiversity and Climate Research Institute Senckenberg Gesellschaft für NaturforschungFrankfurt am MainGermany International Institute for Applied Systems Analysis LaxenburgAustria GRID-Geneva Institute for Environmental SciencesUniversity of GenevaGenevaSwitzerland School of Surveying Engineering Aristotle University of ThessalonikiThessalonikiGreece GeoHealth Group Institute of Global HealthFaculty of MedicineUniversity of GenevaGenevaSwitzerland

When defining indicators on the environment,the use of existing initiatives should be a priority rather than redefining indicators each time.From an Information,Communication and Technology perspective,data interoperability and standardization are critical to improve data access and exchange as promoted by the Group on Earth Observations.GEOEssential is following an end-user driven approach by defining Essential Variables(EVs),as an intermediate value between environmental policy indicators and their appropriate data sources.From international to local scales,environmental policies and indicators are increasingly percolating down from the global to the local agendas.The scientific business processes for the generation of EVs and related indicators can be formalized in workflows specifying the necessary logical steps.To this aim,GEOEssential is developing a Virtual Laboratory the main objective of which is to instantiate conceptual workflows,which are stored in a dedicated knowledge base,generating executable workflows.To interpret and present the relevant outputs/results carried out by the different thematic workflows considered in GEOEssential(i.***.biodiversity,ecosystems,extractives,night light,and food-water-energy nexus),a Dashboard is built as a visual front-end.This is a valuable instrument to track progresses towards environmental policies.

关键词： SDGs environmental policies essential variables earth observation knowledge base workflows virtual research environment

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Developing food,water and energy nexus workflows

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International Journal of Digital Earth 2020年第2期13卷 299-308页

作者： Ian McCallum Carsten Montzka Bagher Bayat Stefan Kollet Andrii Kolotii Nataliia Kussul Mykola Lavreniuk Anthony Lehmann joan maso Paolo Mazzetti Aline Mosnier Emma Perracchione Mario Putti Mattia Santoro Ivette Serral Leonid Shumilo Daniel Spengler Steffen Fritza IIASA LaxenburgAustria FZJ Forschungszentrum Juelich GmbHJuelichGermany SRI Space Research InstituteKievUkraine KPI National Technical University of UkraineIgor Sikorsky Kyiv Polytechnic InstituteKievUkraine Institute of Environmental Sciences UNIGEUniversity of GenevaGenevaSwitzerland CREAF BarcelonaSpain CNR National Research Council of ItalyFlorenceItaly Department of Mathematics UNIPDUniversity of PadovaPadovaItaly GFZ Helmholtz Centre PotsdamPotsdamGermany

There is a growing recognition of the interdependencies among the supply systems that rely upon food,water and energy.Billions of people lack safe and sufficient access to these systems,coupled with a rapidly growing global demand and increasing resource constraints.Modeling frameworks are considered one of the few means available to understand the complex interrelationships among the sectors,however development of nexus related frameworks has been limited.We describe three opensource models well known in their respective domains(i.e.TerrSysMP,WOFOST and SWAT)where components of each if combined could help decision-makers address the nexus issue.We propose as a first step the development of simple workflows utilizing essential variables and addressing components of the above-mentioned models which can act as building-blocks to be used ultimately in a comprehensive nexus model framework.The outputs of the workflows and the model framework are designed to address the SDGs.

关键词： Food water energy nexus modeling workflows modelframework essential variables SDGs

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