The Arctic Permafrost Geospatial Center – a portal for high-quality open access scientific data related to permafrost in the Arctic
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These slides were presented at AGU2018 by Sina Muster from the Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research.
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The Arctic Permafrost Geospatial Center – a portal for high-quality open access scientific data related to permafrost in the Arctic
- 1. Sina Muster, Sebastian Laboor, Birgit Heim, Antonie Haas, Christian Schäfer-Neth, Ingmar Nitze, Annett Bartsch, Guido Grosse An online data portal for open access data related to permafrost in the Arctic
- 2. How APGC came to be • initiated by the ERC PETA-CARB (2013-2018) and the ESA GlobPermafrost (2016-2019) • projects provided initial products to the catalogue with a focus on Earth Observation (EO) applications for permafrost monitoring • disseminate products through an open access data portal to the research community 2
- 3. Data criteria PERMAFROST FOCUS SIGNIFICANCE AND IMPACT OPEN ACCESS QUALITY METADATA 3
- 5. • open source, free software • makes open data websites and manages and publishes collections of data • stores metadata, and presents it on a web interface where users can browse and search this metadata 5
- 6. APGC goalsapgc.awi.de Start Page 8
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- 20. 20 Dataset collections organize large and/or complex datasets.
- 22. tailored to the interests and needs of the permafrost community Why APGC? facilitate discovery, view, dissemination of data and metadata thematic data portal with focus permafrost and geospatial data 2
Hinweis der Redaktion
- APGC is hosted by the Alfred Wegener Institute for Polar and Marine Research initiated by the ERC PETA-CARB (2013-2018) and the ESA Data User Elements (DUE) GlobPermafrost (2016-2019) Projects provided initial products to the catalogue with a focus on Earth Observation (EO) applications for permafrost monitoring Products were based on user requirements and user validation disseminate products through an open access data portal to the users ---------------------------- The European Space Agency has launched the GlobPermafrost initiative (2016-2019) to develop, validate and implement information products to support the research communities and related international organisations like IPA and CliC in their work on understanding permafrost better by integration of Earth Observation data. Goals: develop, validate and implement information products to support the research communities and related international organisations Goals Globpermafrost (ESA DUE) • Develop mid to long term scenarios for polar and mountain permafrost monitoring • Contribute to new scientific results in the domain of climate change, climate modelling and hydrological modelling Integrate the latest EO technology with state-of-the-art ground based measurements and models
- What are our data criteria? Permafrost focus: data should directly or indirectly measure permafrost characteristics Data should be of high significance and impact to permafrost research. Data should be critical to the progress of permafrost research, overcome barriers, create links between disciplines etc. So we are not just merely looking for data from one climate station in the Arctic but from a networks of stations. We do not want just remote sensing imagery of permafrost landscapes but products derived from that imagery We are looking for synthesized data, for data with broad spatial coverage, data that closes knowledge gaps Data has to be open access, i.e. it is archived in a long-term data repository Data should have accuracy assessment. And data should have extensive metadata that adequately describes the data processing and data product.
- How is the catalogue built? In the center of the APGC architecture we have of course the data catalogue that provides data documentation The catalogue then links to an external data repository where the data is stored in a long-term archive and given a DOI. Most data is also embedded in an external WebGIS where users can explore the data in detail before downloading it.
- We use the software CKAN to run the data portal. CKAN is designed to make open data websites and managing and publishing collections of data. CKAN uses its internal model to store metadata about the different records, and presents it on a web interface that allows users to browse and search this metadata. CKAN is open source, free software. This means that you can use it without any license fees, and you retain all rights to the data and metadata you enter. It is built with Python on the backend (programmed) and Javascript on the frontend. Its database engine is PostgreSQL and its search is powered by SOLR. It also offers a powerful API – application programming interface – so that you can built third-party applications and services around it.
- What does this look like on the website? Here you see a screenshot of the APGC startpage You have here a data search area, links to dataset collections and featured projects.
- Here you have different metadata field to describe your data. And these can be tailored to your needs.
- Here you have different metadata field to describe your data. And these can be tailored to your needs.
- Data collections/groups: a way to organise large and/or complex datasets
- There are so many data repostitories for earth science data but also for Arctic data – why yet another portal to access data? 1) The permafrost community wanted a thematic data portal, to have all the permafrost data relevant to ongoing research activities conveniently located in one place. 2) APGC is tailored to the interests and needs of the permafrost research community 3) it facilitates discovery, view, dissemination, of data and metadata