Heliophysics Events Knowledgebase for FAIR and citable data
Abstract
The Heliophysics Events Knowledgebase (HEK) began full operations in 2010 in support of the Solar Dynamics Observatory (SDO) with the purpose of helping researchers navigate the daily 2TB flood of data from its 3 instruments. It was built along the lines of what is now known as FAIR (Findable, Accessible, Interoperable, Reusable) principles prior to their codification in 2016 and anticipated the need for improved data citation. The HEK consisted of three main components, along with the associated hardware and software infrastructure: an automated Event Detection System (EDS) for identifying features and events in the (primarily) SDO data stream; the Heliophysics Event Registry (HER) for capturing the metadata extracted by the EDS; and the Heliophysics Coverage Registry (HCR) for tracking subsets of the SDO datasets requested by users. The infrastructure underlying the HER and HCR had previously been prototyped as the Hinode Observation system for the Hinode/Solar-B mission; it was based on an implementation of the VOEvent XML standard developed by the International Virtual Observatory Alliance (IVOA). The HEK team spent considerable effort to design the HEK to be an expandable community resource. The HER can support new event classes, data sources, human annotators, and algorithms, and provides tools to make unique IVOA Resource Identifiers (IVORNs) for each entry which serve a similar role to Digital Object Identifiers (DOIs). It support relations and citations between entries such as "hypotheses" or meta-events connecting other HER events as well as integrate search capabilities across both registries simultaneously. Here we demonstrate the HEK aligns with FAIR principles and highlight our recent efforts and plans to enable fuller adaptation of FAIR principles and improved its support for data citation.
- Publication:
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44th COSPAR Scientific Assembly. Held 16-24 July
- Pub Date:
- July 2022
- Bibcode:
- 2022cosp...44.3491H