Semantically-Enabled
Environmental Data Discovery and Integration:
Demonstration Using the Icelandic Volcano Use Case

Tat...
Environmental Research
Example Case Study

Icelandic Volcano Eruption [6]
What was the impact of the eruption of the Icelandic Volcano
(Eyjafjall...
What data can contribute to the research?

?	
  

?	
  

SIOS	
  

?	
  
AURORA	
  BOREALIS	
  

EMSO	
  

?	
  

?	
  

?...
Technological and Structural Data Heterogeneity

CSV	
  
FTP	
  catalogues	
  
Ocean	
  
temperature	
  
EURO-­‐ARGO	
  

...
Semantic Data Heterogeneity

hourly	
   ppm	
  
measurements	
  
level	
  2	
  
flask	
  

CSV	
  
FTP	
  catalogues	
  
Oc...
Outline

1

Motivation

2

Environmental Data Discovery

3

Environmental Data Integration
Linked Data Approach to Environ...
Environmental Data Discovery
Approach
discover data through a single harmonized metadata catalogue
enable semantic data di...
Outline

1

Motivation

2

Environmental Data Discovery

3

Environmental Data Integration
Linked Data Approach to Environ...
Linked Environmental Data
Linked Data [13]
→ publish data not documents!

Environmental Data
→ datasets with observations
...
Atmospheric Measurements (ICOS) [14]

Dataset “CO2 concentration measured by Mace Head”

Dimensions:
Time
Geospatial locat...
Ocean Monitoring (Euro-Argo) [15]

Dimensions

Observations

Dataset
Ash Cloud Dynamics (ACTRIS) [16]

Dimensions

Observations

Dataset
Related Work
RDF Data Cube [17] based approaches
Linked Environmental Data [1]
The ACORN-SAT Linked Climate Dataset [2]
A ...
But what about semantic data interoperability?
Question
Can we find generic concepts to capture domain semantics of
environ...
ENVRI vocabulary [18] (based on OGC O&M [19])

Location

Time
Feature of
Interest
has Feature of Interest
has Time
has Pro...
Outline

1

Motivation

2

Environmental Data Discovery

3

Environmental Data Integration
Linked Data Approach to Environ...
Demonstration

Data
ICOS CO2 concentration, Euro-Argo - ocean temperature
35 collections, 10.520 observations, 136.556 RDF...
Queries

1: query for individual and subsets of observations
Retrieve all the observations for the days of the Volcano eru...
Queries

1: query for individual and subsets of observations
Retrieve all the observations for the days of the Volcano eru...
Conclusion

→ data discovery through a harmonized metadata catalogue based on
the geospatial metadata model
→ fine-grain re...
Conclusion

→ data discovery through a harmonized metadata catalogue based on
the geospatial metadata model
→ fine-grain re...
Questions?

Thank you!

→ ENVRI portal http://portal.envri.eu
→ more about Linked Environmental Data
http://staff.science....
References I
R¨ther, M., Fock, J., and Hubener, J.: Linked Environmental Data. 24th
u
International Conference on Informat...
References II
State of progress in the development of guidelines to express elements of the
Infrastructure for Spatial Inf...
References III

The Integrated Carbon Dioxide System (ICOS), Atmospheric Measurements
System https://icos-atc-demo.lsce.ip...
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Semantically-Enabled Environmental Data Discovery and Integration: Demonstration Using the Iceland Volcano Use Case

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This presentation is about a framework for semantically-enabled data discovery and integration across multiple Earth science disciplines. Data harmonization was based on the principles of Linked Data. Previous works define the Data Cube extensions which are relevant to certain Earth science disciplines. To provide a generic and domain independent solution, we propose an upper level vocabulary (the ENVRI vocabulary) that allows us to express domain specific information at a higher level of abstraction.
From a human viewpoint we provide an interactive Web based user interface for data discovery and integration across multiple research infrastructures (http://portal.envri.eu). The system is demonstrated on a use case of the Iceland Volcano’s eruption on April 10, 2010.

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Semantically-Enabled Environmental Data Discovery and Integration: Demonstration Using the Iceland Volcano Use Case

  1. 1. Semantically-Enabled Environmental Data Discovery and Integration: Demonstration Using the Icelandic Volcano Use Case Tatiana Tarasova 1 Massimo Argenti 1 ISLA, 2 Maarten Marx University of Amsterdam 2 European Space Agency October 7, 2013 System description papers, KESW 2013 1
  2. 2. Environmental Research
  3. 3. Example Case Study Icelandic Volcano Eruption [6] What was the impact of the eruption of the Icelandic Volcano (Eyjafjallaj¨kull) in 2010 on the environment? o
  4. 4. What data can contribute to the research? ?   ?   SIOS   ?   AURORA  BOREALIS   EMSO   ?   ?   ?   EUFAR-­‐COPAL   LIFEWATCH   EISCAT-­‐3D   EPOS   EURO-­‐ARGO   IAGOS-­‐ERI   ?   ICOS  ATC  
  5. 5. Technological and Structural Data Heterogeneity CSV   FTP  catalogues   Ocean   temperature   EURO-­‐ARGO   ?   NetCDF   Authorized  IP  access   Atmospheric   measurements   ICOS  ATC  
  6. 6. Semantic Data Heterogeneity hourly   ppm   measurements   level  2   flask   CSV   FTP  catalogues   Ocean   temperature   EURO-­‐ARGO   plaBorm   good  quality   ?   float  trajectories   NetCDF   Authorized  IP  access   Atmospheric   measurements   ICOS  ATC  
  7. 7. Outline 1 Motivation 2 Environmental Data Discovery 3 Environmental Data Integration Linked Data Approach to Environmental Data Integration Demonstration Using the Icelandic Volcano Case Study
  8. 8. Environmental Data Discovery Approach discover data through a single harmonized metadata catalogue enable semantic data discovery through semantic tagging of datasets Implementation ENVRI portal http://portal.envri.eu OpenSearch [11] based catalogue 1350 data series, 288.971 triples stored in SESAME [12] geospatial metadata model that extends the INSPIRE guidelines [7] with richer semantics http://portal.genesi-dec.eu/news/?id=117 semantic tagging against a set of the Earth Science vocabularies (GCMD [8], SBA [9], GEMET [10])
  9. 9. Outline 1 Motivation 2 Environmental Data Discovery 3 Environmental Data Integration Linked Data Approach to Environmental Data Integration Demonstration Using the Icelandic Volcano Case Study
  10. 10. Linked Environmental Data Linked Data [13] → publish data not documents! Environmental Data → datasets with observations Linked Environmental Data → publish observations not datasets! → fine-grain representation of environmental data will bring new opportunities to query and integrate environmental data at the level of single observations
  11. 11. Atmospheric Measurements (ICOS) [14] Dataset “CO2 concentration measured by Mace Head” Dimensions: Time Geospatial location Unit of Measure Observed Phenomenon … Observation “CO2 concentration in the air Measured by Mace Head on 2010-01-05 was 392.011”
  12. 12. Ocean Monitoring (Euro-Argo) [15] Dimensions Observations Dataset
  13. 13. Ash Cloud Dynamics (ACTRIS) [16] Dimensions Observations Dataset
  14. 14. Related Work RDF Data Cube [17] based approaches Linked Environmental Data [1] The ACORN-SAT Linked Climate Dataset [2] A Linked Data Framework for Publishing the UK Environmental Data [4] Data Cube: core model Observa2on   has dataset Dataset  Structure   Dataset   has structure has dimension Dimension  
  15. 15. But what about semantic data interoperability? Question Can we find generic concepts to capture domain semantics of environmental data? Data Cube Extension Observa.on   has dataset Dataset  Structure   Dataset   has structure ... has location has time Loca.on   Time   has Feature of Interest FeatureOfInterest  
  16. 16. ENVRI vocabulary [18] (based on OGC O&M [19]) Location Time Feature of Interest has Feature of Interest has Time has Property has Location has Observed Property Observed Property Observation has Result has procedure Procedure Result
  17. 17. Outline 1 Motivation 2 Environmental Data Discovery 3 Environmental Data Integration Linked Data Approach to Environmental Data Integration Demonstration Using the Icelandic Volcano Case Study
  18. 18. Demonstration Data ICOS CO2 concentration, Euro-Argo - ocean temperature 35 collections, 10.520 observations, 136.556 RDF triples Implementation RDF generation - RDF Data Cube plug-in for Google Refine [5] storage - Virtuoso RDF store access - http://data.politicalmashup.nl/sparql/
  19. 19. Queries 1: query for individual and subsets of observations Retrieve all the observations for the days of the Volcano eruption (from 20 March to 23 June, 2010).
  20. 20. Queries 1: query for individual and subsets of observations Retrieve all the observations for the days of the Volcano eruption (from 20 March to 23 June, 2010). 2: exploit the semantics of the terms of the ENVRI vocabulary What phenomena were measured in 2010 in the area next to the Volcano? What instruments were used to make measurements in 2010 in the area next to the Volcano?
  21. 21. Conclusion → data discovery through a harmonized metadata catalogue based on the geospatial metadata model → fine-grain representation of environmental data enables queries that retrieve and integrate data at the level of single observation instead of pre-defined collections → ENVRI vocabulary enables semantically rich queries
  22. 22. Conclusion → data discovery through a harmonized metadata catalogue based on the geospatial metadata model → fine-grain representation of environmental data enables queries that retrieve and integrate data at the level of single observation instead of pre-defined collections → ENVRI vocabulary enables semantically rich queries Future Work → Alignment between data models for data discovery and data harmonization → Systematic study of the proposed modelling solution
  23. 23. Questions? Thank you! → ENVRI portal http://portal.envri.eu → more about Linked Environmental Data http://staff.science.uva.nl/~ttaraso1/html/envri.html
  24. 24. References I R¨ther, M., Fock, J., and Hubener, J.: Linked Environmental Data. 24th u International Conference on Informatics for Environmental Protection (2010) R¨ther, M., Fock, J., and Hubener, J.: The ACORN-SAT Linked Climate Dataset. u Semantic Web Journal (2013) http://www.semantic-web-journal.net/system/files/swj457.pdf The ENVRI vocabulary http://data.politicalmashup.nl/RDF/vocabularies/envri Shaon, A., Woolf, A., Boczek, R., Rogers, W., and Jackson, M.: An Open Source Linked Data Framework for Publishing Environmental Data under the UK Location Strategy. Proceedings of the Terra Cognita Workshop on Foundations, Technologies and Applications of the Geospatial Web (2011) http://ceur-ws.org/Vol-798/paper6.pdf The Data Cube plug-in for Google Refine http://refine.deri.ie/qbExport 2010 eruptions of Eyjafjallaj¨kull on Wikipedia o http://en.wikipedia.org/wiki/2010_eruptions_of_Eyjafjallaj%C3%B6kull
  25. 25. References II State of progress in the development of guidelines to express elements of the Infrastructure for Spatial Information in the European Community (INSPIRE) metadata implementing rules using ISO 15836 (Dublin Core). European Commission (2008) http://inspire.jrc.ec.europa.eu/reports/ ImplementingRules/metadata/MD_IR_and_DC_state%20of%20progress.pdf The Global Change Master Directory (GCMD) http://gcmd.nasa.gov/ The Societal Benefit Area vocabularies (SBA) http://www.earthobservations.org/ The GEneral Multilingual Environmental Thesaurus (GEMET) http://www.eionet.europa.eu/gemet/ The OpenSearch standard protocol http://www.opensearch.org/ http://www.openrdf.org/ Berners-Lee, T.: Linked data - design issues, 2006. http://www.w3.org/DesignIssues/LinkedData.html
  26. 26. References III The Integrated Carbon Dioxide System (ICOS), Atmospheric Measurements System https://icos-atc-demo.lsce.ipsl.fr/ Euro-Argo http://www.argodatamgt.org/ The Aerosols, Clouds, and Trace Gasses Research Infrastructure Network (ACTRIS) www.actris.net The Data Cube vocabulary http://www.w3.org/TR/2013/WD-vocab-data-cube-20130312/ The ENVRI vocabulary. http://data.politicalmashup.nl/RDF/vocabularies/envri Geographic Information: Observations and Measurements. OGC Abstract Specification http://www.opengeospatial.org/standards/om

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