European Environment Agencyand

Linked Environment Dataand

how we are implementingSEIS

Søren Roug

The current situation

• Find dataset

The current situation

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The current situation

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• Import it

The current situation

• Find dataset

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• Import it

• Clean it

The current situation

• Find dataset

• Download it

• Import it

• Clean it

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Vision statement

If SEIS is only about making data public and not the rest, we wouldn’t get much

benefit!

We want to eliminate all steps but the last!

...And we’re going to use Linked Data technology to do it

Solution to the data format problem

• In addition to the HTML for human eyes we’re asking for a new format called RDF that machines can understand

• It is a modernisation of CSV, Excel and all the other data dump formats

• This is all we ask a producer to provide... and some metadata

No more searching on foreign sites

• The remote nodes provide lists of their datasets

• Called manifests or semantic sitemaps• Also in RDF format• Controlled vocabulary URLs in metadata

Use any of: GEMET / AgroVoc / DBPedia / EuroVoc / UMTHES – we have created equivalence links between them

• The manifests are loaded into our Linked Data search engine

Downloading made easy!

Click on the title to see if it is in the database

Downloading made easy

Seconds later...Seconds later...

Status

• EEA has deployed two search engines called Content Registry and Semantic Data Service that import all lists and all data• Content Registry is for Reportnet deliveries• Semantic Data Service is for published

datasets

• We have created RDF of several data sets: Reportnet, GEMET, EUNIS, ROD, ITIS, NUTS, NACE etc.

• We can also load Eurostat SDMX data via the LATC project

Queries

Example of SPARQL queryFuture prospects for the European otter

(From Reportnet)

PREFIX art17: <http://rdfdata.eionet.europa.eu/art17/ontology/>PREFIX eea: <http://rdfdata.eionet.europa.eu/eea/ontology/> SELECT ?country ?region ?future WHERE {[] art17:forSpecies <http://eunis.eea.europa.eu/species/1435>; art17:hasRegionalReport ?report.?report art17:conclusion_future ?future; art17:forCountry ?curl; art17:region ?bgregion.?bgregion eea:name ?region.?curl eea:name ?country} ORDER BY ?country ?region

Result: Future of the European otter

country region future

Austria Alpine Inadequate (U1)

Austria Continental Inadequate (U1)

Belgium Atlantic Bad (U2)

Belgium Continental Bad but improving (U2+)

Czech Republic Continental Favourable (FV)

Czech Republic Pannonian Favourable (FV)

Estonia Boreal Favourable (FV)

Comparing data: Where do EUNIS and ITIS not agree on naming?

PREFIX e: <http://eunis.eea.europa.eu/rdf/species-schema.rdf#>PREFIX itis: <http://eunis.eea.europa.eu/rdf/schema.rdf#>PREFIX dwc: <http://rs.tdwg.org/dwc/terms/> SELECT ?eunisname ?eunisauthor ?itisname ?itisauthor ?usage WHERE { ?eunisurl e:validName 1; e:sameSynonym ?itisurl; e:binomialName ?eunisname; dwc:scientificNameAuthorship ?eunisauthor. ?itisurl itis:nameUsage "invalid",?usage; itis:completename ?itisname; itis:hasAuthor ?auurl. ?auurl itis:shortAuthor ?itisauthor}

Results

eunisname eunisauthor itisname itisauthor usage

Chondrocladia alaskensis

Lambe,1900 Chondrocladia alaskensis

Lambe 1895 invalid

Myxilla parasitica (Lambe,1900) Myxilla parasitica Lambe 1893 invalid

Hymedesmia primitiva

Lundbeck,1910 Hymedesmia primitiva

Lundbeck 1910 invalid

Asbestopluma lycopodium

(Levinsen,1886) Asbestopluma lycopodium

Levinsen 1886 invalid

Esperiopsis rigida

Lambe,1900 Esperiopsis rigida Lambe 1893 invalid

Cordylophora lacustris

Allman, 1844 Cordylophora lacustris

Allman 1844 invalid

Visualisations

Water use per NUTS level 2 in 2007Top 20

Combination of twoEurostat SDMX datasets

PREFIX qb: <http://purl.org/linked-data/cube#>PREFIX e: <http://ontologycentral.com/2009/01/eurostat/ns#>PREFIX sdmx-measure: <http://purl.org/linked-data/sdmx/2009/measure#>PREFIX skos: <http://www.w3.org/2004/02/skos/core#>PREFIX g: <http://eurostat.linked-statistics.org/ontologies/geographic.rdf#>PREFIX dataset: <http://eurostat.linked-statistics.org/data/>

SELECT ?nuts2 SUM(xsd:decimal(?obsvalue)) AS ?population ?wateruse xsd:decimal(?wateruse)*1000000/SUM(xsd:decimal(?obsvalue)) AS ?percapitaWHERE { ?observation qb:dataset dataset:demo_r_pjanaggr3 ; e:time <http://eurostat.linked-statistics.org/dic/time#2007>; e:age <http://eurostat.linked-statistics.org/dic/age#TOTAL>; e:sex <http://eurostat.linked-statistics.org/dic/sex#T>; e:geo ?ugeo; sdmx-measure:obsValue ?obsvalue. ?ugeo g:hasParentRegion ?parent. ?parent g:code ?nuts2. ?wuregion qb:dataset dataset:env_n2_wu ; e:geo ?parent; e:cons <http://eurostat.linked-statistics.org/dic/cons#W18_2_7_2>; e:time <http://eurostat.linked-statistics.org/dic/time#2007>; sdmx-measure:obsValue ?wateruse.} GROUP BY ?nuts2 ?wateruse ORDER BY DESC(?percapita) LIMIT 20

GHG per capita 1990-2009

PREFIX qb: <http://purl.org/linked-data/cube#>PREFIX e: <http://ontologycentral.com/2009/01/eurostat/ns#>PREFIX sdmx-measure: <http://purl.org/linked-data/sdmx/2009/measure#>PREFIX skos: <http://www.w3.org/2004/02/skos/core#>PREFIX g: <http://eurostat.linked-statistics.org/ontologies/geographic.rdf#>PREFIX dataset: <http://eurostat.linked-statistics.org/data/>

SELECT ?country ?year ?population ?ghgtotal xsd:decimal(?ghgtotal)*1000/(xsd:decimal(?population)) AS ?percapitaFROM <http://eurostat.linked-statistics.org/data/demo_pjanbroad.rdf>FROM <http://eurostat.linked-statistics.org/data/env_air_gge.rdf>FROM <http://semantic.eea.europa.eu/home/roug/eurostatdictionaries.rdf>WHERE { ?popobs qb:dataset dataset:demo_pjanbroad ; e:time ?uyear; e:freq <http://eurostat.linked-statistics.org/dic/freq#A>; e:age <http://eurostat.linked-statistics.org/dic/age#TOTAL>; e:sex <http://eurostat.linked-statistics.org/dic/sex#T>; e:geo ?ucountry; sdmx-measure:obsValue ?population. ?ghgobs qb:dataset dataset:env_air_gge ; e:geo ?ucountry; e:time ?uyear; e:airsect <http://eurostat.linked-statistics.org/dic/airsect#TOT_X_5>; sdmx-measure:obsValue ?ghgtotal. ?ucountry skos:prefLabel ?country. ?uyear skos:prefLabel ?year} ORDER BY ?country ?year

The end

Søren RougEuropean Environment Agency

Soren.Roug@eea.europa.eu