PREFIX rdf: PREFIX rdfs: PREFIX skos: PREFIX owl: PREFIX xsd: PREFIX dcterms: PREFIX dcat: PREFIX dcmitype: PREFIX foaf: PREFIX geo: PREFIX vcard: PREFIX prov: PREFIX odrs: PREFIX sosa: PREFIX sdo: PREFIX ef: PREFIX doo: PREFIX adms: PREFIX : :64d340d7-8f19-49f9-90e0-83d4013e76c2 dcterms:title "Fuel moisture and micro-scale combustion calorimetry data for Calluna vulgaris across the UK, April-May 2023" ; dcterms:identifier "https://catalogue.ceh.ac.uk/id/64d340d7-8f19-49f9-90e0-83d4013e76c2","https://doi.org/10.5285/64d340d7-8f19-49f9-90e0-83d4013e76c2" ; dcterms:bibliographicCitation "Ivison, K., Little, K., Belcher, C.M., Crawford, A.J., Davidson, S.J., Graham, L.J., Kettridge, N. (2026). Fuel moisture and micro-scale combustion calorimetry data for Calluna vulgaris across the UK, April-May 2023. NERC EDS Environmental Information Data Centre. https://doi.org/10.5285/64d340d7-8f19-49f9-90e0-83d4013e76c2" ; dcterms:description "This dataset contains fuel moisture contents and flammability metrics for samples of common heather (Calluna vulgaris) collected across the United Kingdom between 15th April and 20th May 2023. A total of 830 samples were used to measure fuel moisture content (FMC), and 130 of these were also subjected to calorimetric analysis. FMC data were obtained gravimetrically by weighing samples before and after drying. Flammability data were obtained by micro-scale combustion calorimetry, which measures heat release related to flaming combustion of a fuel material. The flammability metrics recorded were the heat release capacity (HRC), peak heat release rate (PHRR), total heat release (THR), and temperature at maximum rate of decomposition (Tmax). These data will contribute to the development of models of fuel moisture variability in UK fuels, and thus refine inputs for fire behaviour modelling, which can inform land management strategies in relation to wildfire risk." ; dcterms:provenance [ a dcterms:ProvenanceStatement ; rdfs:label "Volunteers were requested to collect samples on 19 April 2023, or as close as possible to this date, based on forecasts of dry, fire-prone weather for the UK. At each sampling location, the approximate height of the heather canopy was measured, and live C. vulgaris was clipped from c. 10 plants along a 20 m transect. Samples from each transect were combined in an aluminium tin, sealed with tape to prevent moisture loss, and sent for analysis by priority mail. Samples for fuel moisture analysis only (n = 700) were weighed, dried at 80°C for 48 h, and then reweighed. Samples for calorimetric analysis (n = 130) were analysed using an FAA Micro Calorimeter (Fire Testing Technology Ltd, East Grinstead, UK). Two subsamples of 6.2‒31.1 mg were analysed from each sample. The heating rate of the pyrolysis chamber was set to 3°C s-1, the maximum pyrolysis temperature to 750°C, and the combustion chamber temperature to 900°C. The N₂ flow rate was set to 80 cm³ min-1 and the O₂ flow rate to 20 cm³ min-1. For each flammability metric (HRC, PHRR, THR and Tmax) the mean of the tests for the two subsamples was taken. The remainder of each sample was used to obtain FMC: the sample was weighed, then dried at 50 °C until it reached constant weight. Fuel moisture was defined as: Fuel Moisture = ((wet mass - dry mass) / dry mass) × 100" ] ; dcterms:spatial [ a dcterms:Location ; dcat:bbox "POLYGON((-7.63 50.01, -7.63 58.66, 1.11 58.66, 1.11 50.01, -7.63 50.01))"^^geo:wktLiteral ; ] ; dcterms:temporal [ a dcterms:PeriodOfTime ; dcat:startDate "2023-04-01"^^xsd:date ; dcat:endDate "2023-05-31"^^xsd:date ; ] ; dcat:contactPoint :64d340d7-8f19-49f9-90e0-83d4013e76c2_c0 ; dcterms:publisher ; dcterms:subject , "wildfire", "fuel moisture", "flammability", , , , ; prov:wasGeneratedBy :64d340d7-8f19-49f9-90e0-83d4013e76c2_fund0, ; a dcat:Dataset; dcterms:type dcmitype:Dataset ; dcterms:available "2026-03-02"^^xsd:date ; dcat:landingPage , ; dcterms:license ; dcterms:accessRights ; dcterms:theme ; dcat:distribution [ dcat:accessURL ; dcterms:license ; dcterms:accessRights ; dcterms:format [ a dcterms:IMT ; rdf:value "Comma-separated values (CSV)" ; rdfs:label "Comma-separated values (CSV)" ] ; ]; dcterms:creator :64d340d7-8f19-49f9-90e0-83d4013e76c2_a0, :64d340d7-8f19-49f9-90e0-83d4013e76c2_a1, :64d340d7-8f19-49f9-90e0-83d4013e76c2_a2, :64d340d7-8f19-49f9-90e0-83d4013e76c2_a3, :64d340d7-8f19-49f9-90e0-83d4013e76c2_a4, :64d340d7-8f19-49f9-90e0-83d4013e76c2_a5, :64d340d7-8f19-49f9-90e0-83d4013e76c2_a6 ; dcterms:language . :64d340d7-8f19-49f9-90e0-83d4013e76c2_c0 a foaf:Person ; foaf:name "Alastair Crawford" ; vcard:hasEmail "a.j.crawford2@exeter.ac.uk" ; foaf:member ; . a foaf:Organization ; foaf:name "NERC EDS Environmental Information Data Centre" ; vcard:hasEmail "info@eidc.ac.uk" ; foaf:member ; . :64d340d7-8f19-49f9-90e0-83d4013e76c2_a0 a foaf:Person ; foaf:name "Ivison, K." ; foaf:familyName "Ivison" ; foaf:givenName "K." ; vcard:hasEmail "katy_ivison@yahoo.co.uk" ; foaf:member ; . :64d340d7-8f19-49f9-90e0-83d4013e76c2_a1 a foaf:Person ; foaf:name "Little, K." ; foaf:familyName "Little" ; foaf:givenName "K." ; vcard:hasEmail "k.e.little@bham.ac.uk" ; foaf:member ; . :64d340d7-8f19-49f9-90e0-83d4013e76c2_a2 a foaf:Person ; foaf:name "Belcher, C.M." ; foaf:familyName "Belcher" ; foaf:givenName "C.M." ; vcard:hasEmail "c.belcher@exeter.ac.uk" ; foaf:member ; . :64d340d7-8f19-49f9-90e0-83d4013e76c2_a3 a foaf:Person ; foaf:name "Crawford, A.J." ; foaf:familyName "Crawford" ; foaf:givenName "A.J." ; vcard:hasEmail "a.j.crawford2@exeter.ac.uk" ; foaf:member ; . :64d340d7-8f19-49f9-90e0-83d4013e76c2_a4 a foaf:Person ; foaf:name "Davidson, S.J." ; foaf:familyName "Davidson" ; foaf:givenName "S.J." ; vcard:hasEmail "davidson.scott_j@uqam.ca" ; foaf:member ; . :64d340d7-8f19-49f9-90e0-83d4013e76c2_a5 a foaf:Person ; foaf:name "Graham, L.J." ; foaf:familyName "Graham" ; foaf:givenName "L.J." ; vcard:hasEmail "l.graham@bham.ac.uk" ; foaf:member ; . :64d340d7-8f19-49f9-90e0-83d4013e76c2_a6 a foaf:Person ; foaf:name "Kettridge, N." ; foaf:familyName "Kettridge" ; foaf:givenName "N." ; vcard:hasEmail "n.kettridge@bham.ac.uk" ; foaf:member ; . a skos:Concept; skos:prefLabel "Environmental risk"; rdfs:label "Environmental risk" . a skos:Concept; skos:prefLabel "heathland"; rdfs:label "heathland" . a skos:Concept; skos:prefLabel "fire"; rdfs:label "fire" . a skos:Concept; skos:prefLabel "citizen science"; rdfs:label "citizen science" . a skos:Concept; skos:prefLabel "Calluna vulgaris"; rdfs:label "Calluna vulgaris" . a foaf:Organization ; foaf:name "University of Exeter" . a foaf:Organization ; foaf:name "University of Birmingham" . a foaf:Organization ; foaf:name "Université du Québec à Montréal" . :64d340d7-8f19-49f9-90e0-83d4013e76c2_fund0 a prov:Activity ; rdfs:label "Towards a UK Fire Danger Rating System" . a prov:Activity ; rdfs:label "Horizon 2020 Pyrolife Innovative Training Network" .