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 : :2efd24f9-e745-4f54-8bbd-6439b0ad93e5 dcterms:title "River channel migration and characteristics from 1988 to 2019 at 74 bridges in the Philippines" ; dcterms:identifier "https://catalogue.ceh.ac.uk/id/2efd24f9-e745-4f54-8bbd-6439b0ad93e5","https://doi.org/10.5285/2efd24f9-e745-4f54-8bbd-6439b0ad93e5" ; dcterms:bibliographicCitation "Boothroyd, R.J., Williams, R.D., Hoey, T.B., Tolentino, P.L.M., Yang, X. (2020). River channel migration and characteristics from 1988 to 2019 at 74 bridges in the Philippines. NERC Environmental Information Data Centre. https://doi.org/10.5285/2efd24f9-e745-4f54-8bbd-6439b0ad93e5" ; dcterms:description "The data set contains the Philippines bridge inventory, river migration geodatabase and source code to assess active river channel change (i.e. planform adjustments) using Landsat 5, 7 and 8 products in Google Earth Engine. The data set contains hydro-morphological and bridge characteristics for 74 bridges (> 200 m deck length) in the Philippines from 1988 to 2019 and is available in .csv and .shp format. For a given region of interest (ROI), the code will extract active river channel masks, calculate similarity coefficients between active river channel masks at decadal intervals and calculate active widths and centreline statistics. The code was used by Boothroyd et al. (in press) to investigate decadal river migration at critical bridge infrastructure in the Philippines." ; dcterms:provenance [ a dcterms:ProvenanceStatement ; rdfs:label "Bridge characteristics were derived from a geospatial database of Philippine bridges retrieved in April 2020 from the Detailed Bridge Inventory Application (DPWH, 2020). The database was filtered to include only permanent bridges where the bridge deck length was equal to or greater than 200 m (n = 256). A visual inspection was performed to ensure that bridges were located at contemporary river crossings (n = 182) and only those bridges where the active river channel width exceeded 150 m (equivalent to five Landsat pixels) were retained for analysis (n = 74). Stream network and geomorphology characteristics were derived from a nationwide digital elevation model (DEM) acquired in 2013 and generated through airborne Interferometric Synthetic Aperture Radar, with a 5 m spatial resolution and 1 m root-mean-square error vertical accuracy (Grafil and Castro, 2014) was used for topographic analysis and extraction of the stream network. Google Earth Engine (GEE) was used to extract active river channel masks from Landsat 5, 7 and 8 satellite imagery. The workflow contained three main processing steps: (i) cloud masking and temporal compositing; (ii) active river channel classification; and, (iii) cleaning and image export." ] ; dcterms:spatial [ a dcterms:Location ; dcat:bbox "POLYGON((116.191 4.303, 116.191 21.371, 127.617 21.371, 127.617 4.303, 116.191 4.303))"^^geo:wktLiteral ; ] ; dcterms:temporal [ a dcterms:PeriodOfTime ; dcat:startDate "1988-01-01"^^xsd:date ; dcat:endDate "2019-12-31"^^xsd:date ; ] ; dcat:contactPoint ; dcterms:publisher ; dcterms:isReferencedBy ; dcterms:subject , , "Fluvial geomorphology", "river migration", "Jaccard index", "Dice similarity coefficient", "RivWidthCloud", "stream network characteristics", , , , ; prov:wasGeneratedBy ; a dcat:Dataset; dcterms:type dcmitype:Dataset ; dcterms:available "2020-12-17"^^xsd:date ; dcat:landingPage , ; dcterms:license ; dcterms:accessRights ; dcterms:theme ; dcterms:creator , , , :2efd24f9-e745-4f54-8bbd-6439b0ad93e5_a3, :2efd24f9-e745-4f54-8bbd-6439b0ad93e5_a4 ; dcterms:language . a foaf:Person ; foaf:name "Boothroyd, R." ; foaf:familyName "Boothroyd" ; foaf:givenName "Richard" ; vcard:hasEmail "richard.boothroyd@glasgow.ac.uk" ; foaf:member ; . a foaf:Organization ; foaf:name "NERC Environmental Information Data Centre" ; vcard:hasEmail "info@eidc.ac.uk" ; foaf:member ; . a foaf:Person ; foaf:name "Boothroyd, R.J." ; foaf:familyName "Boothroyd" ; foaf:givenName "R.J." ; vcard:hasEmail "richard.boothroyd@glasgow.ac.uk" ; foaf:member ; . a foaf:Person ; foaf:name "Williams, R.D." ; foaf:familyName "Williams" ; foaf:givenName "R.D." ; vcard:hasEmail "richard.williams@glasgow.ac.uk" ; foaf:member ; . a foaf:Person ; foaf:name "Hoey, T.B." ; foaf:familyName "Hoey" ; foaf:givenName "T.B." ; vcard:hasEmail "trevor.hoey@brunel.ac.uk" ; foaf:member [foaf:name "Brunel University London"] ; . :2efd24f9-e745-4f54-8bbd-6439b0ad93e5_a3 a foaf:Person ; foaf:name "Tolentino, P.L.M." ; foaf:familyName "Tolentino" ; foaf:givenName "P.L.M." ; vcard:hasEmail "plmtolentino@gmail.com" ; foaf:member ; . :2efd24f9-e745-4f54-8bbd-6439b0ad93e5_a4 a foaf:Person ; foaf:name "Yang, X." ; foaf:familyName "Yang" ; foaf:givenName "X." ; vcard:hasEmail "yangxiao@live.unc.edu" ; foaf:member [foaf:name "University of North Carolina"] ; . a ; dcterms:bibliographicCitation "Boothroyd, R.J., Williams, R.D., Hoey, T.B., Tolentino, P.L.M., & Yang, X. (2021). National-scale assessment of decadal river migration at critical bridge infrastructure in the Philippines. Science of The Total Environment, 144460."; . a skos:Concept; skos:prefLabel "Philippines"; rdfs:label "Philippines" . a skos:Concept; skos:prefLabel "Mapping"; rdfs:label "Mapping" . a skos:Concept; skos:prefLabel "bridge"; rdfs:label "bridge" . a skos:Concept; skos:prefLabel "river channelling"; rdfs:label "river channelling" . a skos:Concept; skos:prefLabel "river"; rdfs:label "river" . a skos:Concept; skos:prefLabel "geomorphology"; rdfs:label "geomorphology" . a foaf:Organization ; foaf:name "University of Glasgow" . a foaf:Organization ; foaf:name "University of the Philippines" . a prov:Activity ; rdfs:label "Catchment susceptibility to hydrometeorological events: sediment flux and geomorphic change as drivers of flood risk in the Philippines" .