Pablo Sastre Olmos HerpNet/GBIF Georeferencing Workshop 2006 Georepresenting.
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Transcript of Pablo Sastre Olmos HerpNet/GBIF Georeferencing Workshop 2006 Georepresenting.
Spain / Europe
GIS Layer “Country-polygon”: Num. / Cont-Ocea / Country Europe / Spain Collection Database: Num. / Sps / … / Cont-Ocea / Country
Canary Islands / Spain / Africa
GIS Layer “Archipielago-circle”: Num. / Archipielago Africa / Spain / Canary Islands
Collection Database: Num. / Sps / … / Cont-Ocea / Country / Archipielago
Madrid / SpainExtent
GIS Layer “Provinces-Spain-polygon”: Num. / State-Province Spain / MadridCollection Database: Num. / Sps / … / Country / State-Province
Madrid / SpainUncertainity
GIS Layer “Provinces-Spain-polygon”: Num. / State-Province (=Madrid)
GIS Functions / Distance operators / Buffer
Muros / A Coruña / Galicia Tres Cantos / Madrid
Named places - County
A Coruña / GIS Layer “Counties-Spain-polygon”: Num. / County Madrid / Muros Tres Cantos
Collection Database: Num. / Sps / … / State-Province / County
Birds Colection – Spanish Museum of Natural Sciences (MNCN-CSIC)
Genus ParusForest
Genus CircusAgriculture
Madrid /Counties
Tres Cantos / Madrid
Circles or Squares ?
GIS Layer “Counties-Spain-UTMx10”: Num. / UTMx10 / County Madrid / Tres Cantos Collection Database: Num. / Sps / … / State-Province / County
... or Points ?
Centroid (averagepolygon coordinates)
Geometric centre(coordinates of the furthestpoint from polygon border)
Urban centre(coordinates of themain city centre)
GIS Layer “Counties-Spain-GeometricPoint”: Num. / … / State-Province / County
Collection Database: A Coruña / MurosNum. / Sps / … / State-Province / County
Muros / A Coruña /
Galicia / Spain
Closer to Louro
Named places - Specific locality Louro / Muros / A Coruña / Galicia / Spain
A Coruña / Muros /Louro
Muros county
Localities nearby
Thiessenpolygons(Voronoi)
Collection Database: Num. / Sps / ... / Cont-Ocea / ... / Locality
GIS Layer “DetailedLocalities”: Num. / Locality
Generalization