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Pablo Sastre Olmos. Introduction to Geographic Information Systems (GIS). 7 May 2008. Geographic Information Systems. Mapping criteria must be relevant for the organisms or processes studied. 1:18.000. 1:6.500. 1 km. 1 km. 1 km. Analysis at different resolution scales. Mapa 1:50.000.
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Pablo Sastre Olmos Introduction toGeographic Information Systems (GIS) 7 May 2008
Mapping criteria must be relevant for the organisms or processes studied
1:18.000 1:6.500 1 km 1 km 1 km Analysis at different resolution scales Mapa 1:50.000 1 x 1 Km UTM 30T VK3796
Analysis at different extents (area of samples)
Spatial query: show the attributes Query by attribute: show the location
Storage of attributes Raster model (digital code)
Storage of attributes Vector model (table associated to objects)
Raster Digital Terrain Model (DTM) Vector Contour lines (dist.=500m)
Georeferencing Geographic references Collection Database (Darwin Core):Country = Spain Digital map “Countries-World” (GIS layer with database): Country = Spain
Georeferencing Geographic references Collection Database (Darwin Core):Country = Spain Digital map “Countries-Europe” (GIS layer with database): Country = Spain
Geographic references Darwin Core Fields ¿What?: Phylum, Species, Sex, ... ¿How?: BasisOfRecord, PreparationType ¿Who?: Collector, ... ¿When?: YearCollected, ... ¿Where?: ContinentOcean Country Province County Locality Longitude Latitude CoordinatePrecision, BoundingBox MaximumElevation, MaxDepth, ... • Limits Land - Sea: • Continents • Islands, archipelagos • Administrative limits: • Countries • Regions • Provinces • Counties • Districts, etc. • Streets, roads (post addresses) • Rivers, etc. • Mountains, etc. Systems of X,Y coordinates Lat./Long. (decimal degrees) UTM (metres, …) Etc.
Madrid / Counties Genus Parus Forest Genus Circus Agriculture Birds Colection – Spanish Museum of Natural Sciences (MNCN-CSIC)
Historical Data Example:Country = Nueva Granada República de Nueva Granada (1830-1861) (Colombia, Panamá) Virreinato de Nueva Granada (1718-1819) (Colombia, Panamá, Venezuela, Ecuador)