title: Use of satellite images for geographical localization of livestock holdings in Brazil.
abstract: Google Earth(®) provides free access to satellite images and has been used in several areas that require cartographic information. The present study assessed the inconsistencies between geo-referencing of livestock premises by GPS and the acquisition of geographic coordinates by remote sensing (RS) images provided by Google Earth(®) in the Brazilian states of Bahia, Distrito Federal, Minas Gerais and Parana. The overall mean and standard deviation of the distances in the study were 30.98±19.89 m. The mean distance differences between the two techniques were, for these states, 37.20±19.75 m, 28.38±17.38 m, 31.61±15.72 m, 28.43±24.30 m, respectively. Despite the fact that there is variation between the geo-referencing points using GPS and RS, geographical localization of health inspections should be useful as long as the errors between the results of the two methodologies are considered.
authors.affiliation: Ministry of Agriculture, Livestock and Food Supply-MAPA, Brasília, DF, Brazil.
authors.forename: Luiz Felipe Ramos
authors.initials: LF
authors.lastname: Carvalho
authors.forename: Cristiano Barros
authors.initials: CB
authors.lastname: de Melo
authors.forename: Concepta
authors.initials: C
authors.lastname: McManus
authors.forename: João Paulo Amaral
authors.initials: JP
authors.lastname: Haddad
mesh_terms: D000818:Animals; D001938:Brazil; D040362:Geographic Information Systems / Q000295:instrumentation; D006799:Housing, Animal; D058751:Livestock; D010781:Photography / Q000295:instrumentation / Q000379:methods / Q000662:veterinary*; D058998:Remote Sensing Technology / Q000295:instrumentation / Q000379:methods / Q000662:veterinary*; D018531:Spacecraft; D014730:Veterinary Medicine