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dc.description.abstractThe African Geodetic Reference Frame (AFREF) was conceived as a unified geodetic reference frame for Africa, fully consistent with the International Terrestrial Reference Frame (ITRF), which will form the foundation of national and regional three-dimensional reference networks. AFREF will be composed of a network of control points where precise observations will be made and used to define an African reference frame that will produce the best filling datum for Africa. The density of the network will be such that positioning professionals (surveyors, engineers, environmentalists, agriculturalists, mineral prospectors, etc.) would always be within a reasonable distance of at least one such control point from anywhere in Africa. The relevant parameters of the network will be made freely available to practitioners.en
dc.titleImplementation of the African Geodetic Reference Frame (AFREF) project proposalen
ags.descriptionNotesLibrary also has French edition under the title : "Mise en place du référentiel géodésique africain (AFREF): proposition de projet".en
ags.publisherPlaceAddis Ababa :en
ags.publisherNameUN. ECA,en
dc.coverage.spatialAFR
dc.coverage.spatialAfrica
dc.date.accessioned2011-08-02T11:52:57Z
dc.date.available2011-08-02T11:52:57Z
dc.date.issued2009-02
dc.identifier.urihttps://hdl.handle.net/10855/3432
dc.format.extent13 p. :
dc.languageeng
dc.typeConference document
uneca.subject.fulltaxonomyUNBIS::NATURAL RESOURCES AND THE ENVIRONMENT::CARTOGRAPHY::AERIAL PHOTOGRAPHY
uneca.subject.fulltaxonomyUNBIS::SCIENCE AND TECHNOLOGY::EARTH SCIENCES::GEODETIC SURVEYS
uneca.subject.fulltaxonomyUNBIS::SCIENCE AND TECHNOLOGY
uneca.subject.fulltaxonomyUNBIS::NATURAL RESOURCES AND THE ENVIRONMENT::GEOGRAPHY
uneca.subject.fulltaxonomyUNBIS::RESSOURCES NATURELLES ET ENVIRONNEMENT::CARTOGRAPHIE::PHOTOGRAPHIE AERIENNE
uneca.subject.fulltaxonomyUNBIS::RECURSOS NATURALES Y MEDIO AMBIENTE::CARTOGRAFIA::FOTOGRAFIA AEREA
uneca.subject.fulltaxonomyUNBIS::SCIENCES ET TECHNIQUES::SCIENCES DE LA TERRE::LEVES GEODESIQUES
uneca.subject.fulltaxonomyUNBIS::CIENCIA Y TECNOLOGIA::CIENCIAS DE LA TIERRA::ESTUDIOS GEODESICOS
uneca.subject.fulltaxonomyUNBIS::SCIENCES ET TECHNIQUES
uneca.subject.fulltaxonomyUNBIS::CIENCIA Y TECNOLOGIA
uneca.subject.fulltaxonomyUNBIS::RESSOURCES NATURELLES ET ENVIRONNEMENT::GEOGRAPHIE
uneca.subject.fulltaxonomyUNBIS::RECURSOS NATURALES Y MEDIO AMBIENTE::GEOGRAFIA
uneca.conference.fulltaxonomyConference Categories::Sessions of the Commission
uneca.conference.fulltaxonomyConference Categories::Conferences on Information Development, Science and Technology
uneca.workflow.processedtrue
ags.creatorCorporateUnited Nations. Economic and Social Council
ags.creatorCorporateUnited Nations. Economic Commission for Africa
ags.creatorConferenceUN. ECA Committee on Development Information, Science and Technology (1st session : 2009, Apr. 28-May 01: Addis Ababa, Ethiopia)
ags.subjectThesaurusAERIAL PHOTOGRAPHY
ags.subjectThesaurusGEODETIC SURVEYS
ags.subjectThesaurusSCIENCE AND TECHNOLOGY
ags.subjectThesaurusGEOGRAPHY
ags.subjectThesaurusPHOTOGRAPHIE AERIENNE
ags.subjectThesaurusFOTOGRAFIA AEREA
ags.subjectThesaurusLEVES GEODESIQUES
ags.subjectThesaurusESTUDIOS GEODESICOS
ags.subjectThesaurusSCIENCES ET TECHNIQUES
ags.subjectThesaurusCIENCIA Y TECNOLOGIA
ags.subjectThesaurusGEOGRAPHIE
ags.subjectThesaurusGEOGRAFIA
ags.subjectClassification03.01.00 Geo-information
ags.availabilityNumber27815
ags.availabilityNumber2009
ags.availabilityLocationECA-HQ
ags.rights.termsofusepublic
ags.RNE/ECA/CODIST/1/6
ags.JN27815
ags.creatorConferenceCategorySessions de la Commission
ags.creatorConferenceCategoryConférences sur le développement de l’information, de la science et de la technologie
ags.creatorConferenceCategorySessions of the Commission
ags.creatorConferenceCategoryConferences on Information Development, Science and Technology
uneca.language.supporteden


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