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1、Land Cover Classification SystemClass A Liaison Seminar of ISO TC 211 LCCS:An Approach to the Global Harmonisation of Land CoverJohn S.Latham and Antonio Di GregorioEnvironment and Natural Resources ServiceResearch,Extension and Training DivisionSustainable Development DepartmentLand Cover Classific
2、ation SystemFAO Background The Food and Agriculture Organization(FAO)was founded in 1945 with a mandate to raise levels of nutrition and standards of living,to improve agricultural productivity,and better the condition of rural populations.FAO is one of the largest specialized agencies of the UN sys
3、tem and the lead agency for agriculture,forestry,fisheries,and rural development.FAO has 184 member countries plus one member organization,the European Community.It works extensively in the development of standards pertaining to food and agriculture and also has a substantive number of activities in
4、 the field of spatial information management.LCCS:an approach to the global harmonisation of Land CoverISO TC 211 Class A Liaison SeminarLand Cover Classification SystemApplication for Class A Liaison Status accepted Thun plenary Submit a new Work item proposal-NWIP-a draft has been circulated perta
5、ining to LCCS.After completion of LCCS-version 2,in January/February 2004,(5 languages)a formal NWIP will be issued in ISO formatWork with Advisory Group on Outreach to develop and enhance the effectiveness of FAO/UN and ISO joint outreach through education and training especially through ourDistanc
6、e Learning Tools-“Resource Kit”.We will be inviting the advisoryGroup on outreach to work in a partnership with us on content standardisation.Establish a Co-operative Agreement between FAO/UN and ISO TC 211LCCS:an approach to the global harmonisation of Land CoverISO TC 211 Class A Liaison SeminarLa
7、nd Cover Classification System DefinitionLand cover is the observed(bio)physical coverLand cover is the observed(bio)physical coveron the earths surfaceon the earths surface.It includes vegetation and man-made features as well as bare rock,bare soil and inland water surfaces.LCCS:an approach to the
8、global harmonisation of Land CoverISO TC 211 Class A Liaison SeminarLand Cover Classification SystemLand Cover Classification System 100%50%10%50m30m5m1 2 3 4.97 989910033477883Reference Classification SystemDEFINEDGEOGRAPHICAREAMappingunitsDerivedlegendInherent characteristicof the area determining
9、 the legend classes at a given scale and data typeInterpretation activityEndusersCLASSIFICATION VERSUS LEGENDSLCCS:an approach to the global harmonisation of Land CoverISO TC 211 Class A Liaison SeminarLand Cover Classification SystemTHE OBJECTIVETHE OBJECTIVETo produce a world-wide reference system
10、 for landcover able to combine an high level of flexibilityflexibility(abilityto describe land cover features all over the world at any scale or level of detail)with an absolute level of standardizationstandardization of the class definition between different usersTHE IDEATHE IDEAA system that allow
11、s a dynamic creation of classeswithout to oblige the user to relate to a pre-defined list of namesTHE BASIC CONCEPTTHE BASIC CONCEPTIn LCCS the creation of a class is done by a dynamic combination of land cover diagnostic attributes diagnostic attributes calledclassifiers classifiers LCCS:an approac
12、h to the global harmonisation of Land CoverISO TC 211 Class A Liaison SeminarLand Cover Classification System In LCCS it is the same,the classifiers are the words the classification rules are the syntax and the land cover features the concepts to be described.Like in a language the combination of cl
13、assifiers troughthe use of the classification rules gives the possibility todescribe a wide variety of land cover features.The combination of the same classifiers between the whole different users of the classification system will result in the same land cover class.How it worksHow it worksIn any la
14、nguage a semantic concept is expressed using wordsregulated by a syntax LCCS:an approach to the global harmonisation of Land CoverISO TC 211 Class A Liaison SeminarLand Cover Classification SystemLand Cover Classification SystemMajor advantages of the methodLCCS gives to the user the possibility to
15、define a large number of land cover features(app.200000)despite the large number all the classes have a very distinctive and unambiguous meaningLCCS create an absolute level of standardization between the different users LCCS:an approach to the global harmonisation of Land CoverISO TC 211 Class A Li
16、aison SeminarLand Cover Classification SystemMajor possible applications:all the land cover/natural resources mapping activities at any scale in any part of the worldbridging system between land cover mapsthat use local or not standardized legendspossible link between small scale global mapping acti
17、vities and detailed large scalenational mapping programsbridging system to link natural resources statistical census with mapping programsat national or regional levelLCCS:an approach to the global harmonisation of Land CoverISO TC 211 Class A Liaison SeminarLand Cover Classification SystemLand Cover Classification SystemComponentsMetadata Server for Geo-referenced data&Information Spatial Data&InformationPortalServices&Online UseManagement