European Validation of Land Cover Changes in CLC2006 Project. Büttner, G.; Maucha, G.; and Kosztra, B. In Remote Sensing and Geoinformation Not Only for Scientific Cooperation.
European Validation of Land Cover Changes in CLC2006 Project [link]Paper  abstract   bibtex   
CORINE Land Cover 2006 is the third European Land Cover inventory (1990, 2000 and 2006). The number of participating countries is increasing, at present being nominally 39. New countries (CH, IS, NO, TR) not participating previous CLC inventories have joined the project. At the time of writing of this abstract (December 2010) 37 countries have finished CLC2006. CLC2006 project is co-financed by EEA and member countries, and covers 5.8 Mkm2 of the European continent. For production of CLC-Change2000-2006 database ” change-mapping first” visual photo-interpretation technology was successfully applied by majority of countries. Scandinavian countries replaced part of labour-intensive photo-interpretation with GIS and image processing. CLC2006 database was usually produced in GIS by adding CLC-Change2000-2006 to revised CLC2000. A Technical Team under ETC-LUSI was responsible for technical follow-up of the project. National teams used multi-temporal (2 coverages) SPOT-4/5 and/or IRS-P6 imagery to interpret the minimum 5 ha land cover changes that occurred between 2000 and 2006. Ortho-corrected satellite images provided a solid geometrical basis for mapping land cover changes. Particular emphasis was placed on mapping real change processes. The standard CLC nomenclature applied since the mid 1980's was applicable, although minor modifications were required due to the involvement of new countries and occurrence of specific changes. Results show that land cover changed on 1.25\,% of the surface of Europe between 2000 and 2006, which is equivalent to the size of Lithuania. Forestry changes (forest felling and growth) constitute the largest change area; they also provide the highest number of change polygons. The method of stratified random sampling was used for validating CLC-Change2000-2006. The obtained 87.8%±3.3\,% (commission error only) overall accuracy based on 2405 samples is satisfying. Omissions were not possible to measure due to the very large sample size required, being the consequence of small change percentage. Additional testing of ten important level-3 changes (belonging to eight different Land Cover Flows) showed that all but two change types have more than 85\,% accuracy. The presentation introduces details of the applied validation methodology as well as some interesting land cover change examples.
@inproceedings{buttnerEuropeanValidationLand2011,
  title = {European {{Validation}} of {{Land Cover Changes}} in {{CLC2006 Project}}},
  booktitle = {Remote {{Sensing}} and {{Geoinformation}} Not Only for {{Scientific Cooperation}}},
  author = {Büttner, György and Maucha, Gergely and Kosztra, Barbara},
  editor = {Halounová, Lena},
  date = {2011},
  url = {http://mfkp.org/INRMM/article/12738017},
  abstract = {CORINE Land Cover 2006 is the third European Land Cover inventory (1990, 2000 and 2006). The number of participating countries is increasing, at present being nominally 39. New countries (CH, IS, NO, TR) not participating previous CLC inventories have joined the project. At the time of writing of this abstract (December 2010) 37 countries have finished CLC2006. CLC2006 project is co-financed by EEA and member countries, and covers 5.8 Mkm2 of the European continent. For production of CLC-Change2000-2006 database ” change-mapping first” visual photo-interpretation technology was successfully applied by majority of countries. Scandinavian countries replaced part of labour-intensive photo-interpretation with GIS and image processing. CLC2006 database was usually produced in GIS by adding CLC-Change2000-2006 to revised CLC2000. A Technical Team under ETC-LUSI was responsible for technical follow-up of the project. National teams used multi-temporal (2 coverages) SPOT-4/5 and/or IRS-P6 imagery to interpret the minimum 5 ha land cover changes that occurred between 2000 and 2006. Ortho-corrected satellite images provided a solid geometrical basis for mapping land cover changes. Particular emphasis was placed on mapping real change processes. The standard CLC nomenclature applied since the mid 1980's was applicable, although minor modifications were required due to the involvement of new countries and occurrence of specific changes. Results show that land cover changed on 1.25\,\% of the surface of Europe between 2000 and 2006, which is equivalent to the size of Lithuania. Forestry changes (forest felling and growth) constitute the largest change area; they also provide the highest number of change polygons. The method of stratified random sampling was used for validating CLC-Change2000-2006. The obtained 87.8\%±3.3\,\% (commission error only) overall accuracy based on 2405 samples is satisfying. Omissions were not possible to measure due to the very large sample size required, being the consequence of small change percentage. Additional testing of ten important level-3 changes (belonging to eight different Land Cover Flows) showed that all but two change types have more than 85\,\% accuracy. The presentation introduces details of the applied validation methodology as well as some interesting land cover change examples.},
  isbn = {978-80-01-04868-9},
  keywords = {*imported-from-citeulike-INRMM,~INRMM-MiD:c-12738017,anthropogenic-changes,clc,europe,gis,land-cover,plausibility-check,validation},
  venue = {Prague, Czech Republic}
}
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