Investigating land area categories in large-scale historical topographic maps in relation to analysing land use and land cover changes

Stig Roar Svenningsen, Mads Linnet Perner, Gregor Levin, Geoff Groom

Publikation: Bidrag til bog/antologi/rapportKonferencebidrag i proceedingsForskningpeer review


Analysis of historical land cover and land use change (LULCC) of pre 1950s landscapes primarily relies oncartographic documents as the source of spatially explicit information. Methodologically, most historicalLULCC studies utilizing historical cartographic documents report on the geometrical precision and correctnessof georeferencing and vectorization. However, less often attention is devoted to careful interpretation of landarea categories. Thus, information in historical maps is taken for granted or seen as self-explanatory. Thispaper presents an analysis of land area categories in Danish historical large-scale topographic maps from thesecond half of the 19th century in relation to a recent research project focused on development of automatedmethods for vectorization of historical maps. The analysis reveals that the classification of land area categoriesis complex and that categories in the legend cannot necessarily stand direct comparison to modern LULCcategories. Despite a similar appearance (i.e. sharing the same name as categories in current official geo-data),the categorization of land in the maps discussed here rested on a military oriented assessment of landscapetrafficability. This result implies that thorough analysis of categories in historical maps is needed if data are tobe used for LULCC studies. Thorough historical analysis of the development of the mapping and representa-tional practices of land area categories in historical maps can reveal both a more consistent understanding ofthe relationship between map categories and the historical LULC, but it can also assist the development ofautomated methods for extracting vector data.
Titel15th ICA Conference Digital Approaches to Cartographic Heritage : Conference Proceedings
ForlagInternational Cartographic Association
StatusUdgivet - 2021
Udgivet eksterntJa
Begivenhed15th ICA Conference Digital Approaches to Cartographic Heritage - Online
Varighed: 6 maj 20217 maj 2021


Konference15th ICA Conference Digital Approaches to Cartographic Heritage

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