210 likes | 312 Views
Possibilities and prospects on the GIS analysis of landscape history. A methodological overview of the currently available tools and some prospects for the near future. G. Király – É. Konkoly-Gyuró – D. Nagy Univ. of West Hungary, Faculty of Forestry. Outline. Introduction Harmonisation
E N D
Possibilities and prospects on the GIS analysis of landscape history A methodological overview of the currently available tools and some prospects for the near future G. Király – É. Konkoly-Gyuró – D. Nagy Univ. of West Hungary, Faculty of Forestry
Outline • Introduction • Harmonisation • Analysis methods • Vector methods • Raster methods • Combine methods • Test Area ‘ŐRSÉG’ • Results • Conclusions
Introduction • Historical maps are become more valued • They connect a lot of different field, such as history, geography, ecology, managements, etc. • Their GIS analysis give much more knowledge, than traditional viewing
GIS Analysis Possible, when comparable maps are available • Geometrically • Thematically
Geometric harmonisation • Control Points • Control Lines • Control Areas • Application of DEMs • Point features – mountains • Linear features – ridges and valleys • Areal features – plateaus, lakes
Control Points – Mountain peaks Control Lines - Valleys Application of DEM1st Military and peaks
Control Points – Mountain peaks Control Lines - Valleys Application of DEM2nd Military and peaks
Control Points – Mountain peaks Control Lines - Valleys Application of DEM 3rd Military and peaks
Control Points – Mountain peaks Control Lines - Valleys Application of DEM SRTM DEM and peaks
Control Points – Mountain peaks Control Lines – Valleys valleys from 1st Military Application of DEM SRTM DEM and peaks
Thematic harmonisation • Reclassifying tables • Universal • Unambiguous • Hierarchic • from ~50 categories…
Thematic harmonisation • Reclassifying tables • Universal • Unambiguous • Hierarchic • … to 9 categories
Vector analysis Polygon overlay Forward Backward Raster analysis Classic analysis methods
Complex methods • Inclusion of DEMs • Profile based • Area based • Inclusion of other data
Results – raster analysis 3rd 1st
Conclusions • Harmonisation is very crucial • DEMs can help in geometric harmonisation • Inclusion of DEM can help to interpret the changes
Thank You for the attention! Questions?