Abstract
The archival aerial photographs are widely used for landscape change analysis, settlement identification or georelief reconstructions. The large archive of old aerial photographs is available for the whole Czech Republic and these data are often used by scientists, historians, students, etc. The quality of the datasets (orthophoto, digital surface models) resulting from archival aerial images processing is crucial for the ongoing analyses. The accuracy test of digital surface models derived from archival aerial images origintaing from 1938 and 1953 is presented within this paper. These two timelines were chosen because they preserve the landscape structure in the begining of the heavy indudstrialization of the Czech Republic.
Highlights
Archival aerial photographs are an irreplaceable data source for landscape development analysis
The first usage of aerial photogrammetry in the former Czechoslovakia is documented in the magazine “Zeměměřičský věstník” (Land-survey bulletin) in 1932 (Land-survey bulletin, 1932)
This web-mapping application allows viewing of the data only – it is not possible to add this data as a GIS layer. For purposes of this accuracy test, we have focused mainly on aerial photographs from 1938 and 1953 – as these datasets depict the landscape before or right after the start of the heavy industrialization of many regions in the Czech Republic
Summary
Archival aerial photographs are an irreplaceable data source for landscape development analysis. The processed aerial photographs from 1953 (orthophoto) covering the whole Czech Republic may be found at http://kontaminace.cenia.cz/ This web-mapping application allows viewing of the data only – it is not possible to add this data as a GIS layer. For purposes of this accuracy test, we have focused mainly on aerial photographs from 1938 and 1953 – as these datasets depict the landscape before or right after the start of the heavy industrialization of many regions in the Czech Republic. One of the purposes how to further use the derived Digital Surface Models (DSM) is georelief transfiguration analysis – aerial photographs may serve as a data source for the landscape 3D reconstruction as was presented in Pacina et al (2011), Pacina – Weiss (2011), Pacina et al (2012) and Pacina – Novák (2014). Micro-UAV (Sládek – Rusnák, 2013) systems are widely used for SFAP data collection
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