The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
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Articles | Volume XLIII-B2-2021
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLIII-B2-2021, 907–913, 2021
https://doi.org/10.5194/isprs-archives-XLIII-B2-2021-907-2021
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLIII-B2-2021, 907–913, 2021
https://doi.org/10.5194/isprs-archives-XLIII-B2-2021-907-2021

  28 Jun 2021

28 Jun 2021

STATE-WIDE CALCULATION OF TERRAIN-VISUALISATIONS AND AUTOMATIC MAP GENERATION FOR ARCHAEOLOGICAL OBJECTS

F. Thiemann1, M. Schulze1, and U. Böhner2 F. Thiemann et al.
  • 1Institute of Cartography and Geoinformatics, Leibniz University Hannover, Germany
  • 2Lower Saxony State Service for Cultural Heritage, Hannover, Germany

Keywords: Archaeology, Automation, Contour Map, Digital Terrain Model, LiDAR, Prospection, Terrain Visualisation

Abstract. Airborne laser scanning (ALS) became very popular in the last two decades for archaeological prospection. With the state-wide availability of ALS-data in Lower Saxony, Germany, about 48,000 km², we needed flexible and scalable approaches to process the data. First, we produced a state-wide digital terrain model (DTM) and some visualisations of it to use it in standard GIS software. Some of these visualisations are available as web maps and used for prospection also by volunteers. In a second approach, we automatically generate maps for all known archaeological objects. This is mainly used for the documentation of the 130,000 known objects in Lower Saxony, but also for object-by-object revision of the database. These Maps will also be presented in the web portal “Denkmalatlas Niedersachsen”, an open data imitative of the state Lower Saxony.

In the first part of this paper, we show how the state-wide DTM and its visualisations can be calculated using tiles. In the second part, we describe the automatic map generation process. All implementations were done with ArcGIS and its scripting interface ArcPy.