Academic Article
LiDAR as a tool for archaeological research: A case study
- Title
- LiDAR as a tool for archaeological research: A case study
- Date
- 2014
- Is Part Of
- Archaeological and Anthropological Sciences
- Volume
- 6
- Issue
- 4
- Pages
- 411-423
- Language
- eng
- Abstract
- Airborne light detection and ranging (LiDAR) is a technology that offers the ability to create highly detailed digital terrain models (DTMs) that expose low relief topographic features. The availability of these models holds potential to augment archaeological field research by producing visual imagery that can used to identify traces of ancient anthropogenic activity. This capability is particularly useful in hard to access areas and in areas of dense vegetation, where manual surveys are difficult to plan and to execute. Additionally, LiDAR technology is nonintrusive so that initial surveys can be performed without altering or destroying the integrity of the landscape and any features that it may contain. This paper explores the use of LiDAR within the field of archaeology and uses a case study approach to investigate the potential of LiDAR data for identifying earthworks dating back to the pre-Roman period in central England. Additionally, an evaluation of a technique to enhance the imagery in order to facilitate detecting human activity on the landscape is undertaken. Vegetation cover, particularly during leaf-on periods, can interfere with the ability of LiDAR to penetrate to the surface and can therefore impact its accuracy. The effect of vegetation cover on the ability of LiDAR to produce accurate DTMs is evaluated in relationship to its impact on the identification of archaeological features.
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