Airborne laser bathymetry – detecting and recording submerged archaeological sites from the air

Doneus, Michael; Doneus, Nives; Briese, Christian; Pregesbauer, Michael; Mandlburger, Gottfried; Verhoeven, Geert

doi:10.1016/j.jas.2012.12.021

Cited by 80 publications

(47 citation statements)

References 35 publications

(42 reference statements)

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“…Within the water body, the laser beam is further spread due to the optical properties of water. As a consequence, the illuminated portion of the bottom increases as does the uncertainty in depth estimation (for a more detailed discussion, see Doneus et al, 2013.…”

Section: Airborne Laser Bathymetrymentioning

confidence: 99%

Airborne Laser Bathymetry for Documentation of Submerged Archaeological Sites in Shallow Water

Doneus

Miholjek

Mandlburger

et al. 2015

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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ABSTRACT:Knowledge of underwater topography is essential to the understanding of the organisation and distribution of archaeological sites along and in water bodies. Special attention has to be paid to intertidal and inshore zones where, due to sea-level rise, coastlines have changed and many former coastal sites are now submerged in shallow water. Mapping the detailed inshore topography is therefore important to reconstruct former coastlines, identify sunken archaeological structures and locate potential former harbour sites. However, until recently archaeology has lacked suitable methods to provide the required topographical data of shallow underwater bodies. Our research shows that airborne topo-bathymetric laser scanner systems are able to measure surfaces above and below the water table over large areas in high detail using very short and narrow green laser pulses, even revealing sunken archaeological structures in shallow water. Using an airborne laser scanner operating at a wavelength in the green visible spectrum (532 nm) two case study areas in different environmental settings (Kolone, Croatia, with clear sea water; Lake Keutschach, Austria, with turbid water) were scanned. In both cases, a digital model of the underwater topography with a planimetric resolution of a few decimeters was measured. While in the clear waters of Kolone penetration depth was up to 11 meters, turbid Lake Keutschach allowed only to document the upper 1.6 meters of its underwater topography. Our results demonstrate the potential of this technique to map submerged archaeological structures over large areas in high detail providing the possibility for systematic, large scale archaeological investigation of this environment.

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Section: Airborne Laser Bathymetrymentioning

confidence: 99%

Airborne Laser Bathymetry for Documentation of Submerged Archaeological Sites in Shallow Water

Doneus

Miholjek

Mandlburger

et al. 2015

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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“…As a further application ALB was applied to map submerged archaeological structures over large areas in high detail. The results showed that the technique is mature enough to be utilized for underwater heritage management [10]. In combination with side-scan sonar, shipwrecks were indentified and their dimensions could be measured [11].…”

Section: Airborne Laser Bathymetrymentioning

confidence: 99%

Comparison of three airborne laser bathymetry data sets for monitoring the German Baltic Sea Coast

et al. 2015

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Airborne laser bathymetry (ALB) can be used for hydrographic surveying with relative high resolution in shallow water. In this paper, we examine the applicability of this technique based on three flight campaigns. These were conducted between 2012 and 2014 close to the island of Poel in the German Baltic Sea. The first data set was acquired by a Riegl VQ-820-G sensor in November 2012. The second and third data sets were acquired by a Chiroptera sensor of Airborne Hydrography AB in September 2013 and May 2014, respectively. We examine the 3D points classified as seabed under different conditions during data acquisition, e.g. the turbidity level of the water and the flight altitude. The analysis comprises the point distribution, point density, and the area coverage in several depth levels. In addition, we determine the vertical accuracy of the 3D seabed points by computing differences to echo sounding data. Finally, the results of the three flight campaigns are compared to each other and analyzed with respect to the different conditions during data acquisition. For each campaign only small differences in elevation between the laser and the echo sounding data set are observed. The ALB results satisfy the requirements of IHO Standards for Hydrographic Surveys (S-44) Order 1b for several depth intervals.

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“…agricultural land, pastures, woodland, shallow water - Doneus and Briese, 2011;Gaffney et al, 2012;Trinks et al, 2012;Doneus et al, 2013a). These systematic surveys usually result in a large number of archaeological sites.…”

Section: Introductionmentioning

confidence: 99%

Apis – A Digital Inventory of Archaeological Heritage Based On Remote Sensing Data

Doneus¹,

Forwagner²,

Liem³

et al. 2017

ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci.

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ABSTRACT:Heritage managers are in need of dynamic spatial inventories of archaeological and cultural heritage that provide them with multipurpose tools to interactively understand information about archaeological heritage within its landscape context. Specifically, linking site information with the respective non-invasive prospection data is of increasing importance as it allows for the assessment of inherent uncertainties related to the use and interpretation of remote sensing data by the educated and knowledgeable heritage manager. APIS, the archaeological prospection information system of the Aerial Archive of the University of Vienna, is specifically designed to meet these needs. It provides storage and easy access to all data concerning aerial photographs and archaeological sites through a single GIS-based application. Furthermore, APIS has been developed in an open source environment, which allows it to be freely distributed and modified. This combination in one single open source system facilitates an easy workflow for data management, interpretation, storage, and retrieval. APIS and a sample dataset will be released free of charge under creative commons license in near future.

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Airborne laser bathymetry – detecting and recording submerged archaeological sites from the air

Cited by 80 publications

References 35 publications

Airborne Laser Bathymetry for Documentation of Submerged Archaeological Sites in Shallow Water

Airborne Laser Bathymetry for Documentation of Submerged Archaeological Sites in Shallow Water

Comparison of three airborne laser bathymetry data sets for monitoring the German Baltic Sea Coast

Apis – A Digital Inventory of Archaeological Heritage Based On Remote Sensing Data

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