Documenting ancient anthropogenic signatures by remotely sensing the current vegetation spectral and 3D patterns: A case study at Roman Porolissum archaeological site (Romania)

Roman, Anamaria; Ursu, Tudor‐Mihai; Fărcaş, Sorina; Opreanu, Coriolan Horațiu; Lăzărescu, Vlad-Andrei

doi:10.1016/j.quaint.2019.07.002

Cited by 6 publications

(2 citation statements)

References 24 publications

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“…While the drain lines show up as lighter shaded linear features in the NIR orthomosaic, the opposite was true in the red band orthomosaic of the MS imagery. This is because the stressed vegetation has a different spectral reflectance signature (i.e., higher reflectance in the red and lower reflectance in the NIR region of the EM spectrum) as compared to the healthy vegetation [ 71 ]. A more or less uniform drain line signature was observed across the entire field in all the orthmosaics generated from the recent surveys.…”

Section: Resultsmentioning

confidence: 99%

Mapping of Agricultural Subsurface Drainage Systems Using Unmanned Aerial Vehicle Imagery and Ground Penetrating Radar

Koganti

Ghane

Martinez³

et al. 2021

Sensors

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Agricultural subsurface drainage systems are commonly installed on farmland to remove the excess water from poorly drained soils. Conventional methods for drainage mapping such as tile probes and trenching equipment are laborious, cause pipe damage, and are often inefficient to apply at large spatial scales. Knowledge of locations of an existing drainage network is crucial to understand the increased leaching and offsite release of drainage discharge and to retrofit the new drain lines within the existing drainage system. Recent technological developments in non-destructive techniques might provide a potential alternative solution. The objective of this study was to determine the suitability of unmanned aerial vehicle (UAV) imagery collected using three different cameras (visible-color, multispectral, and thermal infrared) and ground penetrating radar (GPR) for subsurface drainage mapping. Both the techniques are complementary in terms of their usage, applicability, and the properties they measure and were applied at four different sites in the Midwest USA. At Site-1, both the UAV imagery and GPR were equally successful across the entire field, while at Site-2, the UAV imagery was successful in one section of the field, and GPR proved to be useful in the other section where the UAV imagery failed to capture the drainage pipes’ location. At Site-3, less to no success was observed in finding the drain lines using UAV imagery captured on bare ground conditions, whereas good success was achieved using GPR. Conversely, at Site-4, the UAV imagery was successful and GPR failed to capture the drainage pipes’ location. Although UAV imagery seems to be an attractive solution for mapping agricultural subsurface drainage systems as it is cost-effective and can cover large field areas, the results suggest the usefulness of GPR to complement the former as both a mapping and validation technique. Hence, this case study compares and contrasts the suitability of both the methods, provides guidance on the optimal survey timing, and recommends their combined usage given both the technologies are available to deploy for drainage mapping purposes.

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Section: Resultsmentioning

confidence: 99%

Mapping of Agricultural Subsurface Drainage Systems Using Unmanned Aerial Vehicle Imagery and Ground Penetrating Radar

Koganti

Ghane

Martinez³

et al. 2021

Sensors

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“…Considering the binary map of potential archaeological features, certain "anomalies" were selected for field validation based on visual inspection (Roman, Tudor-Mihai, Fărcaş, Opreanu & Lăzărescu, 2019), and their morphological patterns (tendency toward regular geometry and orientation) could be associated with anthropic landscape modifications. The topographic survey supported by differential GNSS was applied to archaeological remnants, elements, and structures that were directly visible in the field.…”

Section: Phase D Field Validation and Binary Map Of Potential Archaeo...mentioning

confidence: 99%

Geospatial integration in mapping pre-Hispanic settlements within Aztec empire limits

Miranda-Gómez

Báez²,

Némiga³

et al. 2022

Virtual Archaeol. Rev.

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Mexico’s vast archaeological research tradition has increased with the use of remote sensing technologies; however, this recent approach is still costly in emerging market economies. In addition, the scales of prospection, landscape, and violence affect the type of research that heritage-culture ministries and universities can conduct. In Central Mexico, researchers have studied the pre-Hispanic Settlement Pattern during the Mesoamerican Postclassic (900-1521 AD) within the scope of the Aztec Empire and its conquests. There are settlements indications before and during the rule of the central empire, but the evidence is difficult to identify, particularly in the southwest of the capital, in the transition between the Lerma and Balsas River basins and their political-geographical complexities. This research focuses on a Geographic Information System (GIS)-based processing of multiple source data, the potential prospection of archaeological sites based on spatial data integration from Sentinel-2 optical sensors, Unmanned Aerial Vehicle (UAV), Digital Terrain Model (DTM), Normalized Difference Vegetation Index (NDVI) and field validation. What is revealed is the relationship between terrain morphologies and anthropic modifications. A binary map expresses possible archaeological remnants as a percentage; NDVI pixels and the morphometry values were associated with anthropic features (meso-reliefs with a tendency to regular geometries: slope, orientation, and roughness index); they were then interpreted as probable archaeological evidence. Within archaeological fieldwork, with limited resources (time, funding and staff), this approach proposes a robust method that can be replicated in other mountainous landscapes that are densely covered by vegetation.

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Legacies of Human Land Use Impacts in Central European Forests

Wulf

2021

Progress in Botany

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Documenting ancient anthropogenic signatures by remotely sensing the current vegetation spectral and 3D patterns: A case study at Roman Porolissum archaeological site (Romania)

Cited by 6 publications

References 24 publications

Mapping of Agricultural Subsurface Drainage Systems Using Unmanned Aerial Vehicle Imagery and Ground Penetrating Radar

Mapping of Agricultural Subsurface Drainage Systems Using Unmanned Aerial Vehicle Imagery and Ground Penetrating Radar

Geospatial integration in mapping pre-Hispanic settlements within Aztec empire limits

Legacies of Human Land Use Impacts in Central European Forests

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