Recent work on the R. Hamble wreck near Bursledon, Hampshire

Clarke, Richard; Dean, Martin; Hutchinson, Gillian; McGrail, Seán; Squirrell, J. P.

doi:10.1111/j.1095-9270.1993.tb00389.x

Cited by 7 publications

(15 citation statements)

References 6 publications

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“…As demonstrated above, this horizon of, possibly collapsed, timbers dips towards the south-west. Furthermore, this result is in correspondence with probe test findings [11], indicating the occurrence of buried timbers at a depth of ca. 0.5 m beneath the riverbed.…”

Section: Target Characterisationsupporting

confidence: 89%

“…10b), with a maximum recorded offset between the marine DGPS derived picks and terrestrial RTK dataset of only 0.7 m (an exceptional result considering the positional accuracy of the DGPS system). The dimensions derived from the isopach map also show good correspondence with the limited historical [11] and archaeological [23] evidence available ( Table 2).…”

Section: Data Interpretation and 3d Reconstructionmentioning

confidence: 53%

“…This method provided a relative positional accuracy of approximately ±0.02 m for the timbers. These data were also used to georectify a scanned image of the extant survey plan [11] using ArcView Geographic Information System (GIS) software, providing the accurate basemap as well as absolute timber positions for comparison with the marine geophysical data (Fig. 4).…”

Section: Survey and Data Collectionmentioning

confidence: 99%

“…4. Result of terrestrial RTK survey (¤), used to georectify site plan [11] and calibrate the marine acoustic data. Dotted lines represent the track lines and Chirp lines discussed in this paper are indicated with a grey line.…”

Section: Acoustic Data Processingmentioning

confidence: 99%

“…Even though the wreck site had been identified as early as 1850, it was not until 1993 that the first site plan was published [11]. This plan (Fig.…”

Section: Introductionmentioning

confidence: 99%

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3D reconstruction of a shallow archaeological site from high-resolution acoustic imagery: The Grace Dieu

et al. 2008

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Acoustic imaging and characterisation of buried objects (and in particular archaeological materials) in shallow-water (<5 m) is often unsuccessful owing to problems related to vessel-induced bubble turbulence and the restricted acoustic geometry of the system. A 2D surveying method that tackles these problems has been tested on the known wreck of the Grace Dieu (1418), Henry V's flagship, currently buried within the inter-tidal sediments of the Hamble River. The wooden hull is recognisable in the seismic sections as a high amplitude anomaly underlain by an acoustic blanking zone. Close survey line spacing (ca. 1 m) allowed the construction of time slices, identifying the ovate plan of the hull. High, predominantly negative, reflection coefficients suggest this anomaly corresponds to degraded oak timbers buried within the sediment. Combining the data enabled the construction of a (pseudo)-3D image, revealing the dimensions and shape of the hull remains for the first time.

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Section: Target Characterisationsupporting

confidence: 89%

Section: Data Interpretation and 3d Reconstructionmentioning

confidence: 53%

Section: Survey and Data Collectionmentioning

confidence: 99%

Section: Acoustic Data Processingmentioning

confidence: 99%

“…Even though the wreck site had been identified as early as 1850, it was not until 1993 that the first site plan was published [11]. This plan (Fig.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations