The copyright of materials derived from the British Geological Survey's work is vested in the Natural Environment Research Council [NERC]. No part of this work may be reproduced or transmitted in any form or by any means, or stored in a retrieval system of any nature, without the prior permission of the copyright holder, via the BGS Intellectual Property Rights Manager. Use by customers of information provided by the BGS, is at the customer's own risk. In view of the disparate sources of information at BGS's disposal, including such material donated to BGS, that BGS accepts in good faith as being accurate, the Natural Environment Research Council (NERC) gives no warranty, expressed or implied, as to the quality or accuracy of the information supplied, or to the information's suitability for any use. NERC/BGS accepts no liability whatever in respect of loss, damage, injury or other occurence however caused.

unrestricted use, copyright acknowledgement - Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced Historic Scotland materials "Contains Historic Scotland materials ©Crown Copyright [year]"

Geophysical equipment types used included: Pinger and Sidescan Sonar. The survey was undertaken by Wessex Archaeology. Navigation data were recorded in WGS 84. A Klein 3000 digital sidescan sonar system was used for the survey. This sidescan sonar system collects data at both 100 kHz and 500 kHz simultaneously and the 500 kHz data was processed to enable the identification of anomalies. Survey lines were run at 45-metre spacing throughout the survey area with a range setting of 50 metres. This ensured data coverage of greater than 200%. The data was collected digitally on a workstation using Klein SonarPro software, which stored the data in a suitable format for post-processing. A Geoacoustics pinger source was used for the sub-bottom profile. This system consists of a source and a receiver transducer housed within a single unit. The source transducer generates an acoustic pulse downwards into the water column. The broad band frequency of this acoustic pulse is approximately centred on the 5 kHz frequency.

MEDIN Discovery Metadata Standard

Version 2.3.5