2010-2011, Wessex Archaeology, Zone 9 Celtic Array, Archaeological Assessments series https://portal.medin.org.uk/portal/start.php?tpc=015_2188555a9b8f4dcda5915912317f0225 Wessex Archaeology was appointed by CERI (now Celtic Array) to assist in the archaeological assessment of Zone 9 Irish Sea. As part of this assessment Wessex Archaeology was asked to carry out an archaeological assessment of geophysical data arising from investigations of four test areas designated as MM1, MM2, MM3 and MM4 for the positioning of Met Masts within the Irish Sea Zone development area. The geophysical data consisted of sidescan sonar and sub-bottom profiler (sparker) acquired by Marin Mätteknik AB (MMT) from February to April 2010. This assessment focused on the potential for remnant land surfaces that may contain archaeological material relating to times of lower sea level; and the potential for the remains of maritime craft or aircraft of cultural heritage importance within the area that may be impacted upon by the proposed scheme.. Corresponding Centrica Document No: R3-D-EV-132-0000-000000-004; R3-D-EV-132-0000-000000-007 Available dataset : Reports and drawings in pdf formats, 201410 201410