New sources of literature from 2002 to 2012 identified by the updated SCOPAC Bibliographic Database were reviewed and relevant information was summarised and incorporated into the descriptive text.

Net beach sediment transport volumes were produced from long-term difference models from two surveys broadly either 10 years (Southeast) or 5 years (Southwest) apart, dependent on data availability. Typically, topographic survey data was used for the difference modelling, supplemented by lidar data if the topographic data proved less suitable. Sediment budgets were subsequently derived (for those maps where sufficient data was available to support a reasonable budget calculation) according to the principles of Sediment Budget Analysis System (SBAS) (Rosati and Kraus 1999). The sediment budgets concentrated on change above Mean Low Water since very little information was available about sub-tidal or river and estuarine net sediment volume change. Cliff inputs were estimated from lidar or aerial photography. Engineering intervention was included in the sediment budgets in terms of beach replenishment and/or recycling volumes. Budgets were balanced across each map, and within a coastal sediment transport sub-cell (Motyka and Brampton 1993), and the resulting sediment transport rates and directions were compared to those shown in the 2004 mapping.

Any resulting anomalies with the 2004 Sediment Transport Study were subsequently discussed with local coastal engineers. Only where there was substantive evidence, either from the sediment budget analysis or from recent literature, that a 2004 arrow was no longer appropriate in some way, was the arrow modified and an explanation included in the supporting text. If new results or literature served to confirm or validate 2004 mapping, this was noted in the text whilst where results were inconclusive, no changes were made to either the mapping or the text.


ROSATI, J. AND KRAUS, N. (1999). Sediment Budget Analysis System (SBAS). US Army Corps of Engineers.

MOTYKA, J. AND BRAMPTON, A. (1993). Coastal Management, Mapping of Littoral Cells. HR Wallingford.


Copyright © MMXVII SCOPAC Sediment Transport Study. All Rights Reserved


About the Study

SCOPAC Committee

Chairperson Councillor Mrs M Penfold MBE, West Dorset District Council.

Vice-Chair Councillor Jackie Branson, Havant Borough Council.

Technical assistance provided to Councillors by Mr Lyall Cairns (Southern Coastal Group Chair) and Dr Samantha Cope (SCOPAC Research Chair).

Introduction & Acknowledgements


Map Design, Symbols & Reliability

User Guide

Bibliographic Database

The STS 2012 update

The 2012 update of the SCOPAC Sediment Transport Study (STS) was funded by the Environment Agency under FDGiA, grant number LDW 41230, with additional contributions from SCOPAC.  

It is referenced as: New Forest District Council (2017). 2012 Update of Carter, D., Bray, M., & Hooke, J., 2004 SCOPAC Sediment Transport Study,

Sediment Transport Study 2012



Start Point to Berry Head


Berry Head to Hope's Nose (Tor Bay)


Hope's Nose, Torquay to Holcombe


Holcombe to Straight Point (including Exe Estuary)


Straight Point to Otterton Ledge


Otterton Ledge to Beer Head  


Beer Head to Lyme Regis


Lyme Regis to West Bay


West Bay to Portland Bill  


Isle of Portland and Weymouth Bay  


Redcliff Point to Durlston Head (Purbeck)  


Durlston Head to Handfast Point


Handfast Point to South Haven Point (Studland Bay)  


Poole Harbour


Poole Harbour Entrance to Hengistbury Head (Poole Bay)


Hengistbury Head to Hurst Spit (Christchurch Bay)

Quaternary History of the Solent


Hurst Spit to Calshot Spit (Western Solent Mainland)  


Southampton Water  


River Hamble to Portsmouth Harbour Entrance  


Portsmouth, Langstone and Chichester Harbours  


Portsmouth Harbour Entrance to Chichester Harbour Entrance


North West Isle of Wight


North East Isle of Wight


South West Isle of Wight  


South East Isle of Wight  


East Head to Pagham, West Sussex


Pagham to Littlehampton


Littlehampton to Shoreham-by-Sea  


Shoreham-By-Sea to Newhaven  


Newhaven to Beachy Head  

Introduction & Acknowledgements


Map Design, Symbols & Reliability

User Guide