The Żonqor coastline, southeast Malta, displays an exceptional range of geomorphic signatures of ... more The Żonqor coastline, southeast Malta, displays an exceptional range of geomorphic signatures of extreme coastal events. This paper brings together evidence acquired from a field survey, analysis of time-sequential imagery, and hydrodynamic modelling to investigate the histories of boulder groups identified by their intrinsic and contextual characteristics. Clear differences are revealed between the distribution of boulders recently moved and those of considerable age. Tracking the movement of boulders since 1957 confirms that storms of surprisingly frequent interval are capable of complex boulder movements, including lifting of megaclasts. Scrutiny of the ancient boulders, including weathering features and fascinating landward-facing (reverse) imbrication, cautiously suggests tsunami as the agent for their emplacement. A novel method is developed for depicting the velocity decay profiles of hypothetical waves, which overcomes some of the limitations of the Nott approach. Applied he...
ABSTRACT This presentation provides a summary of the completed Solent coastal habitat management ... more ABSTRACT This presentation provides a summary of the completed Solent coastal habitat management plan and then goes on to discuss the significance of the plan and its further implications for shoreline management and coastal habitat conservation.
ABSTRACT This report aims to provide an analysis and interpretation of changes occurring along th... more ABSTRACT This report aims to provide an analysis and interpretation of changes occurring along the beach and foreshore of the Cakeham, West Wittering and East Head frontage. It updates and extends the geographical coverage of a similar previous study (Bray, 2007). It is concerned primarily with the period August 2004 to October 2009, but includes analysis of some profile data extending up to December 2009. The objectives are as follows: 1. Identify the main changes occurring to the beach and foreshore for 2006-09 covering areas defined by the Bray (2007) study, including potentially sensitive areas such as East Head spit neck and the Hinge; 2. Extend analysis to cover the Cakeham frontage (2004 – 09) including assessment of recent sand accumulation; 3. Attempt to provide explanations for the changes occurring, including estimations, where possible of likely trends for the future; 4. Comment upon potential implications for on-going and future monitoring and management at East Head, West Wittering and Cakeham. Although the brief was primarily to evaluate and report upon the beach and foreshore changes within the specified areas and time periods, likely future changes and their implications for management will be discussed where applicable.
The paper reports on research funded by SCOPAC into preparing for the impacts of climate change. ... more The paper reports on research funded by SCOPAC into preparing for the impacts of climate change. Operating Authorities need to make adequate allowances for potential impacts of climate change in future planning of land uses and defences. Whilst there has been considerable research into global climate change, there is presently little practical guidance for Authorities on accounting for the impacts in defence planning, other than for relative rise in mean sea level. For the SCOPAC region on the central south coast of England, this paper reviews historical data and presents an updated analysis of sea levels, wave climates and storm events. New work to hindcast wave conditions using future scenario wind data is presented. Future ‘coastal climate change scenarios’ are developed, comprising the likely range of sea-levels, extreme water levels, wave climates, temperature and effective rainfall that can be expected over the next 100 years. The potential effects of these scenarios on coasta...
... By contrast, the coast to the west is fringed by much smaller pocket beaches at Char-mouth, S... more ... By contrast, the coast to the west is fringed by much smaller pocket beaches at Char-mouth, Seatown and Eype, separated by headlands and ... Within the major spatial unit (Lyme Regis-Isle of Portland), five sub-cells comprising Spit-tles, Charmouth, Seatown, Eype and Chesil ...
The Żonqor coastline, southeast Malta, displays an exceptional range of geomorphic signatures of ... more The Żonqor coastline, southeast Malta, displays an exceptional range of geomorphic signatures of extreme coastal events. This paper brings together evidence acquired from a field survey, analysis of time-sequential imagery, and hydrodynamic modelling to investigate the histories of boulder groups identified by their intrinsic and contextual characteristics. Clear differences are revealed between the distribution of boulders recently moved and those of considerable age. Tracking the movement of boulders since 1957 confirms that storms of surprisingly frequent interval are capable of complex boulder movements, including lifting of megaclasts. Scrutiny of the ancient boulders, including weathering features and fascinating landward-facing (reverse) imbrication, cautiously suggests tsunami as the agent for their emplacement. A novel method is developed for depicting the velocity decay profiles of hypothetical waves, which overcomes some of the limitations of the Nott approach. Applied he...
ABSTRACT This presentation provides a summary of the completed Solent coastal habitat management ... more ABSTRACT This presentation provides a summary of the completed Solent coastal habitat management plan and then goes on to discuss the significance of the plan and its further implications for shoreline management and coastal habitat conservation.
ABSTRACT This report aims to provide an analysis and interpretation of changes occurring along th... more ABSTRACT This report aims to provide an analysis and interpretation of changes occurring along the beach and foreshore of the Cakeham, West Wittering and East Head frontage. It updates and extends the geographical coverage of a similar previous study (Bray, 2007). It is concerned primarily with the period August 2004 to October 2009, but includes analysis of some profile data extending up to December 2009. The objectives are as follows: 1. Identify the main changes occurring to the beach and foreshore for 2006-09 covering areas defined by the Bray (2007) study, including potentially sensitive areas such as East Head spit neck and the Hinge; 2. Extend analysis to cover the Cakeham frontage (2004 – 09) including assessment of recent sand accumulation; 3. Attempt to provide explanations for the changes occurring, including estimations, where possible of likely trends for the future; 4. Comment upon potential implications for on-going and future monitoring and management at East Head, West Wittering and Cakeham. Although the brief was primarily to evaluate and report upon the beach and foreshore changes within the specified areas and time periods, likely future changes and their implications for management will be discussed where applicable.
The paper reports on research funded by SCOPAC into preparing for the impacts of climate change. ... more The paper reports on research funded by SCOPAC into preparing for the impacts of climate change. Operating Authorities need to make adequate allowances for potential impacts of climate change in future planning of land uses and defences. Whilst there has been considerable research into global climate change, there is presently little practical guidance for Authorities on accounting for the impacts in defence planning, other than for relative rise in mean sea level. For the SCOPAC region on the central south coast of England, this paper reviews historical data and presents an updated analysis of sea levels, wave climates and storm events. New work to hindcast wave conditions using future scenario wind data is presented. Future ‘coastal climate change scenarios’ are developed, comprising the likely range of sea-levels, extreme water levels, wave climates, temperature and effective rainfall that can be expected over the next 100 years. The potential effects of these scenarios on coasta...
... By contrast, the coast to the west is fringed by much smaller pocket beaches at Char-mouth, S... more ... By contrast, the coast to the west is fringed by much smaller pocket beaches at Char-mouth, Seatown and Eype, separated by headlands and ... Within the major spatial unit (Lyme Regis-Isle of Portland), five sub-cells comprising Spit-tles, Charmouth, Seatown, Eype and Chesil ...
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Papers by Malcolm Bray