Mellett C.L.,University of Liverpool |
Hodgson D.M.,University of Liverpool |
Lang A.,University of Liverpool |
Mauz B.,University of Liverpool |
And 2 more authors.
Landscape response to post-glacial relative sea level during the Quaternary is documented using an integrated dataset of multibeam bathymetry and 2D seismic reflection profiles from the Hastings Bank area in the north-eastern English Channel. Mapping of nine seismic stratigraphic units calibrated to lithological information from multiple vibrocores has enabled the interpretation of fluvial, shoreface, barrier, washover fan, back-barrier and tidal environments of deposition. The interpreted landscape evolution is as follows: (i) fluvial incision of bedrock during sea-level lowstand; (ii) progradation of a shoreline and then development of a barrier complex as sea-level rose; (iii) recycling and breaching of the barrier; (iv) rapid drowning of the barrier complex; (v) landward migration of the shoreline through continued sea-level rise; and (vi) complete abandonment and submarine preservation of the barrier complex during sea-level highstand. The previously undocumented, yet exceptionally well preserved, drowned barrier complex at Hastings Bank records phases of barrier initiation, breakdown and retreat, and documents coastal response to high rates of relative sea-level rise. Initial development of the barrier complex required a sufficient supply of sediment, maintained by offshore sources, to keep pace with rising sea level, which permitted progradation of a shoreline and development of a barrier complex. Inherited topography in the north-eastern English Channel is an important factor in the development of the barrier complex. Phases of barrier breakdown occur when sediment supply is outpaced by a rapid increase in accommodation controlled by existing basement morphology and rising sea levels. Subsequently, the barrier responds through internal reorganisation by breaching and reworking of existing sediment bodies. Barrier retreat is characterised by a phase of 'sediment surplus' overstepping under rapid rates of sea-level rise where increased water depths limit wave reworking, followed by a phase of discontinuous retreat where the shoreline steps back through 'sediment deficit' overstepping. Hastings Bank presents a rare opportunity to examine the conditions and processes that control barrier response to sea-level rise and, to assess the preservation potential of barrier deposits as a function of the style of retreat. © 2012 Elsevier B.V. Source
Sutherland W.J.,University of Cambridge |
Albon S.D.,Macaulay Institute |
Allison H.,The Woodland Trust |
Armstrong-Brown S.,Royal Society for the Protection of Birds |
And 26 more authors.
Journal of Applied Ecology
1. The conservation of biodiversity depends upon both policy and regulatory frameworks. Here, we identify priority policy developments that would support conservation in the UK in the light of technological developments, changes in knowledge or environmental change. 2. A team of seven representatives from governmental organizations, 17 from non-governmental organizations and six academics provided an assessment of the priority issues. The representatives consulted widely and identified a long-list of 117 issues. 3. Following voting and discussion during a 2-day meeting, these were reduced to a final list of 25 issues and their potential policy options and research needs were identified. Many of the policies related to recent changes in approaches to conservation, such as increased interest in ecosystem services, adaptation to climate change and landscape ecology. 4. We anticipate that this paper will be useful for policy makers, nature conservation delivery agencies, the research community and conservation policy advocates. 5. Although many of the options have global significance, we suggest that other countries consider an equivalent exercise. We recommend that such an exercise be carried out in the UK at regular intervals, say every 5 years, to explore how biodiversity conservation can best be supported by linked policy development and research in a changing world. 6. Synthesis and applications. Opportunities for policy development were prioritized and for each of the top 25 we identified the current context, policy options and research questions. These largely addressed new issues relating to developing topics such as ecosystem services, landscape planning and nanotechnology. We envisage that this will largely be used by researchers wishing to make a contribution to potential policy debates. © 2010 The Authors. Journal compilation © 2010 British Ecological Society. Source
Crawled News Article
Vattenfall will advance with two projects in the East Anglia zone area The Crown Estate has unveiled final arrangements for two of Britain's major Round 3 offshore wind zones after reaching project-specific deals with developers that replace their original development agreements.
Crawled News Article
The Crown Estate, one of the largest property owners in the United Kingdom, has launched a program of offshore leasing for small-scale marine hydrokinetic (MHK) testing and demonstration projects less than 3 MW.
Crawled News Article
Swedish energy firm Vattenfall announced this week that it has started development on the 3.6 GW Norfolk Vanguard offshore wind farm. Last week, the UK’s Crown Estate announced finalized revisions to its Round 3 offshore wind farm development agreements with DONG Energy, ScottishPower Renewables, and Vattenfall — though at the time, only DONG Energy’s plans to develop Hornsea Projects Two, Three, and Four were fully revealed. Less than a week later, and Vattenfall has announced the specifics of its revised agreement with the Crown Estate, the national body entrusted with safeguarding the country’s land, onshore and off. Specifically, as was announced, Vattenfall is moving forward with two projects in what used to be the northern half of the East Anglia Offshore Wind Farm development zone. The new wind farms will be called Norfolk Vanguard and Norfolk Boreas, both of which are set to have a target capacity of 1.8 GW. Development of Norfolk Boreas will start in 2017, however Vattenfall announced Tuesday that development of Norfolk Vanguard has already commenced, with Vattenfall taking the project into the planning process. Intended to be developed 47 kilometers off the coast, Vanguard will generate the equivalent electricity necessary to supply more than 1.3 million UK households. “Vattenfall wants to work with Norfolk to capture the benefits of offshore wind,” said Ruari Lean, Vattenfall’s Project Manager for Norfolk Vanguard. “There is an opportunity for Norfolk business and securing Norfolk jobs. There is also an opportunity to make a telling impact in the UK’s contribution to tackling climate change.” “As the industry grows costs will fall; that’s why offshore wind has a great future in the UK,” added Andy Paine, Vattenfall’s Project Director for Norfolk Vanguard and head of UK offshore wind. “An industry is emerging in Norfolk and we are convinced that the region is well placed to secure an even bigger role in the sector.” The Crown Estate’s actions have played into the existing confidence building around the UK’s offshore wind industry, highlighted earlier this year by both DONG Energy and Vattenfall, who were “optimistic” that the UK Government was set to back its nations offshore wind industry. Get CleanTechnica’s 1st (completely free) electric car report → “Electric Cars: What Early Adopters & First Followers Want.” Come attend CleanTechnica’s 1st “Cleantech Revolution Tour” event → in Berlin, Germany, April 9–10. Keep up to date with all the hottest cleantech news by subscribing to our (free) cleantech newsletter, or keep an eye on sector-specific news by getting our (also free) solar energy newsletter, electric vehicle newsletter, or wind energy newsletter.