Research and analysis
Redefining physical oceanographic conditions to determine extent of sediment plumes as a result of dredge disposal at disposal sites
Evidence requirement R077: Understanding extent of sediment plumes as a result of dredge disposal at disposal sites
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Details
Requirement R077
To understand extent of sediment plumes as a result of dredge disposal at disposal sites
Requirement detail
The Marine Management Organisation (MMO) requires physical models to improve understanding of sediment transport routes, during dredge disposal operations at designated disposal sites, to provide further evidence and support decisions around licensing conditions.
To consider:
- physical conditions have an influence on the environmental impact of dredge disposal (for example, sediment plumes, changes in conditions of substrate, seabed morphology and removal/smoothering of subtidal benthic species and communities)
- existing physical conditions are defined, for example, as part of the process involved in designating a new disposal site
- physical oceanographic information or approach (see existing evidence) may be used to improve understanding other evidence needs, such as defining local physical conditions at marine protected areas, for example the effectiveness of closed areas (larval dispersal) as well as in planning to support descriptions of habitats
MMO use
Marine licensing:
- identify disposal sites where additional management measures may be required to reduce possible extent of sediment plumes
- form part of evidence base for marine licensing
Marine planning:
- determine if evidence acquired can be used to support marine planning
Marine conservation:
- determine if evidence acquired can be used to inform future decisions marine conservation
External interest
Cefas, Natural England, Environment Agency, JNCC
Delivery target
2016, Quarter 4
Published 10 August 2016
Last updated 26 August 2016 + show all updates
Last updated 26 August 2016 + show all updates
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Document updated
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First published.