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Metadata: 2005-2007, RSPB, Gunfleet Sands 1 and 2, Environmental survey (Ornithological Studies)
Abstract:
This project consists of survey figures for both boat and aerial surveys which were undertaken to assess the potential impacts of the Gunfleet Sands development. Also included is an impact assessment methodology report for ornithology.
Data holder:
The Crown Estate
| Other details | ||
| Internal code | Internally assigned metadata identifier | 29831 |
| Title | The title is used to provide a brief and precise description of the dataset such as 'Date', 'Originating organisation/programme', 'Location' and 'Type of survey'. All acronyms and abbreviations should be reproduced in full. | 2005-2007, RSPB, Gunfleet Sands 1 and 2, Environmental survey (Ornithological Studies) |
| Alternative title | The purpose of alternative title is to record any additional names by which the dataset may be known. | Environmental survey (Ornithological Studies) |
| File Identifier | The File Identifier is a code, preferably a GUID, that is globally unique and remains with the same metadata record even if the record is edited or transferred between portals or tools. | 215b377b-fbf1-4955-9875-7c76afaa5666 |
| Resource Identifier | This is the code assigned by the data owner. | TCE-475 |
| Resource type | The resource type will likely be a dataset but could also be a series (collection of datasets with a common specification) or a service. | series |
| Start date | This describes the date the resource starts. This may only be the year if month and day are not known | 2005-01-01 |
| End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2007-02-28 |
| Frequency of updates | This describes the frequency with which the resource is modified or updated i.e. a monitoring programme that samples once per year has a frequency that is described as 'annually'. | unknown |
| Abstract | The abstract provides a clear and brief statement of the content of the resource. | This project consists of survey figures for both boat and aerial surveys which were undertaken to assess the potential impacts of the Gunfleet Sands development. Also included is an impact assessment methodology report for ornithology. |
| Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | erial surveys used for this report were undertaken using a methodology developed by the Danish National Environment Research Institute (NERI) (Kahlert et al. 2000 and further refined by Camphuysen et al. 2004). Aerial surveys were undertaken by the Wildfowl and Wetlands Trust Wetland Advisory Service using experienced observers who have undertaken aerial survey previously in relation to offshore wind farms. Several Partenavia PN68 aircraft were used, flying at an altitude of 250 ft and at a speed of approximately 200 kmh-1. The location of the plane was recorded every five seconds using a GPS. Combining the time at which birds were encountered and the track flown by the plane (which is recorded continuously with GPS), the locations of observed birds can be calculated with considerable accuracy (often to within a few hundred metres). Transects were flown with a spacing of 2 km. Transects were primarily orientated in a north south direction so that they run perpendicular to major environmental gradients (primarily sea depth) and because this orientation reduces the effect of glare during the survey which aids the detectability and identification of birds. A 12m boat was used that allowed observers an eye height above water of 2.2m and was of sufficient draft to enable transects across the Gunfleet sand bank in water of 2m or less depth. The choice of survey date each month was associated with a tidal regime that enabled the dawn or dusk access to and from the berth at Wivenhoe at or near high tide. For safety reasons, transects across Gunfleet Sand coincided with high water and these were restricted to slightly deeper channels. Similarly it was not possible to arrange survey transects in a regular grid perpendicular to the bathymetric/hydrographic features in this sector of the Thames estuary. Thus, during each day’s survey that lasted between 4.5-6.5h for the first nine surveys the boat retraced some of the previous routes. Within the data analysis for sea birds the observations for repeat transects were not used since the survey boat itself could displace individuals on or near the sea surface during a previous transect and under count them or conversely double count the same individuals if they had remained in place. From survey 10 onwards of 5-8h duration there were fewer repeat transects as a wider zone around the development area was covered. However, the nature of the day’s survey transects that are constrained by water depth around the Gunfleet bank will result in a higher probability of double counting species such as Red-throated Diver. The contact rate with land birds and wildfowl and waders in flight included the full survey time and are represented as numbers/h of survey. A 180° scan method was employed up to survey 19 on 3 May 2002 followed by a 90° scan to the present surveys (Komdeur et al. 1992). The three surveys in February 2002 were based on a different vessel of 18m length with an observer eye height of 3m above sea level and covered up to 16km to the northeast of the development area. An experienced member of the 1980-90 European ‘seabird at sea’ team undertook independent verification of the surveyors and their methodology. |
| Additional information | This describes relevant references to the data e.g. reports, articles, websites plus other useful information not captured elsewhere. | Origin: RSPB Eastern England |
| Related keywords | ||
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Bird counts |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Bird taxonomy-related abundance per unit area of surface | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Consenting | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Agreement for Lease Area | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Protected sites | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Atmospheric conditions | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Species distribution | |
| Geographical coverage | ||
| North | The northern-most limit of the data resource in decimal degrees | 51.74674900937 |
| East | The eastern-most limit of the data resource in decimal degrees | 1.2878118030763 |
| South | The southern-most limit of the data resource in decimal degrees | 51.704574103408 |
| West | The western-most limit of the data resource in decimal degrees | 1.1990986266643 |
| Responsible organisations | ||
| Role | The point of contact is person or organisation with responsibility for the creation and maintenance of the metadata for the resource. | pointOfContact |
| Organisation name | Orsted | |
| Position name | Project Manager | |
| Phone | +45 4517 1022 | |
| info@orsted.com | ||
| Role | The custodian is the person or organisation that accepts responsibility for the resource and ensures appropriate care and maintenance. If a dataset has been lodged with a Data Archive Centre for maintenance then this organisation is be entered here. | custodian |
| Organisation name | The Crown Estate | |
| Phone | +44 020 7851 5000 | |
| enquiries@thecrownestate.co.uk | ||
| Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
| Organisation name | RSPB | |
| wildlife@rspb.org.uk | ||
| Role | The distributor is the person or organisation that distributes the resource. | distributor |
| Organisation name | The Crown Estate | |
| Phone | +44 020 7851 5000 | |
| enquiries@thecrownestate.co.uk | ||
| Role | The owner is the person or organisation that owns the resource. | owner |
| Organisation name | Orsted | |
| info@orsted.com | ||
| Resource locators | ||
| Locator URL | Web address (URL) that links to the resource | https://www.marinedataexchange.co.uk/details/TCE-475/summary |
| Web address (URL) that links to the resource | https://www.marinedataexchange.co.uk | |
| Dataset constraints | ||
| 20.1 Limitations on Public Access - Access constraints | This states `otherRestrictions` from ISO vocabulary RestrictionCode and is an INSPIRE/GEMINI requirement. | otherRestrictions |
| 20.2 Limitations on Public Access - Other constraints | There will be no limitations when published on the Marine Data Exchange | |
| 21.1 Conditions for Access and Use - Use constraints | This states `otherRestrictions` from ISO vocabulary RestrictionCode and is an INSPIRE/GEMINI requirement. | otherRestrictions |
| 21.2 Conditions for Access and Use - Other constraints | This states any constraints on use of the data. Multiple conditions can be recorded for different parts of the data resource. If no conditions apply, then `No condtions apply` is recorded. This uses free text. | Data Must be used in accordance to the Marine Data Exchange's Terms of Use: https://www.marinedataexchange.co.uk/content/info/terms-of-use |
| Version info | ||
| Date of publication | The publication date of the resource or if previously unpublished the date that the resource was made publicly available via the MEDIN network. | 2021-05-17 |
| Date of creation | The date that the resource was created. | 2006-01-22 |
| Harvest date | The date which this record has been (re)harvested from the provider. | 2026-08-19 |
| Metadata date | The date when the content of this metadata record was last updated. | 2026-08-17 |
| Metadata standard name | The name of the metadata standard used to create this metadata | MEDIN |
| Metadata standard version | The version of the MEDIN Discovery Metadata Standard used to create the metadata record | 3.1.2 |