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This report describes the method, output and learning from a trial of a high-definition video survey technique for census of seabirds and windfarm sites. The technique utilises a gyroscopically stabilised camera mount to eliminate aircraft vibration enabling the use of high magnification lenses. This in turn enables the helicopter to fly at a significant distance from the birds, while still maintaining sufficient image quality to identify them and assess certain aspects of their behaviour. The video is coupled with a GPS logging system that associates a geographical location with each video frame, enabling subsequent statistical analysis of the spatial distribution of birds.
HiDef Aerial Surveying Ltd
Other details | ||
Internal code | Internally assigned metadata identifier | 6476 |
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. | 2007, COWRIE, Trial High Definition Video Survey of Seabirds |
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. | 1c4cbcd04529520db9c7efa82882eaca |
Resource Identifier | This is the code assigned by the data owner. | 3203 |
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 | 2024-03-29 |
End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2024-03-29 |
Spatial resolution | This describes the spatial resolution of the dataset or the spatial limitations of the service. | inapplicable |
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'. | notPlanned |
Abstract | The abstract provides a clear and brief statement of the content of the resource. | This report describes the method, output and learning from a trial of a high-definition video survey technique for census of seabirds and windfarm sites. The technique utilises a gyroscopically stabilised camera mount to eliminate aircraft vibration enabling the use of high magnification lenses. This in turn enables the helicopter to fly at a significant distance from the birds, while still maintaining sufficient image quality to identify them and assess certain aspects of their behaviour. The video is coupled with a GPS logging system that associates a geographical location with each video frame, enabling subsequent statistical analysis of the spatial distribution of birds. |
Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | The general findings of the trial are as follows: The system provides sufficient detail to enable reliable identification of birds in most cases. Altitudes in excess of 1km are feasible; cloud-base would typically be the limiting factor. Although this survey was not carried out over an existing windfarm, the altitude and image quality demonstrate that it directly applicable to windfarm survey. Despite higher wind speeds than would be tolerated on a conventional survey, it was possible to conclude that all birds had been observed on most transects with a high degree of confidence. To ensure recognition of smaller species, image width must be fixed at around 30m, which is substantially smaller than the zone in which it is assumed conventional surveys have a 100% detection rate. Transects must therefore be significantly closer than is the case during conventional surveys. Some difficulties were encountered in operating the video equipment in the manner required by the trial and an approach that minimises these effects has been identified. Technical refinements to improve quality and reduce cost have been identified, which it may be appropriate to test in a second survey. |
Additional information | This describes relevant references to the data e.g. reports, articles, websites plus other useful information not captured elsewhere. | Origin: HiDef Aerial Surveying Ltd |
Related keywords | ||
Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Marine Environmental Data and Information Network |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | Research | |
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 | Bird behaviour | |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | Research and Development Activity | |
Geographical coverage | ||
North | The northern-most limit of the data resource in decimal degrees | 60.767202863875 |
East | The eastern-most limit of the data resource in decimal degrees | 2.68743327034 |
South | The southern-most limit of the data resource in decimal degrees | 49.039998103786 |
West | The western-most limit of the data resource in decimal degrees | -9.3331285579078 |
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 | HiDef Aerial Surveying Ltd | |
Position name | Dr M. Mellor | |
Delivery point | HiDef Aerial Surveying Ltd, c/o REACT, Fleswick Court, Westlakes Science and Technology Park, Whitehaven, Cumbria, CA24 3HZ | |
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 | HiDef Aerial Surveying Ltd | |
Position name | Dr M. Mellor | |
Delivery point | HiDef Aerial Surveying Ltd, c/o REACT, Fleswick Court, Westlakes Science and Technology Park, Whitehaven, Cumbria, CA24 3HZ | |
Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
Organisation name | HiDef Aerial Surveying Ltd | |
Individual name | Dr M. Mellor | |
Delivery point | HiDef Aerial Surveying Ltd, Phoenix Court, Earl Street, Cleator Moor | |
Postal code | CA25 5AU | |
Administrative area | Cumbria | |
Country | United Kingdom | |
URL | http://hidef.bioconsult-sh.de/ | |
Resource locators | ||
Locator URL | Web address (URL) that links to the resource | https://www.marinedataexchange.co.uk/details/249/summary |
Web address (URL) that links to the resource | https://www.marinedataexchange.co.uk | |
Dataset constraints | ||
21 Conditions for access and use – Use limitation | Any restrictions imposed on accessing the resource. | no conditions apply |
Available data formats | ||
Data format name | Format in which digital data can be provided for transfer | |
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. | 2007-09-01 |
Date of creation | The date that the resource was created. | 2007-01-01 |
Metadata date | The date when the content of this metadata record was last updated. | 2009-05-06 |
Metadata standard name | The name of the metadata standard used to create this metadata | MEDIN Discovery Metadata Standard |
Metadata standard version | The version of the MEDIN Discovery Metadata Standard used to create the metadata record | Version 2.3.5 |
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