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Metadata: Development and Field Trials of a Drop-Down Video System (2003)
Abstract:
Envision Mapping was contracted by the Countryside Council for Wales (CCW) to develop a purpose built drop-down video system suitable for marine monitoring work. Detailed specifications were prepared and the system was manufactured by C-Technics, a specialist underwater video systems manufacturer. The system was trialled during the manufacturing process and modifications made prior to the system being completed. Upon completion the system was commissioned at three locations in Wales. This tested the system in field conditions for both operational suitability and also enabled the system to be modified to best suit the requirements of CCW.
Data holder:
Natural Resources Wales (NRW)
Click on the red button for resource contact details:
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| Other details | ||
| Internal code | Internally assigned metadata identifier | 8654 |
| 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. | Development and Field Trials of a Drop-Down Video System (2003) |
| 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. | NRW_DS110096 |
| Resource Identifier | This is the code assigned by the data owner. | 4f4c4942-4343-5764-6473-313130303936 |
| 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. | dataset |
| Start date | This describes the date the resource starts. This may only be the year if month and day are not known | 2003-10-01 |
| End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2003-10-05 |
| 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. | Envision Mapping was contracted by the Countryside Council for Wales (CCW) to develop a purpose built drop-down video system suitable for marine monitoring work. Detailed specifications were prepared and the system was manufactured by C-Technics, a specialist underwater video systems manufacturer. The system was trialled during the manufacturing process and modifications made prior to the system being completed. Upon completion the system was commissioned at three locations in Wales. This tested the system in field conditions for both operational suitability and also enabled the system to be modified to best suit the requirements of CCW. |
| Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | The system was deployed in various sea states over a 5 day period, in Tremadog Bay, close to St Tudwal’s Islands, the Menai Strait and Milford Haven. The system was deployed from the RIB Aplysia and the RV Skalmey. The methods used were similar to the procedural and operational guidelines presented in the report, but various configuration of camera position, buoyancy and towing techniques were tried. The equipment and deployment techniques were refined and adjusted to produce the optimal configuration and operational techniques for various conditions and these methods are presented in the procedural and operational guidelines. Recommendations are made for methods of data collection, the effects of weather conditions, sea state and tides on the deployment of the system. Because the system is to be used on various vessels, examples of mobilisation configurations are presented. |
| Related keywords | ||
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Environmental monitoring facilities |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | marine and freshwater inventory | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | marine monitoring (see also marine surveys) | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Menai Strait | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Tremadog Bay | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | drop-down video | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | trials | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Milford Bay | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Unspecified | |
| Geographical coverage | ||
| North | The northern-most limit of the data resource in decimal degrees | 53.33383052 |
| East | The eastern-most limit of the data resource in decimal degrees | -3.78804764 |
| South | The southern-most limit of the data resource in decimal degrees | 51.31414057 |
| West | The western-most limit of the data resource in decimal degrees | -5.4933842 |
| Regional sea | benthic boundary layer | |
| St. George's Channel | ||
| Celtic Sea | ||
| Irish Sea | ||
| Menai Strait | ||
| 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 | Natural Resources Wales (NRW) | |
| Delivery point | Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales | |
| enquiries@naturalresourceswales.gov.uk | ||
| URL | http://naturalresources.wales/?lang=en | |
| Role | The owner is the person or organisation that owns the resource. | owner |
| Organisation name | Natural Resources Wales (NRW) | |
| Delivery point | Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales | |
| enquiries@naturalresourceswales.gov.uk | ||
| URL | http://naturalresources.wales/?lang=en | |
| 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 | Natural Resources Wales (NRW) | |
| Delivery point | Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales | |
| enquiries@naturalresourceswales.gov.uk | ||
| URL | http://naturalresources.wales/?lang=en | |
| Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
| Organisation name | Countryside Council for Wales (CCW) | |
| Delivery point | Countryside Council for Wales, Maes y Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW | |
| enquiries@naturalresourceswales.gov.uk | ||
| URL | http://naturalresourceswales.gov.uk/splash?orig=/ | |
| Role | The distributor is the person or organisation that distributes the resource. | distributor |
| Organisation name | Natural Resources Wales (NRW) | |
| Delivery point | Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales | |
| enquiries@naturalresourceswales.gov.uk | ||
| URL | http://naturalresources.wales/?lang=en | |
| 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 | This states any limitations on access to the data. Multiple occurences are allowed here. One entry shall be from the INSPIRE Metadata registry and the other free text should be part of the resource `Have specific limitations`. | There are no access restrictions to this data. NRW may release, publish or disseminate it freely. |
| no limitations | ||
| 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. | © CNC/NRW 2004. There are no use restrictions on this data. Recipients may re-use, reproduce, disseminate this data free of charge in any format or medium, provided they do so accurately, acknowledging both the source and NRW's copyright, and do not use it in a misleading context. It is the recipient's responsibility to ensure the data is fit for the intended purpose, that dissemination or publishing does not result in duplication, and that it is fairly interpreted. Advice on interpretation should be sought where required. To avoid re-using old data, users should periodically obtain the latest version from the original source |
| Available data formats | ||
| Data format | Format in which digital data can be provided for transfer | Documents |
| Format in which digital data can be provided for transfer | Delimited (MS Excel) | |
| Format in which digital data can be provided for transfer | Geographic Information System (MapInfo) | |
| Format in which digital data can be provided for transfer | Movie (mpg) | |
| Format in which digital data can be provided for transfer | Image (jpeg) | |
| 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. | 2004-01-31 |
| Harvest date | The date which this record has been (re)harvested from the provider. | 2026-04-19 |
| Metadata date | The date when the content of this metadata record was last updated. | 2026-03-03 |
| 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 |