© OpenStreetMap contributors
This collection comprises physical measurements of the water column and surface waters, together with supporting discrete chemical and biological datasets. The data were obtained from the Irish Sea and in the sea off western Scotland over 4 periods: 17 and 23 August 2011 and 06 - 07 March 2012, all collected on Seiont IV cruises and 15 - 22 June 2012 obtained using the RV Prince Madog. These datasets and their collection methods are as follows: 1) LISST particle size data - A LISST 100X type C laser diffraction instrument was lowered in a frame from the ship and the depth-averaged volumes of particles in 32 size classes in a water column from the surface to a depth of 10 m (or the bottom, where shallower) were measured. 2) CTD profiles of conductivity, temperature, sigma-theta and salinity. At each station, a CTD with attached rosette was lowered, with data measurements taken. 3) SPM, mineral SPM, chlorophyll and CDOM water sample data. At each station a surface water sample was collected either in a bucket or in a rosette sampler on the CTD and triplicate sub-samples were filtered and subsequently dried and weighed, baked (at 500°C for 3 hours to remove organic material) and weighed again. 4) CDOM discrete samples taken from CTD and underway. Surface water samples collected at each station were filtered through 0.2 µm filters and the spectral variation of the absorption coefficient of the dissolved material in the filtrate was measured in a 10 cm cell in a Shimadzu 1600 dual-beam spectrophotometer, using distilled water as a reference.. 5) Water column inherent optical property profiles. Measurements of beam attenuation were made using a Sea Tech T1000 transmissometer (20cm pathlength) fixed to the CTD on the RV Prince Madog. At some stations, vertical profiles of downwelling irradiance and upwelling radiance were made with a PRR radiometer. These cruises formed the fieldwork component of the NERC-funded project “Measurement of the abundance and optical significance of sub-micron sized particles in the ocean”. The project aimed to use different magnifications and commercially available in-situ particle sizing instruments to create a package of instruments for measuring the undisturbed particle size distributions from 0.2 µm to 1 mm. This package will first be used in a turbulence tank to 'film' the flocculation process. The insight this gives will be used to construct new theoretical models of the particle size distribution. Because the camera also measures the shape of the particles, differences between observed and calculated optical properties can be compared, for the first time, to particle shape. Finally, the complete dataset will be collated to determine what size particles, under what conditions, are primarily responsible for the signals seen in visible band satellite images of the oceans. The NERC-funded project was held under lead grant reference NE/H022090/1 with child grants NE/H020853/1 and NE/H021493/1. The lead grant was held at Bangor University, School of Ocean Sciences by Professor David Bowers and ran from 01 April 2011 to 31 March 2014. Grant NE/H020853/1 was held at the University of Plymouth, School of Marine Science and Engineering by Dr. William Alexander Nimmo Smith and ran from 01 October 2010 to 30 September 2013. Finally, grant NE/H021493/1 was held at the University of Strathclyde Physics Department by Dr. David McKee and ran from 01 April 2011 to 31 March 2014. All data have been received by BODC as raw files from the RV Prince Madog and Seiont IV, processed and quality controlled using in-house BODC procedures.
British Oceanographic Data Centre
| Other details | ||
| Internal code | Internally assigned metadata identifier | 8898 |
| 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. | Measurements of sub-micron marine particulates in the Irish Sea and seas to the west of Scotland (2011-2012) |
| Alternative title | The purpose of alternative title is to record any additional names by which the dataset may be known. | British Oceanographic Data Centre record 1048NE-H022090-1dataset |
| 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. | e11cf69405c75b4798ed7ddb92d64a15 |
| Resource Identifier | This is the code assigned by the data owner. | EDMED6766 |
| 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 | 2011-08-17 |
| End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2012-06-22 |
| 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'. | asNeeded |
| Abstract | The abstract provides a clear and brief statement of the content of the resource. | This collection comprises physical measurements of the water column and surface waters, together with supporting discrete chemical and biological datasets. The data were obtained from the Irish Sea and in the sea off western Scotland over 4 periods: 17 and 23 August 2011 and 06 - 07 March 2012, all collected on Seiont IV cruises and 15 - 22 June 2012 obtained using the RV Prince Madog. These datasets and their collection methods are as follows: 1) LISST particle size data - A LISST 100X type C laser diffraction instrument was lowered in a frame from the ship and the depth-averaged volumes of particles in 32 size classes in a water column from the surface to a depth of 10 m (or the bottom, where shallower) were measured. 2) CTD profiles of conductivity, temperature, sigma-theta and salinity. At each station, a CTD with attached rosette was lowered, with data measurements taken. 3) SPM, mineral SPM, chlorophyll and CDOM water sample data. At each station a surface water sample was collected either in a bucket or in a rosette sampler on the CTD and triplicate sub-samples were filtered and subsequently dried and weighed, baked (at 500°C for 3 hours to remove organic material) and weighed again. 4) CDOM discrete samples taken from CTD and underway. Surface water samples collected at each station were filtered through 0.2 µm filters and the spectral variation of the absorption coefficient of the dissolved material in the filtrate was measured in a 10 cm cell in a Shimadzu 1600 dual-beam spectrophotometer, using distilled water as a reference.. 5) Water column inherent optical property profiles. Measurements of beam attenuation were made using a Sea Tech T1000 transmissometer (20cm pathlength) fixed to the CTD on the RV Prince Madog. At some stations, vertical profiles of downwelling irradiance and upwelling radiance were made with a PRR radiometer. These cruises formed the fieldwork component of the NERC-funded project “Measurement of the abundance and optical significance of sub-micron sized particles in the ocean”. The project aimed to use different magnifications and commercially available in-situ particle sizing instruments to create a package of instruments for measuring the undisturbed particle size distributions from 0.2 µm to 1 mm. This package will first be used in a turbulence tank to 'film' the flocculation process. The insight this gives will be used to construct new theoretical models of the particle size distribution. Because the camera also measures the shape of the particles, differences between observed and calculated optical properties can be compared, for the first time, to particle shape. Finally, the complete dataset will be collated to determine what size particles, under what conditions, are primarily responsible for the signals seen in visible band satellite images of the oceans. The NERC-funded project was held under lead grant reference NE/H022090/1 with child grants NE/H020853/1 and NE/H021493/1. The lead grant was held at Bangor University, School of Ocean Sciences by Professor David Bowers and ran from 01 April 2011 to 31 March 2014. Grant NE/H020853/1 was held at the University of Plymouth, School of Marine Science and Engineering by Dr. William Alexander Nimmo Smith and ran from 01 October 2010 to 30 September 2013. Finally, grant NE/H021493/1 was held at the University of Strathclyde Physics Department by Dr. David McKee and ran from 01 April 2011 to 31 March 2014. All data have been received by BODC as raw files from the RV Prince Madog and Seiont IV, processed and quality controlled using in-house BODC procedures. |
| Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | This dataset was created by scientists for the "Measurement of the abundance and optical significance of sub-micron sized particles in the ocean" project, which ran from 2009 to 2014, following their in-house data processing and quality control procedures. The data were then provided to the British Oceanographic Data Centre (BODC) for ingestion into one of the schemas of the National Oceanographic Database (NODB). During ingestion BODC undertake quality control, documentation and metadata enhancement procedures appropriate to the type of data. For an overview please see http://www.bodc.ac.uk/about/information_technology/data_processing_steps/. BODC supply full information about data collection, data processing and data quality with all data requests to enable users to assess data suitability themselves. Instrument(s) used to collect data: radiometers; spectrophotometers; CTD; transmissometers; in-situ particle sizers. |
| Related keywords | ||
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Oceanographic geographical features |
| 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 | Marine Environmental Data and Information Network | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Natural Environment Research Council Designated Data Centres | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Suspended particulate material grain size parameters | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Concentration of organic matter in water bodies | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Temperature of the water column | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Electrical conductivity of the water column | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Optical backscatter | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Concentration of suspended particulate material in the water column | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Chlorophyll pigment concentrations in water bodies | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Other physical and chemical properties of suspended particulate material | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Salinity of the water column | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | unknown | |
| Geographical coverage | ||
| North | The northern-most limit of the data resource in decimal degrees | 59.27 |
| East | The eastern-most limit of the data resource in decimal degrees | -2.31 |
| South | The southern-most limit of the data resource in decimal degrees | 51.53 |
| West | The western-most limit of the data resource in decimal degrees | -8.3 |
| Regional sea | Inner Seas off the West Coast of Scotland | |
| 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 | British Oceanographic Data Centre | |
| Individual name | Polly Hadžiabdic | |
| Position name | Head of the BODC Requests Team | |
| Delivery point | Joseph Proudman Building, 6 Brownlow Street | |
| Postal code | L3 5DA | |
| City | Liverpool | |
| Administrative area | Merseyside | |
| Country | United Kingdom | |
| URL | https://www.bodc.ac.uk/ | |
| Role | The owner is the person or organisation that owns the resource. | owner |
| Organisation name | British Oceanographic Data Centre | |
| Individual name | Unknown | |
| Position name | Unknown | |
| Delivery point | Joseph Proudman Building, 6 Brownlow Street | |
| Postal code | L3 5DA | |
| City | Liverpool | |
| Administrative area | Merseyside | |
| Country | United Kingdom | |
| URL | https://www.bodc.ac.uk/ | |
| Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
| Organisation name | British Oceanographic Data Centre | |
| Individual name | Unknown | |
| Position name | Unknown | |
| Delivery point | Joseph Proudman Building, 6 Brownlow Street | |
| Postal code | L3 5DA | |
| City | Liverpool | |
| Administrative area | Merseyside | |
| Country | United Kingdom | |
| URL | https://www.bodc.ac.uk/ | |
| 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 | British Oceanographic Data Centre | |
| Position name | Director | |
| Delivery point | Joseph Proudman Building, 6 Brownlow Street | |
| Postal code | L3 5DA | |
| City | Liverpool | |
| Administrative area | Merseyside | |
| Country | United Kingdom | |
| URL | https://www.bodc.ac.uk/ | |
| Role | The distributor is the person or organisation that distributes the resource. | distributor |
| Organisation name | British Oceanographic Data Centre | |
| Position name | Director | |
| Delivery point | Joseph Proudman Building, 6 Brownlow Street | |
| Postal code | L3 5DA | |
| City | Liverpool | |
| Administrative area | Merseyside | |
| Country | United Kingdom | |
| URL | https://www.bodc.ac.uk/ | |
| Dataset constraints | ||
| 20.1 Limitations on Public Access - Access constraints | Any restrictions imposed on accessing the resource such as the need to agree to certain licence conditions. | otherRestrictions |
| 20.2 Limitations on Public Access - Other constraints | http://inspire.ec.europa.eu/metadata-codelist/LimitationsOnPublicAccess/NoLimitations | |
| Data are freely available to all following agreement to the terms and conditions of a Data Licence | ||
| 21.1 Conditions for Access and Use - Use constraints | Any restrictions imposed on accessing the resource such as the need to agree to certain licence conditions. | otherRestrictions |
| 21.2 Conditions for Access and Use - Other constraints | Usage restrictions are specified in the terms of the licence | |
| 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. | 2018-08-24 |
| Date of last revision | The most recent date that the resource was revised. | 2018-08-24 |
| Date of creation | The date that the resource was created. | 2018-01-15 |
| Metadata date | The date when the content of this metadata record was last updated. | 2022-03-02 |
| 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 | 3.1.1 |
© OpenStreetMap contributors