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Metadata: Scottish Coastal Observatory Data
Abstract:
This data set comprises the monitoring data collected as part of the Scottish Coastal Observatory and represents the raw data summarised in the data file http://dx.doi.org/10.7489/1761-1.
Data holder:
Scottish Government (Marine Scotland)
Use constraints:
no limitations to public access
Other details | ||
Internal code | Internally assigned metadata identifier | 6242 |
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. | Scottish Coastal Observatory Data |
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. | Marine_Scotland_FishDAC_1761 |
Resource Identifier | This is the code assigned by the data owner. | Marine_Scotland_FishDAC_1761 |
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 | 1997-01-01 |
End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2018-04-18 |
Spatial resolution | This describes the spatial resolution of the dataset or the spatial limitations of the service. | 55000.00 |
Spatial resolution unit | This describes the unit of spatial resolution which for distance must be metres. | http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/uom/gmxUom.xml#m |
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 data set comprises the monitoring data collected as part of the Scottish Coastal Observatory and represents the raw data summarised in the data file http://dx.doi.org/10.7489/1761-1. |
Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | Nutrient data: TOx N, DIP, DSi and Ammonia are collected using the methodology below. Water samples for nutrients at four depths (1 m, 5 m, 10 m & 45 m at Stonehaven and 1 m, 5 m, 10 m and 35 m at Loch Ewe) were collected using a Niskin Sampling bottle, which was also fitted with a digital reversing thermometer. At all other sites surface water samples only were collected. Samples for nitrate and phosphate were stored in glass bottles at -20oC and allowed to thaw for 24 hours before analysis. Samples for silicate analysis were stored in plastic bottles and either stored in a refrigerator maintained between 0 and 8oC (1997 - 2010) or at -20oC (2011 onwards). Refrigerated samples were allowed to come to room temperature before analysis while frozen samples were thawed in the dark for 48 hours to allow for depolymerisation.Water samples were analysed for DIP, TOxN and DSi by colorimetry using a continuous flow analysis (CFA) system based on the techniques of Armstrong et al., (1967) for oxidised nitrogen (nitrate plus nitrite), Murphy and Riley (1962) for PO4 and Koroleff (1971) for DSi. Samples collected prior to 2002 were analysed using a Skalar system. From 2002-2006 a Bran and Luebbe Analyser (AA3) and from 2006 a Bran and Luebbe QuAAtro (SEAL Analytical, UK) was used. Aliquots of each sample (5 ml) were aspirated using an auto-sampler and transmitted through the complete system by a peristaltic pump. The sample stream was split with a pump continuously adding the reagents required to each sample stream using tubes of a specific internal diameter. Air bubbles are evenly pumped through each stream to reduce inter-sample dispersion and improve sample throughput. Once the chemical reaction to allow detection was complete each stream flowed through a specific detector. Concentrations were determined with the wavelengths set at 520 nm for TOxN and at 880 nm and 820 nm for PO4 and DSi, respectively. Dual-beam operation with same-wavelength compensation gives low drift, even at very high sensitivities. Data was collected as an analogue voltage that was fed through a digitising interface to a computer and analysed using either the Bran & Luebbe data processing package Versions 5.31 – 6.02 or with the Skalar data processing package Version 6. Further details of the methodology can be found in Webster et al., (2007), Rose et al., (2009) and Smith et al., (2014). Determination of Ammonia: Samples were analysed for ammonia using a manual method. Buffer solution was added to the samples to prevent the precipitation of calcium and magnesium hydroxides, followed by the phenol catalyst and an oxidising agent (dichloro-s-2,4,6-trione). Samples were then incubated and exposed to UV light for at least 40 minutes. In the presence of the phenol catalyst and excess chlorine, ammonia reacts with phenol to form indophenol blue, which was determined calorimetrically at 630 nm using a spectrophotometer. Further details of the methodology can be found in Webster et al., (2007) and Rose et al., (2009). Since 2012 all nutrient data and the sample information from the Oceanography Environmental Record sheets is held on LIMS. Prior to 2012 nutrient data was saved by analytical Batch number on a shared folder on the internal computer system and in-house developed data base (Chemdat). Nutrient data was sent to the MSS Oceanography Group who would add the nutrient data on to their own databases along with the sample information. Quality Control: A system suitability standard (highest calibration standard) was analysed each day using the CFA. Calibration standards covering the range 0.2-19.3 µM for TOxN, 0.2-13.3 µM for DSi, 0.05 - 5 µM for PO4 were analysed at the start and the highest concentration analysed at the end of each batch, to account for drift. In both cases correlation coefficients of at least 0.999 were achieved for all nutrients. The limits of detection were dependent on the instrument used and were based on 4.65 times the standard deviation of the mean value from repeat analysis of ten low standards and can be found in Webster et al., (2007), Rose et al., (2009) and Smith et al., (2014). Calibration standards, covering the range 0.2 to 10.00 µM for ammonia, were prepared in low nutrient sea water (LNSW) and analysed with each batch. The absorbance readings were used to compute the calibration curve. Correlation figures of at least 0.995 were achieved. The limit of detection (LoD), based on 4.65 times the standard deviation of the mean value from repeat analysis of ten low standards was 0.19 µM. Prior to 2010, QUASIMEME sea water samples were used as reference materials, whilst from 2010 onwards reference standards were prepared from standards procured from OSIL (Havant, Hampshire, UK). The data obtained from the reference samples were plotted on Shewhart charts with warning and action limits drawn at ± 2 x and ± 3 x the standard deviation of the mean. Further quality control was assured thr |
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 | Nutrients | |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | Phytoplankton | |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | Water column temperature and salinity | |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | Zooplankton | |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | Ammonium concentration parameters in the water column | |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | Dissolved inorganic nitrogen concentration in the water column | |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | Phosphate concentration parameters in the water column | |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | Phytoplankton generic abundance in water bodies | |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | Phytoplankton taxonomic abundance in water bodies | |
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 | Secchi disk depth | |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | Silicate concentration parameters in the water column | |
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 | Temperature variation in the water column | |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | Zooplankton taxonomy-related abundance per unit volume of the water column | |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | Visibility in the water body by Secchi disk | |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | Biological diversity maintained | |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | Eutrophication is minimised | |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | Hydrographical conditions are not altered | |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | Marine food webs are at normal abundace and diversity | |
Geographical coverage | ||
North | The northern-most limit of the data resource in decimal degrees | 60.96097 |
East | The eastern-most limit of the data resource in decimal degrees | -0.5226393 |
South | The southern-most limit of the data resource in decimal degrees | 54.5331 |
West | The western-most limit of the data resource in decimal degrees | -13.87353 |
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 | Scottish Government (Marine Scotland) | |
Phone | +44 (0)300 244 4000 | |
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 | Scottish Government (Marine Scotland) | |
Phone | +44 (0)300 244 4000 | |
Delivery point | Mailpoint 11, Area 1B South, Victoria Quay | |
Postal code | EH6 6QQ | |
City | Edinburgh | |
Country | United Kingdom | |
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 | Scottish Government (Marine Scotland) | |
Phone | +44 (0)300 244 4000 | |
Delivery point | Mailpoint 11, Area 1B South, Victoria Quay | |
Postal code | EH6 6QQ | |
City | Edinburgh | |
Country | United Kingdom | |
Role | The distributor is the person or organisation that distributes the resource. | distributor |
Organisation name | Scottish Government (Marine Scotland) | |
Phone | +44 (0)300 244 4000 | |
Delivery point | Mailpoint 11, Area 1B South, Victoria Quay | |
Postal code | EH6 6QQ | |
City | Edinburgh | |
Country | United Kingdom | |
Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
Organisation name | Scottish Government (Marine Scotland) | |
Phone | +44 (0)300 244 4000 | |
Delivery point | Mailpoint 11, Area 1B South, Victoria Quay | |
Postal code | EH6 6QQ | |
City | Edinburgh | |
Country | United Kingdom | |
Resource locators | ||
Locator URL | Web address (URL) that links to the resource | https://dx.doi.org/10.7489/1761-1 |
Locator function | Code that describes the function of the resource. ISO function code chosen from ISO 19115-1 Codelist | DOI:https://dx.doi.org/10.7489/1761-1 |
Dataset constraints | ||
20 Limitations on Public Access - Access constraints | otherRestrictions | |
20 Limitations on Public Access - Other constraints | This states any limitations on access to the data and uses free text. | no limitations to public access |
21 Conditions for Access and Use - Use limitation | 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. | Open Government License (http://www.nationalarchives.gov.uk/doc/open-government-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. | 2016-12-15 |
Harvest date | The date which this record has been (re)harvested from the provider. | 2024-04-21 |
Metadata date | The date when the content of this metadata record was last updated. | 2017-02-06 |
Metadata standard name | The name of the metadata standard used to create this metadata | MEDIN Discovery Metadata |
Metadata standard version | The version of the MEDIN Discovery Metadata Standard used to create the metadata record | Version 2.3.7 |