NERC Data Catalogue Service
Monthly atmospheric ammonia gas concentration data from Northern Ireland ALPHA® Ammonia Monitoring Network, 2019-2020
This dataset is from the Northern Ireland (NI) ALPHA® Ammonia Monitoring network, and consists of monthly concentrations of atmospheric ammonia (NH3) gas measured with the UKCEH ALPHA® method at 25 sites across NI for the years 2019 to 2020.
NH3 data were also collected with a monthly measurement frequency with the UKCEH DELTA® method at a further 4 sites, as part of the NI DELTA® Gas and Aerosol Monitoring Network. At one site, ALPHA® and DELTA® methods were co-located to inter-compare NH3 concentrations. Monthly NH3 data (2019 – 2020) from the NI DELTA® network are reported separately in a companion submission.
The network is operated jointly by Agri-Food and Biosciences Institute (AFBI) and the UK Centre for Ecology & Hydrology (UKCEH), and funded by the Department of Agriculture, Environment and Rural Affairs (DAERA), Northern Ireland. Full details about this dataset can be found at https://doi.org/10.5285/7d380209-9df4-4686-b7ad-de39cca19cce
Default
Identification info
- Metadata Language
- English (en)
- Character set
- utf8
- Dataset Reference Date ()
- 2022-03-28
- Identifier
- doi: / 10.5285/7d380209-9df4-4686-b7ad-de39cca19cce
- Other citation details
- Tang, Y.S., Tomlinson, S.J., Carnell, E.J., Williams, M., Simmons, I., Twigg, M., Stephens, A.C.M., Iwanicka, A., Leaver, D., Braban C.F., Mcllroy, J., Pereira, M.G., Keenan, P.O., Tanna, B., Thacker, S., Salisbury, E., Hunt, A., Guyatt, H., Smith, H., Graham, C., Dragosits, U. (2022). Monthly atmospheric ammonia gas concentration data from Northern Ireland ALPHA® Ammonia Monitoring Network, 2019-2020. NERC EDS Environmental Information Data Centre 10.5285/7d380209-9df4-4686-b7ad-de39cca19cce
- GEMET - INSPIRE themes, version 1.0 ()
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- Environmental Monitoring Facilities
- Keywords
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- ammonia
- NH3
- atmospheric
- network
- Northern Ireland
- ALPHA
- Limitations on Public Access
- otherRestrictions
- Other constraints
- no limitations
- Use constraints
- otherRestrictions
- Use constraints
- otherRestrictions
- Other constraints
- If you reuse this data, you should cite: Tang, Y.S., Tomlinson, S.J., Carnell, E.J., Williams, M., Simmons, I., Twigg, M., Stephens, A.C.M., Iwanicka, A., Leaver, D., Braban C.F., Mcllroy, J., Pereira, M.G., Keenan, P.O., Tanna, B., Thacker, S., Salisbury, E., Hunt, A., Guyatt, H., Smith, H., Graham, C., Dragosits, U. (2022). Monthly atmospheric ammonia gas concentration data from Northern Ireland ALPHA® Ammonia Monitoring Network, 2019-2020. NERC EDS Environmental Information Data Centre https://doi.org/10.5285/7d380209-9df4-4686-b7ad-de39cca19cce
- Spatial representation type
- textTable
- Distance
- 1100 urn:ogc:def:uom:EPSG::9001
- Topic category
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- Climatology, meteorology, atmosphere
))
- Begin date
- 2019-01-01
- End date
- 2020-01-01
- Code
- WGS 84
Distribution Information
- Data format
-
-
Comma-separated values (CSV)
()
-
Comma-separated values (CSV)
()
- Resource Locator
-
Download the data
Download a copy of this data
- Resource Locator
-
Supporting information
Supporting information available to assist in re-use of this dataset
- Resource Locator
-
Download the data
Download a copy of this data
- Resource Locator
-
Supporting information
Supporting information available to assist in re-use of this dataset
- Quality Scope
- dataset
- Other
- dataset
Report
- Dataset Reference Date ()
- 2010-12-08
- Statement
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ALPHA® samplers were prepared and analysed by the UKAS accredited UKCEH Lancaster Laboratory, following protocols and procedures in manuals and Standard Operating Procedures (SOPs) developed and adopted in the UK National Ammonia Monitoring Network (NAMN), operated also by UKCEH.
Measurement frequency was monthly, with monthly site visits (± 5 days of the 1st of each calendar month) by a network of trained local site operators to exchange samples.
Sample exposure information (manual transcription from site recording sheets) and raw chemistry data files from analysed air samples (csv files) are stored, combined and processed in an oracle-based database (AAGA) to calculate and output calculated NH3 concentrations via a ShinyApp.
Output files are in a standardised reporting template, with data quality flags (based on flags defined in ebas; https://projects.nilu.no/ccc/flags/ ). Each output file generated are time-stamped, with versioning control.
An annual field calibrated ALPHA® uptake rate from the UK National Ammonia Monitoring Network project (https://uk-air.defra.gov.uk/networks/network-info?view=nh3) was applied to the ALPHA® data for the corresponding calendar year.
Ratified data were generated following a multi-stage, iterative review process, with both automatic and manual data checks, in accordance with procedures in the AAGA data processing system and data review SOPs.
Metadata
- File identifier
- 7d380209-9df4-4686-b7ad-de39cca19cce XML
- Metadata Language
- English (en)
- Character set
- ISO/IEC 8859-1 (also known as Latin 1)
- Resource type
- dataset
- Hierarchy level name
- dataset
- Metadata Date
- 2022-06-21T12:41:05
- Metadata standard name
- UK GEMINI
- Metadata standard version
- 2.3
