Dataset
Isoprene and DMS concentration measurements in the Faroe Islands in summer-autumn 2020
Abstract
This dataset contains the time series of isoprene and dimethyl sulfate (DMS) concentrations measured in the Faroe Islands from June to October 2020 as part of the the NERC-funded Shipping Emissions in the Arctic and North Atlantic atmosphere (SEANA) project.
The data was collected using two iDirac gas chromatographs (one for isoprene, one for DMS), deployed at the Havnardalur remote air quality station (62.017036°N, 6.857356 °W, 160 m a.s.l.), run by the Faroese Environment Agency on the island of Streymoy, the largest of the Faroe Islands.
Isoprene and DMS represent two of the largest natural emissions of volatile organic compounds into the atmosphere, with direct effects on regional atmospheric composition and climate.
This data is openly accessible for research purposes. Please do contact the authors if you plan to use this data for publications.
Details
| Previous Info: |
No news update for this record
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| Previously used record identifiers: |
No related previous identifiers.
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| Access rules: |
Public data: access to these data is available to both registered and non-registered users.
Use of these data is covered by the following licence(s): http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record. |
| Data lineage: |
Raw chromatogram from the iDirac were converted into concentrations as described in Bolas et al., AMT, 2020. Data underwent QA/QC procedures as described in Bolas et al. |
| Data Quality: |
Gas standards for isoprene and DMS were prepared gravimetrically by diluting higher concentration parent mixtures (respectively 104 ± 5.2 and 106 ± 5.3 nmol mol−1 in nitrogen, BOC) to 4.6 and 12 nmol mol−1 respectively, with high-purity nitrogen (BIP+, Air Products), inside Silconert2000-treated stainless steel cylinders (RE24133-PI 500 mL sample cylinder, Thames Restek).
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| File Format: |
data are BADC-CSV formatted
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Process overview
Independent Instruments
| iDirac custom-built gas chromatograph |
| Output Description | None |
- long_name: date and time (UTC)
- units:
- var_id: 1
- units:
- var_id: 2
- long_name: dimethyl sulfide (DMS) volume mixing ratio
- units:
- var_id: 2
- long_name: isoprene (C5H8) volume mixing ratio
Co-ordinate Variables
Temporal Range
2020-06-05T00:00:00
2020-10-24T00:00:00
Geographic Extent
62.0170° |
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-6.8574° |
-6.8574° |
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62.0170° |