Dataset
NCAS Long Term Observations: NOx and NOxy concentrations from the maqs-42iy-1-NOy deployed at Manchester Air Quality Supersite (MAQS), v3.4.1
Update Frequency: Daily
Latest Data Update: 2026-09-09
Status: Ongoing
Online Status: ONLINE
Publication State: Preview
Publication Date:
THIS RECORD HAS NOT BEEN PUBLISHED YET - PREVIEW ONLY!
Abstract
NOx and NOxy concentrations measurements from the maqs-42iy-1-NOy deployed at Manchester Air Quality Supersite (MAQS). These observations were taken as part of the National Centre for Atmospheric Science (NCAS) long term observations.
Data products from this deployment include: nox-noxy-concentration
For further details of this deployment and the associated dataset please see the internal file metadata.
These data conform to the NCAS data standards and are available under the UK Government Open Licence agreement. Acknowledgement of NCAS as the data provider is required whenever and wherever these data are used.
Citable as: [ PROVISIONAL ] Allan, P.J. (9999): NCAS Long Term Observations: NOx and NOxy concentrations from the maqs-42iy-1-NOy deployed at Manchester Air Quality Supersite (MAQS), v3.4.1. NERC EDS Centre for Environmental Data Analysis, date of citation. https://catalogue.ceda.ac.uk/uuid/afbe3e15db494a72bde24f71e80f5f8c
Abbreviation: Not defined
Keywords: NCAS, observation measurements
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: |
Data were processed and prepared by the project team before delivery to the Centre for Environmental Data Analysis (CEDA). |
| Data Quality: |
These data have been produced in accordance to standard NCAS observational practices. This includes instrument calibration and compliance checking of data against the NCAS Data Standards.
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| File Format: |
Data are netCDF formatted.
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Related Documents
No documents related to this record were found.
Process overview
This dataset was generated by instruments deployed on platforms as listed below.
Instrument/Platform pairings
| MAQS: Thermo Model 42i-Y NOY Analyzer | Deployed on: Manchester Air Quality Supersite (MAQS) |
| Output Description | None |
- units: 1
- long_name: Data Quality flag
- var_id: qc_flag_no
- units: 1
- long_name: Day
- var_id: day
- units: 1
- long_name: Day of Year
- var_id: day_of_year
- units: 1
- long_name: Hour
- var_id: hour
- units: 1
- long_name: Minute
- var_id: minute
- units: 1e-9
- var_id: NO
- standard_name: mole_fraction_of_NO_in_air
- long_name: Mole Fraction of NO in air
- units: 1e-9
- var_id: NOy
- standard_name: mole_fraction_of_NOY_in_air
- long_name: Mole Fraction of NOY in air
- units: 1
- long_name: Month
- var_id: month
- units: 1
- long_name: Second
- var_id: second
- units: 1
- long_name: Year
- var_id: year
Co-ordinate Variables
- units: degrees_north
- standard_name: latitude
- var_id: latitude
- long_name: Latitude
- units: degrees_east
- standard_name: longitude
- var_id: longitude
- long_name: Longitude
- standard_name: time
- var_id: time
- units: seconds
- long_name: Time (seconds since 1970-01-01 00:00:00)
Coverage
Temporal Range
Start time:
2023-10-01T00:00:00
End time:
2025-10-31T00:00:00
Geographic Extent
53.4442° |
||
-2.2145° |
-2.2145° |
|
53.4442° |
Related parties