Gridded global surface measurements of nitric ozone, nitrogen dioxide, carbon monoxide and isoprene metrics data (1980-2015) - version 1.0

This dataset represents a collation of surface measurements of nitric oxide (NO), nitrogen dioxide (NO2), carbon monoxide (CO) and isoprene (C5H8) from publicly available data sets (of hourly, daily and monthly resolutions), for the aim of improved evaluation of surface ozone in global atmospheric chemistry models.

Measurements begin in 1980 running through to 2015. The data comes in a range of formats, with a plethora of associated data quality issues, requiring substantial cleaning before being able to be utilised for model assessment. 1,033,463,750 measurements from 16,996 sites are processed through numerous data quality checks, resulting in 76,413,458 observations from 1607 sites of appropriate quality (with the majority of excluded observations due to urban influence). Observations are heavily weighted towards North America and Europe, with generally sparse coverage over the rest of the globe (with the exception of CO). See documentation for more details.

Data is provided as multiple globally gridded output files, each consisting of a series of metrics designed to reflect the distributions of the observed ozone precursor species, allowing fair and easy comparison with global models. Metrics include the moments of the distribution (i.e. mean, temporal standard deviation, skewness and kurtosis) and percentiles. A total of 80 different netCDF-4 files are produced, with metrics calculated in multiple temporal (monthly and annual) and spatial configurations (8 different resolutions), for each different species.

The format of the output netCDF-4 files is designed to be consistent with the related dataset which compiled surface ozone observations (v2.7).

Date (Publication): 2017-06-12T09:37:10

Date (Creation): 2017-06-12T09:37:10

Citation identifier: https://catalogue.ceda.ac.uk/uuid/fde8e875d45346bcb533641f44531268

Citation identifier: Centre for Environmental Data Analysis (CEDA) / fde8e875d45346bcb533641f44531268

Point of contact

Organisation name	Individual name	Electronic mail address	Role
Unavailable	Evans, Mathew John	Unavailable	Author
Unavailable	Bowdalo, Dene Richard	Unavailable	Author
Centre for Environmental Data Analysis (CEDA)		support@ceda.ac.uk	Custodian
Centre for Environmental Data Analysis (CEDA)		support@ceda.ac.uk	Distributor
Unavailable	Evans, Mathew John	Unavailable	Principal investigator
Unavailable	Bowdalo, Dene Richard	Unavailable	pointofContact
Centre for Environmental Data Analysis (CEDA)		support@ceda.ac.uk	Publisher

Maintenance and update frequency: Not planned

Update scope: Dataset

Keywords

Nitric Oxide
Nitrogen Dioxide
Carbon Monoxide
Isoprene
NO
NO2
CO
C5H8
Surface
Chemistry

GEMET - INSPIRE themes, version 1.0

atmospheric conditions

Access constraints: Other restrictions

Other constraints: Access to these data is available to any registered CEDA user. Please Login or Register for a CEDA account to gain access.

Use constraints: Other restrictions

Other constraints: Under the following licence http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/, appropriate use of these data may fall under any use. This message is intended as guidance, always read the full licence. When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.

Spatial representation type: Grid

Language: English

Topic category

Climatology, meteorology, atmosphere

Begin date: 1980-01-01T00:00:00

End date: 2015-12-31T23:59:59

Unique resource identifier: WGS 84

Distribution format

Name	Version
NetCDF4

Distributor contact

Organisation name	Individual name	Electronic mail address	Role
Centre for Environmental Data Analysis (CEDA)		support@ceda.ac.uk	Distributor

OnLine resource

Protocol	Linkage	Name
	https://catalogue.ceda.ac.uk/uuid/fde8e875d45346bcb533641f44531268	CEDA Data Catalogue Page

OnLine resource

Protocol	Linkage	Name
	http://data.ceda.ac.uk/badc/proc-earth-model/data/other-metrics/v1.0	DOWNLOAD

OnLine resource

Protocol	Linkage	Name
	http://www.earth-syst-sci-data-discuss.net/8/603/2015/essdd-8-603-2015.html	ESSDD paper: Gridded global surface ozone metrics for atmospheric chemistry model evaluation

OnLine resource

Protocol	Linkage	Name
	http://www.earth-system-science-data.net/	Eric D. Sofen, Mathew J. Evans, and Dene Bowdalo. Gridded Global Surface Ozone Metrics for Atmospheric Chemistry Model Evaluation. Submitted to ESSD Journal

OnLine resource

Protocol	Linkage	Name
	http://data.ceda.ac.uk/badc/proc-earth-model/docs/Paper_3966_handout_465_0.pdf	AGU Poster: Surface Ozone Data Across the Globe: A Dataset for Earth System Model Evaluation

Hierarchy level: Dataset

Conformance result

Title: Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services

Date (Publication): 2010-12-08

Statement: Data were processed by the authors and delivered to CEDA for archiving. See associated documentation for more details.

Metadata

File identifier: fde8e875d45346bcb533641f44531268 XML

Metadata language: English

Character set: UTF8

Parent identifier: Process Based Earth System Model Evaluation: Gridded Global Surface Ozone Metrics and Precursor species data collection for Atmospheric Chemistry Model Evaluation
5af3f51efc1d46c88d35be217b20fad3

Hierarchy level: Dataset

Date stamp: 2026-01-15T03:10:29

Metadata standard name: UK GEMINI

Metadata standard version: 2.3

Metadata author

Organisation name	Individual name	Electronic mail address	Role
Centre for Environmental Data Analysis (CEDA)		support@ceda.ac.uk	Point of contact

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