UK maps representing baseline uncertainty in CO2 and CH4 fluxes

This dataset provides UK maps of baseline prior uncertainty (UQ) in fluxes of Greenhouse Gases (GHGs) carbon dioxide, CO2 (2014-15) and methane, CH4 (2015). Spatial maps of these GHG emissions are produced annually in the National Atmospheric Emissions Inventory (NAEI) but it is important to quantify uncertainty in these maps. These uncertainty estimates come from sectoral uncertainty data provided by the NAEI. Here, we propagate the uncertainty in the maps for each of the sectors contributing to the emissions using a Monte Carlo method, in order to quantify the uncertainty in the total emissions spatially. The Monte Carlo method employed here uses a novel approach (Nearest Neighbour Gaussian Process) to make calculations computationally affordable. These estimate the influence on the overall uncertainty of unknown errors in the model structure. Further details of the methodology used here can be found in the supporting documentation included with this data. In the near term, this methodology will be used and developed further in the NERC-funded project, DARE-UK (NE/S003614/1), to update UQ in maps of CO2 and CH4 for the UK. For that work and in general, it is useful to have a baseline prior uncertainty quantification against which future UK maps of uncertainty in CO2 and CH4 fluxes can be compared. Full details about this dataset can be found at https://doi.org/10.5285/739c65a5-12c0-439b-bbcd-1252a4086e87

Identification info

Metadata Language: English (en)

Character set: utf8

Dataset Reference Date (): 2020-12-18

Dataset Reference Date (): 2020-12-09

Identifier: https://catalogue.ceh.ac.uk/id/739c65a5-12c0-439b-bbcd-1252a4086e87

Identifier: doi: / 10.5285/739c65a5-12c0-439b-bbcd-1252a4086e87

Other citation details: Cameron, D.R. , Levy, P.E. (2020). UK maps representing baseline uncertainty in CO2 and CH4 fluxes. NERC Environmental Information Data Centre 10.5285/739c65a5-12c0-439b-bbcd-1252a4086e87

UK Centre for Ecology & Hydrology - Cameron, D.R.

UK Centre for Ecology & Hydrology - Levy, P.E.

UK Centre for Ecology & Hydrology - Cameron, D.R.

UK Centre for Ecology & Hydrology

NERC EDS Environmental Information Data Centre

NERC Environmental Information Data Centre

GEMET - INSPIRE themes, version 1.0 ()

Atmospheric Conditions

Keywords

Climate and climate change

Limitations on Public Access: otherRestrictions

Other constraints: no limitations

Use constraints: otherRestrictions

Other constraints: This resource is available under the terms of the Open Government Licence

Use constraints: otherRestrictions

Other constraints: If you reuse this data, you should cite: Cameron, D.R. , Levy, P.E. (2020). UK maps representing baseline uncertainty in CO2 and CH4 fluxes. NERC Environmental Information Data Centre https://doi.org/10.5285/739c65a5-12c0-439b-bbcd-1252a4086e87

Spatial representation type: grid

Distance: 20000 urn:ogc:def:uom:EPSG::9001

Topic category

Environment
Climatology, meteorology, atmosphere
Geoscientific information

Begin date: 2014-03-01

End date: 2015-12-31

Code: OSGB 1936 / British National Grid

Distribution Information

Data format

TIFF ()

Resource Locator: Download the data
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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: The steps involved in creating this data were as follows: 1) Maps of emissions of CO2 and CH4 for each sector for years 2014/15 (CO2) 2015 (CH4) and contributing to the total emissions were obtained from the National Atmospheric Emissions Inventory (NAEI). 2) Prior uncertainty in the maps for each sector was estimated based on NAEI guidance (https://naei.beis.gov.uk/resources/Sector_Summary_Factsheet_2018-v1.html#5_uncertainties CO2) and (https://uk-air.defra.gov.uk/assets/documents/reports/empire/naei/ipcc/uncertainty/tables.html) 3) Uncertainty in the maps for each of the sectors were propagated using a Monte Carlo method to quantify the uncertainty in the total emissions spatially. Full details of the Monte Carlo methodology used can be found in the supporting documentation. Uncertainty maps: There are three maps (5th, 50th and 95th quantiles) for each of CO2 and CH4 representing the baseline prior uncertainty spatially in the emissions. Dates: The annual maps provided here are for: - March 2014 to Feb 2015 (CO2) - Jan 2015 to Dec 2015 (CH4) Units: The units of CO2 fluxes in the data submission are micro mol per metre squared per second. The units of CH4 fluxes are nano mol per metre squared per second.

Metadata

File identifier: 739c65a5-12c0-439b-bbcd-1252a4086e87 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: 2022-05-18T12:30:03

Metadata standard name: UK GEMINI

Metadata standard version: 2.3

Environmental Information Data Centre

Lancaster Environment Centre, Library Avenue, Bailrigg , Lancaster , LA1 4AP , UK

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