IMPLICIT Improving inversion model capability in Ireland (2016-CCRP-MS.33)

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Resource or Project Abstract

IMPLiCIT has implemented and tested the FLEXINVERT Bayesian inversion framework using different sets of observational data and prior information combined with atmospheric transport modelling calculations made with the widely used FLEXPART model. FLEXINVERT has been adapted and prepared to be used for the Irish domain with minor adaptations of the code and with the preparation of the programming environment to arrange and perform the necessary runs and the corresponding outcome evaluation. The inversion results show a significant increase of the total emissions for Ireland as compared to the MapEIre 2015 high resolution emission inventory, almost doubling the total emissions but without clearly improving the statistical scores when compared with independent site observations. However, the estimates fit within the range of uncertainties of other inversion systems. It is concluded that additional work is needed to improve the results and evaluate the different contributors to the uncertainty and identify procedures to either correct them or include them properly in the inversions. To this aim, a road-map is proposed whereby two lines of action are defined: on the one hand, better understand and address the uncertainties related to the atmospheric transport modelling (calculation of the source-receptor sensitivities) through ensemble modelling and investigation of the definition of the boundary layer height in the model; an on the other, the proposition of executing additional measurement campaigns that would allow, in a sectorised way, a better comparison with bottom-up emission inventories

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Contact Information for This Resource

Mr. Damien Martin
Center For Climate and Air Pollution Studies

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Data, Files, Information Objects Related To This Project Resource

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Attachment Name and Download Link
Att 1    flexinvert_resultsIE.tar.gz   (5.23 Mb)
Att 2    README.txt   (0.0 Mb)

Suggested Citation Information

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Author(s)Martin, D.
Title Of WebsiteSecure Archive For Environmental Research Data
Publication InformationIMPLICIT Improving inversion model capability in Ireland (2016-CCRP-MS.33)
Name of OrganisationEnvironmental Protection Agency Ireland
Electronic Address or URL http://erc.epa.ie/safer/resource?id=9793c767-4f1b-11e9-8529-005056ae0019
Unique Identifier9793c767-4f1b-11e9-8529-005056ae0019
Date of AccessLast Updated on SAFER: 2019-10-14

An example of this citation in proper usage:

Martin, D.   "IMPLICIT Improving inversion model capability in Ireland (2016-CCRP-MS.33)". Associated datasets and digitial information objects connected to this resource are available at: Secure Archive For Environmental Research Data (SAFER) managed by Environmental Protection Agency Ireland http://erc.epa.ie/safer/resource?id=9793c767-4f1b-11e9-8529-005056ae0019 (Last Accessed: 2019-10-14)

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Access Information For This Resource

SAFER-Data Display URL http://erc.epa.ie/safer/iso19115/display?isoID=3174
Resource Keywordsspatially disaggregated methane emissions
EPA/ERTDI/STRIVE Project Code2018-CCRP-MS.55
EPA/ERTDI/STRIVE Project ThemeClimate Change
Resource Availability: Any User Can Download Files From This Resource
Public-Open
Limitations on the use of this ResourceThere are no usage limitations
Number of Attached Files (Publicly and Openly Available for Download): 2
Project Start Date Saturday 24th September 2016 (24-09-2016)
Earliest Recorded Date within any attached datasets or digital objects Saturday 1st January 2011 (01-01-2011)
Most Recent Recorded Date within any attached datasets or digital objects Saturday 31st December 2011 (31-12-2011)
Published on SAFERMonday 25th March 2019 (25-03-2019)
Date of Last EditTuesday 26th March 2019 at 16:18:13 (26-03-2019)
Datasets or Files Updated On Tuesday 26th March 2019 at 16:18:13 (26-03-2019)

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Geographical and Spatial Information Related To This Resource

Description of Geographical Characteristics of This Project or Dataset
This primarily covers the Irish domain

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Supplementary Information About This Resource

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Lineage information about this project or dataset
This project was established in response to the need to understand our national emissions of greenhouse gases by using a top down approach rather than a bottom up approach. This followed on from a previous project and there will also be an EPA funded follow on project which aims to develop more quantitative assessment of uncertainty and extension of this technique to other gases. (previous project : 2011-CCRP-MS-1.5:Verification of sources and sinks of Irish greenhouse Gases. Follow on project:2018-CCRP-MS.55:Improvements in inverse modelling of Ireland?s greenhouse gas emissions)
Supplementary Information
These are annual estimates of methane using a number of different paramaterisations and choice of input data and atmospheric monitoring station data.
The files are net cdf files.
Links To Other Related Resources
  https://www.macehead.ie/index.php/air-pollution/atmospheric-composition (Opens in a new window)

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