Document of bibliographic reference 245377

BibliographicReference record

Type

Bibliographic resource

Type of document

Journal article

BibLvlCode

AS

Title

Global bottom-up fossil fuel fugitive methane and ethane emissions inventory for atmospheric modeling

Abstract

Natural gas (NG)-related fugitive methane (CH₄) emissions estimates from life cycle assessments (LCA) and local field measurements are highly uncertain. Globally distributed long-term atmospheric measurements and top-down modeling can help understand whether LCA and field studies are representative of the global industry average. Attributing sources, such as the NG industry, to global total top-down emissions estimates requires detailed and transparent global a priori bottom-up emissions inventories. Establishing an a priori bottom-up inventory as a tool for top-down modeling is the focus of this work, which extends existing fossil fuel (FF) inventories over the past three decades: (i) It includes ethane (C₂H₆) emissions, which is a convenient FF tracer gas given available global C₂H₆ observations. (ii) Fuel specific CH₄ and C₂H₆ emissions uncertainties are quantified. (iii) NG CH₄ and C₂H₆ emissions are estimated for different fugitive emissions rate (FER; % of dry production) scenarios as a basis for quantifying global average FER top-down. While our global oil and coal CH₄ estimates coincide well with EDGAR v4.2 for most years, country-level emissions vary substantially, and coal emissions increase at a lower rate over the past decade. Global emissions grid maps are presented for use in top-down modeling.

WebOfScience code

https://www.webofscience.com/wos/woscc/full-record/WOS:000339981900009

Bibliographic citation

Schwietzke, S.; Griffin, W.M.; Matthews, H.S.; Bruhwiler, L.M.P. (2014). Global bottom-up fossil fuel fugitive methane and ethane emissions inventory for atmospheric modeling. ACS Sustainable Chemistry & Engineering 2(8): 1992–2001. https://dx.doi.org/10.1021/sc500163h

Topic

Marine

Is peer reviewed

true

Access rights

open access

Is accessible for free

true