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Sökning: onr:"swepub:oai:lup.lub.lu.se:a69604d8-2a94-4719-9f1d-6a8007457e85" > The consolidated Eu...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00011101naa a2200889 4500
001oai:lup.lub.lu.se:a69604d8-2a94-4719-9f1d-6a8007457e85
003SwePub
008240117s2023 | |||||||||||000 ||eng|
0247 a https://lup.lub.lu.se/record/a69604d8-2a94-4719-9f1d-6a8007457e852 URI
0247 a https://doi.org/10.5194/essd-15-4295-20232 DOI
040 a (SwePub)lu
041 a engb eng
042 9 SwePub
072 7a art2 swepub-publicationtype
072 7a ref2 swepub-contenttype
1001 a McGrath, Matthew J.u Laboratoire des Sciences du Climat et de l'Environnement4 aut
2451 0a The consolidated European synthesis of CO2 emissions and removals for the European Union and United Kingdom : 1990-2020
264 1c 2023
300 a 76 s.
520 a Quantification of land surface-atmosphere fluxes of carbon dioxide (CO2) and their trends and uncertainties is essential for monitoring progress of the EU27+UK bloc as it strives to meet ambitious targets determined by both international agreements and internal regulation. This study provides a consolidated synthesis of fossil sources (CO2 fossil) and natural (including formally managed ecosystems) sources and sinks over land (CO2 land) using bottom-up (BU) and top-down (TD) approaches for the European Union and United Kingdom (EU27+UK), updating earlier syntheses (Petrescu et al., 2020, 2021). Given the wide scope of the work and the variety of approaches involved, this study aims to answer essential questions identified in the previous syntheses and understand the differences between datasets, particularly for poorly characterized fluxes from managed and unmanaged ecosystems. The work integrates updated emission inventory data, process-based model results, data-driven categorical model results, and inverse modeling estimates, extending the previous period 1990-2018 to the year 2020 to the extent possible. BU and TD products are compared with the European national greenhouse gas inventory (NGHGI) reported by parties including the year 2019 under the United Nations Framework Convention on Climate Change (UNFCCC). The uncertainties of the EU27+UK NGHGI were evaluated using the standard deviation reported by the EU member states following the guidelines of the Intergovernmental Panel on Climate Change (IPCC) and harmonized by gap-filling procedures. Variation in estimates produced with other methods, such as atmospheric inversion models (TD) or spatially disaggregated inventory datasets (BU), originate from within-model uncertainty related to parameterization as well as structural differences between models. By comparing the NGHGI with other approaches, key sources of differences between estimates arise primarily in activities. System boundaries and emission categories create differences in CO2 fossil datasets, while different land use definitions for reporting emissions from land use, land use change, and forestry (LULUCF) activities result in differences for CO2 land. The latter has important consequences for atmospheric inversions, leading to inversions reporting stronger sinks in vegetation and soils than are reported by the NGHGI. For CO2 fossil emissions, after harmonizing estimates based on common activities and selecting the most recent year available for all datasets, the UNFCCC NGHGI for the EU27+UK accounts for 926g±g13gTggCgyr-1, while eight other BU sources report a mean value of 948 [937,961]gTggCgyr-1 (25th, 75th percentiles). The sole top-down inversion of fossil emissions currently available accounts for 875gTggC in this same year, a value outside the uncertainty of both the NGHGI and bottom-up ensemble estimates and for which uncertainty estimates are not currently available. For the net CO2 land fluxes, during the most recent 5-year period including the NGHGI estimates, the NGHGI accounted for -91g±g32gTggCgyr-1, while six other BU approaches reported a mean sink of -62 [-117,-49]gTggCgyr-1, and a 15-member ensemble of dynamic global vegetation models (DGVMs) reported -69 [-152,-5]gTggCgyr-1. The 5-year mean of three TD regional ensembles combined with one non-ensemble inversion of -73gTggCgyr-1 has a slightly smaller spread (0th-100th percentiles of [-135,+45]gTggCgyr-1), and it was calculated after removing net land-atmosphere CO2 fluxes caused by lateral transport of carbon (crop trade, wood trade, river transport, and net uptake from inland water bodies), resulting in increased agreement with the NGHGI and bottom-up approaches. Results at the category level (Forest Land, Cropland, Grassland) generally show good agreement between the NGHGI and category-specific models, but results for DGVMs are mixed. Overall, for both CO2 fossil and net CO2 land fluxes, we find that current independent approaches are consistent with the NGHGI at the scale of the EU27+UK. We conclude that CO2 emissions from fossil sources have decreased over the past 30 years in the EU27+UK, while land fluxes are relatively stable: positive or negative trends larger (smaller) than 0.07 (-0.61)gTggCgyr-2 can be ruled out for the NGHGI. In addition, a gap on the order of 1000gTggCgyr-1 between CO2 fossil emissions and net CO2 uptake by the land exists regardless of the type of approach (NGHGI, TD, BU), falling well outside all available estimates of uncertainties. However, uncertainties in top-down approaches to estimate CO2 fossil emissions remain uncharacterized and are likely substantial, in addition to known uncertainties in top-down estimates of the land fluxes. The data used to plot the figures are available at 10.5281/zenodo.8148461 (McGrath et al., 2023).
650 7a NATURVETENSKAPx Geovetenskap och miljövetenskapx Naturgeografi0 (SwePub)105072 hsv//swe
650 7a NATURAL SCIENCESx Earth and Related Environmental Sciencesx Physical Geography0 (SwePub)105072 hsv//eng
7001 a Petrescu, Ana Maria Roxanau Vrije Universiteit Amsterdam4 aut
7001 a Peylin, Philippeu Laboratoire des Sciences du Climat et de l'Environnement4 aut
7001 a Andrew, Robbie M.u CICERO Center for International Climate Research4 aut
7001 a Matthews, Bradleyu Austrian Federal Environmental Agency4 aut
7001 a Dentener, Franku European Commission Joint Research Centre, Brussels4 aut
7001 a Balkovič, Juraju International Institute for Applied Systems Analysis4 aut
7001 a Bastrikov, Vladislavu Science Partners4 aut
7001 a Becker, Meikeu Bjerknes Centre for Climate Research,University of Bergen4 aut
7001 a Broquet, Gregoireu Laboratoire des Sciences du Climat et de l'Environnement4 aut
7001 a Ciais, Philippeu Laboratoire des Sciences du Climat et de l'Environnement4 aut
7001 a Fortems-Cheiney, Audreyu Laboratoire des Sciences du Climat et de l'Environnement4 aut
7001 a Ganzenmüller, Raphaelu Ludwig-Maximilian University of Munich4 aut
7001 a Grassi, Giacomou European Commission Joint Research Centre, Brussels4 aut
7001 a Harris, Ianu University of East Anglia4 aut
7001 a Jones, Matthewu University of East Anglia4 aut
7001 a Knauer, Jürgenu Hawkesbury Institute for the Environment4 aut
7001 a Kuhnert, Matthiasu University of Aberdeen4 aut
7001 a Monteil, Guillaumeu Lund University,Lunds universitet,BECC: Biodiversity and Ecosystem services in a Changing Climate,Centrum för miljö- och klimatvetenskap (CEC),Naturvetenskapliga fakulteten,MERGE: ModElling the Regional and Global Earth system,Institutionen för naturgeografi och ekosystemvetenskap,Centre for Environmental and Climate Science (CEC),Faculty of Science,Dept of Physical Geography and Ecosystem Science4 aut0 (Swepub:lu)nate-gem
7001 a Munassar, Saqru Max Planck Institute for Biogeochemistry4 aut
7001 a Palmer, Paul I.u University of Edinburgh4 aut
7001 a Peters, Glen P.u CICERO Center for International Climate Research4 aut
7001 a Qiu, Chunjingu Laboratoire des Sciences du Climat et de l'Environnement4 aut
7001 a Schelhaas, Mart Janu Wageningen University4 aut
7001 a Tarasova, Oksanau World Meteorological Organization (WMO)4 aut
7001 a Vizzarri, Matteou University of Milan,European Commission Joint Research Centre, Brussels4 aut
7001 a Winkler, Karinau Karlsruhe Institute of Technology,Science Partners4 aut
7001 a Balsamo, Gianpaolou European Centre for Medium-range Weather Forecasts4 aut
7001 a Berchet, Antoineu Laboratoire des Sciences du Climat et de l'Environnement4 aut
7001 a Briggs, Peteru Hawkesbury Institute for the Environment4 aut
7001 a Brockmann, Patricku Laboratoire des Sciences du Climat et de l'Environnement4 aut
7001 a Chevallier, Frédéricu Laboratoire des Sciences du Climat et de l'Environnement4 aut
7001 a Conchedda, Giuliau Food and Agriculture Organization of the United Nations4 aut
7001 a Crippa, Monicau Uni Systems S.A.,European Commission Joint Research Centre, Brussels4 aut
7001 a Dellaert, Stijn N.C.u Netherlands Organisation for Applied Scientific Research (Utrecht)4 aut
7001 a Denier Van Der Gon, Hugo A.C.u Netherlands Organisation for Applied Scientific Research (Utrecht)4 aut
7001 a Filipek, Sarau Wageningen University4 aut
7001 a Friedlingstein, Pierreu University of Exeter4 aut
7001 a Fuchs, Richardu Karlsruhe Institute of Technology4 aut
7001 a Gauss, Michaelu Norwegian Meteorological Institute4 aut
7001 a Gerbig, Christophu Max Planck Institute for Biogeochemistry4 aut
7001 a Guizzardi, Diegou European Commission Joint Research Centre, Brussels4 aut
7001 a Günther, Dirku German Federal Environment Agency (Umweltbundesamt)4 aut
7001 a Houghton, Richard A.u Woodwell Climate Research Center4 aut
7001 a Janssens-Maenhout, Greetu European Commission Joint Research Centre, Brussels4 aut
7001 a Lauerwald, Ronnyu University of Paris-Saclay4 aut
7001 a Lerink, Basu Wageningen University4 aut
7001 a Luijkx, Ingrid T.u Wageningen University4 aut
7001 a Moulas, Géraudu ARTTIC4 aut
7001 a Scholze, Markou Lund University,Lunds universitet,BECC: Biodiversity and Ecosystem services in a Changing Climate,Centrum för miljö- och klimatvetenskap (CEC),Naturvetenskapliga fakulteten,MERGE: ModElling the Regional and Global Earth system,Institutionen för naturgeografi och ekosystemvetenskap,Centre for Environmental and Climate Science (CEC),Faculty of Science,Dept of Physical Geography and Ecosystem Science4 aut0 (Swepub:lu)nate-mks
7102 a Laboratoire des Sciences du Climat et de l'Environnementb Vrije Universiteit Amsterdam4 org
7102 a et al.
7730 t Earth System Science Datag 15:10, s. 4295-4370q 15:10<4295-4370x 1866-3508
8564 u http://dx.doi.org/10.5194/essd-15-4295-2023x freey FULLTEXT
8564 8u https://lup.lub.lu.se/record/a69604d8-2a94-4719-9f1d-6a8007457e85
8564 8u https://doi.org/10.5194/essd-15-4295-2023

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