Knowledge of the spatial distribution of the fluxes of greenhouse gases (GHGs) and their temporal variability as well as flux attribution to natural and anthropogenic processes is essential to monitoring the progress in mitigating anthropogenic emissions under the Paris Agreement and to inform its global stocktake. This study provides a consolidated synthesis of CH4 and N2O emissions using bottom-up (BU) and top-down (TD) approaches for the European Union and UK (EU27 + UK) and updates earlier syntheses (Petrescu et al., 2020, 2021). Even if currently comparison between CH4 and N2O inversion estimates and NGHGIs is highly uncertain because of the large spread in the inversion results, TD inversions inferred from atmospheric observations represent the most independent data against which inventory totals can be compared. With anticipated improvements in atmospheric modeling and observations, as well as modeling of natural fluxes, TD inversions may arguably emerge as the most powerful tool for verifying emission inventories for CH4, N2O and other GHGs. The referenced datasets related to figures are visualized at https://doi.org/10.5281/zenodo.7553800 (Petrescu et al., 2023).
PETRESCU Roxana;
QIU Chunjing;
MCGRATH Matthew;
PEYLIN Philippe;
PETERS Glen;
CIAIS Philippe;
THOMPSON Rona;
TSURUTA Aki;
BRUNNER Dominik;
KUHNERT M;
MATTHEWS Bradley;
PALMER Paul;
TARASOVA O.;
REGNIER Pierre;
LAUERWALD Ronny;
BASTVIKEN D.;
HÖGLUND-ISAKSSON Lena;
WINIWARTER Wilfried;
ETIOPE Giuseppe;
AALTO Tuula;
BALSAMO Gianpaolo;
BASTRIKOV Vladislav;
BERCHET Antoine;
BROCKMANN Patrick;
CIOTOLI Giancarlo;
CONCHEDDA Giulia;
CRIPPA Monica;
DENTENER Franciscus;
GROOT ZWAAFTINK Christine;
GUIZZARDI Diego;
GÜNTHER Dirk;
HAUSSAIRE Jean-Matthieu;
HOUWELING S.;
JANSSENS-MAENHOUT Greet;
KOUYATE Massaer;
LEIP A;
LEPPÄNEN Antti;
LUGATO Emanuele;
MAISONNIER Manon;
MANNING Alistair J.;
MARKKANEN Tiina;
MCNORTON Joe;
MUNTEAN Marilena;
OREGGIONI Gabriel;
PATRA Prabir;
PERUGINI Lucia;
PISON Isabelle;
RAIVONEN Maarit;
SAUNOIS Marielle;
SEGERS Arjo;
SMITH Pete;
SOLAZZO Efisio;
TIAN Hanqin;
TUBIELLO Francesco;
VESALA Timo;
VAN DER WERF G.R.;
WILSON Christopher;
ZAEHLE Sönke;
2023-03-23
COPERNICUS GESELLSCHAFT MBH
JRC131187
1866-3508 (online),
https://essd.copernicus.org/articles/15/1197/2023/,
https://publications.jrc.ec.europa.eu/repository/handle/JRC131187,
10.5194/essd-15-1197-2023 (online),
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