Effects of extreme meteorological conditions in 2018 on European methane emissions estimated using atmospheric inversions
Autor: | Thompson, R. L., Groot Zwaaftink, C. D., Brunner, D., Tsuruta, A., Aalto, T., Raivonen, M., Crippa, M., Solazzo, E., Guizzardi, D., Regnier, P., Maisonnier, M. |
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Přispěvatelé: | Institute for Atmospheric and Earth System Research (INAR), Micrometeorology and biogeochemical cycles |
Rok vydání: | 2021 |
Předmět: |
WETLANDS
CH4 010504 meteorology & atmospheric sciences methane SCHEME General Mathematics emissions General Engineering anomaly General Physics and Astronomy Articles 010501 environmental sciences 114 Physical sciences 01 natural sciences LANDFILL Europe MODEL 13. Climate action GROWTH Seasons atmospheric inversion Research Articles 0105 earth and related environmental sciences |
Zdroj: | Philosophical transactions. Series A, Mathematical, physical, and engineering sciences Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences |
ISSN: | 1471-2962 1364-503X |
Popis: | The effect of the 2018 extreme meteorological conditions in Europe on methane (CH4) emissions is examined using estimates from four atmospheric inversions calculated for the period 2005–2018. For most of Europe, we find no anomaly in 2018 compared to the 2005–2018 mean. However, we find a positive anomaly for the Netherlands in April, which coincided with positive temperature and soil moisture anomalies suggesting an increase in biogenic sources. We also find a negative anomaly for the Netherlands for September–October, which coincided with a negative anomaly in soil moisture, suggesting a decrease in soil sources. In addition, we find a positive anomaly for Serbia in spring, summer and autumn, which coincided with increases in temperature and soil moisture, again suggestive of changes in biogenic sources, and the annual emission for 2018 was 33 ± 38% higher than the 2005–2017 mean. These results indicate that CH4emissions from areas where the natural source is thought to be relatively small can still vary due to meteorological conditions. At the European scale though, the degree of variability over 2005–2018 was small, and there was negligible impact on the annual CH4emissions in 2018 despite the extreme meteorological conditions.This article is part of a discussion meeting issue ‘Rising methane: is warming feeding warming? (part 2)’. |
Databáze: | OpenAIRE |
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