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Satellite-inferred European carbon sink larger than expected

Reuter, M.; Buchwitz, M.; Hilker, M.; Heymann, J.; Schneising, O.; Pillai, D.; Bovensmann, H.; Burrows, J.P.; Bösch, H.; Parker, R.; Butz, A.; Hasekamp, O.; O'Dell, C.W.; Yoshida, Y.; Gerbig, C.; Nehrkorn, T.; Deutscher, N.M.; Warneke, T.; Notholt, J.; Hase, F.; ... mehr

Abstract (englisch):
Current knowledge about the European terrestrial biospheric carbon sink, from the Atlantic to the Urals, relies upon bottom-up inventory and surface flux inverse model estimates (e.g. 0.27±0.16 GtC a−1 for 2000–2005 (Schulze et al., 2009), 0.17±0.44 GtC a−1 for 2001–2007 (Peters et al., 2010), 0.45±0.40 GtC a−1 for 2010 (Chevallier et al., 2014), 0.40±0.42 GtC a−1 for 2001–2004 (Peylin et al., 2013)). Inverse models assimilate in situ CO2 atmospheric concentrations measured by surface-based air sampling networks. The intrinsic sparseness of these networks is one reason for the relatively large flux uncertainties (Peters et al., 2010; Bruhwiler et al., 2011). Satellite-based CO2 measurements have the potential to reduce these uncertainties (Miller et al., 2007; Chevallier et al., 2007). Global inversion experiments using independent models and independent GOSAT satellite data products consistently derived a considerably larger European sink (1.0–1.3 GtC a−1 for 09/2009–08/2010 (Basu et al., 2013), 1.2–1.8 GtC a−1 in 2010 (Chevallier et al., 2014)). However, these results have been considered unrealistic due to potential retrieval bia ... mehr

Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung - Atmosphärische Spurenstoffe und Fernerkundung (IMK-ASF)
Institut für Meteorologie und Klimaforschung - Atmosphärische Umweltforschung (IMK-IFU)
Publikationstyp Zeitschriftenaufsatz
Jahr 2014
Sprache Englisch
Identifikator DOI: 10.5194/acp-14-13739-2014
ISSN: 1680-7316, 1680-7324
URN: urn:nbn:de:swb:90-492524
KITopen ID: 1000049252
HGF-Programm 12.03.01; LK 01
Erschienen in Atmospheric chemistry and physics
Band 14
Heft 24
Seiten 13739-13753
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