Journal article
Interannual variability in the Australian carbon cycle over 2015-2019, based on assimilation of Orbiting Carbon Observatory-2 (OCO-2) satellite data
Y Villalobos, PJ Rayner, JD Silver, S Thomas, V Haverd, J Knauer, ZM Loh, NM Deutscher, DWT Griffith, DF Pollard
Atmospheric Chemistry and Physics | COPERNICUS GESELLSCHAFT MBH | Published : 2022
Abstract
In this study, we employ a regional inverse modelling approach to estimate monthly carbon fluxes over the Australian continent for 2015-2019 using the assimilation of the total column-averaged mole fractions of carbon dioxide from the Orbiting Carbon Observatory-2 (OCO-2, version 9) satellite. Subsequently, we study the carbon cycle variations and relate their fluctuations to anomalies in vegetation productivity and climate drivers. Our 5-year regional carbon flux inversion suggests that Australia was a carbon sink averaging-0.46 ± 0.08 PgC yr-1 (excluding fossil fuel emissions), largely influenced by a strong carbon uptake (-1.04 PgC yr-1) recorded in 2016. Australia's semi-arid ecosystems,..
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Grants
Awarded by Agenția Națională pentru Cercetare și Dezvoltare
Funding Acknowledgements
Yohanna Villalobos was funded by the National Agency for Research and Development (ANID) Becas Chile scholarship (grant no. 72170210) and also received support from the Education Infrastructure Fund of the Australian government and the Australian Research Council (ARC) Centre of Excellence for Climate Extremes (CLEX, grant no. CE170100023). The Darwin and Wollongong TCCON stations are supported by ARC (grant nos. DP160100598, LE0668470, DP140101552, DP110103118, and DP0879468); the Darwin station also receives support from NASA (grant nos. NAG5-12247 and NNG05GD07G). Nicholas M. Deutscher is funded by an ARC Future Fellowship (grant no. FT180100327).