TY - JOUR
T1 - Contrasting carbon cycle responses of the tropical continents to the 2015–2016 El Niño
AU - Liu, Junjie
AU - Bowman, Kevin W.
AU - Schimel, David S.
AU - Parazoo, Nicolas C.
AU - Jiang, Zhe
AU - Lee, Meemong
AU - Bloom, A. Anthony
AU - Wunch, Debra
AU - Frankenberg, Christian
AU - Sun, Ying
AU - O’Dell, Christopher W.
AU - Gurney, Kevin R.
AU - Menemenlis, Dimitris
AU - Gierach, Michelle
AU - Crisp, David
AU - Eldering, Annmarie
N1 - Publisher Copyright:
© 2017, American Association for the Advancement of Science. All rights reserved.
PY - 2017/10/13
Y1 - 2017/10/13
N2 - The 2015–2016 El Niño led to historically high temperatures and low precipitation over the tropics, while the growth rate of atmospheric carbon dioxide (CO2) was the largest on record. Here we quantify the response of tropical net biosphere exchange, gross primary production, biomass burning, and respiration to these climate anomalies by assimilating column CO2, solar-induced chlorophyll fluorescence, and carbon monoxide observations from multiple satellites. Relative to the 2011 La Niña, the pantropical biosphere released 2.5 ± 0.34 gigatons more carbon into the atmosphere in 2015, consisting of approximately even contributions from three tropical continents but dominated by diverse carbon exchange processes. The heterogeneity of the carbon-exchange processes indicated here challenges previous studies that suggested that a single dominant process determines carbon cycle interannual variability.
AB - The 2015–2016 El Niño led to historically high temperatures and low precipitation over the tropics, while the growth rate of atmospheric carbon dioxide (CO2) was the largest on record. Here we quantify the response of tropical net biosphere exchange, gross primary production, biomass burning, and respiration to these climate anomalies by assimilating column CO2, solar-induced chlorophyll fluorescence, and carbon monoxide observations from multiple satellites. Relative to the 2011 La Niña, the pantropical biosphere released 2.5 ± 0.34 gigatons more carbon into the atmosphere in 2015, consisting of approximately even contributions from three tropical continents but dominated by diverse carbon exchange processes. The heterogeneity of the carbon-exchange processes indicated here challenges previous studies that suggested that a single dominant process determines carbon cycle interannual variability.
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U2 - 10.1126/science.aam5690
DO - 10.1126/science.aam5690
M3 - Article
C2 - 29026011
AN - SCOPUS:85031324307
SN - 0036-8075
VL - 358
JO - Science
JF - Science
IS - 6360
M1 - eaam5690
ER -