Weak northern and strong tropical land carbon uptake from vertical profiles of atmospheric CO2

Britton B. Stephens, Kevin Gurney, Pieter P. Tans, Colm Sweeney, Wouter Peters, Lori Bruhwiler, Philippe Ciais, Michel Ramonet, Philippe Bousquet, Takakiyo Nakazawa, Shuji Aoki, Toshinobu Machida, Gen Inoue, Nikolay Vinnichenko, Jon Lloyd, Armin Jordan, Martin Heimann, Olga Shibistova, Ray L. Langenfelds, L. Paul SteeleRoger J. Francey, A. Scott Denning

Research output: Contribution to journalArticle

500 Citations (Scopus)

Abstract

Measurements of midday vertical atmospheric CO2 distributions reveal annual-mean vertical CO2 gradients that are inconsistent with atmospheric models that estimate a large transfer of terrestrial carbon from tropical to northern latitudes. The three models that most closely reproduce the observed annual-mean vertical CO2 gradients estimate weaker northern uptake of -1.5 petagrams of carbon per year (Pg C year-1) and weaker tropical emission of +0.1 Pg C year-1 compared with previous consensus estimates of -2.4 and +1.8 Pg C year-1, respectively. This suggests that northern terrestrial uptake of industrial CO2 emissions plays a smaller role than previously thought and that, after subtracting land-use emissions, tropical ecosystems may currently be strong sinks for CO2.

Original languageEnglish (US)
Pages (from-to)1732-1735
Number of pages4
JournalScience
Volume316
Issue number5832
DOIs
StatePublished - Jun 22 2007
Externally publishedYes

Fingerprint

vertical profile
carbon
land use
land
atmospheric model
distribution
tropical ecosystem

ASJC Scopus subject areas

  • General

Cite this

Stephens, B. B., Gurney, K., Tans, P. P., Sweeney, C., Peters, W., Bruhwiler, L., ... Denning, A. S. (2007). Weak northern and strong tropical land carbon uptake from vertical profiles of atmospheric CO2. Science, 316(5832), 1732-1735. https://doi.org/10.1126/science.1137004

Weak northern and strong tropical land carbon uptake from vertical profiles of atmospheric CO2. / Stephens, Britton B.; Gurney, Kevin; Tans, Pieter P.; Sweeney, Colm; Peters, Wouter; Bruhwiler, Lori; Ciais, Philippe; Ramonet, Michel; Bousquet, Philippe; Nakazawa, Takakiyo; Aoki, Shuji; Machida, Toshinobu; Inoue, Gen; Vinnichenko, Nikolay; Lloyd, Jon; Jordan, Armin; Heimann, Martin; Shibistova, Olga; Langenfelds, Ray L.; Steele, L. Paul; Francey, Roger J.; Denning, A. Scott.

In: Science, Vol. 316, No. 5832, 22.06.2007, p. 1732-1735.

Research output: Contribution to journalArticle

Stephens, BB, Gurney, K, Tans, PP, Sweeney, C, Peters, W, Bruhwiler, L, Ciais, P, Ramonet, M, Bousquet, P, Nakazawa, T, Aoki, S, Machida, T, Inoue, G, Vinnichenko, N, Lloyd, J, Jordan, A, Heimann, M, Shibistova, O, Langenfelds, RL, Steele, LP, Francey, RJ & Denning, AS 2007, 'Weak northern and strong tropical land carbon uptake from vertical profiles of atmospheric CO2', Science, vol. 316, no. 5832, pp. 1732-1735. https://doi.org/10.1126/science.1137004
Stephens BB, Gurney K, Tans PP, Sweeney C, Peters W, Bruhwiler L et al. Weak northern and strong tropical land carbon uptake from vertical profiles of atmospheric CO2. Science. 2007 Jun 22;316(5832):1732-1735. https://doi.org/10.1126/science.1137004
Stephens, Britton B. ; Gurney, Kevin ; Tans, Pieter P. ; Sweeney, Colm ; Peters, Wouter ; Bruhwiler, Lori ; Ciais, Philippe ; Ramonet, Michel ; Bousquet, Philippe ; Nakazawa, Takakiyo ; Aoki, Shuji ; Machida, Toshinobu ; Inoue, Gen ; Vinnichenko, Nikolay ; Lloyd, Jon ; Jordan, Armin ; Heimann, Martin ; Shibistova, Olga ; Langenfelds, Ray L. ; Steele, L. Paul ; Francey, Roger J. ; Denning, A. Scott. / Weak northern and strong tropical land carbon uptake from vertical profiles of atmospheric CO2. In: Science. 2007 ; Vol. 316, No. 5832. pp. 1732-1735.
@article{3c4989f5cc594f15a8a26a34e90d4d6e,
title = "Weak northern and strong tropical land carbon uptake from vertical profiles of atmospheric CO2",
abstract = "Measurements of midday vertical atmospheric CO2 distributions reveal annual-mean vertical CO2 gradients that are inconsistent with atmospheric models that estimate a large transfer of terrestrial carbon from tropical to northern latitudes. The three models that most closely reproduce the observed annual-mean vertical CO2 gradients estimate weaker northern uptake of -1.5 petagrams of carbon per year (Pg C year-1) and weaker tropical emission of +0.1 Pg C year-1 compared with previous consensus estimates of -2.4 and +1.8 Pg C year-1, respectively. This suggests that northern terrestrial uptake of industrial CO2 emissions plays a smaller role than previously thought and that, after subtracting land-use emissions, tropical ecosystems may currently be strong sinks for CO2.",
author = "Stephens, {Britton B.} and Kevin Gurney and Tans, {Pieter P.} and Colm Sweeney and Wouter Peters and Lori Bruhwiler and Philippe Ciais and Michel Ramonet and Philippe Bousquet and Takakiyo Nakazawa and Shuji Aoki and Toshinobu Machida and Gen Inoue and Nikolay Vinnichenko and Jon Lloyd and Armin Jordan and Martin Heimann and Olga Shibistova and Langenfelds, {Ray L.} and Steele, {L. Paul} and Francey, {Roger J.} and Denning, {A. Scott}",
year = "2007",
month = "6",
day = "22",
doi = "10.1126/science.1137004",
language = "English (US)",
volume = "316",
pages = "1732--1735",
journal = "Science",
issn = "0036-8075",
publisher = "American Association for the Advancement of Science",
number = "5832",

}

TY - JOUR

T1 - Weak northern and strong tropical land carbon uptake from vertical profiles of atmospheric CO2

AU - Stephens, Britton B.

AU - Gurney, Kevin

AU - Tans, Pieter P.

AU - Sweeney, Colm

AU - Peters, Wouter

AU - Bruhwiler, Lori

AU - Ciais, Philippe

AU - Ramonet, Michel

AU - Bousquet, Philippe

AU - Nakazawa, Takakiyo

AU - Aoki, Shuji

AU - Machida, Toshinobu

AU - Inoue, Gen

AU - Vinnichenko, Nikolay

AU - Lloyd, Jon

AU - Jordan, Armin

AU - Heimann, Martin

AU - Shibistova, Olga

AU - Langenfelds, Ray L.

AU - Steele, L. Paul

AU - Francey, Roger J.

AU - Denning, A. Scott

PY - 2007/6/22

Y1 - 2007/6/22

N2 - Measurements of midday vertical atmospheric CO2 distributions reveal annual-mean vertical CO2 gradients that are inconsistent with atmospheric models that estimate a large transfer of terrestrial carbon from tropical to northern latitudes. The three models that most closely reproduce the observed annual-mean vertical CO2 gradients estimate weaker northern uptake of -1.5 petagrams of carbon per year (Pg C year-1) and weaker tropical emission of +0.1 Pg C year-1 compared with previous consensus estimates of -2.4 and +1.8 Pg C year-1, respectively. This suggests that northern terrestrial uptake of industrial CO2 emissions plays a smaller role than previously thought and that, after subtracting land-use emissions, tropical ecosystems may currently be strong sinks for CO2.

AB - Measurements of midday vertical atmospheric CO2 distributions reveal annual-mean vertical CO2 gradients that are inconsistent with atmospheric models that estimate a large transfer of terrestrial carbon from tropical to northern latitudes. The three models that most closely reproduce the observed annual-mean vertical CO2 gradients estimate weaker northern uptake of -1.5 petagrams of carbon per year (Pg C year-1) and weaker tropical emission of +0.1 Pg C year-1 compared with previous consensus estimates of -2.4 and +1.8 Pg C year-1, respectively. This suggests that northern terrestrial uptake of industrial CO2 emissions plays a smaller role than previously thought and that, after subtracting land-use emissions, tropical ecosystems may currently be strong sinks for CO2.

UR - http://www.scopus.com/inward/record.url?scp=34250798460&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34250798460&partnerID=8YFLogxK

U2 - 10.1126/science.1137004

DO - 10.1126/science.1137004

M3 - Article

AN - SCOPUS:34250798460

VL - 316

SP - 1732

EP - 1735

JO - Science

JF - Science

SN - 0036-8075

IS - 5832

ER -