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#Enso bozeman driver#

#Enso bozeman driver#

Here, we show that the dominant driver varies with ENSO phase. Past studies have presented opposing views about whether temperature or precipitation is the primary factor driving the response of the land carbon sink to ENSO. (ORNL), Oak Ridge, TN (United States) Sponsoring Org.: USDOE Office of Science (SC), Biological and Environmental Research (BER) OSTI Identifier: 1376649 Grant/Contract Number: AC05-00OR22725 Resource Type: Journal Article: Accepted Manuscript Journal Name: Environmental Research Letters Additional Journal Information: Journal Volume: 12 Journal Issue: 6 Journal ID: ISSN 1748-9326 Publisher: IOP Publishing Country of Publication: United States Language: English Subject: 54 ENVIRONMENTAL SCIENCES climate-carbon feedback tropical ecosystems temperature precipitation El Niño-Southern Oscillation = ,Ĭlimate variability associated with the El Niño-Southern Oscillation (ENSO) and its consequent impacts on land carbon sink interannual variability have been used as a basis for investigating carbon cycle responses to climate variability more broadly, and to inform the sensitivity of the tropical carbon budget to climate change. Publication Date: Thu Jun 01 00:00: Research Org.: Oak Ridge National Lab. NASA Ames Research Center (ARC), Moffett Field, Mountain View, CA (United States).of Kentucky, Lexington, KY (United States) and Iowa State Univ., Ames, IA (United States) of Illinois, Urbana-Champaign, IL (United States) for Environmental Studies, Tsukuba (Japan) of Technology (CalTech), Pasadena, CA (United States)

Montana State Univ., Bozeman, MT (United States).

Alternative Energies and Atomic Energy Commission (CEA), Gif sur Yvette (France).

Northern Arizona Univ., Flagstaff, AZ (United States).

Woods Hole Research Center, Falmouth, MA (United States).

Furthermore, we find that none of a suite of ten contemporary terrestrial biosphere models captures these ENSO-phase-dependent responses, highlighting a key uncertainty in modeling climate impacts on the future of the global land carbon sink.

This finding points to an ENSO-phase-dependent interplay between water availability and temperature in controlling the carbon uptake response to climate variations in tropical ecosystems. And whereas tropical temperature explains sink dynamics following El Niño conditions (r TG,P = 0.59, p < 0.01), the post La Niña sink is driven largely by tropical precipitation (r PG,T= -0.46, p = 0.04). We show that the dominant driver varies with ENSO phase. Climate variability associated with the El Niño-Southern Oscillation (ENSO) and its consequent impacts on land carbon sink interannual variability have been used as a basis for investigating carbon cycle responses to climate variability more broadly, and to inform the sensitivity of the tropical carbon budget to climate change.