DOI: 10.5194/cp-14-1229-2018
Scopus记录号: 2-s2.0-85051744882
论文题名: Deglacial carbon cycle changes observed in a compilation of 127 benthic σ13C time series (20-6ka)
作者: Peterson C.D. ; Lisiecki L.E.
刊名: Climate of the Past
ISSN: 18149324
出版年: 2018
卷: 14, 期: 8 起始页码: 1229
结束页码: 1252
语种: 英语
Scopus关键词: Cibicides wuellerstorfi
英文摘要: We present a compilation of 127 time series σ13C records from Cibicides wuellerstorfi spanning the last deglaciation (20-6ka) which is well-suited for reconstructing large-scale carbon cycle changes, especially for comparison with isotope-enabled carbon cycle models. The age models for the σ13C records are derived from regional planktic radiocarbon compilations (Stern and Lisiecki 2014). The σ13C records were stacked in nine different regions and then combined using volume-weighted averages to create intermediate, deep, and global σ13C stacks. These benthic σ13C stacks are used to reconstruct changes in the size of the terrestrial biosphere and deep ocean carbon storage. The timing of change in global mean σ13C is interpreted to indicate terrestrial biosphere expansion from 19-6ka. The σ13C gradient between the intermediate and deep ocean, which we interpret as a proxy for deep ocean carbon storage, matches the pattern of atmospheric CO2 change observed in ice core records. The presence of signals associated with the terrestrial biosphere and atmospheric CO2 indicates that the compiled σ13C records have sufficient spatial coverage and time resolution to accurately reconstruct large-scale carbon cycle changes during the glacial termination. © Author(s) 2018. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/109534
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
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作者单位: Department of Earth Sciences, University of California Riverside, Riverside, CA, United States; Department of Earth Science, University of California Santa Barbara, Santa Barbara, CA, United States
Recommended Citation:
Peterson C.D.,Lisiecki L.E.. Deglacial carbon cycle changes observed in a compilation of 127 benthic σ13C time series (20-6ka)[J]. Climate of the Past,2018-01-01,14(8)