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Carbon dioxide and the early Eocene climate of western North America

2009; Geological Society of America; Volume: 37; Issue: 9 Linguagem: Inglês

10.1130/g30090a.1

1943-2682

Bridget Thrasher, L. C. Sloan,

Geological and Geochemical Analysis

Research Article| September 01, 2009 Carbon dioxide and the early Eocene climate of western North America Bridget L. Thrasher; Bridget L. Thrasher 1Department of Earth and Planetary Sciences, University of California–Santa Cruz, 1156 High Street, Santa Cruz, California 95064, USA Search for other works by this author on: GSW Google Scholar Lisa C. Sloan Lisa C. Sloan 1Department of Earth and Planetary Sciences, University of California–Santa Cruz, 1156 High Street, Santa Cruz, California 95064, USA Search for other works by this author on: GSW Google Scholar Author and Article Information Bridget L. Thrasher 1Department of Earth and Planetary Sciences, University of California–Santa Cruz, 1156 High Street, Santa Cruz, California 95064, USA Lisa C. Sloan 1Department of Earth and Planetary Sciences, University of California–Santa Cruz, 1156 High Street, Santa Cruz, California 95064, USA Publisher: Geological Society of America Received: 30 Jan 2009 Revision Received: 13 Apr 2009 Accepted: 28 Apr 2009 First Online: 02 Mar 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 © 2009 Geological Society of America Geology (2009) 37 (9): 807–810. https://doi.org/10.1130/G30090A.1 Article history Received: 30 Jan 2009 Revision Received: 13 Apr 2009 Accepted: 28 Apr 2009 First Online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Bridget L. Thrasher, Lisa C. Sloan; Carbon dioxide and the early Eocene climate of western North America. Geology 2009;; 37 (9): 807–810. doi: https://doi.org/10.1130/G30090A.1 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract We present results from an early Eocene (ca. 50–56 Ma ago) regional modeling sensitivity experiment that examines the role of atmospheric CO2 in determining the regional climate of western North America. This is the first paleoclimate modeling study to investigate the possible role of increased CO2 in influencing the early Eocene climate on a regional scale. We take a regional modeling approach with the goal of using higher spatial resolution to elucidate the role of specific climate forcing mechanisms (here, CO2) upon a region with relatively dense paleoclimate proxy data coverage. The spatial resolution of global climate models does not permit the close comparison of model results to proxy climate data in a way that helps to distinguish between regional and global climate forcings, which is a goal of this study. While our results suggest that CO2 was most likely at least as high as 2240 ppm, this high concentration does not yield a regional climate that matches regional proxy data in all aspects. Therefore, in combination with high atmospheric CO2, other forcing factors must have played significant roles in defining the nature of early Eocene climate. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.