Come a little bit closer: A high-resolution climate study of the early Paleogene Laramide foreland

Abstract

Research Article| February 01, 2006 Come a little bit closer: A high-resolution climate study of the early Paleogene Laramide foreland Jacob O. Sewall; Jacob O. Sewall 1Department of Earth 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 Cirbus Sloan Lisa Cirbus Sloan 1Department of Earth 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 Jacob O. Sewall 1Department of Earth Sciences, University of California–Santa Cruz, 1156 High Street, Santa Cruz, California 95064, USA Lisa Cirbus Sloan 1Department of Earth Sciences, University of California–Santa Cruz, 1156 High Street, Santa Cruz, California 95064, USA Publisher: Geological Society of America Received: 30 Aug 2005 Revision Received: 03 Oct 2005 Accepted: 07 Oct 2005 First Online: 09 Mar 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (2006) 34 (2): 81–84. https://doi.org/10.1130/G22177.1 Article history Received: 30 Aug 2005 Revision Received: 03 Oct 2005 Accepted: 07 Oct 2005 First Online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Jacob O. Sewall, Lisa Cirbus Sloan; Come a little bit closer: A high-resolution climate study of the early Paleogene Laramide foreland. Geology 2006;; 34 (2): 81–84. doi: https://doi.org/10.1130/G22177.1 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 The early Paleogene greenhouse climate has long captured the attention of researchers. However, due to limited data and the coarse spatial resolution of general circulation model (GCM) results, it has proven difficult to investigate early Paleogene climate at the level of detail characteristic of the actual climate system. We present a high-resolution regional climate modeling study of the North American Laramide foreland. Our simulation depicts early Paleogene climate dynamics in western North America with unprecedented detail. Increased horizontal resolution improves matches between modeled temperatures and data in some basins; however, large-scale cold biases found in prior GCM simulations persist. Our study provides insight into the existence of snow and perennial ice in the Laramide highlands and northwestern Cordillera and describes the summer monsoon along the Rocky Mountain front in great detail. Monsoonal precipitation initiates in the southeastern Rockies in May, penetrates north and west as temperatures warm, and peaks at 1 cm/day along the southern and central mountain front; basins farther to the north and west are drier. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.