{"id":5463,"date":"2018-03-15T02:00:30","date_gmt":"2018-03-15T02:00:30","guid":{"rendered":"http:\/\/lib.itenas.ac.id\/kti\/?p=5463"},"modified":"2018-03-15T02:01:23","modified_gmt":"2018-03-15T02:01:23","slug":"tropical-climate-vegetation-changes-heinrich-event-1-model-data-comparison","status":"publish","type":"post","link":"http:\/\/lib.itenas.ac.id\/kti\/?p=5463","title":{"rendered":"Tropical climate and vegetation changes during Heinrich Event 1: a model-data comparison"},"content":{"rendered":"<p><span class=\"pb_abstract\">Abrupt climate changes from 18 to 15 thousand years before present (kyr BP) associated with Heinrich Event 1 (HE1) had a strong impact on vegetation patterns not only at high latitudes of the Northern Hemisphere, but also in the tropical regions around the Atlantic Ocean. To gain a better understanding of the linkage between high and low latitudes, we used the University of Victoria (UVic) Earth System-Climate Model (ESCM) with dynamical vegetation and land surface components to simulate four scenarios of climate-vegetation interaction: the pre-industrial era, the Last Glacial Maximum (LGM), and a Heinrich-like event with two different climate backgrounds (interglacial and glacial). We calculated mega-biomes from the plant-functional types (PFTs) generated by the model to allow for a direct comparison between model results and palynological vegetation reconstructions.<\/span><\/p>\n<p>Our calculated mega-biomes for the pre-industrial period and the LGM corresponded well with biome reconstructions of the modern and LGM time slices, respectively, except that our pre-industrial simulation predicted the dominance of grassland in southern Europe and our LGM simulation resulted in more forest cover in tropical and sub-tropical South America.<\/p>\n<p>The HE1-like simulation with a glacial climate background produced sea-surface temperature patterns and enhanced inter-hemispheric thermal gradients in accordance with the &#8220;bipolar seesaw&#8221; hypothesis. We found that the cooling of the Northern Hemisphere caused a southward shift of those PFTs that are indicative of an increased desertification and a retreat of broadleaf forests in West Africa and northern South America. The mega-biomes from our HE1 simulation agreed well with paleovegetation data from tropical Africa and northern South America. Thus, according to our model-data comparison, the reconstructed vegetation changes for the tropical regions around the Atlantic Ocean were physically consistent with the remote effects of a Heinrich event under a glacial climate background.<\/p>\n<p><strong>Dibuat Oleh :\u00a0\u00a0<\/strong><span class=\"pb_authors\">D. Handiani, A. Paul, and L. Dupont<\/span><\/p>\n<p><strong>Alamat e-mail: <\/strong>dhandiani@marum.de<\/p>\n<p><strong>Kata Kunci:-<\/strong><\/p>\n<p><strong>Keterangan :<\/strong> Karya Tulis Ilmiah ini dimuat pada Climate of The Past : An interactive open-access journal of the European Geoscience Union, volume 8 issue 1,\u00a0 37-57, 2012<\/p>\n<p><a href=\"https:\/\/www.clim-past.net\/8\/37\/2012\/\">Tropical climate and vegetation changes during Heinrich Event 1: a model-data comparison<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Abrupt climate changes from 18 to 15 thousand years before present (kyr BP) associated with Heinrich Event 1 (HE1) had a strong impact on vegetation patterns not only at high latitudes of the Northern Hemisphere, but also in the tropical regions around the Atlantic Ocean. To gain a better understanding of the linkage between high [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[118,147],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.8 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Tropical climate and vegetation changes during Heinrich Event 1: a model-data comparison - Karya Tulis Ilmiah Itenas<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/lib.itenas.ac.id\/kti\/?p=5463\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Tropical climate and vegetation changes during Heinrich Event 1: a model-data comparison - Karya Tulis Ilmiah Itenas\" \/>\n<meta property=\"og:description\" content=\"Abrupt climate changes from 18 to 15 thousand years before present (kyr BP) associated with Heinrich Event 1 (HE1) had a strong impact on vegetation patterns not only at high latitudes of the Northern Hemisphere, but also in the tropical regions around the Atlantic Ocean. To gain a better understanding of the linkage between high [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/lib.itenas.ac.id\/kti\/?p=5463\" \/>\n<meta property=\"og:site_name\" content=\"Karya Tulis Ilmiah Itenas\" \/>\n<meta property=\"article:published_time\" content=\"2018-03-15T02:00:30+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2018-03-15T02:01:23+00:00\" \/>\n<meta name=\"author\" content=\"Asep Kamaludin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Asep Kamaludin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/lib.itenas.ac.id\/kti\/?p=5463\",\"url\":\"https:\/\/lib.itenas.ac.id\/kti\/?p=5463\",\"name\":\"Tropical climate and vegetation changes during Heinrich Event 1: a model-data comparison - Karya Tulis Ilmiah Itenas\",\"isPartOf\":{\"@id\":\"http:\/\/lib.itenas.ac.id\/kti\/#website\"},\"datePublished\":\"2018-03-15T02:00:30+00:00\",\"dateModified\":\"2018-03-15T02:01:23+00:00\",\"author\":{\"@id\":\"http:\/\/lib.itenas.ac.id\/kti\/#\/schema\/person\/f3b1ab90b912c959a933991c65c59fc9\"},\"breadcrumb\":{\"@id\":\"https:\/\/lib.itenas.ac.id\/kti\/?p=5463#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/lib.itenas.ac.id\/kti\/?p=5463\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/lib.itenas.ac.id\/kti\/?p=5463#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"http:\/\/lib.itenas.ac.id\/kti\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Tropical climate and vegetation changes during Heinrich Event 1: a model-data comparison\"}]},{\"@type\":\"WebSite\",\"@id\":\"http:\/\/lib.itenas.ac.id\/kti\/#website\",\"url\":\"http:\/\/lib.itenas.ac.id\/kti\/\",\"name\":\"Karya Tulis Ilmiah Itenas\",\"description\":\"Karya Tulis Ilmiah Itenas\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"http:\/\/lib.itenas.ac.id\/kti\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"http:\/\/lib.itenas.ac.id\/kti\/#\/schema\/person\/f3b1ab90b912c959a933991c65c59fc9\",\"name\":\"Asep Kamaludin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"http:\/\/lib.itenas.ac.id\/kti\/#\/schema\/person\/image\/\",\"url\":\"http:\/\/0.gravatar.com\/avatar\/f3fff432f1af1e74180f39e33a202251?s=96&d=mm&r=g\",\"contentUrl\":\"http:\/\/0.gravatar.com\/avatar\/f3fff432f1af1e74180f39e33a202251?s=96&d=mm&r=g\",\"caption\":\"Asep Kamaludin\"},\"url\":\"http:\/\/lib.itenas.ac.id\/kti\/?author=6\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Tropical climate and vegetation changes during Heinrich Event 1: a model-data comparison - Karya Tulis Ilmiah Itenas","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/lib.itenas.ac.id\/kti\/?p=5463","og_locale":"en_US","og_type":"article","og_title":"Tropical climate and vegetation changes during Heinrich Event 1: a model-data comparison - Karya Tulis Ilmiah Itenas","og_description":"Abrupt climate changes from 18 to 15 thousand years before present (kyr BP) associated with Heinrich Event 1 (HE1) had a strong impact on vegetation patterns not only at high latitudes of the Northern Hemisphere, but also in the tropical regions around the Atlantic Ocean. 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