Quantitative palaeotemperature reconstruction on MIS1, 5e, 11 interglacial episodes based on pollen assemblages from Lake Biwa sediments

基于琵琶湖沉积物花粉组合的 MIS1、5e、11 间冰期事件的定量古温度重建

• 批准号: 23540553
• 负责人: OKUDA Masaaki
• 金额: $ 3.08万
• 依托单位: Natural History Museum and Institute, Chiba
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23540553/
• 关键词: 古環境; 古気候; 琵琶湖; 花粉分析; モダンアナログ法; 将来予測; MIS11; 温暖化; 第四紀; 日本列島; 表層花粉; 間氷期; 完新世; 最終間氷期; 常緑カシ林; 中間温帯林

Using pollen analysis and modern analogue techniques (MAT) for Lake Biwa sediment (Japan), I present palaeotemperature levels of MIS1, MIS5e, MIS11 interglacials by quantitative reconstruction from fossil pollen percentage datasets.The MIS5e and MIS11 are seen as "analogues for the warmer Earth climate" because of their resemblance to the present climate state. Here I reveal that Lake Biwa (37N; Shiga Pref) was as warm as the Shionomisaki Cape (33.5N; Wakayama Pref) at the MIS11 interglacials 430,000 years ago. This temperature anomaly is calculated as 1-1.5 degrees warmer than the Hypsithermal episode 7000 years ago, and 2-2.5 degrees warmer than the preindustrial period 300 years ago.This warmer climate was rather lower than the expected global warming, but is similar when our effort to reduce atmospheric CO2 is successful. As there are no catastrophic evident known at MIS11 in geological records, this is a result encouraging us to confront with the global warming problem.

使用花粉分析和现代模拟技术（日本）（日本），我提出了古植物水平的MIS1，MIS5E，MIS5E，MIS11通过定量重建来自化石花粉百分比数据集的冰川间。地球气候“因为它们与当前的气候状态相似。在这里，我透露，比瓦湖（37n; shiga pref）像430，000年前的MIS11间冰川上的Shionomisaki Cape（33.5n; Wakayama Pref）一样温暖。该温度异常的计算为1-1.5度比7000年前的催眠期高1-1.5度，比300年前的工业前时期高2-2.5度。这种温暖的气候比预期的全球变暖低，但是当我们的情况相似时，我们减少大气二氧化碳的努力是成功的。由于在地质记录中没有在MIS11上知道的灾难性明显，因此这是鼓励我们面对全球变暖问题的结果。

项目成果

Progress in the reconstrsuction of Quaternary climate dynamics in the Northwest Pacific: A new modern analogue reference dataset and its application to the 430-kyr pollen record from Lake Biwa

西北太平洋第四纪气候动力学重建进展：新的现代模拟参考数据集及其在琵琶湖430-kyr花粉记录中的应用

• 发表时间: 2011
• 期刊: Earth- Science Reviews
• 作者: Pavel E. TARASOV;Takeshi NAKAGAWA;Dieter DEMSKE;Hermann ÖSTERLE;Yaeko IGARASHI;Junko KITAGAWA;Lyudmila MOKHOVA;Valentina BAZAROVA;Masaaki OKUDA;Katsuya GOTANDA;Norio MIYOSHI;Toshiyuki FUJIKI;Keiji TAKEMURA;Hitoshi YONENOBU;Andreas FLECK
• 通讯作者: Andreas FLECK

化石花粉から古気温を高精度復元するためのモダンアナログ整備 －琵琶湖堆積物の事例から－

现代模拟准备从花粉化石中高精度重建古温度 - 以琵琶湖沉积物为例 -

• 发表时间: 2011
• 作者: Kashiwabara;T.;Takahashi;Y.;Tanimizu;M.;Usui;A;奥田昌明
• 通讯作者: 奥田昌明