RUI: Continuous Holocene Records of Paleo-El Nino Events from Laminated Lacustrine Sediment Cores from Southern Ecuador

RUI：厄瓜多尔南部层状湖相沉积岩芯对古厄尔尼诺事件的连续全新世记录

• 批准号: 9809229
• 负责人: Donald Rodbell
• 金额: $ 9.77万
• 依托单位: Union College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-01-01 至 2001-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9809229&HistoricalAwards=false
• 关键词: RUI; Continuous; Holocene; Records; Paleo

AbstractATM-9809229Rodbell, Donald T.Union CollegeTitle: Continuous Holocene Records of Paleo-El Nino Events from Laminated Lacustrine Sediment Cores from Southern EcuadorThis award supports a study designed to recover and analyze sediment cores spanning the last 12,000 years from lakes in southwestern Ecuador. The study has the potential to provide the first continuous, high-resolution record of large magnitude paleo-El Nino events from a region that historically has been one of the most sensitive land areas to the ENSO. These records will shed light on variations in the frequency of El Nino events through the Holocene and on the issue of the age of onset of the ENSO in the Nino 1 region. The ENSO time series derived from lakes in southern Ecuador will enable a comparison of the frequency of El Nino events in the Nino 1 zone with oceanic conditions that prevailed at various times across the tropical Pacific. Such a comparison would further the evaluation of several models that have been developed to determine the atmospheric and oceanographic factors that control the frequency and severity of El Nino events, including the future frequency and severity of ENSO in an enhanced greenhouse world.

摘要ATM-9809229罗德贝尔，唐纳德T.联合学院标题：从厄瓜多尔南部分层湖泊沉积物岩心中连续记录的古厄尔尼诺事件该奖项支持一项旨在恢复和分析厄瓜多尔西南部湖泊过去12,000年沉积物岩心的研究。 这项研究有可能提供第一个连续的，高分辨率的记录大规模的古厄尔尼诺事件的区域，历史上一直是最敏感的陆地地区之一的ENSO。 这些记录将有助于了解整个全新世厄尔尼诺事件频率的变化以及厄尔尼诺1区厄尔尼诺/南方涛动开始的年龄问题。 从厄瓜多尔南部湖泊得到的厄尔尼诺/南方涛动时间序列将使人们能够比较厄尔尼诺1区厄尔尼诺事件的频率和整个热带太平洋不同时期的海洋状况。 这种比较将进一步评价为确定控制厄尔尼诺事件的频率和严重程度的大气和海洋因素而开发的若干模型，包括温室效应增强的世界中厄尔尼诺/南方涛动的未来频率和严重程度。