Chronology of Multiple Time-Scale Climate Events in the Americas; Yucatan, Mexico; March 10-12, 2005

美洲多个时间尺度气候事件的年表；

• 批准号: 0454625
• 负责人: David Stahle
• 金额: $ 1.38万
• 依托单位: University of Arkansas
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-12-01 至 2005-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0454625&HistoricalAwards=false
• 关键词: Chronology; Multiple; Time; Scale; Climate

This award helps support a conference at the University of Yucatan Field Station in Hobonil, Yucatan entitled, "Chronology of Multiple Time-Scale Climate Events in the Americas." The purpose of the workshop is to convene an interdisciplinary group of scholars to discuss the extent and quality of information directly relevant to the understanding of drought in the region over the past 1,500 years. The workshop will examine drought from the perspective of cultural, historical, and scientific evidence and impacts.The organizer's objectives are to: - Define the history of extreme annual, decadal, and multi-decadal droughts in the Americas with the greatest accuracy and precision in dating possible. Evaluate the record of these drought events in multiple historical and paleoclimate archives. - Refine the chronology of El Nino/Southern Oscillation (ENSO) events based on pre-instrumental and qualitative (historical) documentary information from the Americas. Evaluate the pre-instrumental record of ENSO events in the context of high-resolution regional paleoclimate records, such as those from tree rings and ice cores. - Examine the record of ENSO intensity and frequency to evaluate decadal changes in the ENSO system and to learn how low-frequency changes in ENSO may have impacted societies in the Americas. - Explore the means to use high-resolution paleoclimate records to better define periods of persistent drought and floods that could be related to ENSO variability. - Highlight and discuss possible significant societal impacts during the historical period of the Americas since European arrival that may have a plausible connection to ENSO variability.

该奖项有助于支持在尤卡坦州霍博尼尔尤卡坦大学野外站举行的题为“美洲多时间尺度气候事件年表”的会议。“讲习班的目的是召集一个跨学科的学者小组，讨论与了解该区域过去1,500年的干旱直接有关的信息的范围和质量。 研讨会将从文化、历史和科学证据及影响的角度审视干旱，组织者的目标是：-尽可能准确和精确地确定美洲极端干旱的年度、十年期和多年期历史。 在多个历史和古气候档案中评估这些干旱事件的记录。- 根据来自美洲的仪器前和定性（历史）文献资料，完善厄尔尼诺/南方涛动事件的年表。 根据高分辨率区域古气候记录，如树木年轮和冰芯记录，评价厄尔尼诺/南方涛动事件的仪器前记录。 - 研究厄尔尼诺/南方涛动强度和频率的记录，以评估厄尔尼诺/南方涛动系统的十年变化，并了解厄尔尼诺/南方涛动的低频变化如何影响美洲社会。 - 探讨如何利用高分辨率古气候记录更好地确定可能与厄尔尼诺/南方涛动变化有关的持续干旱和洪水时期。- 强调并讨论自欧洲人到来以来美洲历史时期可能产生的重大社会影响，这些影响可能与ENSO变化有合理的联系。