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霍博尼尔大学尤卡坦大学现场站举行的会议，题为“美洲多个时间尺度气候事件的年表”。 研讨会的目的是召集跨学科的学者小组，讨论与过去1500年中对该地区干旱的理解直接相关的信息的程度和质量。 研讨会将从文化，历史和科学证据和影响的角度检查干旱。组织者的目标是： - 在美洲定义了极端年度，年代，年代和多年多年干旱的历史，其在约会中的准确性和准确性最高。 在多个历史和古气候档案中评估这些干旱事件的记录。 - 完善基于美洲前和定性（历史）文献信息的El Nino/Southern振荡（ENSO）事件的年表。 在高分辨率的区域古气候记录的背景下，评估ENSO事件的乐观前记录，例如树环和冰芯。 - 检查ENSO强度和频率的记录，以评估ENSO系统的衰落变化，并了解ENSO的低频变化如何影响美洲的社会。 - 探索使用高分辨率古气候记录以更好地定义持续干旱和可能与ENSO变异性有关的洪水时期的手段。 - 突出并讨论在美洲历史时期可能会产生的重大社会影响，因为欧洲到来可能与ENSO变异性有合理的联系。