A Dendroclimatic Study of Drought in the Northern Great Plains

北部大平原干旱的树木气候研究

• 批准号: 9017137
• 负责人: Arthur DeGaetano
• 金额: $ 5.97万
• 依托单位: South Dakota School of Mines and Technology
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-06-01 至 1996-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9017137&HistoricalAwards=false
• 关键词: Dendroclimatic; Study; Drought; Northern; Great

Tree-ring chronologies provide one of the most important records of past climate. These records provide annual resolution and unambiguous records of terrestrial climatological change. This research project will reconstruct the magnitude and frequency of drought in the northern Great Plains of North America for last three-hundred year interval of earth history. The geographic location for this study has been neglected in previous paloeclimate research. Since it is an important agricultural region for the US, understanding the history of drought in this region is important for understanding future climate changes and their possible effect on food supplies.

树木年轮年表提供了过去气候最重要的记录之一。这些记录提供了陆地气候变化的年度分辨率和明确记录。这项研究项目将重建北美大平原北部过去三百年地球历史间隔的干旱程度和频率。在以往的古陆架研究中，这项研究的地理位置被忽略了。由于它是美国重要的农业地区，了解该地区的干旱历史对于了解未来的气候变化及其可能对粮食供应的影响非常重要。