AGU Chapman Conference on The Width of the Tropics: Climate Variations and Their Impact; Santa Fe, New Mexico; July 26-31, 2015

AGU 查普曼热带宽度会议：气候变化及其影响；

• 批准号: 1521601
• 负责人: Pranoti Asher
• 金额: $ 2万
• 依托单位: American Geophysical Union
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-05-01 至 2016-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1521601&HistoricalAwards=false
• 关键词: AGU; Chapman; Conference; Width; Tropics

The past decade has witnessed increasing scientific focus on detailed aspects of tropical climate, at and above the Earth's surface, and on the location of the boundary between the tropical and extratropical zones. A growing body of literature addresses the possibility of changes in the position and strength of the Hadley cell, jet streams, and zonal mean atmospheric circulation. These changes could manifest as changes in surface climate, particularly precipitation, and have important societal and ecological consequences. A number of studies have identified poleward movement in the boundary between tropical and extratropical zones; this phenomenon has been referred to as "tropical widening" or "expansion of the tropical belt."This Chapman Conference will bring together scientists from a wide range of backgrounds to explore and summarize the state of the science and identify future research directions relevant for the problem of tropical widening. A particular emphasis will be on the multi-disciplinary nature of the problem with the goal of enabling cross-fertilization among the wide range of climate science subtopics represented by the participants of the conference. To facilitate this, the following four session topics are planned: What determines the width of the tropical belt? 2. How and why has the tropical width changed in the past? 3. How and why might the tropical width change in the future? 4. What are the impacts for the oceans, cryosphere, hydrologic cycle, human society, and ecosystems?The workshop will be held July 26-31 2015 at Santa Fe, New Mexico. NSF funds will go towards support of approximately 15 graduate students and early career scientists.

过去十年，科学界越来越关注地球表面及以上热带气候的细节，以及热带和温带地区边界的位置。越来越多的文献探讨了哈德来环流、急流和纬向平均大气环流的位置和强度发生变化的可能性。这些变化可能表现为地表气候的变化，特别是降水的变化，并产生重要的社会和生态后果。许多研究已经确定热带和温带地区之间的边界存在向极地运动；这种现象被称为“热带加宽”或“热带带扩张”。本次查普曼会议将汇集来自不同背景的科学家，探索和总结科学现状，并确定与热带相关的未来研究方向热带扩张问题。将特别强调该问题的多学科性质，目标是使会议参与者所代表的各种气候科学子主题之间能够相互促进。为了促进这一点，计划了以下四个会议主题：什么决定了热带带的宽度？ 2. 过去热带宽度如何以及为何发生变化？ 3. 未来热带宽度如何以及为何会发生变化？ 4. 对海洋、冰冻圈、水文循环、人类社会和生态系统有何影响？研讨会将于2015年7月26日至31日在新墨西哥州圣达菲举行。 NSF 资金将用于支持大约 15 名研究生和早期职业科学家。