Travel Grant: Workshop on Impacts of Unusual Weather Events and Climate Anomalies on a Tropical Rainforest

世界各地的热带雨林在调节区域和全球气候系统方面发挥着重要作用。亚马逊雨林是全球陆地上最大的温室气体汇，在该地区形成的大规模雷暴复合体输送了影响全球循环的水分和能量。由于这些因素，重要的是要了解雨林是如何变化的，以应对更温暖的条件和极端天气事件。这项旅行奖为美国科学家提供资金，让他们参加一个会议，与地区科学家就研究项目的现状和下一步进行合作，这些研究项目旨在更好地了解气候对亚马逊雨林的影响以及随后的全球影响。出席会议的将包括该地区的原居民，他们将分享他们观察和预测天气和气候变化的传统知识。来自不同背景的早期职业科学家将在组织研讨会和确定研讨会优先事项方面发挥领导作用。亚马逊雨林正在经历前所未有的变化，以应对极端气候变化特征，如加速变暖、长期干旱和生物质燃烧。美国/巴西合作研讨会的目标是总结科学状况，确定未来的研究主题和方法，并在美国和巴西科学家之间建立伙伴关系。研讨会将围绕以下主题进行计划：·总结过去50年亚马逊地区发生的异常天气事件和极端气候异常，以及预计到2050年的气候变化。·研究气候变化和土地利用变化最近对改变亚马逊盆地水循环的影响程度。·讨论未来的实地和数值模拟研究，以开发统一的方法来确定亚马逊地区不同地形和所有相关大气稳定条件下的净生态系统交换。·为现场观测和卫星观测确定新出现的数据同化方法，以生成该地区改进的分析场，并确定最合适的人工智能。这一奖项反映了NSF的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。

Tropical forests around the world play a significant role in the regulation of regional and global climate systems. The Amazon rainforest is the greatest land-based global sink of greenhouse gases and the massive thunderstorm complexes that develop over the region transport moisture and energy that affect global circulation. Due to these factors, it is important to understand how the rainforest is changing in response to warmer conditions and extreme weather events. This travel award provides funding for US scientists to attend a meeting to collaborate with regional scientists on the current state and next steps for research projects aimed at better understanding the impact of climate on the Amazon rainforest and the subsequent global impacts. Included in the meeting will be Indigenous residents of the region who will share their traditional knowledge of observing and anticipating changes in weather and climate. Early career scientists from diverse backgrounds will assume leadership roles in organizing and prioritizing the workshop deliberations.The Amazon rainforest is experiencing unprecedented transformations in response to extreme climate change features such as accelerated warming, prolonged droughts, and biomass burning. The goals of the collaborative US/Brazil workshop are to summarize the state of the science, identify future research topics and methods, and forge partnerships between US and Brazilian scientists. The workshop will be planned around the following session topics:• Summarizing the occurrences of unusual weather events and extreme climate anomalies in the Amazon during the last 50 years and projected climate through 2050.• Examining the extent that climate change and land use shifts have recently contributed to modifying the water cycling in the Amazon Basin.• Discussing future field and numerical modeling studies to develop unified approaches to determine net ecosystem exchange for Amazonian regions with variable topography and for all relevant atmospheric stability conditions.• Identifying the emerging data assimilation methods for in-situ and satellite observations to generate improved analysis fields over the region and identifying the most suitable AI techniques to process large amounts of data related to the condition of the rainforest and its responses to climate-related events.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.