Carbon Dioxide and Water Flux Responses to Extreme Weather and Climate Anomalies: A Fluxnet Synthesis

二氧化碳和水通量对极端天气和气候异常的响应：通量网综合

• 批准号: 0628641
• 负责人: Christopher Williams
• 金额: $ 53.94万
• 依托单位: University of Maryland Baltimore County
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-08-01 至 2009-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0628641&HistoricalAwards=false
• 关键词: Carbon; Dioxide; Water; Flux; Responses

In this project researchers will perform a synthesis motivated by findings at individual flux tower sites that extreme weather and climate events (e.g., droughts, floods, hurricanes, and ice-storms) lead to pronounced and protracted anomalies in key components of the measured local carbon and water budgets. The PIs will assess the degree of commonality across flux tower sites in the response of the ecosystem to extreme events, derive a coherent description of these responses, and use remote sensing data to extrapolate spatially coherent and persistent impacts on ecosystems, specifically on vegetation, that subsequently may impact carbon and water balances and climate trajectories on a larger spatial scale. The PIs will also assess the ability of land surface models spanning a wide range of complexity to simulate the observed response of terrestrial state variables and fluxes to extreme events when driven by observed meteorology. The project is composed entirely of a team of early-career scientists.This work is supported under the NSF Carbon and Water in the Earth System solicitation, an interdisciplinary funding opportunity from the Directorate of Geosciences.

在这个项目中，研究人员将进行一个综合，其动机是在各个通量塔站点发现极端天气和气候事件（例如，干旱、洪水、飓风和冰暴）导致测量的当地碳和水预算的关键组成部分出现明显和长期的异常。 这些方案执行机构将评估通量塔站点在生态系统对极端事件的反应方面的共性程度，得出对这些反应的连贯描述，并利用遥感数据推断对生态系统，特别是对植被的空间连贯和持续影响，这些影响随后可能在更大的空间尺度上影响碳和水平衡以及气候轨迹。 PI还将评估陆地表面模型的能力，这些模型涵盖各种复杂性，以模拟观测到的气象学驱动下的陆地状态变量和通量对极端事件的观测响应。 该项目完全由一个早期职业科学家团队组成。这项工作得到了NSF地球系统中碳和水征集的支持，这是地球科学理事会的跨学科资助机会。