Collaborative Research: Connecting Spring Phenology with Lower Atmosphere Energy-mass Exchange, Phase Two

合作研究：将春季物候学与低层大气能量质量交换联系起来，第二阶段

• 批准号: 0085120
• 负责人: David Fitzjarrald
• 金额: $ 3.92万
• 依托单位: SUNY at Albany
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-03-15 至 2003-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0085120&HistoricalAwards=false
• 关键词: Collaborative; Research; Connecting; Spring; Phenology

This collaborative research will examine atmosphere-biosphere interactions, a key component of the Earth's physical system. Understanding this interaction is crucial to improve general circulation models, as well as to monitor variations in the carbon budget. The PIs will combine models and techniques produced in previously funded projects, with surface vegetation data sets, surface energy balance and carbon flux data, and new remote sensing products. They will further develop the physical interpretation of the first appearance of spring foliage commonly called the 'green wave' in the mid-latitudes. The results will allow the development of a time line that interconnects various atmospheric and biospheric changes associated with the green wave phenomena. Baseline 30-year normals and 20th century change assessments of the timing of the onset of spring across mid-latitude locations will serve as references for future research. The work is important because it will demonstrate the critical roles that surface phenological and meteorological data play in atmosphere-biosphere simulations and for global change monitoring, when used in concert with satellite-derived bioclimatological data.

这项合作研究将研究大气-生物圈的相互作用，这是地球物理系统的一个关键组成部分。了解这种相互作用对于改善循环模型以及监测碳预算的变化至关重要。这些项目将把以前资助的项目中产生的模型和技术与地表植被数据集、地表能量平衡和碳通量数据以及新的遥感产品结合起来。他们将进一步发展春季树叶首次出现的物理解释，通常在中纬度地区被称为“绿波”。这些结果将允许制定一条时间线，将与绿波现象相关的各种大气和生物圈变化相互联系起来。基线30年正常值和20世纪中纬度地区春季开始时间的变化评估将作为未来研究的参考。这项工作很重要，因为它将证明地表物候和气象数据在大气-生物圈模拟和全球变化监测中发挥的关键作用，当与卫星衍生的生物气候学数据协同使用时。