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: 0085224
• 负责人: Mark Schwartz
• 金额: $ 16万
• 依托单位: University of Wisconsin-Milwaukee
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-03-15 至 2004-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0085224&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关键组成部分。了解这种相互作用对于改进大气环流模型以及监测碳收支的变化至关重要。这些项目参与者将把以前资助的项目中产生的联合收割机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，通常称为中纬度地区的"绿色波"。研究结果将有助于制定一个时间表，将与绿色波现象有关的各种大气和生物圈变化联系起来。基线30年的正常和20世纪的变化评估的时间开始的春天在中纬度地区将作为未来研究的参考。这项工作之所以重要，是因为它将表明地面物候和气象数据在与卫星获得的生物气候数据配合使用时在大气-生物圈模拟和全球变化监测方面所发挥的关键作用。