RII Track-4:@NASA: Methane Dynamics Described Through the Fusion of Site and Satellite Data in Bottomland Hardwood Forested and Non-forested Wetlands

这项研究基础设施改善轨道4 EPSCoR研究人员（RII轨道4）项目将为默里州立大学的一名副教授提供奖学金，并为一名研究生提供培训。这项工作将与NASA艾姆斯研究中心的研究人员合作进行。通过该奖学金，该项目旨在研究气候变化对湿地生态系统温室气体排放的影响。该奖学金的主要目标是通过测量尚未得到充分研究的矿质土壤森林湿地的温室气体通量，更好地了解湿地生态系统内温室气体的动态。该项目的目标是利用卫星改进对湿地温室气体排放的探测，减少更大空间范围内温室气体通量的不确定性，并验证基于卫星的温室气体排放数据。项目设计允许对所有主要库（即土壤、茎、膝）的温室气体通量进行量化，并对土壤-植被相互作用进行调查。该奖学金将加强首席研究员吸引不同学生（女性、第一代学生和少数族裔学生）进入该领域的能力，并为他们提供发展研究技能的机会，从而使他们在未来的职业生涯中取得成功。此外，该奖学金将对司法管辖区产生更广泛的影响。森林生态系统碳通量动态对全球气候有着巨大的影响。在这个项目中，PI将通过建立一个新的站点来测量尚未得到充分研究的矿质土壤森林湿地的温室气体通量，从而扩大对碳动力学的认识。总体目标是：(1)提高对矿物土壤湿地温室气体通量控制的认识；(2)更好地了解景观位置和森林组成对陆地生态系统与大气之间温室气体通量的影响。所提出的方法旨在利用经验测量来确定这些系统中温室气体通量的热点和热点时刻，并改进区域温室气体预测。将实地活动与遥感活动联系起来的战略旨在为绘制矿物土壤湿地CH4通量控制情况提供新的见解。NASA艾姆斯研究中心（ARC）的设施对于完成研究任务所需的卫星图像的处理和分析至关重要。此外，东道主合作者将提供利用遥感、通量塔和实地观测作为输入变量的甲烷建模经验。PI将在与水生系统卫星和机载遥感专门知识以及相关的水生实地观测有关的研究方面获得建议，以协助完成拟议的任务。从这项研究中获得的信息将提供有关树干和秃柏树膝关节温室气体排放驱动因素的见解。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

This Research Infrastructure Improvement Track-4 EPSCoR Research Fellows (RII Track-4) project will provide a fellowship to an Associate Professor and training for a graduate student at Murray State University. This work will be conducted in collaboration with researchers at NASA Ames Research Center. Through the fellowship, the PI aims to study the effects of changing climate on greenhouse gas (GHG) emissions in wetland ecosystems. The main goal of this fellowship is to better understand the dynamics of GHGs within wetland ecosystems by measuring GHG fluxes in mineral soil forested wetlands that are not well studied. The project will aim to improve the detection of GHG emissions from wetlands using satellites, reduce uncertainties in the GHG fluxes across larger spatial extents, and validate satellite-based GHG emission data. The project design allows for the quantification of GHG fluxes from all major pools (i.e., soils, stems, knees), and for the investigation of soil-vegetation interactions. The fellowship will strengthen the principal investigator’s ability to attract diverse students (women, first-generation, and minority students) to the field and provide them with opportunities to develop the research skills that can lead them to successful future careers. In addition, the fellowship will have a broader impact on the jurisdiction. Forested ecosystem carbon flux dynamics have a tremendous impact on global climate. In this project, the PI will extend knowledge of carbon dynamics by establishing a new site for measuring GHGs fluxes in mineral soil forested wetlands that are not well studied. The overarching objectives are to (1) improve understanding of the controls on GHG fluxes in mineral soil wetlands, and (2) to better understand the effects of landscape position and forest composition on the GHG fluxes between terrestrial ecosystems and the atmosphere. The proposed methodology is designed to use both empirical measurements to identify hot spots and hot moments of GHG fluxes in these systems and improve regional GHG predictions. The strategy of linking the field campaign with remote sensing activities is aimed at providing new insights into the mapping of the controls of mineral soil wetland CH4 fluxes. NASA Ames Research Center (ARC) facilities will be essential for the processing and analysis of the satellite imagery needed to accomplish the task of fellowship. Furthermore, host collaborators will offer experience in methane modeling using remote sensing, flux tower, and field observations as input variables. The PI will be advised in the research associated with aquatic system satellite and airborne remote sensing expertise as well as associated aligned aquatic field observations to assist in accomplishing the proposed tasks. The information gained from this fellowship will provide insights about drivers of tree stem and bald cypress knees GHG emissions.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.