COLLABORATIVE RESEARCH: Remote Characterization of Microbial Mats in Taylor Valley, Antarctica, through In Situ Sampling and Spectral Validation
合作研究:通过原位采样和光谱验证对南极洲泰勒谷微生物垫进行远程表征
基本信息
- 批准号:1744849
- 负责人:
- 金额:$ 8.21万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2018
- 资助国家:美国
- 起止时间:2018-08-15 至 2023-07-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Microbial mats are found throughout the McMurdo Dry Valleys where summer snowmelt provides liquid water that allows these mats to flourish. Researchers have long studied the environmental conditions microbial mats need to grow. Despite these efforts, it has been difficult to develop a broad picture of these unique ecosystems. Recent advances in satellite technology now provide researchers an exciting new tool to study these special Antarctic ecosystems from space using the unique spectral signatures associated with microbial mats. This new technology not only offers the promise that microbial mats can be mapped and studied from space, this research will also help protect these delicate environments from potentially harmful human impacts that can occur when studying them from the ground. This project will use satellite imagery and spectroscopic techniques to identify and map microbial mat communities and relate their properties and distributions to both field and lab-based measurements. This research provides an exciting new tool to help document and understand the distribution of a major component of the Antarctic ecosystem in the McMurdo Dry Valleys.The goal of this project is to establish quantitative relationships between spectral signatures derived from orbit and the physiological status and biogeochemical properties of microbial mat communities in Taylor Valley, Antarctica, as measured by field and laboratory analyses on collected samples. The goal wioll be met by (1) refining atmospheric correction techniques using in situ radiometric rectification to derive accurate surface spectra; (2) collecting multispectral orbital images concurrent with in situ sampling and spectral measurements in the field to ensure temporal comparability; (3) measuring sediment, water, and microbial mat samples for organic and inorganic carbon content, essential biogeochemical nutrients, and chlorophyll-a to determine relevant mat characteristics; and (4) quantitatively associating these laboratory-derived characteristics with field-derived and orbital spectral signatures and parameters. The result of this work will be a more robust quantitative link between the distribution of microbial mat communities and their biogeochemical properties to landscape-scale spectral signatures.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.
微生物席遍布麦克默多干谷,那里的夏季融雪提供了液态水,使微生物席得以繁衍生息。研究人员长期以来一直在研究微生物席生长所需的环境条件。尽管做出了这些努力,但很难对这些独特的生态系统有一个全面的了解。卫星技术的最新进展现在为研究人员提供了一个令人兴奋的新工具,利用与微生物垫相关的独特光谱特征,从太空研究这些特殊的南极生态系统。这项新技术不仅提供了从太空绘制和研究微生物垫的希望,这项研究还将有助于保护这些脆弱的环境免受从地面研究它们时可能发生的潜在有害人类影响。该项目将使用卫星图像和光谱技术来识别和绘制微生物群落,并将其特性和分布与现场和实验室测量相关联。这项研究提供了一个令人兴奋的新工具,以帮助记录和了解麦克默多干谷南极生态系统的主要组成部分的分布。该项目的目标是通过对收集到的样品进行实地和实验室分析,确定从轨道获得的光谱特征与南极洲泰勒谷微生物席群落的生理状况和生物地球化学特性之间的定量关系。该目标将通过以下方式实现:(1)改进大气校正技术,使用原位辐射校正来获得精确的表面光谱;(2)在现场采样和光谱测量的同时收集多光谱轨道图像,以确保时间可比性;(3)测量沉积物、水和微生物席样品的有机和无机碳含量、必需的生物地球化学养分和叶绿素-a,以确定相关席的特征;(4)定量地将这些实验室衍生的特征与场衍生和轨道光谱特征和参数联系起来。这项工作的结果将是在微生物群落的分布及其生物地球化学特性与景观尺度光谱特征之间建立更强大的定量联系。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。
项目成果
期刊论文数量(4)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Counting Carbon: Quantifying Biomass in the McMurdo Dry Valleys through Orbital & Field Observations
计算碳:通过轨道量化麦克默多干谷的生物量
- DOI:10.1080/01431161.2021.1981559
- 发表时间:2021
- 期刊:
- 影响因子:3.4
- 作者:Salvatore, Mark R.;Barrett, John E.;Borges, Schuyler R.;Power, Sarah N.;Stanish, Lee F.;Sokol, Eric R.;Gooseff, Michael N.
- 通讯作者:Gooseff, Michael N.
Remote characterization of photosynthetic communities in the Fryxell basin of Taylor Valley, Antarctica
南极洲泰勒谷弗里克塞尔盆地光合群落的远程表征
- DOI:10.1017/s0954102020000176
- 发表时间:2020
- 期刊:
- 影响因子:1.6
- 作者:Salvatore, Mark R.;Borges, Schuyler R.;Barrett, John E.;Sokol, Eric R.;Stanish, Lee F.;Power, Sarah N.;Morin, Paul
- 通讯作者:Morin, Paul
Estimating microbial mat biomass in the McMurdo Dry Valleys, Antarctica using satellite imagery and ground surveys
利用卫星图像和地面调查估算南极洲麦克默多干谷的微生物垫生物量
- DOI:10.1007/s00300-020-02742-y
- 发表时间:2020
- 期刊:
- 影响因子:1.7
- 作者:Power, Sarah N.;Salvatore, Mark R.;Sokol, Eric R.;Stanish, Lee F.;Barrett, J. E.
- 通讯作者:Barrett, J. E.
Evaluating Alternative Metacommunity Hypotheses for Diatoms in the McMurdo Dry Valleys Using Simulations and Remote Sensing Data
使用模拟和遥感数据评估麦克默多干谷硅藻的替代元群落假设
- DOI:10.3389/fevo.2020.521668
- 发表时间:2020
- 期刊:
- 影响因子:3
- 作者:Sokol, Eric R.;Barrett, J. E.;Kohler, Tyler J.;McKnight, Diane M.;Salvatore, Mark R.;Stanish, Lee F.
- 通讯作者:Stanish, Lee F.
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Eric Sokol其他文献
MP10-10 DOES THE DEGREE OF CYSTOCELE PREDICT DE-NOVO STRESS URINARY INCONTINENCE AFTER PROLAPSE REPAIR? FURTHER ANALYSIS OF THE CARE TRIAL
- DOI:
10.1016/j.juro.2016.02.2340 - 发表时间:
2016-04-01 - 期刊:
- 影响因子:
- 作者:
Michael Davenport;Eric Sokol;Christopher Elliott - 通讯作者:
Christopher Elliott
Eric Sokol的其他文献
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{{ truncateString('Eric Sokol', 18)}}的其他基金
Collaborative Research: Moving Beyond the Margins: Modeling Water Availability and Habitable Terrestrial Ecosystems in the Polar Desert of the McMurdo Dry Valleys
合作研究:超越边缘:麦克默多干谷极地沙漠的水资源可用性和宜居陆地生态系统建模
- 批准号:
2045880 - 财政年份:2021
- 资助金额:
$ 8.21万 - 项目类别:
Standard Grant
COLLABORATIVE RESEARCH: Temporal stability of riverine communities in dendritic networks at multiple spatial scales
合作研究:多个空间尺度的树突网络中河流群落的时间稳定性
- 批准号:
1655593 - 财政年份:2017
- 资助金额:
$ 8.21万 - 项目类别:
Standard Grant
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