Collaborative Research: Sustaining and amplifying the ITEX AON through automation and increased interdisciplinarity of observations.
合作研究:通过自动化和增加观测的跨学科性来维持和扩大 ITEX AON。
基本信息
- 批准号:0856728
- 负责人:
- 金额:$ 59.19万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2009
- 资助国家:美国
- 起止时间:2009-08-15 至 2014-07-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5). The goal of this project is to maintain the existing ITEX AON and increase the applicability of the data collected to the greater scientific community. The International Tundra Experiment (ITEX) network has collected data on phenology, plant growth, community composition and ecosystem properties as part of a greater effort to study environmental arctic change. The network, started in early 1990?s, has played a key role in advancing knowledge related to the likely impacts of a warmer arctic through the use of experimentally warmed and un-manipulated plots (i.e., the controls) across a range of sites and ecosystems that span the major vegetation types of the Arctic. While of great value, most ITEX measurements are labor intensive and time consuming, which limit the frequency and spatial extent of sampling. Recent advances in sensor technology hold the promise to allow sampling of surrogates of these manual measurements rapidly and over larger areas. This work will continue the ITEX AON observations and initiate a suite of related, non-intrusive measurements using robotic sensor platforms (networked infomechanical systems, NIMS). These new measurements will enable scaling of measurements to the regional level by linking to existing 1 km2 sample grids and satellite imagery. These data are urgently needed to improve our capacity to monitor the impacts of changing tundra vegetation on the arctic system. This work should improve our understanding of the exchange of carbon and water across the land atmosphere interface and provide information on forage quality for herbivores.
该奖项是根据2009年美国复苏和再投资法案(公法111-5)资助的。该项目的目标是维护现有的ITEX AON,并提高所收集数据对更大科学界的适用性。国际苔原实验网络收集了关于物候、植物生长、群落组成和生态系统特性的数据,作为研究北极环境变化的更大努力的一部分。网络,始于1990年初。s,在通过使用实验变暖和未操纵的地块(即,在北极的主要植被类型的一系列地点和生态系统中,虽然有很大的价值,但大多数ITEX测量都是劳动密集型和耗时的,这限制了采样的频率和空间范围。传感器技术的最新进展有望允许在更大的区域内快速地对这些手动测量的替代物进行采样。这项工作将继续ITEX AON观测,并使用机器人传感器平台(网络信息机械系统,NIMS)启动一套相关的非侵入性测量。这些新的测量结果将通过与现有的1平方公里样本网格和卫星图像相联系,使测量结果能够扩大到区域一级。这些数据是迫切需要提高我们的能力,以监测不断变化的苔原植被对北极系统的影响。这项工作将提高我们对陆地大气界面碳和水交换的理解,并为食草动物提供有关饲料质量的信息。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Jeffrey Welker其他文献
From thaw till fall: Interacting hydrology, carbon cycle, and greenhouse gas dynamics in a subarctic stream-lake continuum
从解冻到秋季:亚北极河流-湖泊连续体中相互作用的水文学、碳循环和温室气体动态
- DOI:
10.1016/j.scitotenv.2024.177434 - 发表时间:
2024-12-20 - 期刊:
- 影响因子:8.000
- 作者:
Kaisa-Riikka Mustonen;Hannu Marttila;Kaisa Lehosmaa;Jack Chapman;Sari Juutinen;Iina Koivunen;Mika Korkiakoski;Annalea Lohila;Jeffrey Welker;Jussi Jyväsjärvi - 通讯作者:
Jussi Jyväsjärvi
Jeffrey Welker的其他文献
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{{ truncateString('Jeffrey Welker', 18)}}的其他基金
RAPID: Fingerprinting new water-carbon interactions in the Arctic: Isotopic measurements through the Northwest Passage and in Baffin Bay
RAPID:对北极新的水-碳相互作用进行指纹识别:通过西北航道和巴芬湾的同位素测量
- 批准号:
2133156 - 财政年份:2021
- 资助金额:
$ 59.19万 - 项目类别:
Standard Grant
Arctic water isotope cycle processes and patterns in the Central Arctic during an International Arctic Drift Expedition (MOSAiC)
国际北极漂流考察 (MOSAiC) 期间北极中部的北极水同位素循环过程和模式
- 批准号:
1852614 - 财政年份:2019
- 资助金额:
$ 59.19万 - 项目类别:
Standard Grant
Collaborative Research: Using the ITEX-AON network to document and understand terrestrial ecosystem change in the Arctic
合作研究:利用 ITEX-AON 网络记录和了解北极陆地生态系统的变化
- 批准号:
1836873 - 财政年份:2019
- 资助金额:
$ 59.19万 - 项目类别:
Continuing Grant
Collaborative Research: Nutritional Landscapes of Arctic Caribou: Observations, Experiments, and Models Provide Process-Level Understanding of Forage Traits and Trajectories
合作研究:北极驯鹿的营养景观:观察、实验和模型提供了对饲料特性和轨迹的过程级理解
- 批准号:
1604249 - 财政年份:2017
- 资助金额:
$ 59.19万 - 项目类别:
Standard Grant
Collaborative Research: EAGER: Quantifying the Sources of Arctic Tundra-Respired CO2 Year-Round via Continuous in Situ Sampling of 14CO2
合作研究:EAGER:通过 14CO2 连续原位采样量化全年北极苔原呼吸二氧化碳的来源
- 批准号:
1650084 - 财政年份:2016
- 资助金额:
$ 59.19万 - 项目类别:
Standard Grant
Arctic Observing Networks: Collaborative Research: ITEX AON - understanding the relationships between vegetation change, plant phenology, and ecosystem function in a warming Arctic
北极观测网络:合作研究:ITEX AON - 了解北极变暖中植被变化、植物物候和生态系统功能之间的关系
- 批准号:
1504141 - 财政年份:2016
- 资助金额:
$ 59.19万 - 项目类别:
Standard Grant
Collaborative Research: Asynchrony in the timing of goose-vegetation interactions: implications for biogeochemical cycling in wet sedge tundra
合作研究:鹅与植被相互作用的时间异步:对湿莎草苔原生物地球化学循环的影响
- 批准号:
1304879 - 财政年份:2014
- 资助金额:
$ 59.19万 - 项目类别:
Standard Grant
Arctic Observing Networks: Collaborative Research: Sustaining and amplifying the ITEX AON through automation and increased interdisciplinarity of observations
北极观测网络:合作研究:通过自动化和增加观测的跨学科性来维持和扩大 ITEX AON
- 批准号:
1433063 - 财政年份:2014
- 资助金额:
$ 59.19万 - 项目类别:
Standard Grant
Collaborative Research: Quantifying changes in the Arctic hydrological cycle at the landscape scale using advances in water vapor isotope (d18O and dD) techniques and aircraft
合作研究:利用水蒸气同位素(d18O和dD)技术和飞机的进步,在景观尺度上量化北极水文循环的变化
- 批准号:
1332268 - 财政年份:2013
- 资助金额:
$ 59.19万 - 项目类别:
Standard Grant
Collaborative Research: Quantifying changes in the Arctic hydrological cycle at the landscape scale using advances in water vapor isotope (18O & D) techniques and aircraft
合作研究:利用水蒸气同位素(18O)的进步,在景观尺度上量化北极水文循环的变化
- 批准号:
1203472 - 财政年份:2012
- 资助金额:
$ 59.19万 - 项目类别:
Standard Grant
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