Collaborative Research: A Continuous 60,000 Year Sediment Record Documenting Abrupt to Precession-Scale Climate Change and Ecosystem Response at Fish Lake UT, Upper CO River Basin
合作研究: 60,000 年的连续沉积物记录记录了科罗拉多州上游流域鱼湖 UT 的突然进动规模的气候变化和生态系统响应
基本信息
- 批准号:2103074
- 负责人:
- 金额:$ 43.74万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2021
- 资助国家:美国
- 起止时间:2021-09-01 至 2024-08-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Over the last several decades increased drought severity and wildfire intensity around the globe has drawn attention to a need for an improved understanding of how climate change over a human lifetime impacts people, ecosystems, and water resources. Rapid population growth in the arid western US combined with pervasive drought, temperature stress on forests, insect outbreaks, and unprecedented wildfires has negatively impacted people and the economy and focused attention on the need to improve our understanding of the controls and long-term consequences of increased climate stress on these valuable and unique ecosystems. This interdisciplinary project will place the 21st century drought and extreme fire seasons in western North America into a longer-term context as a means to identify likely future scenarios for climate change and ecosystem response. This research will use a long and continuous sediment lake record collected from a headwater lake in the upper Colorado River Basin to investigate past variations in precipitation and temperature, and the impacts these changes had on vegetation, wildfire, forest disturbance, and glaciation with special attention paid to periods of rapid climate change that has happened in the past over timescales relevant to people. This is possible because of the high accumulation rate of Fish Lake sediments of about 18.5 meters over the last 60,000 years producing a 60 foot high section of mud containing things like pollen, charcoal, bug parts, fish bones, and other fossils for researchers to study in addition to the sediment itself and the molecular fossils it preserves. The proposed work includes X-ray Fluorescence (XRF) and CT core scanning to identify abrupt sediment boundaries and characterize the sediment profiles at the highest possible resolution. Changes in precipitation and evaporation will be investigated by water isotope tracers, including leaf wax delta-2H (long and short chain) and chironomid delta-18O. Molecular fossils such as branched glycerol dialkyl glycerol tetraethers (brGDGTs) will be used as way to estimate past summer temperatures through time. Landscape and aquatic ecosystem responses will be studies by using pollen, charcoal, polycyclic aromatic hydrocarbons (PAHs), biogenic silica, and organic carbon, nitrogen and stable isotopes. Watershed erosion and glacial activity of the Fish Lake Plateau will be investigated in new detail with scanning XRF, grainsize, organic matter, biogenic silica, and bulk density. Successful dating of an 11-m long core recovered in 2014 has been demonstrated by radiometric methods, including 210Pb and AMS 14C of terrestrial macrofossils and charcoal, by tephrochronology, and by paleomagnetic measurements.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.
在过去几十年里,地球仪各地干旱和野火强度的增加引起了人们的注意,需要更好地了解气候变化在人类一生中如何影响人类、生态系统和水资源。美国西部干旱地区人口的快速增长,加上普遍的干旱、森林的温度压力、昆虫爆发和前所未有的野火,对人类和经济产生了负面影响,并将注意力集中在需要提高我们对这些宝贵而独特的生态系统的控制和气候压力增加的长期后果的理解上。这一跨学科项目将把北美西部21世纪世纪的干旱和极端火灾季节放在一个较长期的背景下,作为确定气候变化和生态系统反应的未来可能情景的一种手段。这项研究将使用从上游科罗拉多河流域的一个源头湖泊收集的长期和连续的沉积物湖泊记录来调查过去的降水和温度变化,以及这些变化对植被,野火,森林干扰和冰川的影响,特别注意过去发生的与人类相关的时间尺度上的快速气候变化时期。这是可能的,因为在过去的6万年里,鱼湖约18.5米的沉积物的高积累率产生了一个60英尺高的泥段,除了沉积物本身和它保存的分子化石外,还含有花粉,木炭,昆虫部分,鱼骨和其他化石供研究人员研究。拟议的工作包括X射线荧光和CT岩心扫描,以确定突然的沉积物边界,并以尽可能高的分辨率确定沉积物剖面的特征。降水和蒸发的变化将通过水同位素示踪剂进行研究,包括叶蜡δ-2H(长链和短链)和摇蚊δ-18O。分子化石,如支链甘油二烷基甘油四醚(brGDGT)将被用作估计过去夏季温度的方法。将利用花粉、木炭、多环芳烃(PAHs)、生物硅、有机碳、氮和稳定同位素研究景观和水生生态系统的响应。流域侵蚀和冰川活动的鱼湖高原将进行调查,在新的详细扫描XRF,粒度,有机物,生物硅,和体积密度。2014年回收的11米长岩心的成功测年已通过放射性方法(包括陆地宏体化石和木炭的210 Pb和AMS 14 C)、火山灰年代学和古地磁测量得到证实。该奖项反映了NSF的法定使命,并通过使用基金会的智力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(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)
数据更新时间:{{ journalArticles.updateTime }}
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
数据更新时间:{{ journalArticles.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ monograph.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ sciAawards.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ conferencePapers.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ patent.updateTime }}
Mark Abbott其他文献
What Would the Beloved Community Look Like? An Examination of Mitigation Strategies by Design
心爱的社区会是什么样子?
- DOI:
10.1007/978-3-319-72956-5_5 - 发表时间:
2018 - 期刊:
- 影响因子:0
- 作者:
Catalina Freixas;Mark Abbott - 通讯作者:
Mark Abbott
Climate and anthropogenic controls on the carbon cycle of Xingyun Lake, China
星云湖碳循环的气候和人为控制
- DOI:
10.1016/j.palaeo.2018.04.012 - 发表时间:
2018-07 - 期刊:
- 影响因子:0
- 作者:
Aubrey Hillman;Mark Abbott;JunQing Yu - 通讯作者:
JunQing Yu
What Have We Wrought? An Explication of the Consequences of Segregation
我们做了什么?
- DOI:
10.1007/978-3-319-72956-5_3 - 发表时间:
2018 - 期刊:
- 影响因子:0
- 作者:
Catalina Freixas;Mark Abbott - 通讯作者:
Mark Abbott
The high burden of dengue and chikungunya in southern coastal Ecuador: Epidemiology, clinical presentation, and phylogenetics from a prospective study in Machala in 2014 and 2015
厄瓜多尔南部沿海登革热和基孔肯雅热的高负担:2014 年和 2015 年在马查拉进行的一项前瞻性研究的流行病学、临床表现和系统发育学
- DOI:
- 发表时间:
2017 - 期刊:
- 影响因子:0
- 作者:
Anna M. Stewart;A. Kenneson;Christine A. King;Mark Abbott;Arturo;Barbachano;Efraín Beltrán;M. Borbor;Cárdenas;Cinthya Cueva;J. Finkelstein;C. Lupone;R. Jarman;I. Berry;S. Mehta;Mark E. Polhemus;Mercy Silva;Sadie J Ryan;T. Endy - 通讯作者:
T. Endy
The isotopic response of Lake Chenghai, SW China, to hydrologic modification from human activity
中国西南澄海湖对人类活动水文改变的同位素响应
- DOI:
10.1177/0959683615622553 - 发表时间:
2016-01 - 期刊:
- 影响因子:0
- 作者:
Aubrey Hillman;Mark Abbott;JunQing Yu - 通讯作者:
JunQing Yu
Mark Abbott的其他文献
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
{{ truncateString('Mark Abbott', 18)}}的其他基金
Collaborative Research: A 50,000-year continuous record of the Indian Summer Monsoon from Loktak Lake, NE India
合作研究:印度东北部洛克塔克湖 50,000 年连续记录的印度夏季季风
- 批准号:
2303254 - 财政年份:2023
- 资助金额:
$ 43.74万 - 项目类别:
Standard Grant
Collaborative Research: RUI: Development of a 700,000 Year Record of Tropical Precipitation, Evaporation, and Temperature from Lake Junin Sediments and Regional Speleothems
合作研究:RUI:根据胡宁湖沉积物和区域洞穴形成 70 万年热带降水、蒸发和温度记录
- 批准号:
2103082 - 财政年份:2021
- 资助金额:
$ 43.74万 - 项目类别:
Standard Grant
EAGER: Reconstructing the Seismic History of the Teton Fault Using Lake Sediments at Grand Teton National Park, WY
EAGER:利用怀俄明州大提顿国家公园的湖泊沉积物重建提顿断层的地震历史
- 批准号:
1546677 - 财政年份:2015
- 资助金额:
$ 43.74万 - 项目类别:
Standard Grant
P2C2: Collaborative Research: Quantitative Reconstruction of Past Drought Patterns in Western North America Using Lakes, Stable Isotopes, and Modeling
P2C2:协作研究:利用湖泊、稳定同位素和建模定量重建北美西部过去的干旱模式
- 批准号:
1446283 - 财政年份:2015
- 资助金额:
$ 43.74万 - 项目类别:
Continuing Grant
Collaborative Research: Deep Drilling of Lake Junin, Peru: Continuous Tropical Records of Glaciation, Climate Change and Magnetic Field Variations Spanning the Late Quaternary
合作研究:秘鲁胡宁湖深钻:晚第四纪冰川作用、气候变化和磁场变化的连续热带记录
- 批准号:
1404113 - 财政年份:2014
- 资助金额:
$ 43.74万 - 项目类别:
Continuing Grant
EAGER: A Comparison of Lacustrine Carbonate d18O and Organic Matter dD from Drought Sensitive Lakes in the Western United States
EAGER:美国西部干旱敏感湖泊中湖相碳酸盐 d18O 和有机物 dD 的比较
- 批准号:
1346947 - 财政年份:2013
- 资助金额:
$ 43.74万 - 项目类别:
Standard Grant
Collaborative Research: Towards an understanding of the Holocene paleomagnetic record through new data (Hawaii/North American) and time series/spherical harmonic model comparisons
合作研究:通过新数据(夏威夷/北美)和时间序列/球谐模型比较来了解全新世古地磁记录
- 批准号:
1215661 - 财政年份:2012
- 资助金额:
$ 43.74万 - 项目类别:
Standard Grant
EAGER: Documenting the Spatial Pattern of Drought in Western North America During the Holocene
EAGER:记录全新世期间北美西部干旱的空间模式
- 批准号:
1252874 - 财政年份:2012
- 资助金额:
$ 43.74万 - 项目类别:
Standard Grant
Collaborative research: Nonlinearities in the Arctic climate system during the Holocene
合作研究:全新世北极气候系统的非线性
- 批准号:
0908200 - 财政年份:2010
- 资助金额:
$ 43.74万 - 项目类别:
Standard Grant
Collaborative Research: Spatial and Temporal Patterns of Drought in Western North America during the Holocene
合作研究:全新世北美西部干旱的时空模式
- 批准号:
0902200 - 财政年份:2009
- 资助金额:
$ 43.74万 - 项目类别:
Standard Grant
相似国自然基金
Research on Quantum Field Theory without a Lagrangian Description
- 批准号:24ZR1403900
- 批准年份:2024
- 资助金额:0.0 万元
- 项目类别:省市级项目
Cell Research
- 批准号:31224802
- 批准年份:2012
- 资助金额:24.0 万元
- 项目类别:专项基金项目
Cell Research
- 批准号:31024804
- 批准年份:2010
- 资助金额:24.0 万元
- 项目类别:专项基金项目
Cell Research (细胞研究)
- 批准号:30824808
- 批准年份:2008
- 资助金额:24.0 万元
- 项目类别:专项基金项目
Research on the Rapid Growth Mechanism of KDP Crystal
- 批准号:10774081
- 批准年份:2007
- 资助金额:45.0 万元
- 项目类别:面上项目
相似海外基金
Collaborative Research: Scalable Nanomanufacturing of Perovskite-Analogue Nanocrystals via Continuous Flow Reactors
合作研究:通过连续流反应器进行钙钛矿类似物纳米晶体的可扩展纳米制造
- 批准号:
2315997 - 财政年份:2024
- 资助金额:
$ 43.74万 - 项目类别:
Standard Grant
Collaborative Research: Scalable Nanomanufacturing of Perovskite-Analogue Nanocrystals via Continuous Flow Reactors
合作研究:通过连续流反应器进行钙钛矿类似物纳米晶体的可扩展纳米制造
- 批准号:
2315996 - 财政年份:2024
- 资助金额:
$ 43.74万 - 项目类别:
Standard Grant
Collaborative Research: IIBR Instrumentation: A continuous metabolite sensor for lab and field studies
合作研究:IIBR Instrumentation:用于实验室和现场研究的连续代谢物传感器
- 批准号:
2324717 - 财政年份:2023
- 资助金额:
$ 43.74万 - 项目类别:
Continuing Grant
Collaborative Research: CCSS: Continuous Facial Sensing and 3D Reconstruction via Single-ear Wearable Biosensors
合作研究:CCSS:通过单耳可穿戴生物传感器进行连续面部传感和 3D 重建
- 批准号:
2401415 - 财政年份:2023
- 资助金额:
$ 43.74万 - 项目类别:
Standard Grant
Collaborative Research: ATD: Fast Algorithms and Novel Continuous-depth Graph Neural Networks for Threat Detection
合作研究:ATD:用于威胁检测的快速算法和新颖的连续深度图神经网络
- 批准号:
2219956 - 财政年份:2023
- 资助金额:
$ 43.74万 - 项目类别:
Standard Grant
Collaborative Research: SaTC: CORE: Small: Self-Driving Continuous Fuzzing
协作研究:SaTC:核心:小型:自驱动连续模糊测试
- 批准号:
2247880 - 财政年份:2023
- 资助金额:
$ 43.74万 - 项目类别:
Continuing Grant
Collaborative Research: Building A Cybersecurity Mindset Through Continuous Cross-module Learning
协作研究:通过持续的跨模块学习建立网络安全心态
- 批准号:
2315489 - 财政年份:2023
- 资助金额:
$ 43.74万 - 项目类别:
Standard Grant
Collaborative Research: Building A Cybersecurity Mindset Through Continuous Cross-module Learning
协作研究:通过持续的跨模块学习建立网络安全心态
- 批准号:
2315490 - 财政年份:2023
- 资助金额:
$ 43.74万 - 项目类别:
Standard Grant
Collaborative Research: ATD: Fast Algorithms and Novel Continuous-depth Graph Neural Networks for Threat Detection
合作研究:ATD:用于威胁检测的快速算法和新颖的连续深度图神经网络
- 批准号:
2219904 - 财政年份:2023
- 资助金额:
$ 43.74万 - 项目类别:
Standard Grant
Collaborative Research: SaTC: CORE: Medium: Securing Continuous Integration Workflows
协作研究:SaTC:核心:中:确保持续集成工作流程的安全
- 批准号:
2247686 - 财政年份:2023
- 资助金额:
$ 43.74万 - 项目类别:
Continuing Grant