RAPID: Abrupt, Coherent Increase in the Color of Arctic lakes of West Greenland: Investigating Contributing Factors

快速:西格陵兰岛北极湖泊颜色的突然、一致的增加:调查影响因素

基本信息

  • 批准号:
    2348144
  • 负责人:
  • 金额:
    $ 5万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    2023
  • 资助国家:
    美国
  • 起止时间:
    2023-11-01 至 2024-10-31
  • 项目状态:
    已结题

项目摘要

A simultaneous shift has occurred in lakes across West Greenland. At some point since August 2022, lakes that were “blue” or very clear for decades have rapidly and darkly turned brown. Unusually wet and cloudy conditions over the past year likely led to this change in lake color, but the factors contributing to this color change remain unclear. Preliminary data suggest that metal concentrations have increased by an order of magnitude in these lakes, and a similar change in water color has been observed recently in streams in the Brooks Range of Alaska, raising the question of whether this will become a pan-Arctic phenomenon, leading to widespread changes across Arctic freshwater systems. A key initial step to understanding this major change is to quantify what factors are contributing to this color change, and what their origin might be. This proposed work aims to contribute to the broader understanding of this phenomenon.The rapid, substantial change that we observed in these lakes presents yet another example of how changing climate threatens the ability of Arctic communities to ensure safe drinking water sources. We will analyze water and sediment samples from the drinking water source of Kangerlussuaq, Lake Ferguson, to analyze trace elements, including lead and arsenic, to assess whether these have changed as a consequence of the recently altered hydrology. This work aligns with priorities set forth in Greenland’s National Research Strategy by promoting international cooperation and communicating results in multiple ways to make it broadly accessible. The research will also be of benefit to other Arctic communities by identifying potential emerging threats to drinking water. This project will also provide support for a Ph.D. student and an early career scientist.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.
整个西格陵兰的湖泊也发生了同时的变化。自2022年8月以来的某个时候,几十年来一直是“蓝色”或非常清澈的湖泊迅速变成了深棕色。在过去的一年中,不寻常的潮湿和多云条件可能导致了湖泊颜色的变化,但导致这种颜色变化的因素仍然不清楚。初步数据表明,这些湖泊中的金属浓度增加了一个数量级,最近在阿拉斯加布鲁克斯山脉的溪流中也观察到了类似的水色变化,这引发了一个问题,即这是否会成为一种泛北极现象,导致整个北极淡水系统的广泛变化。了解这种主要变化的关键第一步是量化哪些因素导致了这种颜色变化,以及它们的起源可能是什么。我们在这些湖泊中观察到的快速而实质性的变化是另一个例子,说明气候变化如何威胁北极社区确保安全饮用水源的能力。我们将分析来自弗格森湖Kangerlussuaq饮用水源的水和沉积物样本,以分析微量元素,包括铅和砷,以评估这些元素是否因最近改变的水文而发生变化。这项工作与格陵兰国家研究战略中规定的优先事项保持一致,促进国际合作,并以多种方式传播研究成果,使其广泛传播。该研究还将通过确定对饮用水的潜在新威胁,使其他北极社区受益。该项目还将为博士学位提供支持。该奖项反映了NSF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

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Jasmine Saros其他文献

Glacially-fed lakes of West Greenland have elevated metal and nutrient concentrations and serve as regional repositories of these materials
西格陵兰冰川补给的湖泊金属和营养物质浓度升高,是这些物质的区域储存库。
  • DOI:
    10.1016/j.scitotenv.2025.178744
  • 发表时间:
    2025-03-01
  • 期刊:
  • 影响因子:
    8.000
  • 作者:
    Ansley Grider;Jasmine Saros;Robert Northington;Jacob Clement Yde
  • 通讯作者:
    Jacob Clement Yde

Jasmine Saros的其他文献

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{{ truncateString('Jasmine Saros', 18)}}的其他基金

Doctoral Dissertation Research: Another piece of the Arctic carbon puzzle: quantifying emissions from Arctic lakes in drier regions
博士论文研究:北极碳难题的另一部分:量化干旱地区北极湖泊的排放
  • 批准号:
    2113908
  • 财政年份:
    2021
  • 资助金额:
    $ 5万
  • 项目类别:
    Standard Grant
NRT-NNA: Systems Approaches to Understanding and Navigating the New Arctic (SAUNNA)
NRT-NNA:了解和导航新北极的系统方法(SAUNNA)
  • 批准号:
    2021713
  • 财政年份:
    2020
  • 资助金额:
    $ 5万
  • 项目类别:
    Standard Grant
Deciphering the ecology of key diatom taxa to understand climate-induced changes in West Greenland lakes
破译关键硅藻类群的生态,以了解气候引起的西格陵兰湖泊变化
  • 批准号:
    1203434
  • 财政年份:
    2013
  • 资助金额:
    $ 5万
  • 项目类别:
    Standard Grant
IGERT: Adaptation to Abrupt Climate Change (A2C2)
IGERT:适应突然的气候变化 (A2C2)
  • 批准号:
    1144423
  • 财政年份:
    2012
  • 资助金额:
    $ 5万
  • 项目类别:
    Continuing Grant
Climate-Induced Shifts in Alpine Diatom Communities: Linking Neoecological and Paleoecological Approaches to Incorporate Responses to Trophic Forcing
气候引起的高山硅藻群落变化:将新生态学和古生态学方法联系起来以纳入对营养强迫的响应
  • 批准号:
    0734277
  • 财政年份:
    2007
  • 资助金额:
    $ 5万
  • 项目类别:
    Continuing Grant
Collaborative Research: The Response of Lakes to Disturbance and Climate Change: Calibrating Sedimentary Records to Test the Landscape Position Concept
合作研究:湖泊对干扰和气候变化的响应:校准沉积记录以测试景观位置概念
  • 批准号:
    0751283
  • 财政年份:
    2007
  • 资助金额:
    $ 5万
  • 项目类别:
    Continuing Grant
Climate-Induced Shifts in Alpine Diatom Communities: Linking Neoecological and Paleoecological Approaches to Incorporate Responses to Trophic Forcing
气候引起的高山硅藻群落变化:将新生态学和古生态学方法联系起来以纳入对营养强迫的响应
  • 批准号:
    0639901
  • 财政年份:
    2007
  • 资助金额:
    $ 5万
  • 项目类别:
    Continuing Grant
RUI: The Role of Dissolved Organic Material in Regulating Primary Production in Prairie Saline Lakes
RUI:溶解有机物质在调节草原盐湖初级生产中的作用
  • 批准号:
    0751273
  • 财政年份:
    2007
  • 资助金额:
    $ 5万
  • 项目类别:
    Standard Grant
Collaborative Research: The Response of Lakes to Disturbance and Climate Change: Calibrating Sedimentary Records to Test the Landscape Position Concept
合作研究:湖泊对干扰和气候变化的响应:校准沉积记录以测试景观位置概念
  • 批准号:
    0516337
  • 财政年份:
    2005
  • 资助金额:
    $ 5万
  • 项目类别:
    Continuing Grant
RUI: The Role of Dissolved Organic Material in Regulating Primary Production in Prairie Saline Lakes
RUI:溶解有机物质在调节草原盐湖初级生产中的作用
  • 批准号:
    0315665
  • 财政年份:
    2003
  • 资助金额:
    $ 5万
  • 项目类别:
    Standard Grant

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