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Resolving biogeochemical processes in lakes using remote sensing

机译：使用遥感解决湖泊中的生物地球化学过程

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摘要

Remote sensing helps foster our understanding of inland water processes allowing a synoptic view of water quality parameters. In the context of global monitoring of inland waters, we demonstrate the benefit of combining in-situ water analysis, hydrodynamic modelling and remote sensing for investigating biogeochemical processes. This methodology has the potential to be used at global scales. We take the example of four Landsat-8 scenes acquired by the OLI sensor and MODIS-Aqua imagery over Lake Geneva (FranceSwitzerland) from spring to early summer 2014. Remotely sensed data suggest a strong temporal and spatial variability during this period. We show that combining the complementary spatial, spectral and temporal resolutions of these sensors allows for a comprehensive characterization of estuarine, littoral and pelagic near-surface features. Moreover, by combining in-situ measurements, biogeochemical analysis and hydrodynamic modelling with remote sensing data, we can link these features to river intrusion and calcite precipitation processes, which regularly occur in late spring or early summer. In this context, we propose a procedure that can be used to monitor whiting events in temperate lakes worldwide.
机译：遥感有助于培养我们对内陆水处理的理解，允许水质参数的概要视图。在内陆水域的全球监测的背景下，我们证明了对研究生物地球化学过程的原位水分分析，流体动力学建模和遥感相结合的益处。该方法有可能在全球范围内使用。我们从2014年春季到日内瓦湖（弗朗西瓦岛）奥利传感器和Modis-Aqua Imagery收购的四个Landsat-8场景的例子。远程感测的数据在此期间表明了强烈的时间和空间变异。我们表明，组合这些传感器的互补空间，光谱和时间分辨率允许全面表征河口，沿着壁式和骨盆近表面特征。此外，通过与遥感数据的原位测量，生物地理分析和流体动力学建模相结合，我们可以将这些特征与河流入侵和方解石降水过程联系起来，该过程定期发生在春季或初夏。在这种情况下，我们提出了一种可以用于监测全球气候湖泊的Whiting事件的程序。

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  • 来源
    《Aquatic Sciences》 |2019年第2期|27.1-27.13|共13页
  • 作者

    Nouchi Vincent; Kutser Tiit; Wuest Alfred; Mueller Beat; Odermatt Daniel; Baracchini Theo; Bouffard Damien;

  • 作者单位

    EPFL ENAC IEE APHYS Phys Aquat Syst Lab Margaretha Kamprad Chair CH-1015 Lausanne Switzerland|Eawag Swiss Fed Inst Aquat Sci & Technol Surface Waters Res & Management Seestr 79 CH-6047 Kastanienbaum Switzerland;

    Univ Tartu Dept Remote Sensing & Marine Opt Estonian Marine Inst Maealuse 14 EE-12618 Tallinn Estonia;

    EPFL ENAC IEE APHYS Phys Aquat Syst Lab Margaretha Kamprad Chair CH-1015 Lausanne Switzerland|Eawag Swiss Fed Inst Aquat Sci & Technol Surface Waters Res & Management Seestr 79 CH-6047 Kastanienbaum Switzerland;

    Eawag Swiss Fed Inst Aquat Sci & Technol Surface Waters Res & Management Seestr 79 CH-6047 Kastanienbaum Switzerland;

    Eawag Swiss Fed Inst Aquat Sci & Technol Surface Waters Res & Management Seestr 79 CH-6047 Kastanienbaum Switzerland|Odermatt & Brockmann GmbH Stampfenbachstr 57 CH-8006 Zurich Switzerland;

    EPFL ENAC IEE APHYS Phys Aquat Syst Lab Margaretha Kamprad Chair CH-1015 Lausanne Switzerland;

    Eawag Swiss Fed Inst Aquat Sci & Technol Surface Waters Res & Management Seestr 79 CH-6047 Kastanienbaum Switzerland;

  • 收录信息 美国《科学引文索引》(SCI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Landsat-8; MODIS-Aqua; Inland waters; Remote sensing; Calcification; Whiting; Global scale monitoring; In-situ measurements;

    机译：Landsat-8;Modis-Aqua;内陆水域;遥感;钙化;愚蠢;全球规模监测;原位测量;

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