Integrating continuous atmospheric boundary layer and tower-based flux measurements to advance understanding of land-atmosphere interactions
Integrating continuous atmospheric boundary layer and tower-based flux measurements to advance understanding of land-atmosphere interactions
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DOI：
10.1016/j.agrformet.2021.108509
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发表时间：
2021-09
影响因子：
6.2
通讯作者：
M. Helbig;T. Gerken;E. Beamesderfer;D. Baldocchi;T. Banerjee;S. Biraud;W. Brown;N. Brunsell;E. Burakowski;S. Burns;Brian J. Butterworth;W. S. Chan;K. Davis;A. Desai;J. Fuentes;D. Hollinger;N. Kljun;M. Mauder;K. Novick;J. M. Perkins;D. Rahn;C. Rey‐Sanchez;J. Santanello;P. Stoy;R. Sullivan;A. Richardson
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文献类型：
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作者：
M. Helbig;T. Gerken;E. Beamesderfer;D. Baldocchi;T. Banerjee;S. Biraud;W. Brown;N. Brunsell;E. Burakowski;S. Burns;Brian J. Butterworth;W. S. Chan;K. Davis;A. Desai;J. Fuentes;D. Hollinger;N. Kljun;M. Mauder;K. Novick;J. M. Perkins;D. Rahn;C. Rey‐Sanchez;J. Santanello;P. Stoy;R. Sullivan;A. Richardson
大气边界层介导陆地表面和自由对流层之间的能量、物质和动量交换，整合了一系列物理、化学和生物过程，被定义为大气的最低层（范围从几米到3公里）。在这篇综述中，我们调查如何连续，自动化观测大气边界层可以提高科学价值的同位涡度相关测量的陆地-大气通量的碳，水和能量，正在全球FLUXNET网站。我们强调了将基于塔的通量测量与连续、长期的大气边界层测量相结合的四个关键机会：（1）解释通量塔站点的地面通量和大气边界层交换动态和反馈，（2）支持通量足迹建模，解释异质和山区地形中的地面通量，以及涡度协方差通量测量的质量控制，（3）支持区域尺度模拟和将地表通量放大到大陆尺度;（4）量化陆-气耦合并验证其在地球系统模型中的代表性。增加一套大气边界层测量涡度协方差通量塔网站，并支持这些数据共享塔网络，将使地球科学界能够解决新出现的研究问题，更好地解释正在进行的通量塔测量，并将提供新的机会，FLUXNET科学家和大气和遥感科学家之间的合作。
The atmospheric boundary layer mediates the exchange of energy, matter, and momentum between the land surface and the free troposphere, integrating a range of physical, chemical, and biological processes and is defined as the lowest layer of the atmosphere (ranging from a few meters to 3 km). In this review, we investigate how continuous, automated observations of the atmospheric boundary layer can enhance the scientific value of co-located eddy covariance measurements of land-atmosphere fluxes of carbon, water, and energy, as are being made at FLUXNET sites worldwide. We highlight four key opportunities to integrate tower-based flux measurements with continuous, long-term atmospheric boundary layer measurements: (1) to interpret surface flux and atmospheric boundary layer exchange dynamics and feedbacks at flux tower sites, (2) to support flux footprint modelling, the interpretation of surface fluxes in heterogeneous and mountainous terrain, and quality control of eddy covariance flux measurements, (3) to support regional-scale modeling and upscaling of surface fluxes to continental scales, and (4) to quantify land-atmosphere coupling and validate its representation in Earth system models. Adding a suite of atmospheric boundary layer measurements to eddy covariance flux tower sites, and supporting the sharing of these data to tower networks, would allow the Earth science community to address new emerging research questions, better interpret ongoing flux tower measurements, and would present novel opportunities for collaborations between FLUXNET scientists and atmospheric and remote sensing scientists.