Dataset of; Amazon rainforest ecosystem exchange of CO2 and H2O through turbulent understory ejections. Described in: Moonen et al. 2025 (PNAS)

This data supports the 2025 study titled: High frequency isotopic composition measurements to classify cloud induced turbulent patterns above the Amazon rain forest. It consists of windfield, mole fraction, PAR, and isotopic composition data gathered using an eddy covariance system (IRGASON EC-100), open path gas analyser (LICOR 7500), PAR sensor, and Picarro L-2130i water vapour isotope analyser respectively.Three data-sets are shared, of differing depth of analysis, duration, and frequencies (10Hz, 10s, 30min). The units of all included variables can are detailed in the units.csv file. 4Hz 'raw' data example of a 30 minute data interval containing a clear ejection event (Fig1). <br>Limitted to wind field and molefraction information.<br>10s processed data containing variables on ejections and cloud fields (Fig 4). <br>In addition, 10s agregated data on scalars, wind fiels, and isotopic compositions is also available. <br>30min processed flux data which include derived source compositions and quadrant specific fluxes (Fig 2 &amp; 3).<br>In addition, isotopic flux data for the dD and d18O isotopes is shared. <br>

本数据集支撑2025年一项题为《亚马逊雨林上空云诱导湍流模式分类的高频同位素组成测量》的研究。数据集涵盖风场、摩尔分数、光合有效辐射（Photosynthetically Active Radiation, PAR）及同位素组成四类数据，分别通过涡动协方差系统（IRGASON EC-100）、开路式气体分析仪（LICOR 7500）、光合有效辐射传感器与Picarro L-2130i水汽同位素分析仪采集获取。本次共享的数据集共3套，三者的分析深度、时长与采样频率均存在差异，分别为10Hz、10s与30min。所有变量的单位详情可参见units.csv文件。
一段包含清晰喷射事件的30分钟时长4Hz“原始”数据示例（图1），该示例仅包含风场与摩尔分数信息。
包含喷射事件与云场相关变量的10s处理后数据（图4）。
此外，还可获取标量、风场及同位素组成的10s聚合数据。
包含衍生源组成与象限特异性通量的30min处理后通量数据（图2与图3）。
另外，本次共享还包含氘（dD）与氧18（d18O）同位素的同位素通量数据。