COMPASS-FME Terrestrial Ecosystem Manipulation to Probe the Effects of Storm Treatments (TEMPEST) Experiment Level 1 Sensor Data v2-0

This is the version 2-0 Level 1 (L1) data release for COMPASS-FME environmental sensors located at our Terrestrial Ecosystem Manipulation to Probe the Effects of Storm Treatments (TEMPEST) experimental site. This manipulative, ecosystem-scale TEMPEST experiment addresses the potential for freshwater and estuarine-water disturbance events to alter tree function, species composition, and ecosystem processes in a deciduous coastal forest in MD, USA. The experiment uses a large-unit (2000 m2), un-replicated experimental design, with three 50 m × 40 m plots serving as control, freshwater, and estuarine-water treatments. L1 data are close to raw, but are units-transformed and have out-of-instrument-bounds, out-of-service, and outlier flags added. Duplicates and missing data are removed but otherwise these data are not filtered, and have not been subject to any additional algorithmic or human QA/QC. Any scientific analyses of L1 data should be performed with care. **This dataset will be updated quarterly with new data for the duration of the project** This dataset includes: - An overall dataset README file that describes the current version, gives citation and contact information, etc. - Site- and year-specific folders, each holding variable-specific CSV (comma separated value) data files for each site and plot in that year. - Metadata files within each site-year folder provide full information on data units, expected ranges, contact information, detailed flood times, as well as a general description of the site. - Environmental sensor types that appear in the data files include weather (ClimaVUE50, CS, RM Young, and LI instruments in the graphs below); soil conditions (TEROS12); soil redox state (Redox); groundwater variables (AquaTROLL200 and AquaTROLL600); open water sondes (Exo); tree sap velocity (Sapflow); and system voltage and state (Datalogger). Data are normally logged every 15 minutes. Please see v2-0 TEMPEST L1 Sensor Package Quick Start.pdf for detailed information on data package structure, temporal coverage, and versioning. The TEMPEST flood events occurred on the following dates. They lasted for ~10 hours each day and delivered ~80,000 gallons to each plot; many data streams are available at 1 or 5 minute frequency during these periods. * Tests: Aug 25 (fresh plot) and Sep 9 (salt plot), 2021 * TEMPEST 1: June 22, 2022 * TEMPEST 2: June 6-7, 2023 * TEMPEST 3: June 11-13, 2024本数据集为部署于**陆地生态系统操控以探究风暴处理效应（Terrestrial Ecosystem Manipulation to Probe the Effects of Storm Treatments，缩写TEMPEST）**实验站点的COMPASS-FME环境传感器的2.0版本Level 1（L1）数据发布包。 这项基于生态系统尺度的操控性TEMPEST实验，旨在探究淡水与河口水体扰动事件，对美国马里兰州（MD）落叶海岸森林内树木功能、物种组成及生态系统过程的潜在影响。本实验采用大单元（2000平方米）无重复实验设计，设置3块50米×40米的样地，分别作为对照组、淡水处理组与河口水体处理组。 L1级数据接近原始数据，但已完成单位转换，并添加了仪器量程外、设备停用及异常值标记。数据已去除重复值与缺失值，但未进行额外筛选，亦未经过任何算法或人工的质量保证与质量控制（QA/QC）流程。对L1级数据开展任何科学分析时均需谨慎。**本数据集将在项目周期内按季度更新新增数据**。 本数据集包含以下内容： - 总数据集README文件：用于说明当前版本、引用规范及联系方式等信息； - 按站点与年份划分的文件夹：每个文件夹内包含对应年份各站点、样地的变量专属CSV（逗号分隔值）数据文件； - 每个站点-年份文件夹内附带元数据文件：包含数据单位、预期取值范围、联系方式、详细淹水时段以及站点概况等完整信息； - 数据文件中涵盖的环境传感器类型包括：气象传感器（如下方图表中的ClimaVUE50、CS、RM Young及LI仪器）、土壤状况传感器（TEROS12）、土壤氧化还原状态传感器（Redox）、地下水变量传感器（AquaTROLL200与AquaTROLL600）、开放水体探头（Exo）、树木液流速率传感器（Sapflow）以及系统电压与状态传感器（数据记录仪Datalogger）。数据常规采集频率为每15分钟一次。 如需了解数据包结构、时间覆盖范围及版本管理的详细信息，请参阅v2-0 TEMPEST L1 Sensor Package Quick Start.pdf文件。 TEMPEST实验的淹水事件发生日期如下。每场淹水每日持续约10小时，向每块样地注入约80000加仑水体；在此期间，多数数据流的采集频率可达到1或5分钟一次： * 预实验：2021年8月25日（淡水样地）与2021年9月9日（盐水样地） * TEMPEST实验1：2022年6月22日 * TEMPEST实验2：2023年6月6日至7日 * TEMPEST实验3：2024年6月11日至13日