PV-Live dataset - Measurements of global horizontal and tilted solar irradiance

The PV-Live dataset comprises data from a network of 40 solar irradiance measurement stations across the German state of Baden-Württemberg. All stations measure global horizontal irradiance and temperature with a pyranometer, and global tilted irradiance in east, south, and west direction with tilt angles of 25° with three photovoltaic reference cells in minute resolution. A quality control scheme has been developed specifically for this dataset and is applied to the measurements before publication. The minute resolution irradiance and temperature measurements are published with the derived quality flags. A description of the dataset and the quality control scheme is given in Lorenz et al. (2022) and Lorenz et al. (2020). The dataset contains data from September 2020 onwards. It will be continuously extended by adding data of the previous month on a monthly basis. QUALITY FLAGS Two types of flags are provided with the data. Each sensor is assigned a general quality flag, which is based on a combination of different tests. In addition, a shading flag is given, which is not sensor specific, i.e. it applies to all irradiance sensors simultaneously. The flags can have the levels 'passed, all tests complete', 'passed, not all tests complete', 'failed tests, likely erroneous' or 'failed tests, most likely erroneous'. If the flag level of the general quality flags is 'failed tests, most likely erroneous' the corresponding measurement value is set to NaN. DATA FORMAT The data is published as monthly .zip archives. Each archive contains the following files: 1. Tab separated data files (tng000XX_YYYY-MM.tsv) for each station, containing measurements and quality flags of one month 2. Tab separated station location metadata (metadata_stations_YYYY-MM.tsv) 3. Metadata of the dataset describing variable names and quality flag levels (metadata_measurements.json) 4. General comments on data availability and quality for the month (comments_quality_control_YYYY-MM.txt) 5. Log file of changes (change_log_YYYY-MM.txt) Station location metadata is given on a monthly basis because stations can be relocated. Therefore, we recommend to use the metadata valid for its corresponding month. VERSION UPDATES The data for each month is published in a new version of the dataset. Link which resolves to the newest version: https://zenodo.org/record/4036728 Additional changes in versions: - Version 7: - Recalculation of height information for all stations - One station has been moved to a new, nearby location on 16th September 2021 ACKNOWLEDGEMENTS The data have been collected and processed by Fraunhofer ISE in the framework of PV-Live, a project in cooperation with TransnetBW. We thank our station partners for cooperation in installing and maintaining our measurement stations: EnBW Solar, Badenova, Pohlen Solar, Oekogeno Solar7, Ecovision, Hochschule Ulm, Hofgemeinschaft Heggelbach, Soltechnics-solution and the Stadtwerke Karlsruhe, Grünstadt, Buchen, Crailsheim, Schwäbisch Hall, Pforzheim, Konstanz, Waldshut-Tiengen, Schwäbisch Gmünd, Ravensburg, Eberbach, Baden-Baden.PV-Live数据集包含覆盖德国巴登-符腾堡州的40座太阳辐照度监测站网络的观测数据。所有监测站均使用总辐射表（pyranometer）测量总水平辐照度与气温，并通过搭载3个光伏参考电池、倾角为25°的东、南、西向传感器测量总倾斜辐照度，采样分辨率为1分钟。本数据集专门开发了一套质量控制方案，并在公开发布前对所有测量数据应用该方案。以分钟级分辨率记录的辐照度与气温数据，连同衍生的质量标记一同发布。该数据集及质量控制方案的详细说明可参见Lorenz等人2022年与2020年的研究成果。 本数据集自2020年9月起收录数据，后续将按月补充上月数据，实现持续更新扩容。 ## 质量标记 本数据集附带两类标记：每台传感器均分配有综合多项测试结果生成的通用质量标记；此外还包含非传感器专属的遮蔽标记，该标记同时适用于所有辐照度传感器。标记共分为以下等级：「所有测试均通过」「部分测试未完成，仍可通过」「测试未通过，数据疑似存在错误」「测试未通过，数据极大概率存在错误」。若通用质量标记的等级为「测试未通过，数据极大概率存在错误」，则对应测量值将被设为NaN。 ## 数据格式 本数据集以月度.zip压缩包形式发布。每个压缩包包含以下文件： 1. 各监测站的制表符分隔数据文件（命名格式为"tng000XX_YYYY-MM.tsv"），存储对应监测站当月的测量数据与质量标记 2. 制表符分隔的监测站位置元数据文件（命名格式为"metadata_stations_YYYY-MM.tsv"） 3. 描述变量名称与质量标记等级的数据集元数据文件（"metadata_measurements.json"） 4. 当月数据可用性与质量情况的总体说明文件（"comments_quality_control_YYYY-MM.txt"） 5. 变更日志文件（"change_log_YYYY-MM.txt"） 由于监测站可能发生搬迁，监测站位置元数据按月提供。因此建议使用对应月份的有效元数据。 ## 版本更新 每月数据均以数据集新版本形式发布。指向最新版本的链接：https://zenodo.org/record/4036728 各版本更新内容如下： - 版本7： - 重新计算了所有监测站的海拔高度信息 - 1台监测站于2021年9月16日搬迁至附近新址 ## 致谢 本数据集由弗劳恩霍夫太阳能系统研究所（Fraunhofer ISE）在PV-Live项目框架下完成采集与处理，该项目与特恩斯BW（TransnetBW）合作开展。 感谢各监测站合作方协助安装与维护本监测网络：EnBW Solar、Badenova、Pohlen Solar、Oekogeno Solar7、Ecovision、乌尔姆应用科技大学（Hochschule Ulm）、Hofgemeinschaft Heggelbach、Soltechnics-solution，以及卡尔斯鲁厄、格林施塔特、比登、克雷尔斯海姆、施瓦本哈尔、普福尔茨海姆、康斯坦茨、瓦尔德朔尔茨-蒂恩根、施瓦本格明德、拉芬斯堡、埃伯巴赫、巴登-巴登的市政公用事业公司。