Analog dates for MERRA-2 at 301 precipitation stations in Switzerland (1981-2010)

The dataset contains the results of seven variants of analog methods (AM) applied to the MERRA-2 reanalysis at 301 stations in Switzerland. The parameters were calibrated for daily precipitation. This dataset is part of an assessment of the impact of the reanalyses on AMs. See the reference for more details on the methods. The dataset principally consists in the calibrated parameters (in text files) for all methods and all stations as well as the analog dates (as Modified Julian Dates) in netCDF files. The precipitation values could not be published as they are not freely available (please contact the authors in case of interest). The dataset structure is: - A folder for every analog method (2SLP, 2Z, …) containing: - The analog dates for the calibration period (calibration_period.zip) - The analog dates for the validation period (validation_period.zip) - The input files used by AtmoSwing (the software) for the calibration (parameters_calibration_[...].xml) - The resulting calibrated parameters for every station (optimized_parameters.zip) - The list of the precipitation stations with some of their properties (CatalogPredictands-Precipitation-Daily-Station-Swizerland.xml)

本数据集包含七种类比方法（Analog Methods，AM）变体应用于瑞士301个站点的MERRA-2再分析数据的计算结果。所有校准参数均针对每日降水完成调优，本数据集是评估再分析数据对类比方法影响的研究组成部分，有关此类比方法的详细信息，请参阅相关参考文献。
本数据集主要包含两类内容：其一为所有类比方法与所有站点的校准参数（存储于文本文件中）；其二为netCDF格式文件中以修正儒略日期（Modified Julian Date）标注的类比日期数据。由于降水数据无法免费公开获取，故未将其纳入本数据集发布，如有相关需求，请联系数据集作者。
本数据集的组织结构如下：
- 每个类比方法对应一个专属文件夹（如2SLP、2Z等），文件夹内包含以下内容：
- 校准时段的类比日期压缩包（calibration_period.zip）
- 验证时段的类比日期压缩包（validation_period.zip）
- AtmoSwing软件用于校准的输入配置文件（parameters_calibration_[...].xml）
- 各站点的最终优化校准参数压缩包（optimized_parameters.zip）
- 瑞士每日降水站点列表及其部分属性文件（CatalogPredictands-Precipitation-Daily-Station-Swizerland.xml）