Radar Formigal - 2025

Data from a SFCW radar placed at the AEMET-Formigal field laboratory for the 2024-2025 measurement campaing. The aim of the measurements is to determine the snow water equivalent (SWE) and the structure of the snowpack. All files are in the same directory, named as follows: Filename: Location_Instrument_InitialDate_FinalDate.csv Location: measurement site Instrument: device (radar installation) used for the measurements InitialDate: date (YYYYMMDD) of the first measurement in the file FinalDate: date (YYYYMMDD) of the last measurement in the file The data is in plain CSV files and doesn't need specific software. Each file contains a series of radar measurements, corresponding to whole days, collected as the S21 parameter of a two antenna system, organized in rows. There are four data rows for each measurement: Header: InstrumentUsed, numberOfPoints, date (YYYY/MM//DD HH:mm) Frequencies in Hz (numberOfPoints) Real part of S21 (numberOfPoints) Imaginary part of S21 (numberOfPoints)本数据集源自部署于AEMET福尔米加尔野外实验室的步进频率连续波雷达（SFCW, Stepped-Frequency Continuous Wave），采集自2024-2025年度野外测量项目。本次测量的核心目标为测定雪水当量（SWE, Snow Water Equivalent）与积雪层结构。 所有数据文件均存储于同一目录下，命名规则统一为：`Location_Instrument_InitialDate_FinalDate.csv`，各字段含义如下： - Location：测量站点位置 - Instrument：本次测量所用的雷达设备（安装系统） - InitialDate：文件内首次记录测量的日期，格式为YYYYMMDD - FinalDate：文件内末次记录测量的日期，格式为YYYYMMDD 数据集采用纯CSV格式存储，无需专用软件即可读取。每份文件包含多组单日雷达测量数据，以双天线系统的S21参数为观测对象，按行组织存储。每组完整测量包含四行数据，依次为： 1. 表头行：InstrumentUsed（所用仪器）、numberOfPoints（采样点数）、date（测量时间，格式为YYYY/MM//DD HH:mm） 2. 以赫兹（Hz）为单位的频率序列，长度与numberOfPoints一致 3. S21参数的实部，长度与numberOfPoints一致 4. S21参数的虚部，长度与numberOfPoints一致