TED: A global temperature-driven thermoelastic displacement dataset for GNSS reference stations (2000–2023)

This repository provides station-level daily time series of temperature-driven vertical thermoelastic displacement (TED) for continuous GNSS reference stations spanning 2000–2023. The TED series are generated with a full-spectrum, layered finite-element framework driven by ERA5 temperature fields and parameterised with site-specific subsurface thermophysical properties derived from global soil datasets. The product is distributed as a correction-ready dataset designed to be consistent with standard daily GNSS coordinate solutions. To reduce longitude-dependent artefacts associated with fixed-epoch sampling, the model is evaluated at four UTC epochs (00/06/12/18) and the resulting realisations are combined using a phase-consistent scheme to produce a single daily TED estimate.

The ngl_station.txt file lists GNSS station names together with their latitude and longitude. Data are provided as one plain-text file per station (e.g., 0ABL_thermal.txt) and can optionally be organised into subfolders by the first character of the filename (e.g., files starting with 0 stored in a 0/ subdirectory). Each station file contains three whitespace-delimited columns: (1) Year (YYYY), (2) day of year (DOY; 1–365, or 366 in leap years), and (3) vertical TED displacement (mm). The daily TED values can be matched directly to GNSS daily height time series using the Year–DOY keys and applied as an environmental correction (e.g., subtracting TED from observed heights) in station-level analyses or large-scale processing workflows.