Observations and model output for "The 2025 Mw 7.7 Myanmar Earthquake: Finite Fault Versus Point Source in Modeling Coseismic Ionospheric Disturbances"

Observation tables and model output accompanying the paper "The 2025 Mw 7.7 Myanmar Earthquake: Finite Fault Versus Point Source in Modeling Coseismic Ionospheric Disturbances" (Guerra et al.). Together with the cidmodel software (https://github.com/mguerra96/cidmodel), they reproduce every figure of the paper. Observations. tec_observations.parquet holds the slant total electron content of the 249 GNSS satellite–receiver arcs analysed in the paper, one row per sample (30 s for 212 arcs, 1 s for 37), with the line-of-sight geometry and the synthetic slant TEC of the finite-fault and point-source models on the same samples. arrival_picks.parquet holds one row per arc with the hand-picked arrival time, crest and trough, peak-to-peak amplitude and period of the coseismic ionospheric disturbance. The raw observations are not redistributed here. Model output. ne0.npy and B_field.npy are the background electron density (IRI-2020) and the unit geomagnetic field (IGRF) on the model grid. ray_cube.npz is the acoustic ray cube (travel time, amplitude and wave direction per azimuth, range and altitude). dne_binned and dne_point are the electron-density perturbation of the finite-fault and point-source models on the model grid, every 15 s from origin time to 2100 s; each is a pair of a .npy array and a small .npz sidecar. Model grid. Local tangent plane centred on the epicentre (22.001° N, 95.925° E): x (east) and y (north) from −1400 to 1400 km at 20 km (141 nodes), altitude z from 100 to 800 km at 2.5 km (281 nodes). Origin time 2025-03-28 06:20:56 UTC. Formats and placement. Apache Parquet (tables) and NumPy .npy/.npz (arrays). Place the files as described in the software README: the two Parquet files, ne0.npy and B_field.npy in data/inputs/, the rest in data/cubes/. The column and array descriptions are under Technical info below.