The time series InSAR deformation data of the Zhuhu Polder Levee

This dataset contains point-based time-series ground deformation measurements derived from Sentinel-1 ascending InSAR observations over the Zhuhu Polder Levee adjacent to Poyang Lake, China. All measurement points distributed along the levee embankment are stored in plain text format, with each row representing an independent point. Data Column Definition (per line, comma-separated float values) 1:Point number 2–3: Geographic coordinates (X, Y; local projected coordinate system) 4–5: WGS84 longitude (°), WGS84 latitude (°) 6: Height (m) 7: Deformation rate (mm/y) 8: Standard deviation of the residual phase (rad) 9: Estimated height uncertainty (m) 10: Estimated deformation rate uncertainty (mm/y) 11 onwards: Cumulative line-of-sight (LOS) displacement time series (unit: mm), corresponding to sequential Sentinel-1 acquisition dates (see itmes_A.txt). Negative values indicate ground displacement away from the satellite (subsidence), positive values denote uplift/movement toward the sensor.