Water quality, meteorological, remote-sensing and GIS datasets for the Danjiangkou Reservoir and its upstream (1986-2025) with reproducible analysis code

This deposit contains quality-controlled datasets and a reproducible analysis pipeline for the Danjiangkou Reservoir and its upstream: (1) a water-quality dataset of 222 records extracted from 23 published papers (1986-2025), with documented unit corrections and exclusion flags; (2) ERA5 meteorological series, 136 Landsat scene-level NDCI records, and DEM/land-cover statistics; (3) the full Python pipeline reproducing all figures and statistics, including RDA with bootstrap uncertainty and a month-scale independent-pairing calibration experiment demonstrating that absolute chlorophyll-a retrieval from public literature data is not reliable.

The analysis scripts run offline from the data directory; the download scripts regenerate primary data from public APIs.