Abdelaziz Lahmili

Pre-registration amendment v3 (L1C calibration result and exploratory declarations): When snow looks like water: wet-snow false floods in winter Sentinel-1 flood mapping of the Tensift basin (High Atlas, Morocco)

Amendment v3 to the pre-registration (v1 10.5281/zenodo.23130459; v2 10.5281/zenodo.23144531). L1C/L2A calibration gate on the held-out pilot winter: κ 0.800 [0.698–0.881], 321 snow pairs, 93.9% L1C visibility (≥ 1,500 m), so the 9-winter analysis is primary. It includes a declar...

Pre-registration: When snow looks like water: wet-snow false floods in winter Sentinel-1 flood mapping of the Tensift basin (High Atlas, Morocco)

This record pre-registers a study of wet-snow false positives in winter Sentinel-1 change-detection flood mapping in the Tensift basin (High Atlas, Morocco). The pilot winter 2019–20 was used to build and test the pipeline and is excluded from all confirmatory tests. The confirma...