Projected tide level vs. NISAR L-band overflight — South Carolina coast

Every NISAR flyover of the study frames: past acquisitions with the observed Charleston water level at the acquisition instant (NOAA verified data) and projected passes with the predicted level. Click any row — past or future — to highlight all flyovers in both geometries within ±0.15 m of its water level; matches at high/low slack are most reliable (mid-flood/ebb levels vary across the scene as the tide wave propagates). Tide-matched A/D pair chips mark ascending/descending passes within 0.20 m of each other — solid teal when both sit at slack. Check boxes on past scenes to build a download script or open them in ASF Vertex.

Downloads require a free NASA Earthdata Login (script uses your ~/.netrc). Note: the MHW threshold is the Charleston tidal datum — whether MHW equals the local marsh-platform elevation is an open project question, to be refined with RTK/SET elevations and interior-estuary gauges.