Has anyone looked at public bathymetric survey data for anomaly detection? I've been digging into how deep-ocean bathymetric surveys work, and I think there's an underused public data angle for this community that doesn't require any new claims or sightings — just analysis of what's already out there. **Background**: NOAA's National Centers for Environmental Information (NCEI) maintains a public archive of multibeam sonar survey data from decades of research and naval cruises. This data maps...