The following software libraries and other references are utilized in the creation this repository.
hfsubset - distributed by LynkerIntel under GPL-3.0
Lynker Spatial - distributed under the Open Database License, copyright
ngen - distributed by NOAA-OWP, license
ngen-cal - distributed by NOAA-OWP license
NGIAB - distributed by CIROH-UA
nwmurl - distributed by CIROH-UA under the MIT License