normal plate anemometernormal pressurenormal ripplenormal stream flownormal velocitynormal yearnormalizednorth atlantic oscillationnorth equatorial currentnorth temperate zonenorthwesternotchnotched weirnozzlenucleationnucleinuee ardentenullnull readingnumberical domainnumberical integrationnumerical forecast modelnumerical instabilitynumerical integral methodnumerical integrationnumerical methodnumerical modelingnumerical simulationnumerical stabilitynumerical weather forecastnumerical weather prediction