north equatorial currentnorth temperate zonenorthwesternotchnotched weirnozzlenucleationnucleinuee ardentenullnull readingnumberical domainnumberical integrationnumerical forecast modelnumerical instabilitynumerical integral methodnumerical integrationnumerical methodnumerical modelingnumerical simulationnumerical stabilitynumerical weather forecastnumerical weather predictionoasisobjective forecastoblique dunesoblique expansion waveoblique jumpobsequentobservationobstructionocclusionoceanocean currentoceanic climateoceanographyochric epipedonocluded frontoff site damage costsoffestoffsetoffshero terraceofftakeogee spillwayogee weirogee weirsoktaold riverold valleyombrometer