dischrge hydographdiscontinousdiscontinous flowdiscontinuity in flow profilediscontinuous gullydiscrete l or 2 normdiscretizationdisintegrationdismembered streamdispersiondispersion ratiodisplacement meterdisplacement perioddissectiondisspersivitydistilled waterdistributarydistributed modelingdistributiondistribution of sedimentdistribution reservoirdistributry streamdistrictdistrict forecastdistrotiondisturbancedisturbed airdisturbed sampleditchditch liningdiurnaldiurnal rangediurnal temperature rangedivergencedivergence zonediversiondiversion channeldiversion cutdiversion damdiversion flowdiversion structurediversion terracediversion worksdiversoin getediverting weirdivide linedividing walldivision boxdivision ratiodivision section