splitterspoilspoil bankspouting velocitysprayspray flowspreaderspreader boardspringspring watersprinklerspuddingspur dikespur terracesquallsquall frontsquall line stabilitystabilitystabilized channelstablestable air massstable slope methodstable streamstaff gagestaff gaugestagestage discharge relationstage hydrographstage of riverstagnation presurestalactitestalagmitestandard atmospherestandard creststandard deviationstandard errorstandard fall velocitystandard isobaric surfacestandard panstandardized precipitation indexstanding cloudstanding wavestannerstarting conditionsstartup periodstatement orientedstatic headstatic pressurestatic stabilitystatical dynamical model