longitudnal transferlooploose rock damlosing streamlost circulationlost energylost riverlow cloudslow flowlow humplow level groinlow permeabilitylow plasticitylow pressurelow stagelow tidelow waterlow water linelow water trainiglower nappelower nappe profilelowlandls facrorlubricationlullluminositylumplumped modellysimetermach numbermacroclimatemacroinstructionmacrometeorologymacroporesmacroporosity factormade landmagmamagnitudemagnitude of luminationmain channelmain spillwaymaintenancemajor channelmajor land improvementmajority rulemanagementmango showermanholemaning coefficientmaning formula