[Invest-forum] Dead Volume for reservoir without turbine

[noreply at ecoinformatics.org]

Dead Volume for reservoir without turbine

http://invest.ecoinformatics.org/discuss/tier-1-sediment-retention/520166410/500509818

    Hello, The reservoir we're working with does not have a turbine, just
   a spillway. I do not think this matters for the dead volume
   calculation but i want to work through how this works in the framework
   and terminology of the InVEST model and the reservoir we are working
   with to make sure I get this right . The design of the reservoir
   allows for 3 levels of storage; (1) at the top - controlled flood
   storage, (2) in the middle - water supply storage and (3) at the
   bottom - sedimentation storage (analogous to dead volume, right?). So,
   even though we do not have a turbine I can think of the bottom of the
   reservoir, allowed sedimentation storage, as the same as dead volume.
   Essentially no one wants the volume of sediments to go over the
   sediment storage capacity because it messes up the other 2 storage
   levels and if the reservoir is too full that would impact the
   structural integrity of the dam. I just want to make sure that I
   understand what is going on conceptually and that dead volume is the
   same as sedimentation storage. Thanks for the help, Kevin