View source for CE-QUAL-W2 Legacy Roundtable

{{pdf|RoundtableSummary.pdf|CE-QUAL-W2 Legacy Roundtable Summary}} <br><br>

=Scott Wells' Caretaking List and Model Wishlist=

==Basic CE-QUAL-W2 Model ‘Caretaking’==

Bug list – fix update – mechanism for review<br>
Mechanism for dissemination of code and review of code changes<br>
Model maintenance support mechanism<br>
Model updates – to make model easier to use
*Change I and K to RiverMile/RiverKM and Elevation, m
*Remove dummy segments
*Simplify input files: LPR, VPR, external head BC temp and water quality, bathymetry file

River Model Enhancements
*Initial flow for model simulation
*Trapezoidal geometry of vertical layers
*Initial water surface calculation for model start

Hyporheic Flow<br>
Channel Bottom Heating<br>
Fish Bioenergetics Modeling + Fish “smart particle” movement + particle transport<br>
Bio-energetics approach<br>
Fish Bioenergetics Model
*Parameters are a function of
**size, age (allometry)
**temperature
**energy densities (predator, prey)
**feeding duration, handling time
**activity levels (swimming)
*Consumption has prey availability component
Daily fish growth potential<br>
*For 30 minute timesteps:
**Inputs are updated:  temperature, stomach capacity, predator and prey distributions, feeding status, swimming speed & activity
**Parameters are calculated
*Daily: 
**growth is calculated from sum of the parameter values and mass is updated (Growth is calculated per cell, but is a function of starting mass)
Fish-Particle Transport Model
*Random particle movement
*Passive transport
*Settling velocity
*Fish behavior movement
Improvements in nutrient, algae, macrophyte algorithms	
*Variable algae stoichiometry of N, P, C
*Floating macrophytes
*Track P on Inorganic SS allowing desorption
*Add NH3/NH4+ as derived variables
W3
*3D Version<br><br>

==W2 Wish List of Additional Enhancements==

PC version enhancements
*3rd party animation and visual tools for PC exe 
*Multiple processor parallel version
*Need new PC compiler for exe release
Pre processor enhancements 
*Enhanced checks
Post-processing<br>
Linux/Unix version
*Multiple processor/parallel version
Source enhancements
*Code optimization
*Recovery from numerical instabilities
*Particulate inorganic P – new state variable
*Redo boundary segment numbering scheme
*River model
**Ice cover in rivers
*Turbulence algorithm
**Refine k-e
**Add k-l model
**Reynold’s analogy – eddy viscosity-eddy diffusivity a f(stability)
*Implement simultaneous equation solver in release code
*Sediment diagenesis
*Sediment transport/dynamic bathymetry
*Toxics
*Shading algorithm –simplify data requirements