negative channel storage values
Posted: Tue Jul 20, 2021 12:54 pm
Hello, I am new to raven. I set up a small basin (~10 km2) as a single basin using the UBCWM template for processes.
I have the following settings in the .rvi:
:Routing ROUTE_NONE
:CatchmentRoute ROUTE_TRI_CONVOLUTION
And in the hru.rvh
:SubBasins
:Attributes, NAME, DOWNSTREAM_ID, PROFILE, REACH_LENGTH, GAUGED
:Units, none, none, none, km, none
1, sub1, -1, default_trap, _AUTO, 1
:EndSubBasins
I am getting a -25% to -35% bias in the modelled streamflow. When I check the precipitation (4.4 mm) to the observed streamflow (4.0 mm) the R/P looks good (0.91), ample water to produce enough streamflow. So where is the water going? I notice that there are large negative values in the Channel Storage (mm) in the WatershedStorage.csv file (-2.99015 mm). Is this a sign that something is not set up properly? I see negative Channel Storage in the Alouette tutorial, but they are smaller -0.21407.
Thanks for any help you can provide.
Arelia
I have the following settings in the .rvi:
:Routing ROUTE_NONE
:CatchmentRoute ROUTE_TRI_CONVOLUTION
And in the hru.rvh
:SubBasins
:Attributes, NAME, DOWNSTREAM_ID, PROFILE, REACH_LENGTH, GAUGED
:Units, none, none, none, km, none
1, sub1, -1, default_trap, _AUTO, 1
:EndSubBasins
I am getting a -25% to -35% bias in the modelled streamflow. When I check the precipitation (4.4 mm) to the observed streamflow (4.0 mm) the R/P looks good (0.91), ample water to produce enough streamflow. So where is the water going? I notice that there are large negative values in the Channel Storage (mm) in the WatershedStorage.csv file (-2.99015 mm). Is this a sign that something is not set up properly? I see negative Channel Storage in the Alouette tutorial, but they are smaller -0.21407.
Thanks for any help you can provide.
Arelia