List of todos to improve the results of WRF-SUEWS

[hamidrezaomidvar]

Here are what should be done based on my last discussion with Ting to improve results of WRF-SUEWS as of here:

• Turn on Q_f in the runs. To do so, we need to correct the values of AHprofile in namelist.SUEWS.

• OHM coefficients need to be fixed, and more realistic coefficients need to be considered.

• We can impose better initial conditions for SUEWS by running it offline.

• We need to release some of the fixed parameters in SUEWS to put it in namelist.suews.

[hamidrezaomidvar]

@sunt05: I have a quick question. Looking at namelist.suews, and comparing it with this paper, I understand that in values of OHM_coef(1:3, 1:4, 1:8), 1:3 is corresponded to a1,a2,a3 in equation (4) of the paper. The last index (1:8) is corresponded to the surface type. However, I am a bit confused by the second index (1:4). Would you please explain to me what this is?

[sunt05]

That dimension is to include the four configurations derived from the combination {winter, summer} *{dry, wet} so the seasonality in these coefficients can be accounted. See ohm-coef and its related links ohm-threshsw and ohm-threshsw

[hamidrezaomidvar]

Thanks, this page is very useful!! Maybe it is good to add it somewhere for reference (apart from SuPy documentation)

[sunt05]

Great to know this page is useful 😃 Any suggestion for a location to reference it? Or just feel free to put it anywhere you like: we can improve this as we move forward.

[hamidrezaomidvar]

I just put it in WRF-SUEWS wiki.

[hamidrezaomidvar]

Founding about AH: When usingEmissionMethod=2(Järvi et al. (2011) ), it gives AH_SUEWS=0 all the time since in SuMin, NumCapita has forced to 0. Is this correct?

[sunt05]

Not correct. Then we should release this from being fixed. Let's start another issue by listing those variables should have more "freedom".

[hamidrezaomidvar]

Two potential problems we regarding QF and QE: 1- it seems that the coefficient we were using (read from site-select) for QF are not for London. 2- the landuse fraction for for around the experimental site (recalculated from landusef of WRF) in the model has no vegetation which leads to very low QE

I will fix these two see if it fix the problem of QF and QE

[hamidrezaomidvar]

@sunt05 I am trying to have an offline run of SUEWS using SuPy for 2015-2016 April so I use the final states as the initialisation. Are there any forcing data for this period that is suitable for SuPy?

[sunt05]

check out this one: https://umep-docs.readthedocs.io/en/latest/pre-processor/Meteorological%20Data%20Download%20data%20(WATCH).html

[hamidrezaomidvar]

@sunt05 I added the spin up capability to getting_SUEWS_params.py. Now this script, runs SUEWS offline until convergence, and extract the values as an input for wrfinputs

[sunt05]

Good job!

@sunt05 I added the spin up capability to getting_SUEWS_params.py. Now this script, runs SUEWS offline until convergence, and extract the values as an input for wrfinputs

[hamidrezaomidvar]

Since all the matters here are solved, I close this issue!