Re: [wrf-hydro_users] Digest for wrf-hydro_users@ucar.edu - 5 updates in 4 topics

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Yongxin Zhang

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Jun 11, 2025, 12:21:15 PM6/11/25
to wrf-hyd...@ucar.edu, martinng...@gmail.com
Hi Martin,

     I will take a look at your WRF files before and after regridding but somehow I have not been able to access the "FORCING_fromWRFoutputs" folder. Could you please give me access to it? Thanks.

Yongxin

On Wed, Jun 11, 2025 at 5:13 AM <wrf-hyd...@ucar.edu> wrote:
Aarti Soni <aartis...@gmail.com>: Jun 10 06:02AM -0700

Hi,
I have few questions regarding model calibration.
1. I was preparing csv file obtained from obsStrData.Rdata. In csv file
there are number of columns (site_no, POSIXct, quality_flag, obs,
threshold, basinTypeName, basinType). I want to understand how the
threshold value, basin number and basin type can be assigned?
2. I have streamflow for 6-stations. Can I do multiple station calibrations
at one time or I have to do it at single station?
 
Thank you.
Arezoo RafieeiNasab <are...@ucar.edu>: Jun 10 01:17PM -0700

Hi Aatri,
 
Here is my attempt to answer your questions.
1. Here are some description :
 
- Quality flag: that is not used, so you could ignore it, and set it
something.
- threshold: This is a value that is used later for calculation of the
categorial metrics such as POD, FAR. It is up to you how you would like to
define it, you could use 90% or 95% depends on what is of interest for you.
- basinTypeName = could be anything, this is more for information and
not used. We usually categorize basins into flashy, regular, slow, and
snowy.
- basinType = a number that shows what basin type we have. 0: snowy; 1:
slow; 2: flashy and 3: regular.
- The basinType is used in setting up the parameters that are used to
identify events for event based error metrics.
 
 
2. You could use all gauges at the same time meaning to calibrate to
several gauges instead of 1 at once. Below is the option in the setup file
for such setup and explained below.
 
enableMultiSites
 
-
 
Specify whether to calibrate to more than one streamflow gages or not
-
 
if enableMultiSite set to 1, a file containing the list of the gages of
interest and the corresponding weights in the calculation of the objective
function is required. Name of the file is hardcoded to "calib_sites.csv"
that is placed under the domain dir and contains the following fields:
-
 
FID : Feature id of the gage as it appears in the CHANOBS
-
 
site_no : site identifier as it appears in the obsStrDate.Rdata file
-
 
weight : weight to be given to site when calculating the objective
function
 
 
This is a sample file that I had for the calib_sites.csv:
"FID","site_no","weight"
2040783,"02330450",0.5
2041579,"02331000",0.5
 
This means I am giving 50% weight to gage 02330450 and 50% to the gage
02331000.
You could play with this as you wish.
Hopefully this helps! Thanks!
Arezoo
 
 
--
Arezoo Rafieei Nasab, Ph.D.
NCAR/RAL Project Scientist II
office: 303-497-2888
Natalia Carrera Ávila <nataliac...@gmail.com>: Jun 10 12:58PM -0700

Hello everyone!
I have found something similar in my results, and also in the example cases
called Gridded and Reach. I've seen ZWT, WT and WA variables have constant
(in time) and homogeneous (through the domain) values. On the other hand, a
similar variable as ZWT (zwattablrt) has different values along the domain
in the examples (sadly, not yet in my run) which seems to me more
realistic, yet in the RESTART files I've only found the variables ZWT, WA
and WT. Why is this??
 
I appreciate any comments on this.
Natalia.
El martes, 5 de diciembre de 2023 a la(s) 9:51:09 a.m. UTC-3, Aarti Soni
escribió:
 
Natalia Carrera Ávila <nataliac...@gmail.com>: Jun 10 12:19PM -0700

Hi! Where you able to fix it? Seems like an error associated with the
configurations on the namelist.wps, according to the internet..
El lunes, 12 de mayo de 2025 a la(s) 10:48:39 p.m. UTC-4, Victoria Chou
escribió:
 
Martin Nguyen <martinng...@gmail.com>: Jun 10 06:19AM -0700

Hi Kevin,
 
Thank you so much for your email. I really appreciate it. I am trying your
suggestion and will keep you updated soon.
 
Hi Aubrey,
 
Thank you so much for your email. I have placed my "FORCING_fromWRFoutputs"
folder here
<https://drive.google.com/drive/folders/11V250ZxnnuGBUReKVZLDmu0mkjuUjxQn> (please
let me know if you cannot access). It includes two subfolders - before and
after regridding. For the regridding, I followed the instruction here
<https://ral.ucar.edu/projects/wrf_hydro/pre-processing-tools> (WRF* not
for window machine). Please let me know if you need further information.
 
Kind regards
 
Martin Nguyen
 
On Tuesday, June 10, 2025 at 6:11:04 AM UTC+12 aubrey wrote:
 
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