Scheduled Downtime
On Friday 21 April 2023 @ 5pm MT, this website will be down for maintenance and expected to return online the morning of 24 April 2023 at the latest

Issues with WRF (V4.3) model run after ingestion of LCZ

Hi everyone. My heartfelt thanks to all the contributors in this forum. You people are awesome!!

I am a novice in modeling.I am simulating thunderstorms using 3 domains (9km, 3km and 1km) using WRF V4.3. I have generated MODIS 21 Class geo files using WPS4.3. I intend to ingest LCZ data for urban studies. For this, I have downloaded LCZ data from the website(Global map of Local Climate Zones) (lcz_v3.tif) in tif format. I have converted the urban categories of MODIS into LCZ urban types (31-41) using Python modules and created modified geo_em with LCZ data ingested for three domains. I could sucessfully run ungrib, metgrid and real. But when I run WRF, I get the model crashing every time. I am attaching the namelist.input, VEGPARM.TBL and my rsl error logs. Kindly request you to provide me help in resolving this issue.

My apologies if these issues are trivial.

Thank you once again !!!
 

Attachments

  • namelist.input
    4.7 KB · Views: 6
  • rsl.out.0000
    36.5 KB · Views: 6
  • VEGPARM.TBL
    23.3 KB · Views: 3
Hello, i want to know how u have reclassify urban categories of MODIS into LCZ urban types (31-41) using Python modules. Can u share the Python script?

Also after ingesting lcz data, have u linked it with GEOGRID.TBL_LCZ?
 
Hi @nomadicscientist,

Apologies for the delay in response. If you were to run this without any of your modified/additional data, does it run to completion? I'm just curious whether the issue is with the data or with WRF, itself. Let me know the answer to that, and then for this run that's failing, please package all of the rsl* files together into a single *.tar or zipped file and attach that. Thanks!
 
Hi everyone. My heartfelt thanks to all the contributors in this forum. You people are awesome!!

I am a novice in modeling.I am simulating thunderstorms using 3 domains (9km, 3km and 1km) using WRF V4.3. I have generated MODIS 21 Class geo files using WPS4.3. I intend to ingest LCZ data for urban studies. For this, I have downloaded LCZ data from the website(Global map of Local Climate Zones) (lcz_v3.tif) in tif format. I have converted the urban categories of MODIS into LCZ urban types (31-41) using Python modules and created modified geo_em with LCZ data ingested for three domains. I could sucessfully run ungrib, metgrid and real. But when I run WRF, I get the model crashing every time. I am attaching the namelist.input, VEGPARM.TBL and my rsl error logs. Kindly request you to provide me help in resolving this issue.

My apologies if these issues are trivial.

Thank you once again !!!
It might be helpful to review papers in your research city or province that have a similar research focus. Pay close attention to their nesting strategy.

For instance, if you find that many of them use one-way nesting (feedback = 0 in namelist.input), it could be worth trying that approach in your own simulation.

The reason for this suggestion is that this kind of problem can sometimes arise from issues within the boundary layer physics scheme, particularly when using two-way nesting.
 
Top