Dear WRF experts,
I am using WRF version 4.4.1. with modified land use and 5 urban categories. The urban categories are based on my own classification and the urban parameters are also based on my own calculation, but I use the LCZ function (use_wudapt_lcz = 1) to represent the 5 urban categories (LU INDEX 31, 32, 33, 34, 35) by also changing the urban parameters in the URBPARM_LCZ.TBL. My simulation is for Jakarta, Indonesia, in the month of September and April. The simulation for September crushed a few times in the middle but eventually can last until around the 20th day after a few restart runs by adjusting the time step. While the simulation for April can only last less than 2 days. It is a more humid month than September, so I guess the simulation is easier to get unstable. I tried everything as suggested here What is the most common reason for a segmentation fault?, but nothing works especially for my April simulation. The only time it works is when I set the sf_urban_physics = 0. So, most likely the problem is in the urban module.
My question is, is this because I am using the LCZ function without an LCZ map and its urban parameters? If that is the problem, is there a way to still consider 5 urban categories without utilizing the LCZ function? Or is there a certain part in the urban module that needs to be modified here?
I'll appreciate any suggestions.
Thank you.
- Dea
I am using WRF version 4.4.1. with modified land use and 5 urban categories. The urban categories are based on my own classification and the urban parameters are also based on my own calculation, but I use the LCZ function (use_wudapt_lcz = 1) to represent the 5 urban categories (LU INDEX 31, 32, 33, 34, 35) by also changing the urban parameters in the URBPARM_LCZ.TBL. My simulation is for Jakarta, Indonesia, in the month of September and April. The simulation for September crushed a few times in the middle but eventually can last until around the 20th day after a few restart runs by adjusting the time step. While the simulation for April can only last less than 2 days. It is a more humid month than September, so I guess the simulation is easier to get unstable. I tried everything as suggested here What is the most common reason for a segmentation fault?, but nothing works especially for my April simulation. The only time it works is when I set the sf_urban_physics = 0. So, most likely the problem is in the urban module.
My question is, is this because I am using the LCZ function without an LCZ map and its urban parameters? If that is the problem, is there a way to still consider 5 urban categories without utilizing the LCZ function? Or is there a certain part in the urban module that needs to be modified here?
I'll appreciate any suggestions.
Thank you.
- Dea