USING DEFAULT URBAN MORPHOLOGY warning despite using GloUCP dataset instead of NUDAPT44_1km

[luyixiao]

I am encountering an issue with urban canopy parameterization while running wrf.exe with the GloUCP dataset. Here's my setup and the problem I'm facing:

Background​

• I am using GloUCP dataset as a replacement for NUDAPT44_1km to provide urban morphology parameters.
• GloUCP is structured similarly to NUDAPT44_1km and includes 132 urban categories, which I verified by checking the URB_PARAM variable in my met_em files.

Issue​

When running wrf.exe, I get the following warning:

USING DEFAULT URBAN MORPHOLOGY

This suggests that WRF is not recognizing my custom urban parameters from GloUCP(details can be checked in rsl.out.0000).

What I've Checked​

1. met_em files:
   • The URB_PARAM variable exists and contains 132 layers, matching NUDAPT44_1km's structure.
2. wrfinput files:
   • Variables like URBAN and LU_INDEX are present (shows in the image), but HGT_URB2D, HI_URB2D, and LF_URB2D (mentioned in the NUDAPT44_1km documentation) are missing.

My Questions​

1. Is WRF actually using my GloUCP dataset?
   • How can I confirm if the model is using my custom urban parameters or falling back to defaults?
2. How do I resolve the USING DEFAULT URBAN MORPHOLOGY warning?
   • Are there additional steps required to properly integrate GloUCP with WRF?
   • Do I need to modify the registry files or namelist options to recognize GloUCP's urban parameters?

 

[xiaozi]

您好，我正在尝试将 WRF 中的默认 URB_PARAM 参数替换为 GLOUCP 数据集。geogrid.exe 程序成功运行且没有错误，但是当我使用 ncview 检查 geo_em.d02.nc 文件中的 URB_PARAM 参数时，发现 URB_PARAM 参数没有被成功替换，仍然显示为 0。您能帮我理解为什么会这样吗？