how to set up experiment when wrf-3dpwp is used

[wengh]

Hi all,
I want to make simulation with wrf-3dpwp. I can use the default ocean level (ocean_z), temperature (ocean_t), and salinity (ocean_s) to make simulation. I guess the default ocean_z, and ocean_s are the temperture and salinity profile, and the profiles are used for all the ocean grid point. However, I think it is more reasonable that ocean profiles should be different between different ocean, and different between different grid point in a given ocean. Ocean analysis data from HYCOM can give ocean temperature and salinity information. How to set up reasonable temperature and salinity profile according to different ocean using HYCOM analysis data. Only change ocean_t and ocean_s in namelist.input or provide initial ocean condition using WPS?

Following is the default value associate wrf-3dpwd in namelist.input.
ocean_levels = 30,

ocean_z = 5., 15., 25., 35., 45., 55.,

65., 75., 85., 95., 105., 115.,

125., 135., 145., 155., 165., 175.,

185., 195., 210., 230., 250., 270.,

290., 310., 330., 350., 370., 390.

ocean_t = 302.3493, 302.3493, 302.3493, 302.1055, 301.9763, 301.6818,

301.2220, 300.7531, 300.1200, 299.4778, 298.7443, 297.9194,

297.0883, 296.1443, 295.1941, 294.1979, 293.1558, 292.1136,

291.0714, 290.0293, 288.7377, 287.1967, 285.6557, 284.8503,

284.0450, 283.4316, 283.0102, 282.5888, 282.1674, 281.7461

ocean_s = 34.0127, 34.0127, 34.0127, 34.3217, 34.2624, 34.2632,

34.3240, 34.3824, 34.3980, 34.4113, 34.4220, 34.4303,

34.6173, 34.6409, 34.6535, 34.6550, 34.6565, 34.6527,

34.6490, 34.6446, 34.6396, 34.6347, 34.6297, 34.6247,

34.6490, 34.6446, 34.6396, 34.6347, 34.6297, 34.6247

 

[Ming Chen]

You are right that for the 3D PWP option, the initial temperature and salinity profiles are the same everywhere over the ocean. It is certainly more reasonable to provide spatially varying information. However, it cannot be done by changing namelist options of ocean_t and ocean_s. It involves creating 3D input data and reading this 3D data into the model. Since WRF has entered the maintenance state and it is no longer our top priority to further develop the model, we no longer support such kind of activities.

 

[wengh]

You are right that for the 3D PWP option, the initial temperature and salinity profiles are the same everywhere over the ocean. It is certainly more reasonable to provide spatially varying information. However, it cannot be done by changing namelist options of ocean_t and ocean_s. It involves creating 3D input data and reading this 3D data into the model. Since WRF has entered the maintenance state and it is no longer our top priority to further develop the model, we no longer support such kind of activities.

Hi Chen. Thank you for informing me that.