Dear WRFDA community,
I am working on enabling all-sky radiance simulation in WRFDA using RTTOV. For this, I would like to incorporate two additional variables from the WRF model output: CLDFRA (cloud fraction) and AFWA_CAPE (convective available potential energy). Both are available in my wrfout files.
I am modifying the subroutine da_get_innov_vector_rttov, and I would like to interpolate these variables to the observation locations, similar to how temperature or hydrometeor fields are handled. However, I am unsure whether these variables are already included in grid%xb, or whether I need to explicitly add them in da_transfer_wrftoxb or related routines.
My questions are:
I am working on enabling all-sky radiance simulation in WRFDA using RTTOV. For this, I would like to incorporate two additional variables from the WRF model output: CLDFRA (cloud fraction) and AFWA_CAPE (convective available potential energy). Both are available in my wrfout files.
I am modifying the subroutine da_get_innov_vector_rttov, and I would like to interpolate these variables to the observation locations, similar to how temperature or hydrometeor fields are handled. However, I am unsure whether these variables are already included in grid%xb, or whether I need to explicitly add them in da_transfer_wrftoxb or related routines.
My questions are:
- Are CLDFRA and AFWA_CAPE available by default in grid%xb? If not, what is the recommended way to include them?
- Has anyone successfully used CLDFRA or CAPE in RTTOV all-sky radiance simulations within WRFDA? If so, any suggestions for integration schemes would be appreciated.