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update spinup info
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JunjieYU-UoM committed Apr 12, 2024
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Expand Up @@ -25,7 +25,7 @@ Running a global CESM/CTSM case requires a lot of computing resources that canno
- test parameter sensitivity

**Notice1**
PTS mode currently CAN NOT run with initial conditions., however, we can still can take advantage of this mode. Firstly, we can run case for longer time simulation to get the stable conditions. Moreover, although the land use models is model simulations are sensitive to initial soil moisture conditions, the urban module (CLMU) is less affected by soil. We compared two cases of different simulation time of New York Grid `lat=40.05`, `lon=-73.75`, `res=f09_g17`, `compset=2000_DATM%CRUv7_CLM50%SP_SICE_SOCN_SROF_SGLC_SWAV`. The 2015 JJA average `TREFMXAV`, `TREFMNAV`, `TSA` and `RH2M` of high density urban between the case of simulation time of 2005-2015 and the case of simulation time of 2015 JJA were compared. Their absolute difference are `0.009 K`, `0.035 K`, `0.023 K` and `0.076 %`, respectively. However, it should be noted that the difference in `vegetated_or_bare_soil` land unit are `0.123 K`, `0.191 K`, `0.036 K` and `0.173 %`, which is more significantly affected than urban. We recommend a long time simulation or spin-up for the experiments need non-urban variables. `TREFMXAV`, `TREFMNAV`, `TSA` and `RH2M` are daily maximum of average 2-m temperature, daily minimum of average 2-m temperature, 2m air temperature and 2m relative humidity, respectively.
PTS mode currently CAN NOT run with initial conditions., however, we can still can take advantage of this mode. Firstly, we can run case for longer time simulation to get the stable conditions. Moreover, although the land use models is model simulations are sensitive to initial soil moisture conditions, the urban module (CLMU) is less affected by soil. We compared two cases of different simulation time of New York Grid `lat=40.05`, `lon=-73.75`, `res=f09_g17`, `compset=2000_DATM%CRUv7_CLM50%SP_SICE_SOCN_SROF_SGLC_SWAV`. The 2015 JJA average `TREFMXAV`, `TREFMNAV`, `TSA` and `RH2M` of high density urban between the case of simulation time of 2005-2015 and the case of simulation time of 2015 JJA were compared. Their absolute difference are `0.009 K`, `0.035 K`, `0.023 K` and `0.076 %`, respectively. For the whole 2015 year, the absolute difference are `0.003 K`, `0.003 K`, `0.002 K` and `0.005 %`, respectively. However, it should be noted that the difference in `vegetated_or_bare_soil` land unit are `0.123 K`, `0.191 K`, `0.036 K` and `0.173 %` (`0.018 K`, `0.018 K`, `0.038 K` and `0.164 %` for whole year), which is more significantly affected than urban. We recommend a long time simulation or spin-up for the experiments need non-urban variables. `TREFMXAV`, `TREFMNAV`, `TSA` and `RH2M` are daily maximum of average 2-m temperature, daily minimum of average 2-m temperature, 2m air temperature and 2m relative humidity, respectively.

**Notice2**
The clmu-app currently does not provide ESMF as we want a compact container. The ESMF is important for making your own data of other mode of single points. We recommend to prepare the date out of the clmu-app, and then bind/import them to clmu-app to run the special single point case. If ESMF is still need, user can install it as follow:
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