atmos:citation:research:north_dakota_cloud_modification_project-ndarb-hail_project:testing_wrfv4.0.0_for_ndarb_wrf_runs
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atmos:citation:research:north_dakota_cloud_modification_project-ndarb-hail_project:testing_wrfv4.0.0_for_ndarb_wrf_runs [2023/11/03 19:42] – [Comparing Plots made with WRF 3.7 vs. 4.0] alex.troxel | atmos:citation:research:north_dakota_cloud_modification_project-ndarb-hail_project:testing_wrfv4.0.0_for_ndarb_wrf_runs [2024/05/10 20:42] (current) – [Testing WRF v4.0 for NDARB] alex.troxel | ||
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======Testing WRF v4.0 for NDARB====== | ======Testing WRF v4.0 for NDARB====== | ||
- | Below, you will find how the ND Cloud Modification Project runs data through WRF 4.0 instead of WRF 3.7. This is a general instruction on downloading, | + | Below, you will find how the ND Cloud Modification Project runs data through WRF 4.0 instead of WRF 3.7. This is a general instruction on downloading, |
**If you ever get stuck to the point of no repair ... turn it off and on again! Most of the errors I ran into were fixed by simply logging off, getting a snack, and logging back in.** | **If you ever get stuck to the point of no repair ... turn it off and on again! Most of the errors I ran into were fixed by simply logging off, getting a snack, and logging back in.** | ||
+ | |||
+ | ====Tips for building WRF==== | ||
+ | |||
+ | *Use the instructions found at https:// | ||
+ | *To download files onto a server use the command ' | ||
+ | *Always make sure the environmental variables are defined everytime you try to run WRF! | ||
+ | *Don't use the command, export PATH=$DIR/ | ||
+ | *I used the Linux x86_64 option '32. (Serial)' | ||
+ | *A complete guide to WPS's namelist can be found here, https:// | ||
+ | *Download WPS so it is in the same directory as WRF. Don't put WPS inside the WRF directory. | ||
+ | *If you would like to learn more about WRF, check out this User's Guide, https:// | ||
+ | |||
===== NDARB servers ===== | ===== NDARB servers ===== | ||
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Find WRF namelist options at https:// | Find WRF namelist options at https:// | ||
+ | |||
+ | To see the namelist specifications that a wrf output file was run with, type: ncdump -h wrfout_d0... | ||
--------------------------------------- | --------------------------------------- | ||
- | ===== WRFV3.7 vs WRF4.0 ===== | + | ===== WRFV3.7 vs WRF4.0 |
- | The following was taken from the README files for each version. | + | The following was taken from the README files for each version. |
**Advanced Research WRF (ARW) solver: Eulerian mass, hydrostatic and non-hydrostatic** | **Advanced Research WRF (ARW) solver: Eulerian mass, hydrostatic and non-hydrostatic** | ||
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*digital filter initialization | *digital filter initialization | ||
*WENO advection options | *WENO advection options | ||
- | ***WRF4.0 ONLY** Hybrid sigma-pressure vertical coordinate (since V3.9) | + | ***WRF4.0/4.2 ONLY Hybrid sigma-pressure vertical coordinate (since V3.9)** |
**Two-way nesting:** | **Two-way nesting:** | ||
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*observation nudging | *observation nudging | ||
*spectral nudging | *spectral nudging | ||
- | ***WRF4.0 ONLY** flux-adjusting surface data nudging | + | ***WRF4.0/4.2 ONLY flux-adjusting surface data nudging** |
+ | |||
+ | **Thompson Microphysics options: | ||
+ | ***WRF 4.2 ONLY significant alteration is introduced for diagnosing the Y-intercept parameter for the one- | ||
+ | moment graupel. A few adjustments made for rain number concentration tendencies, two of which are bug fixes. | ||
+ | Also a minor adjustment for consistency to minimum cloud ice size in event a balance of ice number is needed. | ||
+ | Lastly a bug fix for partly-melted snow. The most notable changes are: (1) a larger mean rain size from cloud | ||
+ | water to rain autoconversion that helps to produce a stronger leading edge of convective squall lines; (2) | ||
+ | partly-melted snow was falling too rapidly while this fix produces very realistic progression of melting snow | ||
+ | falling gradually toward rain velocity as it melts.** | ||
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--------------------------------------- | --------------------------------------- | ||
- | ====9. Automation==== | ||
- | Within the ' | ||
- | |||
- | */ | ||
- | */ | ||
- | */ | ||
- | */ | ||
- | |||
- | --------------------------------------- | ||
=====Other Information===== | =====Other Information===== | ||
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| | ||
- | ====Tips for building WRF==== | ||
- | *Use the instructions found at https:// | ||
- | *To download files onto a server use the command ' | ||
- | *Always make sure the environmental variables are defined everytime you try to run WRF! | ||
- | *Don't use the command, export PATH=$DIR/ | ||
- | *I used the Linux x86_64 option '32. (Serial)' | ||
- | *A complete guide to WPS's namelist can be found here, https:// | ||
- | *Download WPS so it is in the same directory as WRF. Don't put WPS inside the WRF directory. | ||
- | *If you would like to learn more about WRF, check out this User's Guide, https:// | ||
- | =====Comparing Plots made with WRF 3.7 vs. 4.0===== | ||
- | {{: | ||
- | {{: |
atmos/citation/research/north_dakota_cloud_modification_project-ndarb-hail_project/testing_wrfv4.0.0_for_ndarb_wrf_runs.1699040554.txt.gz · Last modified: 2023/11/03 19:42 by alex.troxel