Sensitivity Study of WRF Parameterization Schemes and Initial Fields on Rainstorm Simulation in Minjiang River Basin
As one of the most dominant weather forecasting tools,numerical models have been widely employed for early warning and prediction of strong weather processes such as extreme rainfalls.In practical forecasting operations,numerical models are affected by initial fields,boundary conditions,and paramete...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Pearl River
2023-01-01
|
| Series: | Renmin Zhujiang |
| Subjects: | |
| Online Access: | http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2023.10.004 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841536087577591808 |
|---|---|
| author | LIN Sinuo ZHANG Yinchi SUN Shao GUAN Xiaojun JIANG Caiying GAO Lu |
| author_facet | LIN Sinuo ZHANG Yinchi SUN Shao GUAN Xiaojun JIANG Caiying GAO Lu |
| author_sort | LIN Sinuo |
| collection | DOAJ |
| description | As one of the most dominant weather forecasting tools,numerical models have been widely employed for early warning and prediction of strong weather processes such as extreme rainfalls.In practical forecasting operations,numerical models are affected by initial fields,boundary conditions,and parameterization schemes,which makes it difficult to conduct long-time accurate forecasts.Based on the new-generation mesoscale numerical weather forecasting model,i.e.,weather research and forecasting (WRF) model,16 sets of microphysical processes and cumulus convection parameterization schemes are cross-combined to simulate the sensitivity of a continuous rainstorm process in the Minjiang River Basin from May 17 to 24,2021.The results show that the WRF model can reproduce the spatio-temporal distribution characteristics of this rainfall process,but it significantly overestimates the intensity and extent of the storm center,with the overall better performance of EXP9 (Lin-NT combination).For the mass sensitivity test of initial fields,the simulation results based on the optimal combination of parameterization schemes reveal that the fifth-generation atmospheric reanalysis of the European Center for Medium-Range Weather Forecasts (ERA5) has a sound effect for all magnitudes of rainfalls.Meanwhile,it best matches the spatio-temporal characteristics of the observed data,followed by global data assimilation system/final operational global analysis (GDAS/FNL),while climate forecast system operational analysis (CFS) is the worst.This study can provide methodological references for improving the accuracy of extreme rainfall simulation and forecasting. |
| format | Article |
| id | doaj-art-447ccfed30b547d9889199e9c4ecf039 |
| institution | Kabale University |
| issn | 1001-9235 |
| language | zho |
| publishDate | 2023-01-01 |
| publisher | Editorial Office of Pearl River |
| record_format | Article |
| series | Renmin Zhujiang |
| spelling | doaj-art-447ccfed30b547d9889199e9c4ecf0392025-01-15T02:21:33ZzhoEditorial Office of Pearl RiverRenmin Zhujiang1001-92352023-01-014447636711Sensitivity Study of WRF Parameterization Schemes and Initial Fields on Rainstorm Simulation in Minjiang River BasinLIN SinuoZHANG YinchiSUN ShaoGUAN XiaojunJIANG CaiyingGAO LuAs one of the most dominant weather forecasting tools,numerical models have been widely employed for early warning and prediction of strong weather processes such as extreme rainfalls.In practical forecasting operations,numerical models are affected by initial fields,boundary conditions,and parameterization schemes,which makes it difficult to conduct long-time accurate forecasts.Based on the new-generation mesoscale numerical weather forecasting model,i.e.,weather research and forecasting (WRF) model,16 sets of microphysical processes and cumulus convection parameterization schemes are cross-combined to simulate the sensitivity of a continuous rainstorm process in the Minjiang River Basin from May 17 to 24,2021.The results show that the WRF model can reproduce the spatio-temporal distribution characteristics of this rainfall process,but it significantly overestimates the intensity and extent of the storm center,with the overall better performance of EXP9 (Lin-NT combination).For the mass sensitivity test of initial fields,the simulation results based on the optimal combination of parameterization schemes reveal that the fifth-generation atmospheric reanalysis of the European Center for Medium-Range Weather Forecasts (ERA5) has a sound effect for all magnitudes of rainfalls.Meanwhile,it best matches the spatio-temporal characteristics of the observed data,followed by global data assimilation system/final operational global analysis (GDAS/FNL),while climate forecast system operational analysis (CFS) is the worst.This study can provide methodological references for improving the accuracy of extreme rainfall simulation and forecasting.http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2023.10.004WRF modelrainstormparameterization schemesinitial fieldsMinjiang River Basin |
| spellingShingle | LIN Sinuo ZHANG Yinchi SUN Shao GUAN Xiaojun JIANG Caiying GAO Lu Sensitivity Study of WRF Parameterization Schemes and Initial Fields on Rainstorm Simulation in Minjiang River Basin Renmin Zhujiang WRF model rainstorm parameterization schemes initial fields Minjiang River Basin |
| title | Sensitivity Study of WRF Parameterization Schemes and Initial Fields on Rainstorm Simulation in Minjiang River Basin |
| title_full | Sensitivity Study of WRF Parameterization Schemes and Initial Fields on Rainstorm Simulation in Minjiang River Basin |
| title_fullStr | Sensitivity Study of WRF Parameterization Schemes and Initial Fields on Rainstorm Simulation in Minjiang River Basin |
| title_full_unstemmed | Sensitivity Study of WRF Parameterization Schemes and Initial Fields on Rainstorm Simulation in Minjiang River Basin |
| title_short | Sensitivity Study of WRF Parameterization Schemes and Initial Fields on Rainstorm Simulation in Minjiang River Basin |
| title_sort | sensitivity study of wrf parameterization schemes and initial fields on rainstorm simulation in minjiang river basin |
| topic | WRF model rainstorm parameterization schemes initial fields Minjiang River Basin |
| url | http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2023.10.004 |
| work_keys_str_mv | AT linsinuo sensitivitystudyofwrfparameterizationschemesandinitialfieldsonrainstormsimulationinminjiangriverbasin AT zhangyinchi sensitivitystudyofwrfparameterizationschemesandinitialfieldsonrainstormsimulationinminjiangriverbasin AT sunshao sensitivitystudyofwrfparameterizationschemesandinitialfieldsonrainstormsimulationinminjiangriverbasin AT guanxiaojun sensitivitystudyofwrfparameterizationschemesandinitialfieldsonrainstormsimulationinminjiangriverbasin AT jiangcaiying sensitivitystudyofwrfparameterizationschemesandinitialfieldsonrainstormsimulationinminjiangriverbasin AT gaolu sensitivitystudyofwrfparameterizationschemesandinitialfieldsonrainstormsimulationinminjiangriverbasin |