利用WRF(Weather Research Forecasting)模式和FNL(Final Operational Global Analysis)资料,对2022年8月8日惠民县一次大暴雨过程针对积云对流参数化方案进行了敏感性试验,以考察不同积云对流参数化方案KF(new ETA)、BettsMiller-Janji...利用WRF(Weather Research Forecasting)模式和FNL(Final Operational Global Analysis)资料,对2022年8月8日惠民县一次大暴雨过程针对积云对流参数化方案进行了敏感性试验,以考察不同积云对流参数化方案KF(new ETA)、BettsMiller-Janjic(BMJ)和Simplified Arakawa-Schubert(SAS)对此次降水过程的模拟影响。结果显示:3种积云对流参数化方案均能预报出整体降水过程,整体而言,KF方案模拟对此次强降水预报效果最佳。但在对降水范围与强度、各物理量的模拟中,3种积云对流参数化方案各有优劣。展开更多
Using linear regression and correlation analysis method,the variation trend characteristics of average temperature,sunshine,precipitation and the phenology of five kinds of animals(Barn Swallows,Frogs,Cryptotympana at...Using linear regression and correlation analysis method,the variation trend characteristics of average temperature,sunshine,precipitation and the phenology of five kinds of animals(Barn Swallows,Frogs,Cryptotympana atra,Crickets,Indian Cuckoo) in Huimin County during 1980-2008 were analyzed.On this basis,the relationship between the phenological phases of various animals and monthly temperature,sunshine and precipitation was analyzed.And the reasons that the phenological phases of various animals adapted to the climatic factors were also discussed.展开更多
文摘利用WRF(Weather Research Forecasting)模式和FNL(Final Operational Global Analysis)资料,对2022年8月8日惠民县一次大暴雨过程针对积云对流参数化方案进行了敏感性试验,以考察不同积云对流参数化方案KF(new ETA)、BettsMiller-Janjic(BMJ)和Simplified Arakawa-Schubert(SAS)对此次降水过程的模拟影响。结果显示:3种积云对流参数化方案均能预报出整体降水过程,整体而言,KF方案模拟对此次强降水预报效果最佳。但在对降水范围与强度、各物理量的模拟中,3种积云对流参数化方案各有优劣。
文摘Using linear regression and correlation analysis method,the variation trend characteristics of average temperature,sunshine,precipitation and the phenology of five kinds of animals(Barn Swallows,Frogs,Cryptotympana atra,Crickets,Indian Cuckoo) in Huimin County during 1980-2008 were analyzed.On this basis,the relationship between the phenological phases of various animals and monthly temperature,sunshine and precipitation was analyzed.And the reasons that the phenological phases of various animals adapted to the climatic factors were also discussed.