Using actual precipitation in Shaoyang of 2018-2020,precipitation forecast of ECMWF model was tested.The results showed that winter accuracy rate was the highest,followed by autumn,and summer accuracy rate was the low...Using actual precipitation in Shaoyang of 2018-2020,precipitation forecast of ECMWF model was tested.The results showed that winter accuracy rate was the highest,followed by autumn,and summer accuracy rate was the lowest.24-h TS scoring results showed that the shorter the cumulative time,the lower the TS.Forecasters had a strong ability to predict summer rainstorms.展开更多
With the rapid development of China's social economy, the number of car ownership increases year by year, the number of road traffic accidents is also high. In order to deal with each major traffic accident scient...With the rapid development of China's social economy, the number of car ownership increases year by year, the number of road traffic accidents is also high. In order to deal with each major traffic accident scientifically and effectively and clarify the responsibility of the accident, vehicle performance appraisal is particularly important. In order to clarify the influence of vehicles in traffic accidents and ensure the identification of accident liability, it is necessary to evaluate their related performance. In this paper, the braking identification as the entry point, the related theories and technologies involved are discussed, hoping to give some inspiration to the relevant personnel.展开更多
文摘Using actual precipitation in Shaoyang of 2018-2020,precipitation forecast of ECMWF model was tested.The results showed that winter accuracy rate was the highest,followed by autumn,and summer accuracy rate was the lowest.24-h TS scoring results showed that the shorter the cumulative time,the lower the TS.Forecasters had a strong ability to predict summer rainstorms.
文摘With the rapid development of China's social economy, the number of car ownership increases year by year, the number of road traffic accidents is also high. In order to deal with each major traffic accident scientifically and effectively and clarify the responsibility of the accident, vehicle performance appraisal is particularly important. In order to clarify the influence of vehicles in traffic accidents and ensure the identification of accident liability, it is necessary to evaluate their related performance. In this paper, the braking identification as the entry point, the related theories and technologies involved are discussed, hoping to give some inspiration to the relevant personnel.
