The Application Research of FCN Algorithm in Different Severe Convection Short-Time Nowcasting Technology in China, Gansu Province
This study explores the application of the fully convolutional network (FCN) algorithm to the field of meteorology, specifically for the short-term nowcasting of severe convective weather events such as hail, convective wind gust (CG), thunderstorms, and short-term heavy rain (STHR) in Gansu. The tr...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-02-01
|
| Series: | Atmosphere |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4433/15/3/241 |
| _version_ | 1797242113172176896 |
|---|---|
| author | Wubin Huang Jing Fu Xinxin Feng Runxia Guo Junxia Zhang Yu Lei |
| author_facet | Wubin Huang Jing Fu Xinxin Feng Runxia Guo Junxia Zhang Yu Lei |
| author_sort | Wubin Huang |
| collection | DOAJ |
| description | This study explores the application of the fully convolutional network (FCN) algorithm to the field of meteorology, specifically for the short-term nowcasting of severe convective weather events such as hail, convective wind gust (CG), thunderstorms, and short-term heavy rain (STHR) in Gansu. The training data come from the European Center for Medium-Range Weather Forecasts (ECMWF) and real-time ground observations. The performance of the proposed FCN model, based on 2017 to 2021 training datasets, demonstrated a high prediction accuracy, with an overall error rate of 16.6%. Furthermore, the model exhibited an error rate of 18.6% across both severe and non-severe weather conditions when tested against the 2022 dataset. Operational deployment in 2023 yielded an average critical success index (CSI) of 24.3%, a probability of detection (POD) of 62.6%, and a false alarm ratio (FAR) of 71.2% for these convective events. It is noteworthy that the predicting performance for STHR was particularly effective with the highest POD and CSI, as well as the lowest FAR. CG and hail predictions had comparable CSI and FAR scores, although the POD for CG surpassed that for hail. The FCN model’s optimal performances in terms of hail prediction occurred at the 4th, 8th, and 10th forecast hours, while for CG, the 6th hour was most accurate, and for STHR, the 2nd and 4th hours were most effective. These findings underscore the FCN model’s ideal suitability for short-term forecasting of severe convective weather, presenting extensive prospects for the automation of meteorological operations in the future. |
| first_indexed | 2024-04-24T18:34:03Z |
| format | Article |
| id | doaj.art-140ce6355f4d4452964ed69e8a0d1818 |
| institution | Directory Open Access Journal |
| issn | 2073-4433 |
| language | English |
| last_indexed | 2024-04-24T18:34:03Z |
| publishDate | 2024-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Atmosphere |
| spelling | doaj.art-140ce6355f4d4452964ed69e8a0d18182024-03-27T13:20:28ZengMDPI AGAtmosphere2073-44332024-02-0115324110.3390/atmos15030241The Application Research of FCN Algorithm in Different Severe Convection Short-Time Nowcasting Technology in China, Gansu ProvinceWubin Huang0Jing Fu1Xinxin Feng2Runxia Guo3Junxia Zhang4Yu Lei5Lanzhou Central Meteorological Observatory, Lanzhou 730020, ChinaLanzhou Central Meteorological Observatory, Lanzhou 730020, ChinaDepartment of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong 999077, ChinaLanzhou Central Meteorological Observatory, Lanzhou 730020, ChinaLanzhou Central Meteorological Observatory, Lanzhou 730020, ChinaMeteorological Bureau of Lanzhou, Lanzhou 730020, ChinaThis study explores the application of the fully convolutional network (FCN) algorithm to the field of meteorology, specifically for the short-term nowcasting of severe convective weather events such as hail, convective wind gust (CG), thunderstorms, and short-term heavy rain (STHR) in Gansu. The training data come from the European Center for Medium-Range Weather Forecasts (ECMWF) and real-time ground observations. The performance of the proposed FCN model, based on 2017 to 2021 training datasets, demonstrated a high prediction accuracy, with an overall error rate of 16.6%. Furthermore, the model exhibited an error rate of 18.6% across both severe and non-severe weather conditions when tested against the 2022 dataset. Operational deployment in 2023 yielded an average critical success index (CSI) of 24.3%, a probability of detection (POD) of 62.6%, and a false alarm ratio (FAR) of 71.2% for these convective events. It is noteworthy that the predicting performance for STHR was particularly effective with the highest POD and CSI, as well as the lowest FAR. CG and hail predictions had comparable CSI and FAR scores, although the POD for CG surpassed that for hail. The FCN model’s optimal performances in terms of hail prediction occurred at the 4th, 8th, and 10th forecast hours, while for CG, the 6th hour was most accurate, and for STHR, the 2nd and 4th hours were most effective. These findings underscore the FCN model’s ideal suitability for short-term forecasting of severe convective weather, presenting extensive prospects for the automation of meteorological operations in the future.https://www.mdpi.com/2073-4433/15/3/241severe convective weather classificationFCN algorithmshort-term nowcastingQinghai–Tibet PlateauGansu |
| spellingShingle | Wubin Huang Jing Fu Xinxin Feng Runxia Guo Junxia Zhang Yu Lei The Application Research of FCN Algorithm in Different Severe Convection Short-Time Nowcasting Technology in China, Gansu Province Atmosphere severe convective weather classification FCN algorithm short-term nowcasting Qinghai–Tibet Plateau Gansu |
| title | The Application Research of FCN Algorithm in Different Severe Convection Short-Time Nowcasting Technology in China, Gansu Province |
| title_full | The Application Research of FCN Algorithm in Different Severe Convection Short-Time Nowcasting Technology in China, Gansu Province |
| title_fullStr | The Application Research of FCN Algorithm in Different Severe Convection Short-Time Nowcasting Technology in China, Gansu Province |
| title_full_unstemmed | The Application Research of FCN Algorithm in Different Severe Convection Short-Time Nowcasting Technology in China, Gansu Province |
| title_short | The Application Research of FCN Algorithm in Different Severe Convection Short-Time Nowcasting Technology in China, Gansu Province |
| title_sort | application research of fcn algorithm in different severe convection short time nowcasting technology in china gansu province |
| topic | severe convective weather classification FCN algorithm short-term nowcasting Qinghai–Tibet Plateau Gansu |
| url | https://www.mdpi.com/2073-4433/15/3/241 |
| work_keys_str_mv | AT wubinhuang theapplicationresearchoffcnalgorithmindifferentsevereconvectionshorttimenowcastingtechnologyinchinagansuprovince AT jingfu theapplicationresearchoffcnalgorithmindifferentsevereconvectionshorttimenowcastingtechnologyinchinagansuprovince AT xinxinfeng theapplicationresearchoffcnalgorithmindifferentsevereconvectionshorttimenowcastingtechnologyinchinagansuprovince AT runxiaguo theapplicationresearchoffcnalgorithmindifferentsevereconvectionshorttimenowcastingtechnologyinchinagansuprovince AT junxiazhang theapplicationresearchoffcnalgorithmindifferentsevereconvectionshorttimenowcastingtechnologyinchinagansuprovince AT yulei theapplicationresearchoffcnalgorithmindifferentsevereconvectionshorttimenowcastingtechnologyinchinagansuprovince AT wubinhuang applicationresearchoffcnalgorithmindifferentsevereconvectionshorttimenowcastingtechnologyinchinagansuprovince AT jingfu applicationresearchoffcnalgorithmindifferentsevereconvectionshorttimenowcastingtechnologyinchinagansuprovince AT xinxinfeng applicationresearchoffcnalgorithmindifferentsevereconvectionshorttimenowcastingtechnologyinchinagansuprovince AT runxiaguo applicationresearchoffcnalgorithmindifferentsevereconvectionshorttimenowcastingtechnologyinchinagansuprovince AT junxiazhang applicationresearchoffcnalgorithmindifferentsevereconvectionshorttimenowcastingtechnologyinchinagansuprovince AT yulei applicationresearchoffcnalgorithmindifferentsevereconvectionshorttimenowcastingtechnologyinchinagansuprovince |