Analysis of the Precipitable Water Vapor Observation in Yunnan–Guizhou Plateau during the Convective Weather System in Summer
The ERA5 reanalysis dataset of the European Center for Medium-Range Weather Forecasts (ECMWF) in the summers from 2015 to 2020 was used to compare and analyze the features of the precipitable water vapor (PWV) observed by six ground-based Global Navigation Satellite System (GNSS) meteorology (GNSS/M...
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| Format: | Article |
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MDPI AG
2021-08-01
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| Series: | Atmosphere |
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| Online Access: | https://www.mdpi.com/2073-4433/12/8/1085 |
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| author | Heng Hu Yunchang Cao Chuang Shi Yong Lei Hao Wen Hong Liang Manhong Tu Xiaomin Wan Haishen Wang Jingshu Liang Panpan Zhao |
| author_facet | Heng Hu Yunchang Cao Chuang Shi Yong Lei Hao Wen Hong Liang Manhong Tu Xiaomin Wan Haishen Wang Jingshu Liang Panpan Zhao |
| author_sort | Heng Hu |
| collection | DOAJ |
| description | The ERA5 reanalysis dataset of the European Center for Medium-Range Weather Forecasts (ECMWF) in the summers from 2015 to 2020 was used to compare and analyze the features of the precipitable water vapor (PWV) observed by six ground-based Global Navigation Satellite System (GNSS) meteorology (GNSS/MET) stations in the Yunnan–Guizhou Plateau. The correlation coefficients of the two datasets ranged between 0.804 and 0.878, the standard deviations ranged between 4.686 and 7.338 mm, and the monthly average deviations ranged between −4.153 and 9.459 mm, which increased with the altitude of the station. Matching the quality-controlled ground precipitation data with the PWV in time and space revealed that most precipitation occurred when the PWV was between 30 and 65 mm and roughly met the normal distribution. We used the vertical integral of divergence of moisture flux (∇<i><sub>p</sub></i>) and S-band Doppler radar networking products combined with the PWV to study the convergence and divergence process and the water vapor delivery conditions during the deep convective weather process from August 24 to 26, 2020, which can be used to analyze the real-time observation capability and continuity of PWV in small-scale and mesoscale weather processes. Furthermore, the 1 h precipitation and the cloud top temperature (ctt) data at the same site were used to demonstrate the effect of PWV on the transit of convective weather systems from different time–space scales. |
| first_indexed | 2024-03-10T09:00:09Z |
| format | Article |
| id | doaj.art-33be2008681c4aaaa1b3a159861e1744 |
| institution | Directory Open Access Journal |
| issn | 2073-4433 |
| language | English |
| last_indexed | 2024-03-10T09:00:09Z |
| publishDate | 2021-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Atmosphere |
| spelling | doaj.art-33be2008681c4aaaa1b3a159861e17442023-11-22T06:48:46ZengMDPI AGAtmosphere2073-44332021-08-01128108510.3390/atmos12081085Analysis of the Precipitable Water Vapor Observation in Yunnan–Guizhou Plateau during the Convective Weather System in SummerHeng Hu0Yunchang Cao1Chuang Shi2Yong Lei3Hao Wen4Hong Liang5Manhong Tu6Xiaomin Wan7Haishen Wang8Jingshu Liang9Panpan Zhao10Meteorological Observation Center, China Meteorological Administration, Beijing 100081, ChinaMeteorological Observation Center, China Meteorological Administration, Beijing 100081, ChinaLaboratory of Navigation and Communication Fusion Technology, Ministry of Industry and Information Technology, Beihang University, Beijing 100191, ChinaMeteorological Observation Center, China Meteorological Administration, Beijing 100081, ChinaMeteorological Observation Center, China Meteorological Administration, Beijing 100081, ChinaMeteorological Observation Center, China Meteorological Administration, Beijing 100081, ChinaMeteorological Observation Center, China Meteorological Administration, Beijing 100081, ChinaNational Meteorological Center, China Meteorological Administration, Beijing 100081, ChinaMeteorological Observation Center, China Meteorological Administration, Beijing 100081, ChinaMeteorological Observation Center, China Meteorological Administration, Beijing 100081, ChinaMeteorological Observation Center, China Meteorological Administration, Beijing 100081, ChinaThe ERA5 reanalysis dataset of the European Center for Medium-Range Weather Forecasts (ECMWF) in the summers from 2015 to 2020 was used to compare and analyze the features of the precipitable water vapor (PWV) observed by six ground-based Global Navigation Satellite System (GNSS) meteorology (GNSS/MET) stations in the Yunnan–Guizhou Plateau. The correlation coefficients of the two datasets ranged between 0.804 and 0.878, the standard deviations ranged between 4.686 and 7.338 mm, and the monthly average deviations ranged between −4.153 and 9.459 mm, which increased with the altitude of the station. Matching the quality-controlled ground precipitation data with the PWV in time and space revealed that most precipitation occurred when the PWV was between 30 and 65 mm and roughly met the normal distribution. We used the vertical integral of divergence of moisture flux (∇<i><sub>p</sub></i>) and S-band Doppler radar networking products combined with the PWV to study the convergence and divergence process and the water vapor delivery conditions during the deep convective weather process from August 24 to 26, 2020, which can be used to analyze the real-time observation capability and continuity of PWV in small-scale and mesoscale weather processes. Furthermore, the 1 h precipitation and the cloud top temperature (ctt) data at the same site were used to demonstrate the effect of PWV on the transit of convective weather systems from different time–space scales.https://www.mdpi.com/2073-4433/12/8/1085deep convective systemprecipitable water vaporERA5 reanalysismoisture flux divergencecloud top temperature |
| spellingShingle | Heng Hu Yunchang Cao Chuang Shi Yong Lei Hao Wen Hong Liang Manhong Tu Xiaomin Wan Haishen Wang Jingshu Liang Panpan Zhao Analysis of the Precipitable Water Vapor Observation in Yunnan–Guizhou Plateau during the Convective Weather System in Summer Atmosphere deep convective system precipitable water vapor ERA5 reanalysis moisture flux divergence cloud top temperature |
| title | Analysis of the Precipitable Water Vapor Observation in Yunnan–Guizhou Plateau during the Convective Weather System in Summer |
| title_full | Analysis of the Precipitable Water Vapor Observation in Yunnan–Guizhou Plateau during the Convective Weather System in Summer |
| title_fullStr | Analysis of the Precipitable Water Vapor Observation in Yunnan–Guizhou Plateau during the Convective Weather System in Summer |
| title_full_unstemmed | Analysis of the Precipitable Water Vapor Observation in Yunnan–Guizhou Plateau during the Convective Weather System in Summer |
| title_short | Analysis of the Precipitable Water Vapor Observation in Yunnan–Guizhou Plateau during the Convective Weather System in Summer |
| title_sort | analysis of the precipitable water vapor observation in yunnan guizhou plateau during the convective weather system in summer |
| topic | deep convective system precipitable water vapor ERA5 reanalysis moisture flux divergence cloud top temperature |
| url | https://www.mdpi.com/2073-4433/12/8/1085 |
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