Study on a Large-Scale Persistent Strong Dense Fog Event in Central and Eastern China
A large-scale persistent strong dense fog (SDF) event that occurred from December 30, 2016, to January 5, 2017, in central and eastern China is analyzed by using a variety of data, including high-resolution satellite and surface observations, meteorological tower observations, fine-resolution soundi...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2020-01-01
|
| Series: | Advances in Meteorology |
| Online Access: | http://dx.doi.org/10.1155/2020/8872334 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832546946203516928 |
|---|---|
| author | Hongbin Wang Zhiwei Zhang Duanyang Liu Yuying Zhu Xuerong Zhang Chengsong Yuan |
| author_facet | Hongbin Wang Zhiwei Zhang Duanyang Liu Yuying Zhu Xuerong Zhang Chengsong Yuan |
| author_sort | Hongbin Wang |
| collection | DOAJ |
| description | A large-scale persistent strong dense fog (SDF) event that occurred from December 30, 2016, to January 5, 2017, in central and eastern China is analyzed by using a variety of data, including high-resolution satellite and surface observations, meteorological tower observations, fine-resolution sounding observations, and NCEP/NCAR reanalysis data. The results show the following: (1) The SDF event has the characteristics of long duration, wide influence range, large intensity, and serious air pollution. During the study period, there are 531 stations with SDF events, covering an area of over 360,000 km2. There were five stations in Hebei province where the fog lasted for more than 77 hours, and even some stations did not dissipate during the day. (2) Radiation fog and advection fog alternate in this SDF event, namely, radiation fog (20:00 BT on December 30 to 14:00 on January 1), advection radiation fog (20:00 on January 1 to 08:00 on January 2), radiation fog (night on January 2 to daytime on January 3), and advection radiation fog (night on January 3 to January 5). The characteristic of radiation fog is that the central and eastern part of China was controlled by “L” type high pressure. In the stage of advection radiation fog, the combined effect of weak cold advection and radiation cooling leads to the occurrence of SDF. (3) Regarding the duration of the fog event, the inversion structure is continuously maintained at night and in the morning near the stratum, and when the fog intensity is strong, the inversion intensity is correspondingly large, the fog top is lower than the inversion layer top, and the top of the SDF is between 80 and 400 meters. |
| format | Article |
| id | doaj-art-66c9425fa5ae478abc483e39c5e85589 |
| institution | Kabale University |
| issn | 1687-9309 1687-9317 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Meteorology |
| spelling | doaj-art-66c9425fa5ae478abc483e39c5e855892025-02-03T06:46:34ZengWileyAdvances in Meteorology1687-93091687-93172020-01-01202010.1155/2020/88723348872334Study on a Large-Scale Persistent Strong Dense Fog Event in Central and Eastern ChinaHongbin Wang0Zhiwei Zhang1Duanyang Liu2Yuying Zhu3Xuerong Zhang4Chengsong Yuan5Key Laboratory of Transportation Meteorology, CMA, Nanjing 210009, ChinaKey Laboratory of Transportation Meteorology, CMA, Nanjing 210009, ChinaKey Laboratory of Transportation Meteorology, CMA, Nanjing 210009, ChinaKey Laboratory of Transportation Meteorology, CMA, Nanjing 210009, ChinaKey Laboratory of Transportation Meteorology, CMA, Nanjing 210009, ChinaKey Laboratory of Transportation Meteorology, CMA, Nanjing 210009, ChinaA large-scale persistent strong dense fog (SDF) event that occurred from December 30, 2016, to January 5, 2017, in central and eastern China is analyzed by using a variety of data, including high-resolution satellite and surface observations, meteorological tower observations, fine-resolution sounding observations, and NCEP/NCAR reanalysis data. The results show the following: (1) The SDF event has the characteristics of long duration, wide influence range, large intensity, and serious air pollution. During the study period, there are 531 stations with SDF events, covering an area of over 360,000 km2. There were five stations in Hebei province where the fog lasted for more than 77 hours, and even some stations did not dissipate during the day. (2) Radiation fog and advection fog alternate in this SDF event, namely, radiation fog (20:00 BT on December 30 to 14:00 on January 1), advection radiation fog (20:00 on January 1 to 08:00 on January 2), radiation fog (night on January 2 to daytime on January 3), and advection radiation fog (night on January 3 to January 5). The characteristic of radiation fog is that the central and eastern part of China was controlled by “L” type high pressure. In the stage of advection radiation fog, the combined effect of weak cold advection and radiation cooling leads to the occurrence of SDF. (3) Regarding the duration of the fog event, the inversion structure is continuously maintained at night and in the morning near the stratum, and when the fog intensity is strong, the inversion intensity is correspondingly large, the fog top is lower than the inversion layer top, and the top of the SDF is between 80 and 400 meters.http://dx.doi.org/10.1155/2020/8872334 |
| spellingShingle | Hongbin Wang Zhiwei Zhang Duanyang Liu Yuying Zhu Xuerong Zhang Chengsong Yuan Study on a Large-Scale Persistent Strong Dense Fog Event in Central and Eastern China Advances in Meteorology |
| title | Study on a Large-Scale Persistent Strong Dense Fog Event in Central and Eastern China |
| title_full | Study on a Large-Scale Persistent Strong Dense Fog Event in Central and Eastern China |
| title_fullStr | Study on a Large-Scale Persistent Strong Dense Fog Event in Central and Eastern China |
| title_full_unstemmed | Study on a Large-Scale Persistent Strong Dense Fog Event in Central and Eastern China |
| title_short | Study on a Large-Scale Persistent Strong Dense Fog Event in Central and Eastern China |
| title_sort | study on a large scale persistent strong dense fog event in central and eastern china |
| url | http://dx.doi.org/10.1155/2020/8872334 |
| work_keys_str_mv | AT hongbinwang studyonalargescalepersistentstrongdensefogeventincentralandeasternchina AT zhiweizhang studyonalargescalepersistentstrongdensefogeventincentralandeasternchina AT duanyangliu studyonalargescalepersistentstrongdensefogeventincentralandeasternchina AT yuyingzhu studyonalargescalepersistentstrongdensefogeventincentralandeasternchina AT xuerongzhang studyonalargescalepersistentstrongdensefogeventincentralandeasternchina AT chengsongyuan studyonalargescalepersistentstrongdensefogeventincentralandeasternchina |