Analysis of the Microphysical Structure and Evolution Characteristics of a Typical Sea Fog Weather Event in the Eastern Sea of China
This study is the first to use the observation data of a fog monitor, a visibility meter, and an automatic weather station to carry out a comprehensive observation experiment from the perspective of microphysics on a severe sea fog process in Beilun District, China, from 14 to 15 June 2021. The resu...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-11-01
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| Series: | Remote Sensing |
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| Online Access: | https://www.mdpi.com/2072-4292/14/21/5604 |
| _version_ | 1797466562493415424 |
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| author | Jianxin He Xinyue Ren Hao Wang Zhao Shi Fugui Zhang Lijun Hu Qiangyu Zeng Xin Jin |
| author_facet | Jianxin He Xinyue Ren Hao Wang Zhao Shi Fugui Zhang Lijun Hu Qiangyu Zeng Xin Jin |
| author_sort | Jianxin He |
| collection | DOAJ |
| description | This study is the first to use the observation data of a fog monitor, a visibility meter, and an automatic weather station to carry out a comprehensive observation experiment from the perspective of microphysics on a severe sea fog process in Beilun District, China, from 14 to 15 June 2021. The results show the following: (1) Temperature is closely related to nucleation, condensation growth, and other processes. The decrease (increase) in temperature is the main reason for the enhancement (weakening) of nucleation and the growth of condensation (evaporation of droplets), which leads to an increase (or decrease) in microphysical quantities, such as droplet number concentration and liquid water content. (2) The average droplet number spectral distribution roughly conforms to the Gamma distribution, and the spectral distribution of the fog process presents a ”multi-peak” structure, with peak diameters of 6 μm, 12 μm, 16 μm, 24 μm, and 44 μm. Droplets with a diameter of less than 16 μm account for 75% of the droplet size distribution. (3) During this sea fog process, three microphysical parameters, namely, number concentration, liquid water content, and average diameter, are all positively correlated in pairs, but the positive correlation between the number concentration and the average diameter is weak. This shows that the condensation nucleation and the condensation growth of droplets are the main processes in this sea fog process and that the collision process occurs but is not the dominant process. The sea fog comprehensive observation experiment provides an important demonstration of the microphysics research of sea fog in the eastern coastal areas of China and provides more reference information for sea fog research and equipment comparisons between different regions. At the same time, it also provides an essential scientific basis for the short-term forecast of sea fog in the future and for the optimization of the microphysical parameters of related models. |
| first_indexed | 2024-03-09T18:41:33Z |
| format | Article |
| id | doaj.art-e8f100b298af4025b37c0f0568cdfa4b |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-09T18:41:33Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-e8f100b298af4025b37c0f0568cdfa4b2023-11-24T06:41:44ZengMDPI AGRemote Sensing2072-42922022-11-011421560410.3390/rs14215604Analysis of the Microphysical Structure and Evolution Characteristics of a Typical Sea Fog Weather Event in the Eastern Sea of ChinaJianxin He0Xinyue Ren1Hao Wang2Zhao Shi3Fugui Zhang4Lijun Hu5Qiangyu Zeng6Xin Jin7College of Atmospheric Sounding, Chengdu University of Information Technology, Chengdu 610225, ChinaCollege of Atmospheric Sounding, Chengdu University of Information Technology, Chengdu 610225, ChinaCollege of Atmospheric Sounding, Chengdu University of Information Technology, Chengdu 610225, ChinaCollege of Atmospheric Sounding, Chengdu University of Information Technology, Chengdu 610225, ChinaCollege of Atmospheric Sounding, Chengdu University of Information Technology, Chengdu 610225, ChinaNingbo Meteorological Network and Equipment Support Center, Ningbo 315012, ChinaCollege of Atmospheric Sounding, Chengdu University of Information Technology, Chengdu 610225, ChinaCollege of Atmospheric Sounding, Chengdu University of Information Technology, Chengdu 610225, ChinaThis study is the first to use the observation data of a fog monitor, a visibility meter, and an automatic weather station to carry out a comprehensive observation experiment from the perspective of microphysics on a severe sea fog process in Beilun District, China, from 14 to 15 June 2021. The results show the following: (1) Temperature is closely related to nucleation, condensation growth, and other processes. The decrease (increase) in temperature is the main reason for the enhancement (weakening) of nucleation and the growth of condensation (evaporation of droplets), which leads to an increase (or decrease) in microphysical quantities, such as droplet number concentration and liquid water content. (2) The average droplet number spectral distribution roughly conforms to the Gamma distribution, and the spectral distribution of the fog process presents a ”multi-peak” structure, with peak diameters of 6 μm, 12 μm, 16 μm, 24 μm, and 44 μm. Droplets with a diameter of less than 16 μm account for 75% of the droplet size distribution. (3) During this sea fog process, three microphysical parameters, namely, number concentration, liquid water content, and average diameter, are all positively correlated in pairs, but the positive correlation between the number concentration and the average diameter is weak. This shows that the condensation nucleation and the condensation growth of droplets are the main processes in this sea fog process and that the collision process occurs but is not the dominant process. The sea fog comprehensive observation experiment provides an important demonstration of the microphysics research of sea fog in the eastern coastal areas of China and provides more reference information for sea fog research and equipment comparisons between different regions. At the same time, it also provides an essential scientific basis for the short-term forecast of sea fog in the future and for the optimization of the microphysical parameters of related models.https://www.mdpi.com/2072-4292/14/21/5604sea fogmicrophysical structuremicrophysical correlationdroplet spectral distribution |
| spellingShingle | Jianxin He Xinyue Ren Hao Wang Zhao Shi Fugui Zhang Lijun Hu Qiangyu Zeng Xin Jin Analysis of the Microphysical Structure and Evolution Characteristics of a Typical Sea Fog Weather Event in the Eastern Sea of China Remote Sensing sea fog microphysical structure microphysical correlation droplet spectral distribution |
| title | Analysis of the Microphysical Structure and Evolution Characteristics of a Typical Sea Fog Weather Event in the Eastern Sea of China |
| title_full | Analysis of the Microphysical Structure and Evolution Characteristics of a Typical Sea Fog Weather Event in the Eastern Sea of China |
| title_fullStr | Analysis of the Microphysical Structure and Evolution Characteristics of a Typical Sea Fog Weather Event in the Eastern Sea of China |
| title_full_unstemmed | Analysis of the Microphysical Structure and Evolution Characteristics of a Typical Sea Fog Weather Event in the Eastern Sea of China |
| title_short | Analysis of the Microphysical Structure and Evolution Characteristics of a Typical Sea Fog Weather Event in the Eastern Sea of China |
| title_sort | analysis of the microphysical structure and evolution characteristics of a typical sea fog weather event in the eastern sea of china |
| topic | sea fog microphysical structure microphysical correlation droplet spectral distribution |
| url | https://www.mdpi.com/2072-4292/14/21/5604 |
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