A Study on the Wide Range of Relative Humidity in Cirrus Clouds Using Large-Ensemble Parcel Model Simulations
This study investigates the possible mechanisms related to the wide range of relative humidity in cirrus clouds (RH<sub>i</sub>). Under the closed adiabatic assumption, the impacts of vertical motion and ice crystal deposition/sublimation on RH<sub>i</sub> are investigated th...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-03-01
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| Series: | Atmosphere |
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| Online Access: | https://www.mdpi.com/2073-4433/14/3/583 |
| _version_ | 1797613534343856128 |
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| author | Miao Zhao Xiangjun Shi |
| author_facet | Miao Zhao Xiangjun Shi |
| author_sort | Miao Zhao |
| collection | DOAJ |
| description | This study investigates the possible mechanisms related to the wide range of relative humidity in cirrus clouds (RH<sub>i</sub>). Under the closed adiabatic assumption, the impacts of vertical motion and ice crystal deposition/sublimation on RH<sub>i</sub> are investigated through in situ observations and parcel model simulations. Vertical motion is an active external force that changes the RH<sub>i</sub>, and ice crystal deposition/sublimation plays a role in mitigating the change in the RH<sub>i</sub>. They are the two most important mechanisms involved in controlling the RH<sub>i</sub> fluctuation during cirrus evolution and could well explain the wide range of RH<sub>i</sub> in wave-related cirrus clouds. Furthermore, a comparison of statistical cloud characteristics from both observations and simulations shows that a very low value (e.g., 0.001) for the water vapor ice deposition coefficient is highly unlikely. |
| first_indexed | 2024-03-11T06:56:06Z |
| format | Article |
| id | doaj.art-087e177a400940e48143e26cf4ea9b31 |
| institution | Directory Open Access Journal |
| issn | 2073-4433 |
| language | English |
| last_indexed | 2024-03-11T06:56:06Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Atmosphere |
| spelling | doaj.art-087e177a400940e48143e26cf4ea9b312023-11-17T09:33:47ZengMDPI AGAtmosphere2073-44332023-03-0114358310.3390/atmos14030583A Study on the Wide Range of Relative Humidity in Cirrus Clouds Using Large-Ensemble Parcel Model SimulationsMiao Zhao0Xiangjun Shi1School of Atmospheric Sciences, Nanjing University of Information Science and Technology, Nanjing 210044, ChinaSchool of Atmospheric Sciences, Nanjing University of Information Science and Technology, Nanjing 210044, ChinaThis study investigates the possible mechanisms related to the wide range of relative humidity in cirrus clouds (RH<sub>i</sub>). Under the closed adiabatic assumption, the impacts of vertical motion and ice crystal deposition/sublimation on RH<sub>i</sub> are investigated through in situ observations and parcel model simulations. Vertical motion is an active external force that changes the RH<sub>i</sub>, and ice crystal deposition/sublimation plays a role in mitigating the change in the RH<sub>i</sub>. They are the two most important mechanisms involved in controlling the RH<sub>i</sub> fluctuation during cirrus evolution and could well explain the wide range of RH<sub>i</sub> in wave-related cirrus clouds. Furthermore, a comparison of statistical cloud characteristics from both observations and simulations shows that a very low value (e.g., 0.001) for the water vapor ice deposition coefficient is highly unlikely.https://www.mdpi.com/2073-4433/14/3/583cirrus cloudsrelative humidityparcel modellarge-ensemble simulations |
| spellingShingle | Miao Zhao Xiangjun Shi A Study on the Wide Range of Relative Humidity in Cirrus Clouds Using Large-Ensemble Parcel Model Simulations Atmosphere cirrus clouds relative humidity parcel model large-ensemble simulations |
| title | A Study on the Wide Range of Relative Humidity in Cirrus Clouds Using Large-Ensemble Parcel Model Simulations |
| title_full | A Study on the Wide Range of Relative Humidity in Cirrus Clouds Using Large-Ensemble Parcel Model Simulations |
| title_fullStr | A Study on the Wide Range of Relative Humidity in Cirrus Clouds Using Large-Ensemble Parcel Model Simulations |
| title_full_unstemmed | A Study on the Wide Range of Relative Humidity in Cirrus Clouds Using Large-Ensemble Parcel Model Simulations |
| title_short | A Study on the Wide Range of Relative Humidity in Cirrus Clouds Using Large-Ensemble Parcel Model Simulations |
| title_sort | study on the wide range of relative humidity in cirrus clouds using large ensemble parcel model simulations |
| topic | cirrus clouds relative humidity parcel model large-ensemble simulations |
| url | https://www.mdpi.com/2073-4433/14/3/583 |
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