Aerosol, Clouds and Radiation Interactions in the NCEP Unified Forecast Systems
In this study, we evaluate aerosol, cloud, and radiation interactions in GFS.V17.p8 (Global Forecast System System Version 17 prototype 8). Two experiments were conducted for the summer of 2020. In the control experiment (EXP CTL), aerosols interact with radiation only, incorporating direct and semi...
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MDPI AG
2025-05-01
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| Online Access: | https://www.mdpi.com/2674-0494/4/2/14 |
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| author | Anning Cheng Fanglin Yang |
| author_facet | Anning Cheng Fanglin Yang |
| author_sort | Anning Cheng |
| collection | DOAJ |
| description | In this study, we evaluate aerosol, cloud, and radiation interactions in GFS.V17.p8 (Global Forecast System System Version 17 prototype 8). Two experiments were conducted for the summer of 2020. In the control experiment (EXP CTL), aerosols interact with radiation only, incorporating direct and semi-direct aerosol effects. The sensitivity experiment (EXP ACI) couples aerosols with both radiation and Thompson microphysics, accounting for aerosol indirect effects and fully interactive aerosol–cloud dynamics. Introducing aerosol and cloud interactions results in net cooling at the top of the atmosphere (TOA). Further analysis shows that the EXP ACI produces more liquid water at lower levels and less ice water at higher levels compared to the EXP CTL. The aerosol optical depth (AOD) shows a good linear relationship with cloud droplet number concentration, similar to other climate models, though with larger standard deviations. Including aerosol and cloud interactions generally enhances simulations of the Indian Summer Monsoon, stratocumulus, and diurnal cycles. Additionally, the study evaluates the impacts of aerosols on deep convection and cloud life cycles. |
| format | Article |
| id | doaj-art-c91d1fba7d034a42b92d3f79c02abcaf |
| institution | DOAJ |
| issn | 2674-0494 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Meteorology |
| spelling | doaj-art-c91d1fba7d034a42b92d3f79c02abcaf2025-08-20T03:16:34ZengMDPI AGMeteorology2674-04942025-05-01421410.3390/meteorology4020014Aerosol, Clouds and Radiation Interactions in the NCEP Unified Forecast SystemsAnning Cheng0Fanglin Yang1Environmental Modeling Center, National Centers for Environmental Prediction, National Weather Service, NOAA, College Park, MD 20740, USAEnvironmental Modeling Center, National Centers for Environmental Prediction, National Weather Service, NOAA, College Park, MD 20740, USAIn this study, we evaluate aerosol, cloud, and radiation interactions in GFS.V17.p8 (Global Forecast System System Version 17 prototype 8). Two experiments were conducted for the summer of 2020. In the control experiment (EXP CTL), aerosols interact with radiation only, incorporating direct and semi-direct aerosol effects. The sensitivity experiment (EXP ACI) couples aerosols with both radiation and Thompson microphysics, accounting for aerosol indirect effects and fully interactive aerosol–cloud dynamics. Introducing aerosol and cloud interactions results in net cooling at the top of the atmosphere (TOA). Further analysis shows that the EXP ACI produces more liquid water at lower levels and less ice water at higher levels compared to the EXP CTL. The aerosol optical depth (AOD) shows a good linear relationship with cloud droplet number concentration, similar to other climate models, though with larger standard deviations. Including aerosol and cloud interactions generally enhances simulations of the Indian Summer Monsoon, stratocumulus, and diurnal cycles. Additionally, the study evaluates the impacts of aerosols on deep convection and cloud life cycles.https://www.mdpi.com/2674-0494/4/2/14aerosolcloudand radiation interactionsNWP modelsaerosol direct effectsaerosol indirect effects |
| spellingShingle | Anning Cheng Fanglin Yang Aerosol, Clouds and Radiation Interactions in the NCEP Unified Forecast Systems Meteorology aerosol cloud and radiation interactions NWP models aerosol direct effects aerosol indirect effects |
| title | Aerosol, Clouds and Radiation Interactions in the NCEP Unified Forecast Systems |
| title_full | Aerosol, Clouds and Radiation Interactions in the NCEP Unified Forecast Systems |
| title_fullStr | Aerosol, Clouds and Radiation Interactions in the NCEP Unified Forecast Systems |
| title_full_unstemmed | Aerosol, Clouds and Radiation Interactions in the NCEP Unified Forecast Systems |
| title_short | Aerosol, Clouds and Radiation Interactions in the NCEP Unified Forecast Systems |
| title_sort | aerosol clouds and radiation interactions in the ncep unified forecast systems |
| topic | aerosol cloud and radiation interactions NWP models aerosol direct effects aerosol indirect effects |
| url | https://www.mdpi.com/2674-0494/4/2/14 |
| work_keys_str_mv | AT anningcheng aerosolcloudsandradiationinteractionsinthencepunifiedforecastsystems AT fanglinyang aerosolcloudsandradiationinteractionsinthencepunifiedforecastsystems |