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DOI | 10.1029/2019JD031413 |
Simulations of Winter Arctic Clouds and Associated Radiation Fluxes Using Different Cloud Microphysics Schemes in the Polar WRF: Comparisons With CloudSat, CALIPSO, and CERES | |
Cho, Heeje1,2; Jun, Sang-Yoon2; Ho, Chang-Hoi1,3; McFarquhar, Greg4,5 | |
2020-01-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2020 |
卷号 | 125期号:2 |
文章类型 | Article |
语种 | 英语 |
国家 | South Korea; USA |
英文摘要 | Arctic cloud simulations of the polar-optimized version of the Weather Research and Forecasting model (Polar WRF) were compared with retrievals using the CloudSat and Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation measurements. For the period from 1 December 2015 to 31 January 2016, a series of 24-to 48-hr simulations initialized daily at 00 UTC were examined. In particular, two cloud microphysics schemes, the Morrison double moment and the WRF single-moment 6-class (WSM6), were tested. The modeled cloud top heights had a correlation coefficient (r) of 0.69-0.72 with those from satellite retrievals, and a mean bias of less than 400 m. For the mean ice water content profile and mixed-phase cloud occurrence, the Morrison scheme's clouds were in better agreement with satellite retrievals than the WSM6. However, the use of the Morrison scheme resulted in underestimates of outgoing longwave radiation by -11.7 W m(-2) compared to satellite observations. The bias was reduced to -0.4 W m(-2) with the WSM6 which produced a stronger precipitation rate (by 10%) resulting in a drier and less-cloudy atmosphere. This also leads to the 7-Wm(-2) mean difference in the surface downward longwave radiation (DLR) between the schemes, which is large enough to explain the spread of the Arctic DLR in the current climate models. However, as the temporal variation in DLR showed good agreement with ground observations (r: 0.68-0.92), it is concluded that the Polar WRF can be useful for studying cloud effects on the winter Arctic surface climate. Plain Language Summary Clouds are important for the Arctic climate, but simulating such clouds with numerical models is still challenging. The accuracy of model clouds has not been sufficiently examined due to the harsh Arctic environment obstructing cloud observations, especially during Arctic winters experiencing polar nights. This study compares the Arctic winter clouds simulated by a weather forecast model to cloud observations from active (lidar and radar) satellite instruments. The model successfully produced cloud patterns similar to the satellite observations. However, the choice of the cloud physics module in the model can modify the amount of cloud water significantly enough to affect the simulated surface climate. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000521080000024 |
WOS关键词 | HORIZONTAL RESOLUTION ; GENERAL-CIRCULATION ; VERTICAL STRUCTURE ; CLIMATE FEEDBACKS ; PARAMETERIZATION ; SENSITIVITY ; CONVECTION ; ENSEMBLE ; MODELS ; LINE |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/280014 |
专题 | 气候变化 |
作者单位 | 1.Seoul Natl Univ, Computat Sci & Technol, Seoul, South Korea; 2.Korea Polar Res Inst, Incheon, South Korea; 3.Seoul Natl Univ, Sch Earth & Environm Sci, Seoul, South Korea; 4.Univ Oklahoma, Cooperat Inst Mesoscale Meteorol Studies, Norman, OK 73019 USA; 5.Univ Oklahoma, Sch Meteorol, Norman, OK 73019 USA |
推荐引用方式 GB/T 7714 | Cho, Heeje,Jun, Sang-Yoon,Ho, Chang-Hoi,et al. Simulations of Winter Arctic Clouds and Associated Radiation Fluxes Using Different Cloud Microphysics Schemes in the Polar WRF: Comparisons With CloudSat, CALIPSO, and CERES[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2020,125(2). |
APA | Cho, Heeje,Jun, Sang-Yoon,Ho, Chang-Hoi,&McFarquhar, Greg.(2020).Simulations of Winter Arctic Clouds and Associated Radiation Fluxes Using Different Cloud Microphysics Schemes in the Polar WRF: Comparisons With CloudSat, CALIPSO, and CERES.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,125(2). |
MLA | Cho, Heeje,et al."Simulations of Winter Arctic Clouds and Associated Radiation Fluxes Using Different Cloud Microphysics Schemes in the Polar WRF: Comparisons With CloudSat, CALIPSO, and CERES".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 125.2(2020). |
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