Improvement of a Cloud Microphysics Scheme for a Global Nonhydrostatic Model Using TRMM and a Satellite Simulator
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- Woosub Roh
- Atmosphere and Ocean Research Institute, University of Tokyo, Tokyo, Japan
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- Masaki Satoh
- Atmosphere and Ocean Research Institute, University of Tokyo, Tokyo, and Japan Agency for Marine-Earth Science and Technology, Yokosuka, Japan
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- Tomoe Nasuno
- Japan Agency for Marine-Earth Science and Technology, Yokosuka, Japan
書誌事項
- 公開日
- 2017-01-01
- 資源種別
- journal article
- 権利情報
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- http://www.ametsoc.org/PUBSReuseLicenses
- DOI
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- 10.1175/jas-d-16-0027.1
- 公開者
- American Meteorological Society
この論文をさがす
説明
<jats:title>Abstract</jats:title> <jats:p>The cloud and precipitation simulated by a global nonhydrostatic model with a 3.5-km horizontal resolution, the Nonhydrostatic Icosahedral Atmospheric Model (NICAM), are evaluated using the Tropical Rainfall Measuring Mission (TRMM) and a satellite simulator. A previous study by Roh and Satoh evaluated the single-moment bulk microphysics and established the modified microphysics scheme for the specific tropical open ocean using a regional version of NICAM. In this study, the authors expanded the evaluation over the entire tropics and parts of the midlatitude areas (20°–36°S, 20°–36°N) using a joint histogram of the cloud-top temperature and precipitation echo-top heights and contoured frequency by altitude diagrams of the deep convective systems. The modified microphysics simulation improves the joint probability density functions of the cloud-top temperatures and precipitation cloud-top heights over not only the tropical ocean but also the land and midlatitude areas. Compared with the default microphysics simulation, the modified microphysics simulation shows a clearer distinction between the land and ocean in the tropics, which is related to the contrast between the shallow and the deep clouds. In addition, the two microphysics simulation methods were also compared over the tropics using joint histograms of the cloud-top and precipitation cloud-top heights on the basis of CloudSat measurements. It was found that the microphysics scheme that was modified for the tropical ocean displayed general cloud and precipitation improvements in the global domain over the tropics.</jats:p>
収録刊行物
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- Journal of the Atmospheric Sciences
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Journal of the Atmospheric Sciences 74 (1), 167-184, 2017-01-01
American Meteorological Society
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詳細情報 詳細情報について
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- CRID
- 1360004236558218496
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- ISSN
- 15200469
- 00224928
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- 資料種別
- journal article
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- データソース種別
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- Crossref
- KAKEN
- OpenAIRE
