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Intrastorm variability of the inland and orographic enhancement of a sea-effect snowstorm in the hokuriku region of Japan
https://nied-repo.bosai.go.jp/records/6728
https://nied-repo.bosai.go.jp/records/6728a838c881-2a97-4965-8cdc-f32af3940713
| Item type | researchmap(1) | |||||||||||||
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| 公開日 | 2024-08-19 | |||||||||||||
| タイトル | ||||||||||||||
| 言語 | en | |||||||||||||
| タイトル | Intrastorm variability of the inland and orographic enhancement of a sea-effect snowstorm in the hokuriku region of Japan | |||||||||||||
| 言語 | ||||||||||||||
| 言語 | eng | |||||||||||||
| 著者 |
Peter G. Veals
× Peter G. Veals
× W. James Steenburgh
× Sento Nakai
× Satoru Yamaguchi
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| 抄録 | ||||||||||||||
| 内容記述タイプ | Other | |||||||||||||
| 内容記述 | A prolonged period of winter monsoonal flow brought heavy sea-effect snowfall to the Hokuriku region along the west coast of the Japanese island of Honshu from 2 to 7 February 2010. Snowfall in some locations exceeded 140 cm, but the distribution within the event was highly variable. We examine the factors contributing to these variations using data from a Japan Meteorological Agency (JMA) C-band surveillance radar, JMA soundings, surface precipitation observations, and a Weather Research and Forecasting (WRF) Model simulation. There were three distinct periods during the event. Period 1 featured relatively weak flow with precipitation confined mainly to the coast and lowlands. Precipitation maxima were located where the flow ascended: 1) over terrain-blocked air, 2) at the foot of a high flow-normal barrier, or 3) relatively unimpeded over the lower mountain ranges. Flow strengthened during period 2, yielding stronger vertical velocities over the terrain with precipitation maxima shifting inland and to higher elevation. The flow strengthened further in period 3, with the precipitation maxima shifting higher in elevation and into the lee, with almost no precipitation falling in the lowlands. Thus, greater inland penetration and enhancement of precipitation occurred as the flow speed increased, but additional factors such as the subcloud sublimation of hydrometeors and the convective instability also contribute to differences between periods 2 and 3. These results illustrate the importance of incident flow strength in modulating the distribution and enhancement of snowfall in global lake- and sea-effect regions. | |||||||||||||
| 言語 | en | |||||||||||||
| 書誌情報 |
en : Monthly Weather Review 巻 148, 号 6, p. 2527-2548, 発行日 2020-06-01 |
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| 言語 | en | |||||||||||||
| 出版者 | American Meteorological Society | |||||||||||||
| ISSN | ||||||||||||||
| 収録物識別子タイプ | ISSN | |||||||||||||
| 収録物識別子 | 1520-0493 | |||||||||||||
| DOI | ||||||||||||||
| 関連識別子 | 10.1175/MWR-D-19-0390.1 | |||||||||||||
