Satellite-based surface flux estimation during Typhoon
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- Tomita Hiroyuki
- Principal Investigator
- 北海道大学
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- 加古 真一郎
- Co-Investigator
- 鹿児島大学
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- 和田 章義
- Co-Investigator
- 気象庁気象研究所
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- 市川 香
- Co-Investigator
- 九州大学
About this project
- Japan Grant Number
- JP18H03737
- Funding Program
- Grants-in-Aid for Scientific Research
- Funding organization
- Japan Society for the Promotion of Science
- Project/Area Number
- 18H03737
- Research Category
- Grant-in-Aid for Scientific Research (A)
- Allocation Type
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- Single-year Grants
- Review Section / Research Field
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- Medium-sized Section 17:Earth and planetary science and related fields
- Research Institution
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- Hokkaido University
- Nagoya University
- Project Period (FY)
- 2018-04-01 〜 2022-03-31
- Project Status
- Completed
- Budget Amount*help
- 35,230,000 Yen (Direct Cost: 27,100,000 Yen Indirect Cost: 8,130,000 Yen)
Research Abstract
An estimation method for surface heat flux during typhoons based on satellite observations has been developed. This has significantly improved estimation during typhoons compared to previous global products. The near-surface air-specific humidity required for estimation can be estimated closer to the center of the typhoon, and it is possible to better capture the characteristics of water vapor concentration near the center of the typhoon. It has become possible to estimate high wind speeds exceeding 30 m/s. The validity of the new method was confirmed by comparison with independent in situ observations. Surface heat fluxes were calculated based on these physical quantity estimates, and a surface flux data set during typhoons was constructed. This dataset makes it possible to quantitatively investigate the change in surface heat flux from the occurrence of a typhoon to its extinction.
Details 詳細情報について
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- CRID
- 1040000781994075008
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- Text Lang
- ja
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- Data Source
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- KAKEN
- IRDB