Impact of Land-Use Change on Winter Precipitation in Hokkaido, Japan
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- Sugimoto Shiori
- Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University
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- Sato Tomonori
- Faculty of Environmental Earth Science, Hokkaido University
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- Sasaki Tomonori
- Graduate School of Environmental Earth Science, Hokkaido University
書誌事項
- 公開日
- 2015
- 資源種別
- journal article
- DOI
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- 10.2151/sola.2015-023
- 公開者
- 公益社団法人 日本気象学会
説明
The effect of historical land-use change on winter precipitation in Hokkaido, Japan is evaluated by sensitivity experiments using a regional climate model and past and current land-use maps. The regional climate model successfully simulates winter precipitation characteristics, such as heavy precipitation in central mountain areas and around the Japan Sea coast, and a gradual decrease in precipitation from west to east. A comparison of model simulations using 1850 and 1985 land-use maps shows that precipitation has decreased approximately 1.7 mm mon-1, especially over deforested areas. This decrease is mainly a result of reduced evapotranspiration (approximately 2.4 mm mon-1) from lower net radiation associated with increased snow cover and higher surface albedo. Meanwhile, precipitation has increased in mountainous areas and on leeward slopes as a result of intensified upward air motion, which is attributed to a decrease in surface roughness caused by deforestation and the strengthening of horizontal wind speeds.
収録刊行物
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- SOLA
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SOLA 11 (0), 95-99, 2015
公益社団法人 日本気象学会
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詳細情報 詳細情報について
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- CRID
- 1390282680199475712
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- NII論文ID
- 130005084041
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- ISSN
- 13496476
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- 本文言語コード
- en
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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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- JaLC
- Crossref
- CiNii Articles
- KAKEN
- OpenAIRE
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- 抄録ライセンスフラグ
- 使用不可
