Assessing and projecting surface air temperature conditions required to sustain permafrost in Japan
Abstract Permafrost covers a wide area of the Northern Hemisphere, including high-altitude mountainous areas and even at mid-latitudes. There is concern that the thawing of mountain permafrost can cause slope instability and substantially impact alpine ecosystems, and because permafrost in mountaino...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2022-08-01
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| Series: | Progress in Earth and Planetary Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s40645-022-00498-z |
| _version_ | 1817968104680980480 |
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| author | Tokuta Yokohata Go Iwahana Kazuyuki Saito Noriko N. Ishizaki Taiga Matsushita Tetsuo Sueyoshi |
| author_facet | Tokuta Yokohata Go Iwahana Kazuyuki Saito Noriko N. Ishizaki Taiga Matsushita Tetsuo Sueyoshi |
| author_sort | Tokuta Yokohata |
| collection | DOAJ |
| description | Abstract Permafrost covers a wide area of the Northern Hemisphere, including high-altitude mountainous areas and even at mid-latitudes. There is concern that the thawing of mountain permafrost can cause slope instability and substantially impact alpine ecosystems, and because permafrost in mountainous areas is difficult to observe, detailed analyses have not been performed on its current distribution and future changes. Although previous studies have observed permafrost only at a limited number of points in Japan (e.g., Daisetsu Mountains, Mt. Fuji, and Mt. Tateyama in the Northern Japan Alps), we show that permafrost potentially exists in nine domains in Japan (Daisetsu Mountains, Mt. Fuji, Northern and Southern Japan Alps, Hidaka Mountains, Mt. Shiretokodake, Sharidake, Akandake, and Yotei). In the Daisetsu Mountains and Mt. Fuji, the environmental conditions required for maintaining at least some permafrost are projected to remain in the future if a decarbonized society is achieved (RCP2.6 or RCP4.5). However, if greenhouse gas emissions continue to increase (RCP8.5), the environmental conditions required for sustaining permafrost are projected to disappear in the second half of the twenty-first century. In other domains, the environmental conditions required for maintaining permafrost are either projected to disappear in the next ten years (Hidaka Mountains, Northern Japan Alps) or they have almost disappeared already (Southern Japan Alps, Mt. Shiretokodake, Sharidake, Akandake, and Yotei). Our projections show that climate change has a tremendous impact on Japan's mountain permafrost environment and suggests the importance of monitoring the mountain environment and considering measures for adapting to future climate change. |
| first_indexed | 2024-04-13T20:04:39Z |
| format | Article |
| id | doaj.art-fc296f6c180d4646b96e75a70a063551 |
| institution | Directory Open Access Journal |
| issn | 2197-4284 |
| language | English |
| last_indexed | 2024-04-13T20:04:39Z |
| publishDate | 2022-08-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Progress in Earth and Planetary Science |
| spelling | doaj.art-fc296f6c180d4646b96e75a70a0635512022-12-22T02:32:06ZengSpringerOpenProgress in Earth and Planetary Science2197-42842022-08-019111010.1186/s40645-022-00498-zAssessing and projecting surface air temperature conditions required to sustain permafrost in JapanTokuta Yokohata0Go Iwahana1Kazuyuki Saito2Noriko N. Ishizaki3Taiga Matsushita4Tetsuo Sueyoshi5Earth System Division, National Institute for Environmental StudiesInternational Arctic Research Center, University of Alaska FairbanksResearch Institute for Global Change, Japan Agency for Marine-Earth Science and TechnologyEarth System Division, National Institute for Environmental StudiesFaculty of Life and Environmental Sciences, University of TsukubaResearch Institute for Global Change, Japan Agency for Marine-Earth Science and TechnologyAbstract Permafrost covers a wide area of the Northern Hemisphere, including high-altitude mountainous areas and even at mid-latitudes. There is concern that the thawing of mountain permafrost can cause slope instability and substantially impact alpine ecosystems, and because permafrost in mountainous areas is difficult to observe, detailed analyses have not been performed on its current distribution and future changes. Although previous studies have observed permafrost only at a limited number of points in Japan (e.g., Daisetsu Mountains, Mt. Fuji, and Mt. Tateyama in the Northern Japan Alps), we show that permafrost potentially exists in nine domains in Japan (Daisetsu Mountains, Mt. Fuji, Northern and Southern Japan Alps, Hidaka Mountains, Mt. Shiretokodake, Sharidake, Akandake, and Yotei). In the Daisetsu Mountains and Mt. Fuji, the environmental conditions required for maintaining at least some permafrost are projected to remain in the future if a decarbonized society is achieved (RCP2.6 or RCP4.5). However, if greenhouse gas emissions continue to increase (RCP8.5), the environmental conditions required for sustaining permafrost are projected to disappear in the second half of the twenty-first century. In other domains, the environmental conditions required for maintaining permafrost are either projected to disappear in the next ten years (Hidaka Mountains, Northern Japan Alps) or they have almost disappeared already (Southern Japan Alps, Mt. Shiretokodake, Sharidake, Akandake, and Yotei). Our projections show that climate change has a tremendous impact on Japan's mountain permafrost environment and suggests the importance of monitoring the mountain environment and considering measures for adapting to future climate change.https://doi.org/10.1186/s40645-022-00498-zMountain permafrostClimate changeFuture projections |
| spellingShingle | Tokuta Yokohata Go Iwahana Kazuyuki Saito Noriko N. Ishizaki Taiga Matsushita Tetsuo Sueyoshi Assessing and projecting surface air temperature conditions required to sustain permafrost in Japan Progress in Earth and Planetary Science Mountain permafrost Climate change Future projections |
| title | Assessing and projecting surface air temperature conditions required to sustain permafrost in Japan |
| title_full | Assessing and projecting surface air temperature conditions required to sustain permafrost in Japan |
| title_fullStr | Assessing and projecting surface air temperature conditions required to sustain permafrost in Japan |
| title_full_unstemmed | Assessing and projecting surface air temperature conditions required to sustain permafrost in Japan |
| title_short | Assessing and projecting surface air temperature conditions required to sustain permafrost in Japan |
| title_sort | assessing and projecting surface air temperature conditions required to sustain permafrost in japan |
| topic | Mountain permafrost Climate change Future projections |
| url | https://doi.org/10.1186/s40645-022-00498-z |
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