Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL087917 |
Massive Ice Control on Permafrost Coast Erosion and Sensitivity | |
M. Lim; D. Whalen; J. Martin; P. J. Mann; S. Hayes; P. Fraser; H. B. Berry; D. Ouellette | |
2020-08-21 | |
发表期刊 | Geophysical Research Letters
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出版年 | 2020 |
英文摘要 | High overall rates of permafrost cliff retreat, coupled with spatial variability, have been accompanied by increased uncertainty over future landscape dynamics. We map long‐term (>80 years) retreat of the shoreline and photogrammetrically analyze historic aerial imagery to quantify the processes at a permafrost coast site with massive ground ice. Retreat rates have been relatively constant but topographic changes show that subsidence is a potentially critical but often ignored component of coastal sensitivity, exceeding landward recession by over 3 times during the last 24 years. We calibrate novel passive seismic surveys along clear and variable exposures of massive ground ice and then spatially map key sub‐surface layers. Combining decadal patterns of volumetric change with new ground ice variation maps enables past trends to be interpreted, future volumetric geomorphic behavior to be better constrained, and improves the assessment of permafrost coast sensitivity and the release of carbon‐bearing material. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/291144 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | M. Lim,D. Whalen,J. Martin,et al. Massive Ice Control on Permafrost Coast Erosion and Sensitivity[J]. Geophysical Research Letters,2020. |
APA | M. Lim.,D. Whalen.,J. Martin.,P. J. Mann.,S. Hayes.,...&D. Ouellette.(2020).Massive Ice Control on Permafrost Coast Erosion and Sensitivity.Geophysical Research Letters. |
MLA | M. Lim,et al."Massive Ice Control on Permafrost Coast Erosion and Sensitivity".Geophysical Research Letters (2020). |
条目包含的文件 | 条目无相关文件。 |
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