Surface towed electromagnetic system for mapping of subsea Arctic permafrost

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• 作者：Dallas Sherman ; ^{jesherma@ucsd.edu} ; Peter Kannberg ; Steven Constable
• 关键词：controlled source electromagnetics ; permafrost ; Arctic hydrology ; gas hydrates
• 刊名：Earth and Planetary Science Letters
• 出版年：2017
• 出版时间：15 February 2017
• 年：2017
• 卷：460
• 期：Complete
• 页码：97-104
• 全文大小：2448 K
• 卷排序：460

文摘

Seafloor resistivity in shallow water can be mapped using a surface-towed array of transmitters and receivers. Offshore permafrost can be mapped using its resistive signature. We find evidence that river outflows can preserve marine permafrost.