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Land, Volume 10, Issue 1

2021 January - 90 articles

Cover Story: Climate change and land exploitation alter the Arctic tundra landscape through an increase in the thickness of seasonally freezing and thawing layer (active layer) and ground-surface deformation due to ground ice melting (thermokarst). In the cover photo, a thermokarst area with small thaw lakes triggered by road maintenance activities for the Dalton Highway is invading intact tundra. Our repeated field surveys of high-precision GNSS revealed spatiotemporal variations in the seasonal thaw settlement (STS) and thaw depth (TD) in intact and disturbed tundra. Weak or moderate correlation between STS and TD found at the intact sites became obscure as the thermokarst disturbance progressed, leading to higher uncertainty in the prediction of TD from remotely measured STS. View this paper
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Land - ISSN 2073-445X
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