2022
DOI: 10.3390/su142416899
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Spatial–Temporal Characteristics of Freezing/Thawing Index and Permafrost Distribution in Heilongjiang Province, China

Abstract: Under the trend of climate warming, the high-latitude permafrost in Heilongjiang Province is becoming seriously degraded. The question of how to quantitatively analyze the spatial and temporal trends of multi-year permafrost has become fundamental for current permafrost research. In this study, the temporal and spatial variations of annual mean air temperature (MAAT), annual mean ground temperature (MAGST) and freezing/thawing index based on air and surface temperature data from 34 meteorological stations in H… Show more

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Cited by 4 publications
(1 citation statement)
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“…Typically, the refreezing time of pile foundation is usually more than 100 days. Song et al 51 and Ketil et al 52 investigated the rate of ground temperature change in frozen soil. The findings reveal that the change rate of temperature difference between pile and soil is slow after the pile foundation in permafrost region is refrozen, and the change rate is usually 0.1–0.2 °C per decade.…”
Section: Resultsmentioning
confidence: 99%
“…Typically, the refreezing time of pile foundation is usually more than 100 days. Song et al 51 and Ketil et al 52 investigated the rate of ground temperature change in frozen soil. The findings reveal that the change rate of temperature difference between pile and soil is slow after the pile foundation in permafrost region is refrozen, and the change rate is usually 0.1–0.2 °C per decade.…”
Section: Resultsmentioning
confidence: 99%