Articles | Volume 18, issue 8
https://doi.org/10.5194/tc-18-3723-2024
https://doi.org/10.5194/tc-18-3723-2024
Research article
 | 
20 Aug 2024
Research article |  | 20 Aug 2024

Toward long-term monitoring of regional permafrost thaw with satellite interferometric synthetic aperture radar

Taha Sadeghi Chorsi, Franz J. Meyer, and Timothy H. Dixon

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Cited articles

Alaska Satellite Facility: ASF Data Search, NASA [data set], https://search.asf.alaska.edu/, last access: 10 June 2024. a
Bakian-Dogaheh, K., Chen, R., Moghaddam, M., Yi, Y., and Tabatabaeenejad, A.: ABoVE: Active layer soil characterization of permafrost sites, northern Alaska, 2018, ORNL DAAC [data set], https://doi.org/10.3334/ORNLDAAC/1759, 2020. a
Bakian-Dogaheh, K., Chen, R. H., Yi, Y., Kimball, J. S., Moghaddam, M., and Tabatabaeenejad, A.: A model to characterize soil moisture and organic matter profiles in the permafrost active layer in support of radar remote sensing in Alaskan Arctic tundra, Environ. Res. Lett., 17, 025011, https://doi.org/10.1088/1748-9326/ac4e37, 2022. a, b
Bakian-Dogaheh, K., Chen, R., Yi, Y., Sullivan, T., Michaelides, R., Parsekian, A., Schaefer, K., Tabatabaeenejad, A., Kimball, J., and Moghaddam, M.: Soil Matric Potential, Dielectric, and Physical Properties, Arctic Alaska, 2018, ORNL DAAC [data set], https://doi.org/10.3334/ORNLDAAC/2149, 2023. a
Bartsch, A., Leibman, M., Strozzi, T., Khomutov, A., Widhalm, B., Babkina, E., Mullanurov, D., Ermokhina, K., Kroisleitner, C., and Bergstedt, H.: Seasonal progression of ground displacement identified with satellite radar interferometry and the impact of unusually warm conditions on permafrost at the Yamal Peninsula in 2016, Remote Sens., 11, 1865, https://doi.org/10.3390/rs11161865, 2019. a
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Short summary

The active layer thaws and freezes seasonally. The annual freeze–thaw cycle of the active layer causes significant surface height changes due to the volume difference between ice and liquid water. We estimate the subsidence rate and active-layer thickness (ALT) for part of northern Alaska for summer 2017 to 2022 using interferometric synthetic aperture radar and lidar. ALT estimates range from ~20 cm to larger than 150 cm in area. Subsidence rate varies between close points (2–18 mm per month).

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