论文信息 - Retrieval of permafrost active layer properties using P-band airmoss and L-band UAVSAR data

Retrieval of permafrost active layer properties using P-band airmoss and L-band UAVSAR data

In this paper, a dual-frequency permafrost active layer thickness (ALT) retrieval algorithm is presented wherein P-band AirMOSS and L-band UAVSAR data are used to retrieve the layered soil dielectric constants and layer thicknesses. Using the known radar calibration accuracy, radar sensing depth is defined to help understand the limit of radar backscatter sensitivity to subsurface soil conditions and used as a consistency check when determining ALT. Retrieved maps of soil dielectric constants and layer thicknesses show high spatial correlation with the vegetation type and organic layer thickness. It is shown that the retrieval accuracy for ALT is between 5 cm and 14 cm when the ALT is smaller than the sensing depth.

Mahta Moghaddam | Alireza Tabatabaeenejad | Richard H. Chen

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