Deriving a frozen area fraction from Metop ASCAT backscatter based on Sentinel-1

• Main Authors: Bergstedt, H. (Helena), Bartsch, A. (Annett), Neureiter, A. (Anton), Höfler, A. (Angelika), Widhalm, B. (Barbara), Pepin, N. (Nicholas), Hjort, J. (Jan)
• Format: Article in Journal/Newspaper
• Language: English
• Published: Institute of Electrical and Electronics Engineers 2020
• Subjects: Advanced Scatterometer (ASCAT); Sentinel-1; freeze-thaw; permafrost; surface state; The Sentinel; Northern Finland
• Online Access: http://urn.fi/urn:nbn:fi-fe2020101684231

Abstract Surface state data derived from spaceborne microwave sensors with suitable temporal sampling are to date only available in low spatial resolution (25—50 km). Current approaches do not adequately resolve spatial heterogeneity in landscape-scale freeze–thaw processes. We propose to derive a f...