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Stem volume retrieval with spaceborne L-band repeat-pass coherence: multi-temporal combination for boreal forest

In this paper retrieval of stem volume from JERS-1 repeat-pass interferometric coherence is demonstrated for five large forest areas in central Siberia. A method for multi-temporal combination of the retrieved stem volumes from several coherence images is applied. Compared to the best results from single coherence images the retrieval accuracy is in most cases significantly improved by the multi-temporal combination. The obtained multi-temporal relative retrieval accuracy is in the range 35 - 39% for four of five areas. The best RMSE is 54 m 3 /ha.