Seasonal variation analysis of Greenland ice mass time-series
Journal article, Peer reviewed
Accepted version
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https://hdl.handle.net/11250/3049195Utgivelsesdato
2017Metadata
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Originalversjon
Acta Geodaetica et Geophysica Hungarica. 2017, 53 (1), 1-14. 10.1007/s40328-017-0198-4Sammendrag
We derive the mass balance of Greenland ice sheet from the Gravity Recovery and Climate Experiment (GRACE) for the period January 2003–October 2014. We have found an ice mass loss with peak amplitude of −15 cm/yr in the southeastern and northwestern parts, and an acceleration of −2.5 cm/yr2 in the southwestern region. Global warming is a well-known suspected triggering factor of ice melting. We use MODIS-derived Ice Surface Temperature (IST), and continuous and cross wavelet transforms have been determined to investigate the common power and relative phase between GRACE derived time-series of ice mass changes and IST time-series. Results indicate a high common power between the two time-series for the whole study period, but with different time patterns. Seasonal variation analysis of Greenland ice mass time-series