Accuracy Assessment of Tide Models in Terra Nova Bay, East Antarctica, for Glaciological Studies of DDInSAR Technique

摘要: Accuracy assessment of tide models in polar ocean has to be performed accurately analyze tidal response glaciers by using Double-Differential Interferometric SAR (DDInSAR) technique. In this study, we used 120 DDInSAR images generated from 16 one-day tandem COSMOSkyMed DInSAR pairs obtained for 2 years and situ height 11 days measured a pressure type wave recorder assess the accuracy such as TPXO7.1, FES2004, CATS2008a Ross_Inv Terra Nova Bay, East Antarctica. Firstly, compared double-differential (Δ. T) Campbell Glacier Tongue extracted with that predicted models. Tide (T) measurement was We also 24-hours difference (. The root mean square error (RMSE) Δ. T, T .T decreased after inverse barometer effect (IBE)- correction models, which confirmed IBE should corrected requisitely. RMSE Δ.T were smaller than T. This because is during temporal baseline (24 hours), errors sea level tide, constituents S2, K2, K1 P1 canceled. IBE-corrected can It difficult select an optimum model Bay short period. However, could confirm it showed smallest 4.1 cm images.