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are becoming widely used for Lagrangian observations beyond the surfzone. Near the coast, it is possible to reduce position errors down to 0.1 m by using the differential GPS, which relies on land-based reference stations to estimate the difference between their fixed positions and the GPS measurements. Recent modeling-based ( Haza et al. 2012 ) and analytical ( Piterbarg 2012 ) studies have increased awareness of the significant effect of stochasticity produced by position uncertainty on relative
are becoming widely used for Lagrangian observations beyond the surfzone. Near the coast, it is possible to reduce position errors down to 0.1 m by using the differential GPS, which relies on land-based reference stations to estimate the difference between their fixed positions and the GPS measurements. Recent modeling-based ( Haza et al. 2012 ) and analytical ( Piterbarg 2012 ) studies have increased awareness of the significant effect of stochasticity produced by position uncertainty on relative
