Tidal effects on MFP via the INTIMATE'96 test

Abstract

Examining Intimate96 field data we see clearly the effects of tidal changes, i.e., of changing water depths for a bottom-tethered vertical array at mid-frequencies (300 to8 00 Hz). This work will examine the sensitivity of such data via Matched Field Processing (MFP) to tidal changes where the depth varies 1.0m from the nominal of 135 m. Is it possible to invert such data to estimate water depth as a function of time (tides)? Are the data dominated by source range estimates where water depths are known to shift in a predictable fashion as a function of source range errors? Results reported here will be for simulated data.