Acoustic Mid-Ocean Dynamics Experiment (AMODE), 1991, North Atlantic: High-frequency Baroclinic Mode-1 Amplitudes

<p>A netcdf data file of high-frequency (&gt; 1 cpd) baroclinic mode-1 amplitude in the western North Atlantic derived from ocean acoustic tomography data collected during the Acoustic Mid-Ocean Dynamics Experiment (AMODE) in 1991.&nbsp; AMODE consisted of a pentagonal array of six moored instruments deployed between Puerto Rico and Bermuda.&nbsp; These are baroclinic amplitudes averaged over paths several hundred kilometers long.&nbsp; As documented in:</p> <p>Dushaw, B. D., &amp; Worcester, P. F. (1998). Resonant diurnal internal tides in the North Atlantic. Geophys. Res. Lett., 25 , 2189&ndash;2192. doi: 10.1029/98GL01583</p> <p>Dushaw, B. D., Worcester, P. F., Cornuelle, B. D., Howe, B. M., &amp; Luther, D. S. (1995). Baroclinic and barotropic tides in the central North Pacific Ocean determined from long-range reciprocal acoustic transmissions.J. Phys. Oceanogr.(25), 631&ndash;647.&nbsp; doi: 10.1175/1520-0485(1995)025&lang;0631:<br> BABTIT&rang;2.0.CO;2</p> <p>Dushaw, B. D. (2003). On the mapping and wavenumber resolution of line-integral<br> data for observations of low-mode internal tides. J. Atmos. Oceanic Tech., 20 ,<br> 1043&ndash;1059. doi: 10.1175/1458.1</p> <p>Dushaw, B. D. (2006). Mode-1 internal tides in the western North Atlantic Ocean.<br> Deep-Sea Res. Part I , 53 , 449&ndash;473. doi: 10.1016/j.dsr.2005.12.009</p> <p>Dushaw, B. D., Worcester, P. F., &amp; Dzieciuch, M. A. (2011). On the predictability of mode-1 internal tides. Deep-Sea Res. Part I (58), 677&ndash;698. doi: 10.1016/j.dsr.2011.04.002</p> <p>Dushaw, B. D.&nbsp; (2015).&nbsp; An empirical model for mode-1 internal tides derived from satellite altimetry: Computing accurate tidal predictions at arbitrary points over the world oceans (Tech. Rep. No. Technical Memorandum TM 1-15).&nbsp; Applied Physics Laboratory, University of Washington, Seattle, WA. http://www.apl.washington.edu/project/project.php?id=tm\ 1-15</p> <p>Hendershott, M. (1981). Long waves and ocean tides. In B. A. Warren &amp; C. Wunsch (Eds.), Evolution of physical oceanography: Scientific surveys in honor of Henry Stommel (pp. 292&ndash;341). Cambridge, MA: MIT Press.</p> <p>These data can be used to derive accurate estimate for baroclinic tide amplitudes in the open ocean.&nbsp; The file includes 15 time series of 100 to 300 day record length.&nbsp;</p> <p>The purpose of this upload is to allow others to estimate tides from these data to test baroclinic tidal models.&nbsp; Other than a simple high-pass filter, the time series is unfiltered, but the baroclinic tides account for 30-80% of the variance, depending on the amplitude of the tide on the acoustic path.</p>