Introduction
RTE'87
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AMODE
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Conclusions

 

HOME Barotropic
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Conclusions

• Open ocean, mode-1 internal tides appear to be phase-locked, deterministic,
  predictable, etc.; for the most part
   - accounting for 50-75% of the variance in tomography travel times.

• Diurnal internal tides are interesting and all too often overlooked!

• Mode-1 internal tides have very long decay scales...
  they cross ocean basins? (Decay scales from altimetry are misleading.)

• Egbert&Ray have about 20 GW energy lost from M2 barotropic tide at Hawaii.
   TOPEX/POSEIDON has about 2.5 GW carried away by mode-1 internal tides.
   This weak number is supported by tomography/thermistors (not quantitative yet.)
   1 kW/m × 2×106 m × 2 = 4 GW    ...perhaps × 2 for all modes = 8 GW

• Nearfield has 6-8 GW of energy loss...we are almost in balance...
   Significant additional energy does not appear to be in high modes,
   or in incoherent components of internal tides.

• But work will continue...