10-20-08  -  BEMPEX Bottom Pressure Tides  -  D. Luther, A. Chave & J. Filloux

Filloux et al. (1991) published tide constants from the BEMPEX Pb data, but I found they were inaccurate when I did my own calculation. My constants, estimated back in 1991, are presented below. However, I now believe that even these could be better. The modified T-Tide program I used on the HOME Pb data produces what I think are more accurate constituents than the harmonic analysis method I used back in the '90's. In the near future, I'll re-run the BEMPEX data through the new program.
     Note that the constituent amplitudes below are in millibars. When I do the re-run with T-Tide, I'll convert to cms. All records were approximately 10 months long.

Filloux, J.H., D.S. Luther and A.D. Chave, 1991: Update on seafloor pressure and electric field observations from the north-central and northeastern Pacific: Tides, infratidal fluctuations, and barotropic flow, In: Tidal Hydrodynamics, Bruce Parker (Ed.), John Wiley & Sons, New York, pp. 617-639.

Station
______________________________________________________________________________
|       |           |         |   95%   |          |    95%      |           |
|  tide |    freq   |  amp    | amp_err |   phase  | phase error |    SNR    |
|       |   (cph)   |  (mb)   |   (mb)  |  G (deg) |    (deg)    |           |
______________________________________________________________________________
|       |           |         |         |          |             |           |

PC 
|  Q1   | 0.0372185 |   2.60  |not avail|   269    |  not avail  | not avail |
|  O1   | 0.0387307 |  14.05  |not avail|   273    |  not avail  | not avail |
|  P1   | 0.0415526 |   6.85  |not avail|   281    |  not avail  | not avail |
|  K1   | 0.0417807 |  20.70  |not avail|   283    |  not avail  | not avail |
|  N2   | 0.0789992 |   4.86  |not avail|   314    |  not avail  | not avail |
|  M2   | 0.0805114 |  19.19  |not avail|   322    |  not avail  | not avail |
|  S2   | 0.0833333 |  10.39  |not avail|   324    |  not avail  | not avail |
|  K2   | 0.0835615 |   2.83  |not avail|   324    |  not avail  | not avail |

PH 
|  Q1   | 0.0372185 |   2.91  |not avail|   253    |  not avail  | not avail |
|  O1   | 0.0387307 |  17.11  |not avail|   259    |  not avail  | not avail |
|  P1   | 0.0415526 |   8.77  |not avail|   269    |  not avail  | not avail |
|  K1   | 0.0417807 |  26.50  |not avail|   271    |  not avail  | not avail |
|  N2   | 0.0789992 |   7.32  |not avail|   286    |  not avail  | not avail |
|  M2   | 0.0805114 |  35.56  |not avail|   300    |  not avail  | not avail |
|  S2   | 0.0833333 |  15.57  |not avail|   322    |  not avail  | not avail |
|  K2   | 0.0835615 |   4.24  |not avail|   324    |  not avail  | not avail |

PD
|  Q1   | 0.0372185 |   2.65  |not avail|   243    |  not avail  | not avail |
|  O1   | 0.0387307 |  15.51  |not avail|   248    |  not avail  | not avail |
|  P1   | 0.0415526 |   8.13  |not avail|   257    |  not avail  | not avail |
|  K1   | 0.0417807 |  24.56  |not avail|   260    |  not avail  | not avail |
|  N2   | 0.0789992 |   6.50  |not avail|   277    |  not avail  | not avail |
|  M2   | 0.0805114 |  34.34  |not avail|   291    |  not avail  | not avail |
|  S2   | 0.0833333 |  15.19  |not avail|   319    |  not avail  | not avail |
|  K2   | 0.0835615 |   4.14  |not avail|   322    |  not avail  | not avail |

Station
______________________________________________________________________________
|       |           |         |   95%   |          |    95%      |           |
|  tide |    freq   |  amp    | amp_err |   phase  | phase error |    SNR    |
|       |   (cph)   |  (mb)   |   (mb)  |  G (deg) |    (deg)    |           |
______________________________________________________________________________
|       |           |         |         |          |             |           |

PF 
|  Q1   | 0.0372185 |   2.32  |not avail|   250    |  not avail  | not avail |
|  O1   | 0.0387307 |  13.54  |not avail|   255    |  not avail  | not avail |
|  P1   | 0.0415526 |   6.96  |not avail|   264    |  not avail  | not avail |
|  K1   | 0.0417807 |  21.05  |not avail|   265    |  not avail  | not avail |
|  N2   | 0.0789992 |   5.11  |not avail|   295    |  not avail  | not avail |
|  M2   | 0.0805114 |  25.18  |not avail|   306    |  not avail  | not avail |
|  S2   | 0.0833333 |  13.04  |not avail|   323    |  not avail  | not avail |
|  K2   | 0.0835615 |   3.55  |not avail|   325    |  not avail  | not avail |

PK 
|  Q1   | 0.0372185 |   2.10  |not avail|   252    |  not avail  | not avail |
|  O1   | 0.0387307 |  12.30  |not avail|   256    |  not avail  | not avail |
|  P1   | 0.0415526 |   6.29  |not avail|   264    |  not avail  | not avail |
|  K1   | 0.0417807 |  19.02  |not avail|   265    |  not avail  | not avail |
|  N2   | 0.0789992 |   4.43  |not avail|   303    |  not avail  | not avail |
|  M2   | 0.0805114 |  21.07  |not avail|   310    |  not avail  | not avail |
|  S2   | 0.0833333 |  11.48  |not avail|   324    |  not avail  | not avail |
|  K2   | 0.0835615 |   3.13  |not avail|   326    |  not avail  | not avail |