P19C bathymetry: ASCII navigation and bathymetry data file was obtained from Frank Delahoyde from ODF on 10/27/98. Depths from ODF were Carter corrected; original PDR data used a 1500 m/sec sound speed. Expocode: 316N138_12 Chief Scientist: Lynne Talley Ship: R/V Knorr Ports: Punta Arenas, Chile to Panama City, Panama Dates: 1993.02.22 - 1993.04.13 "P19C.nav" is the original data, ODF format "P19C_edited.nav" is the edited data, ODF format "p19c_bathy_gdc.dat" is the edited data, GDC format Files updated 7/31/02 LDT ------------------------------------- Ascii Navigation format for the original data "P19C.nav" and "P19C_edited.nav" (one record per line) GMT Julian date (yyddd) GMT time (hhmm) speed (xx.x) knots course (xxx.x) degrees latitude (ddmm.mmm) degrees*100+minutes, "S" negative longitude (ddmm.mmm) degrees*100+minutes, "W" negative depth (dddd) meters Format of the "GDC" format file, "P19C_bathy_gdc.dat" (one record per line): lat (ddddd.mmm) "S" negative lon (ddddd.mmm) "W" negative dpt (dddddd.d) meters imo (ii) month ida (ii) day iyr (ii) year ihr (ii) hour imi (ii) minute ise (ii) second ydat (yyyyddd.hhh) (Julian date in ytk format) ----------------------- Comments on data (Delahoyde, 4/16/02): Bathymetry was hand-digitized from Raytheon 12KHz PDR records. The depths were then Carter-corrected, assuming a 1500 M/S sound velocity. ---- Corrections made to original file: records removed in P19C_edited.nav Dropout (removed lines with 0 depth) 93062 720 89 3548 -5002.330 -8759.836 4813 93062 721 89 3548 -5002.330 -8759.836 0 93062 722 89 3548 -5002.330 -8759.836 0 93062 723 89 3548 -5002.330 -8759.836 0 93062 724 89 3548 -5002.330 -8759.836 0 93062 725 89 3548 -5002.330 -8759.836 4844 Isolated deep point - is this real? deleted 7107 in "corrected" file 93064 1819 54 3396 -4554.617 -8801.502 6342 93064 1820 56 3411 -4554.529 -8801.528 7107 93064 1821 45 3459 -4554.446 -8801.542 6367 Dropout (removed lines with 0 depth) 93065 1900 120 3526 -4452.357 -8759.234 3964 93065 1901 120 3526 -4452.357 -8759.234 0 93065 1902 120 3526 -4452.357 -8759.234 0 93065 1903 120 3526 -4452.357 -8759.234 0 93065 1904 120 3526 -4452.357 -8759.234 0 93065 1905 120 3526 -4452.357 -8759.234 3933 Dropout (removed lines with 0 depth) 93066 705 15 6 -4354.854 -8801.072 3619 93066 706 15 6 -4354.854 -8801.072 0 93066 707 15 6 -4354.854 -8801.072 0 93066 708 15 6 -4354.854 -8801.072 0 93066 709 15 6 -4354.854 -8801.072 0 93066 710 15 6 -4354.854 -8801.072 3690 corrupt record - removed in corrected file 93094 0 85 3163 611.963 -8812.491 3168 93094 0 7 986 0.000 0.000 -11438 93094 1 87 3191 612.075 -8812.585 3167 2 dips probably OK 93091 1723 93 3593 254.081 -8550.068 3034 93091 1724 92 1 254.235 -8550.068 3030 93091 1725 92 4 254.389 -8550.069 3027 93091 1726 93 1 254.544 -8550.069 3214 93091 1727 95 3589 254.703 -8550.075 3405 93091 1728 94 3597 254.861 -8550.077 3596 93091 1729 91 10 255.012 -8550.074 3778 93091 1730 91 2 255.163 -8550.076 3961 93091 1731 93 6 255.319 -8550.075 3773 93091 1732 95 3585 255.479 -8550.084 3580 93091 1733 96 3560 255.640 -8550.100 3386 93091 1734 95 3567 255.799 -8550.109 3194 93091 1735 96 3586 255.959 -8550.111 3002 93091 1736 97 3597 256.122 -8550.111 3001 93091 2044 92 3547 303.177 -8550.679 2943 93091 2045 90 3551 303.324 -8550.692 2932 93091 2046 90 3562 303.473 -8550.704 3130 93091 2047 91 3566 303.626 -8550.714 3334 93091 2048 92 3547 303.780 -8550.731 3540 93091 2049 92 3529 303.933 -8550.754 3745 93091 2050 92 3539 304.087 -8550.770 3951 93091 2051 92 3539 304.240 -8550.788 3745 93091 2052 92 3549 304.394 -8550.802 3538 93091 2053 92 3569 304.548 -8550.810 3333 93091 2054 92 5 304.702 -8550.807 3128 93091 2055 92 18 304.857 -8550.800 2922 93091 2056 91 14 305.010 -8550.798 2919 These look really bad, delete 93095 700 93 3121 730.004 -8938.169 3354 93095 701 93 3120 730.107 -8938.285 2734 93095 702 93 3121 730.210 -8938.401 2115 93095 703 91 3125 730.312 -8938.514 1511 93095 704 89 3124 730.410 -8938.623 925 93095 705 89 3125 730.509 -8938.733 335 93095 706 89 3128 730.610 -8938.844 949 93095 707 88 3134 730.710 -8938.952 1554 93095 708 87 3147 730.812 -8939.054 2145 93095 709 86 3143 730.910 -8939.157 2730 93095 710 87 3131 731.010 -8939.270 3349