P17N bathymetry: ASCII navigation and bathymetry data file was obtained from Frank Delahoyde (SIO ODF) 10/27/98. Depths in this file are Carter corrected. Original PDR data assumed a 1500 m/sec sound speed (not reported). Expocode: 325021_1 Chief Scientist: Dave Musgrave Ship: R/V Thomas Thompson Ports: San Francisco, CA - Sitka, Alaska Dates: 1993.05.15 - 1993.06.26 "p17n.nav" is the original data, SIO/ODF format "p17n_edit.nav" is the edited data, SIO/ODF format (see notes below) "P17N_bathy_gdc.dat" is the edited data, GDC format Files updated 8/27/02 LDT ------------------------------------- Ascii Navigation format for the original data "p17n.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, "P17N_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: The following lines were omitted from the p17n.nav data set (p17n_edit.nav is the cleaned data set). Depths were very suspicious compared with neighboring points, appear to be due to dropouts in the PDR. 93146 1331 8 3520 3936.594 -13500.039 1591 93146 1332 21 3518 3936.576 -13500.040 1591 93152 2222 36 2128 4614.834 -14320.979 38 93152 2223 19 1780 4614.798 -14321.009 33 93152 2224 14 1548 4614.771 -14320.995 29 93152 2225 14 1567 4614.758 -14320.964 29 93152 2226 10 1588 4614.750 -14320.937 1714 93152 2227 7 1593 4614.746 -14320.914 105 93152 2228 4 1602 4614.750 -14320.902 106 93152 2229 13 1595 4614.759 -14320.894 107 93152 2230 10 1597 4614.771 -14320.881 105 93152 2231 11 1595 4614.778 -14320.864 105 93152 2232 12 1595 4614.783 -14320.845 105 93152 2233 13 1598 4614.791 -14320.822 105 93152 2234 9 1593 4614.798 -14320.808 105 93152 2235 8 1592 4614.804 -14320.790 105 93152 2236 9 1558 4614.811 -14320.768 105 93152 2237 5 1472 4614.813 -14320.754 105 93152 2238 3 1470 4614.817 -14320.744 105 93152 2239 3 1468 4614.822 -14320.734 105 93152 2240 2 1472 4614.824 -14320.724 105 93152 2241 10 1470 4614.824 -14320.703 105 93157 1848 9 2152 5010.950 -15009.372 3223 93157 2257 90 3087 5029.997 -15043.615 3574 93157 2258 98 3038 5030.084 -15043.783 3574 93158 55 8 2160 5029.670 -15044.126 3455 93158 56 12 2163 5029.665 -15044.121 3455 93164 757 25 3300 5434.070 -15826.708 29 93164 758 26 2850 5434.034 -15826.674 29 93164 759 23 2737 5434.007 -15826.636 29 93164 800 11 2700 5433.992 -15826.611 106 93164 801 7 2675 5433.966 -15826.616 106 93164 1002 27 975 5435.969 -15830.231 29 93165 1120 0 1432 5511.169 -15837.243 9 93165 1121 0 1238 5511.148 -15837.207 9 93165 1725 0 1345 5425.972 -15731.786 116 93165 1726 0 1323 5425.820 -15731.550 114 93165 1727 0 1380 5425.692 -15731.324 113 93165 1728 0 1373 5425.559 -15731.129 111 93165 1729 0 1325 5425.436 -15730.903 109 93165 1730 0 1370 5425.308 -15730.698 107 93165 1731 0 1373 5425.167 -15730.447 106 93165 1732 0 1310 5425.042 -15730.239 105 93165 1733 0 1403 5424.912 -15730.025 106 93165 1734 0 1322 5424.763 -15729.773 106 93165 1735 0 1337 5424.641 -15729.572 106 93165 1736 0 1370 5424.507 -15729.364 108 93165 1737 0 1355 5424.462 -15729.286 108 93165 1739 0 1387 5424.063 -15728.630 4088 93165 1740 0 1370 5423.940 -15728.418 4088 93165 1742 0 1367 5423.666 -15727.957 110 93165 1743 0 1310 5423.537 -15727.742 110 93165 1744 0 1373 5423.410 -15727.526 108 93165 1745 0 1387 5422.989 -15728.118 106 93165 1746 0 1333 5422.860 -15727.906 106 93165 1852 110 1360 5414.377 -15713.826 2748 93165 1853 114 1352 5414.250 -15713.604 2754 93165 1854 110 1348 5414.126 -15713.392 2647 93165 1855 110 1357 5414.001 -15713.180 2647 93165 1856 110 1355 5413.855 -15712.928 2647 93165 1857 109 1350 5413.732 -15712.722 2647 93165 1858 104 1353 5413.610 -15712.515 2647 93165 1859 111 1350 5413.465 -15712.265 2647 93165 1900 110 1352 5413.343 -15712.055 1218 93165 1901 112 1348 5413.223 -15711.845 1218 93165 1902 110 1343 5413.102 -15711.632 3346 93165 1903 108 1353 5412.979 -15711.413 3345 93165 1904 111 1357 5412.828 -15711.149 3355 93165 1905 110 1350 5412.697 -15710.918 3368 93165 1906 103 1383 5412.579 -15710.712 3370 93165 1907 105 1312 5412.444 -15710.523 3370 93165 1908 109 1355 5412.331 -15710.303 3370 93165 1909 108 1310 5412.191 -15710.047 3370 93174 1303 87 2580 5718.546 -13623.462 30 93174 1304 37 2535 5718.516 -13623.639 30 93177 1433 85 473 5659.770 -13528.779 8