*2026/01/16 10:37:57.91 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/07/22 01:25:44.000 END TIME : UTC 2025/07/22 01:26:13.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 149 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 44.52 2 Depth metres 0.15 44.3 3 Temperature 'deg C (ITS90)' 8.245 17.072 4 Conductivity S/m 3.42022 3.7682 5 Conductance:Specific S/m 4.42957 5.14636 6 Salinity PSS-78 28.39 32.62 7 Speed:Sound m/s 1481.15 1505.58 8 Density kg/m^3 1020.435 1025.566 $END $TABLE: CHANNEL DETAIL ! No Pad Start Width Format Type Decimal_Places !--- ---- ----- ----- ------ ---- -------------- 1 -99 ' ' 7 F R4 2 2 -99 ' ' 7 F R4 2 3 -99 ' ' 8 F R4 3 4 -99 ' ' 10 F R4 5 5 -99 ' ' 10 F R4 5 6 -99 ' ' 7 F R4 2 7 -99 ' ' 8 F R4 2 8 -99 ' ' 9 F R4 3 $END *ADMINISTRATION MISSION : 2025-087 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 219 LATITUDE : 49 38.28660 N ! (deg min) LONGITUDE : 126 21.30130 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250722_012544 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:34 149 149 MERGEHDR 1.3 2026/01/16 10:35:48 149 149 HDREDIT2 3.2 2026/01/16 10:36:19 ? ? REMOVECH 8.2 2026/01/16 10:36:51 149 149 CALIB 12.1 2026/01/16 10:37:22 149 149 CLEAN 5.3 2026/01/16 10:37:57 149 149 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:19 Applied edit header: C:\Users\huntingtons\Desktop\Misc_Projects\Castaway\castaway2023_HDR.txt Channel 2: Depth [metres] Format: F10.6 ==> F7.2 Channel 3: Temperature [deg C (ITS90)] Format: F14.6 ==> F8.3 Channel 4: Conductivity [mS/cm] Units: ms/cm ==> mS/cm Format: F14.6 ==> F9.1 Channel 5: Conductance:Specific [mS/cm] Name: Specific Conductance ==> Conductance:Specific Units: ms/cm ==> mS/cm Format: F14.6 ==> F9.1 Channel 6: Salinity [PSS-78] Format: F14.6 ==> F7.2 Channel 7: Speed:Sound [m/s] Name: Sound Velocity ==> Speed:Sound Format: F14.6 ==> F8.2 Channel 8: Density [kg/m^3] Format: F14.6 ==> F9.3 -REMOVECH 2026/01/16 10:36:51 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:22 Calibration type = Correct Mode: ONLY - calibration specs from Cal File only. Calibration file = C:\Users\huntingtons\Desktop\Misc_Projects\Castaway\recal-cond.CCF Calibrations applied: Ch Name Units Fmla Coefficents -- ----------------------------- --------- --- ----------------------------- 4 Conductivity S/m 10 0.0000000E+00 0.1000000E-03 5 Conductance:Specific S/m 10 0.0000000E+00 0.1000000E-03 -CLEAN functions: 2026/01/16 10:37:42 20 Reset #RECS, MIN & MAX values in header. Set header Start and End times from the data. $END *COMMENTS Data Processing Notes: The CastAway-CTD is a small profiling instrument that measures conductivity, temperature, and pressure. Its embedded firmware controls all of the instrument's functions. It is designed for profiling to depths of up to 100m at 5 Hz. It uses a six electrode flow-through conductivity cell with zero external field coupled with a rapid response thermistor (<5Hz) to attain high measurement accuracies. The instrument does not require a pump and is hydrodynamically designed to free fall rate of 1 m/s. Processing was done using the CastAway CTD data processing system which included the following steps: - Pressure correction to remove ambient atmospheric pressure. - Removal of records obtained while the system was stationary. - De-spiking of conductivity data to remove erratic measurements near the water surface that can be caused by air bubbles trapped in the conductivity flow cell. - Bin-averaging with 0.3db bins with linear interpolation used to fill empty bins or the nearest available value for surface or bottom bins. - Combination of downcast and upcast data using a weighted average based on fall velocity. - Derivation of specific conductance, salinity, sound speed, density and depth for each pressure bin. The data were converted to IOS Header format. Calibration dates were taken from the original data file header: % Samples per second,5 % Electronics calibration date,0001-01-01 % Conductivity calibration date,2020-03-13 % Temperature calibration date,2020-03-12 % Pressure calibration date,2020-03-04 % *CALIBRATION $TABLE: CORRECTED CHANNELS ! Name Units Fmla Pad Coefficients ! ---------------------- ----- ---- ------ ------------ Conductivity S/m 10 -99 () (0 0.1E-03) Conductance:Specific S/m 10 -99 () (0 0.1E-03) $END !--1--- --2--- ---3--- ----4---- ----5---- --6--- ---7--- ---8---- !Pressu Depth Tempera Conductiv Conductan Salini Speed: Density !re ture ity ce: ty Sound ! Specific !------ ------ ------- --------- --------- ------ ------- -------- *END OF HEADER 0.15 0.15 17.072 3.73655 4.44070 28.47 1505.58 1020.493 0.45 0.45 17.062 3.72637 4.42957 28.39 1505.47 1020.435 0.75 0.75 17.000 3.72746 4.43741 28.44 1505.34 1020.491 1.05 1.05 16.858 3.73269 4.45880 28.59 1505.08 1020.636 1.35 1.35 16.712 3.74549 4.48972 28.80 1504.88 1020.833 1.65 1.65 16.605 3.75313 4.51042 28.94 1504.72 1020.967 1.95 1.95 16.605 3.76178 4.52085 29.01 1504.80 1021.026 2.25 2.25 16.554 3.76379 4.52882 29.07 1504.71 1021.080 2.55 2.55 16.508 3.76662 4.53716 29.13 1504.64 1021.135 2.85 2.85 16.454 3.76647 4.54292 29.16 1504.53 1021.177 3.15 3.15 16.356 3.76715 4.55454 29.24 1504.31 1021.260 3.45 3.44 16.281 3.76818 4.56410 29.31 1504.16 1021.327 3.75 3.74 16.199 3.76820 4.57316 29.37 1503.98 1021.393 4.05 4.04 16.085 3.76816 4.58577 29.45 1503.73 1021.483 4.35 4.34 15.970 3.76808 4.59854 29.53 1503.47 1021.575 4.65 4.64 15.792 3.76732 4.61776 29.66 1503.06 1021.712 4.95 4.94 15.497 3.74750 4.62685 29.71 1502.19 1021.813 5.25 5.24 15.325 3.73696 4.63360 29.75 1501.69 1021.880 5.55 5.54 15.235 3.73391 4.64009 29.79 1501.45 1021.932 5.85 5.84 15.085 3.72856 4.65081 29.85 1501.06 1022.016 6.15 6.14 14.801 3.72271 4.67662 30.02 1500.34 1022.204 6.45 6.44 14.482 3.70600 4.69325 30.11 1499.43 1022.346 6.75 6.74 14.079 3.69598 4.72885 30.34 1498.38 1022.602 7.05 7.04 13.693 3.67186 4.74492 30.42 1497.21 1022.746 7.35 7.33 13.453 3.65798 4.75637 30.48 1496.49 1022.842 7.65 7.63 13.103 3.64362 4.78131 30.63 1495.49 1023.026 7.95 7.93 12.758 3.63853 4.81818 30.86 1494.61 1023.273 8.25 8.23 12.397 3.63051 4.85406 31.08 1493.65 1023.514 8.55 8.53 12.046 3.61039 4.87282 31.18 1492.57 1023.658 8.85 8.83 11.812 3.58768 4.87295 31.16 1491.74 1023.684 9.15 9.13 11.553 3.58226 4.90010 31.33 1491.04 1023.861 9.45 9.43 11.319 3.57795 4.92576 31.48 1490.41 1024.026 9.75 9.72 11.118 3.57389 4.94752 31.62 1489.87 1024.165 10.05 10.02 10.966 3.56985 4.96283 31.71 1489.45 1024.264 10.35 10.32 10.864 3.56389 4.96866 31.74 1489.13 1024.306 10.65 10.62 10.811 3.55735 4.96680 31.72 1488.92 1024.301 10.95 10.92 10.753 3.55275 4.96847 31.72 1488.72 1024.316 11.25 11.22 10.689 3.55092 4.97481 31.76 1488.55 1024.358 11.55 11.52 10.603 3.55020 4.98585 31.83 1488.33 1024.427 11.85 11.81 10.537 3.54926 4.99378 31.87 1488.15 1024.477 12.15 12.11 10.500 3.54845 4.99779 31.90 1488.06 1024.503 12.45 12.41 10.463 3.54724 5.00127 31.92 1487.95 1024.526 12.75 12.71 10.423 3.54619 5.00556 31.94 1487.84 1024.554 13.05 13.01 10.384 3.54429 5.00835 31.96 1487.73 1024.573 13.35 13.31 10.358 3.54156 5.00818 31.95 1487.63 1024.576 13.65 13.61 10.340 3.54199 5.01134 31.97 1487.60 1024.596 13.95 13.90 10.325 3.53891 5.00909 31.96 1487.53 1024.585 14.25 14.20 10.309 3.53790 5.00997 31.96 1487.48 1024.593 14.55 14.50 10.287 3.53642 5.01098 31.96 1487.41 1024.601 14.85 14.80 10.258 3.53484 5.01288 31.97 1487.32 1024.615 15.15 15.10 10.230 3.53471 5.01663 32.00 1487.26 1024.639 15.45 15.40 10.207 3.53042 5.01374 31.97 1487.15 1024.626 15.75 15.69 10.183 3.52697 5.01226 31.96 1487.05 1024.620 16.05 15.99 10.137 3.52867 5.02128 32.02 1486.96 1024.674 16.35 16.29 10.097 3.52603 5.02326 32.03 1486.83 1024.689 16.65 16.59 10.071 3.52577 5.02658 32.05 1486.77 1024.711 16.95 16.89 10.052 3.52557 5.02900 32.06 1486.72 1024.726 17.25 17.19 10.037 3.52382 5.02876 32.06 1486.67 1024.727 17.55 17.49 10.027 3.52180 5.02721 32.04 1486.62 1024.721 17.85 17.78 10.003 3.51989 5.02797 32.05 1486.54 1024.728 18.15 18.08 9.960 3.51781 5.03114 32.06 1486.41 1024.749 18.45 18.38 9.929 3.51308 5.02890 32.04 1486.28 1024.740 18.75 18.68 9.905 3.50860 5.02600 32.02 1486.17 1024.727 19.05 18.98 9.858 3.50690 5.03022 32.04 1486.03 1024.754 19.35 19.28 9.814 3.50583 5.03505 32.07 1485.91 1024.785 19.65 19.57 9.789 3.50523 5.03779 32.09 1485.85 1024.803 19.95 19.87 9.768 3.50463 5.04000 32.10 1485.79 1024.817 20.25 20.17 9.745 3.50189 5.03945 32.09 1485.70 1024.817 20.55 20.47 9.714 3.50125 5.04307 32.11 1485.62 1024.840 20.85 20.77 9.673 3.49763 5.04380 32.11 1485.47 1024.848 21.15 21.07 9.629 3.49328 5.04392 32.11 1485.31 1024.852 21.45 21.36 9.592 3.49272 5.04843 32.14 1485.21 1024.880 21.75 21.66 9.552 3.49074 5.05146 32.15 1485.09 1024.900 22.05 21.96 9.519 3.48959 5.05457 32.17 1485.00 1024.921 22.35 22.26 9.488 3.48896 5.05817 32.19 1484.92 1024.943 22.65 22.56 9.431 3.48639 5.06292 32.21 1484.74 1024.974 22.95 22.86 9.356 3.47796 5.06159 32.19 1484.45 1024.971 23.25 23.15 9.260 3.46699 5.05979 32.17 1484.07 1024.967 23.55 23.45 9.156 3.45993 5.06492 32.19 1483.71 1025.002 23.85 23.75 9.084 3.45762 5.07219 32.23 1483.50 1025.046 24.15 24.05 9.016 3.45591 5.07978 32.27 1483.31 1025.092 24.45 24.35 8.960 3.45314 5.08417 32.30 1483.13 1025.120 24.75 24.65 8.914 3.45082 5.08758 32.31 1482.99 1025.142 25.05 24.94 8.874 3.44903 5.09100 32.33 1482.86 1025.163 25.35 25.24 8.841 3.44689 5.09276 32.34 1482.76 1025.176 25.65 25.54 8.807 3.44531 5.09556 32.35 1482.65 1025.194 25.95 25.84 8.772 3.44350 5.09810 32.37 1482.54 1025.210 26.25 26.14 8.742 3.44272 5.10158 32.39 1482.46 1025.232 26.55 26.44 8.715 3.43984 5.10129 32.38 1482.36 1025.232 26.85 26.73 8.673 3.43873 5.10605 32.41 1482.24 1025.261 27.15 27.03 8.647 3.43838 5.10950 32.43 1482.17 1025.282 27.45 27.33 8.621 3.43599 5.10993 32.43 1482.08 1025.287 27.75 27.63 8.600 3.43532 5.11213 32.44 1482.02 1025.301 28.05 27.93 8.570 3.43455 5.11553 32.46 1481.93 1025.322 28.35 28.23 8.547 3.43300 5.11678 32.46 1481.86 1025.331 28.65 28.52 8.528 3.43194 5.11801 32.47 1481.80 1025.339 28.95 28.82 8.507 3.43115 5.12009 32.48 1481.74 1025.353 29.25 29.12 8.492 3.43061 5.12147 32.49 1481.70 1025.362 29.55 29.42 8.482 3.42957 5.12149 32.48 1481.66 1025.364 29.85 29.72 8.469 3.42961 5.12364 32.50 1481.63 1025.377 30.15 30.02 8.459 3.42978 5.12536 32.51 1481.62 1025.388 30.45 30.31 8.449 3.42951 5.12647 32.51 1481.59 1025.396 30.75 30.61 8.442 3.42851 5.12608 32.51 1481.56 1025.395 31.05 30.91 8.441 3.42983 5.12821 32.53 1481.58 1025.408 31.35 31.21 8.456 3.42881 5.12428 32.50 1481.62 1025.387 31.65 31.51 8.441 3.42775 5.12506 32.50 1481.57 1025.393 31.95 31.80 8.423 3.42730 5.12709 32.51 1481.52 1025.406 32.25 32.10 8.404 3.42654 5.12893 32.52 1481.46 1025.418 32.55 32.40 8.389 3.42483 5.12863 32.52 1481.41 1025.418 32.85 32.70 8.380 3.42508 5.13042 32.53 1481.39 1025.429 33.15 33.00 8.375 3.42473 5.13075 32.53 1481.38 1025.433 33.45 33.30 8.368 3.42511 5.13234 32.54 1481.37 1025.443 33.75 33.59 8.360 3.42473 5.13295 32.54 1481.35 1025.448 34.05 33.89 8.351 3.42346 5.13252 32.54 1481.31 1025.447 34.35 34.19 8.347 3.42435 5.13442 32.55 1481.32 1025.459 34.65 34.49 8.346 3.42311 5.13274 32.54 1481.30 1025.451 34.95 34.79 8.343 3.42439 5.13518 32.56 1481.32 1025.465 35.25 35.09 8.342 3.42317 5.13340 32.54 1481.30 1025.457 35.55 35.38 8.340 3.42380 5.13464 32.55 1481.31 1025.465 35.85 35.68 8.339 3.42351 5.13443 32.55 1481.31 1025.465 36.15 35.98 8.339 3.42308 5.13376 32.55 1481.31 1025.463 36.45 36.28 8.333 3.42343 5.13515 32.55 1481.30 1025.472 36.75 36.58 8.329 3.42236 5.13424 32.55 1481.28 1025.468 37.05 36.87 8.328 3.42281 5.13500 32.55 1481.29 1025.474 37.35 37.17 8.324 3.42252 5.13521 32.55 1481.28 1025.476 37.65 37.47 8.321 3.42250 5.13564 32.56 1481.28 1025.480 37.95 37.77 8.316 3.42235 5.13620 32.56 1481.27 1025.484 38.25 38.07 8.314 3.42177 5.13566 32.55 1481.26 1025.483 38.55 38.37 8.309 3.42159 5.13613 32.56 1481.25 1025.487 38.85 38.66 8.306 3.42195 5.13721 32.56 1481.25 1025.494 39.15 38.96 8.297 3.42162 5.13803 32.57 1481.23 1025.500 39.45 39.26 8.292 3.42081 5.13766 32.56 1481.21 1025.499 39.75 39.56 8.286 3.42022 5.13762 32.56 1481.19 1025.501 40.05 39.86 8.282 3.42117 5.13969 32.58 1481.20 1025.513 40.35 40.15 8.277 3.42183 5.14143 32.59 1481.20 1025.524 40.65 40.45 8.268 3.42220 5.14333 32.60 1481.18 1025.536 40.95 40.75 8.263 3.42161 5.14330 32.60 1481.17 1025.537 41.25 41.05 8.258 3.42096 5.14306 32.60 1481.15 1025.538 41.55 41.35 8.256 3.42151 5.14416 32.60 1481.16 1025.545 41.85 41.65 8.256 3.42125 5.14380 32.60 1481.16 1025.544 42.15 41.94 8.258 3.42136 5.14360 32.60 1481.17 1025.544 42.45 42.24 8.253 3.42111 5.14405 32.60 1481.16 1025.548 42.75 42.54 8.253 3.42242 5.14599 32.62 1481.18 1025.560 43.05 42.84 8.250 3.42087 5.14414 32.60 1481.16 1025.551 43.35 43.14 8.246 3.42156 5.14577 32.61 1481.16 1025.562 43.65 43.43 8.245 3.42183 5.14636 32.62 1481.16 1025.566 43.95 43.73 8.251 3.42189 5.14554 32.61 1481.19 1025.563 44.25 44.03 8.267 3.42281 5.14439 32.61 1481.25 1025.557 44.52 44.30 8.296 3.42590 5.14463 32.61 1481.36 1025.559