*2026/01/16 09:47:05.33 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2023/12/01 22:47:33.000 END TIME : UTC 2023/12/01 22:48:02.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 147 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 43.91 2 Depth metres 0.15 43.9 3 Temperature 'deg C (ITS90)' 9.891 14.132 4 Conductivity S/m 1.62458 3.47807 5 Conductance:Specific S/m 2.32806 4.44502 6 Salinity PSS-78 13.77 28.31 7 Speed:Sound m/s 1463.7 1496.79 8 Density kg/m^3 1010.444 1021.202 $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 : 2023-031 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 100 LATITUDE : 49 8.12170 N ! (deg min) LONGITUDE : 125 43.69960 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20231201_224733 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/15 13:40:53 147 147 MERGEHDR 1.3 2026/01/15 13:41:48 147 147 HDREDIT2 3.2 2026/01/15 14:00:57 ? ? REMOVECH 8.2 2026/01/15 14:01:18 147 147 CALIB 12.1 2026/01/16 09:46:09 147 147 CLEAN 5.3 2026/01/16 09:47:05 147 147 $END $REMARKS -HEADER EDITS: 2026/01/15 14:00:57 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 2026/01/15 14:01:18 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:46:09 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 09:47:01 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 9.891 1.62458 2.32806 13.77 1463.70 1010.444 0.45 0.45 10.647 1.79096 2.51206 15.00 1468.05 1011.301 0.75 0.76 10.909 2.20952 3.07659 18.72 1473.50 1014.155 1.05 1.06 10.986 2.33136 3.23925 19.82 1475.10 1014.990 1.35 1.36 11.040 2.44193 3.38778 20.82 1476.50 1015.759 1.65 1.66 11.236 2.52926 3.48995 21.52 1478.06 1016.275 1.95 1.96 11.475 2.65271 3.63630 22.53 1480.13 1017.021 2.25 2.26 11.767 2.75892 3.75192 23.34 1482.14 1017.602 2.55 2.56 12.022 2.81570 3.80273 23.71 1483.49 1017.845 2.85 2.86 12.168 2.86383 3.85258 24.06 1484.42 1018.094 3.15 3.16 12.327 2.91376 3.90305 24.42 1485.41 1018.346 3.45 3.46 12.475 2.94075 3.92357 24.57 1486.11 1018.439 3.75 3.76 12.520 2.97411 3.96337 24.85 1486.60 1018.647 4.05 4.06 12.514 2.98454 3.97788 24.95 1486.71 1018.727 4.35 4.36 12.540 2.99258 3.98580 25.00 1486.87 1018.767 4.65 4.66 12.573 2.99340 3.98347 24.99 1486.97 1018.752 4.95 4.96 12.567 2.99665 3.98838 25.02 1486.99 1018.780 5.25 5.26 12.573 3.00202 3.99488 25.07 1487.07 1018.815 5.55 5.56 12.563 3.01101 4.00796 25.16 1487.15 1018.888 5.85 5.86 12.550 3.01862 4.01942 25.24 1487.20 1018.952 6.15 6.16 12.516 3.01874 4.02330 25.26 1487.12 1018.978 6.45 6.46 12.484 3.01388 4.02025 25.24 1486.98 1018.967 6.75 6.76 12.413 3.01341 4.02727 25.28 1486.79 1019.014 7.05 7.06 12.369 3.01108 4.02889 25.29 1486.65 1019.030 7.35 7.36 12.339 3.01184 4.03310 25.32 1486.59 1019.057 7.65 7.66 12.319 3.01518 4.03976 25.36 1486.57 1019.096 7.95 7.96 12.318 3.01875 4.04459 25.39 1486.62 1019.123 8.25 8.26 12.327 3.01861 4.04345 25.39 1486.64 1019.117 8.55 8.56 12.344 3.02349 4.04814 25.42 1486.75 1019.142 8.85 8.86 12.343 3.03097 4.05829 25.49 1486.83 1019.198 9.15 9.16 12.358 3.05006 4.08223 25.66 1487.09 1019.326 9.45 9.46 12.383 3.06220 4.09575 25.75 1487.29 1019.397 9.75 9.76 12.386 3.06614 4.10065 25.79 1487.35 1019.424 10.05 10.06 12.406 3.07031 4.10409 25.81 1487.45 1019.441 10.35 10.36 12.423 3.07300 4.10579 25.83 1487.53 1019.449 10.65 10.66 12.433 3.07812 4.11156 25.87 1487.62 1019.481 10.95 10.96 12.445 3.08360 4.11748 25.91 1487.72 1019.512 11.25 11.26 12.459 3.08842 4.12244 25.94 1487.81 1019.539 11.55 11.56 12.473 3.09419 4.12862 25.99 1487.92 1019.571 11.85 11.86 12.484 3.09719 4.13138 26.01 1487.98 1019.586 12.15 12.16 12.476 3.10007 4.13605 26.04 1488.00 1019.613 12.45 12.46 12.474 3.10230 4.13924 26.06 1488.02 1019.632 12.75 12.76 12.473 3.10266 4.13982 26.07 1488.03 1019.637 13.05 13.06 12.474 3.10349 4.14085 26.07 1488.05 1019.643 13.35 13.36 12.480 3.10408 4.14097 26.07 1488.07 1019.644 13.65 13.66 12.487 3.10442 4.14070 26.07 1488.10 1019.643 13.95 13.96 12.492 3.10649 4.14285 26.09 1488.14 1019.656 14.25 14.26 12.500 3.10912 4.14546 26.11 1488.20 1019.670 14.55 14.56 12.511 3.11173 4.14778 26.12 1488.26 1019.683 14.85 14.86 12.521 3.11394 4.14963 26.14 1488.31 1019.693 15.15 15.16 12.540 3.11608 4.15030 26.14 1488.39 1019.695 15.45 15.46 12.563 3.12410 4.15852 26.20 1488.54 1019.738 15.75 15.76 12.581 3.13149 4.16636 26.26 1488.68 1019.779 16.05 16.06 12.587 3.13551 4.17104 26.29 1488.74 1019.805 16.35 16.36 12.610 3.13827 4.17209 26.30 1488.84 1019.809 16.65 16.66 12.631 3.14177 4.17446 26.32 1488.94 1019.820 16.95 16.96 12.633 3.14489 4.17834 26.34 1488.98 1019.842 17.25 17.26 12.637 3.14696 4.18072 26.36 1489.02 1019.856 17.55 17.56 12.654 3.14977 4.18247 26.37 1489.10 1019.865 17.85 17.86 12.674 3.15656 4.18926 26.42 1489.23 1019.900 18.15 18.16 12.648 3.15902 4.19546 26.46 1489.19 1019.938 18.45 18.46 12.595 3.15232 4.19243 26.44 1488.99 1019.929 18.75 18.76 12.557 3.15023 4.19392 26.45 1488.87 1019.943 19.05 19.06 12.490 3.14695 4.19702 26.46 1488.66 1019.969 19.35 19.36 12.471 3.14390 4.19511 26.45 1488.58 1019.962 19.65 19.66 12.481 3.14610 4.19692 26.46 1488.64 1019.972 19.95 19.96 12.472 3.15126 4.20478 26.51 1488.68 1020.017 20.25 20.26 12.480 3.15680 4.21133 26.56 1488.76 1020.053 20.55 20.56 12.489 3.15783 4.21165 26.56 1488.80 1020.054 20.85 20.86 12.491 3.15859 4.21251 26.57 1488.82 1020.060 21.15 21.16 12.499 3.15655 4.20884 26.54 1488.82 1020.041 21.45 21.46 12.505 3.15744 4.20940 26.55 1488.85 1020.044 21.75 21.76 12.554 3.16835 4.21842 26.62 1489.11 1020.088 22.05 22.06 12.628 3.17582 4.22005 26.63 1489.39 1020.089 22.35 22.36 12.682 3.18523 4.22644 26.68 1489.64 1020.119 22.65 22.66 12.701 3.18666 4.22625 26.68 1489.71 1020.117 22.95 22.96 12.702 3.18504 4.22396 26.67 1489.70 1020.105 23.25 23.26 12.688 3.18396 4.22406 26.66 1489.65 1020.109 23.55 23.56 12.676 3.18532 4.22725 26.69 1489.64 1020.129 23.85 23.86 12.674 3.18843 4.23165 26.72 1489.67 1020.154 24.15 24.16 12.660 3.19409 4.24073 26.78 1489.70 1020.206 24.45 24.46 12.521 3.18439 4.24344 26.79 1489.24 1020.239 24.75 24.76 12.402 3.16174 4.22670 26.66 1488.69 1020.164 25.05 25.06 12.329 3.15256 4.22268 26.63 1488.40 1020.152 25.35 25.36 12.303 3.15183 4.22465 26.64 1488.32 1020.167 25.65 25.66 12.334 3.15993 4.23199 26.69 1488.50 1020.204 25.95 25.96 12.345 3.16304 4.23484 26.71 1488.57 1020.219 26.25 26.26 12.334 3.16514 4.23893 26.74 1488.57 1020.244 26.55 26.56 12.360 3.16602 4.23721 26.73 1488.65 1020.233 26.85 26.86 12.357 3.16354 4.23419 26.71 1488.62 1020.218 27.15 27.16 12.350 3.16692 4.23955 26.75 1488.64 1020.250 27.45 27.46 12.350 3.16639 4.23883 26.74 1488.64 1020.247 27.75 27.76 12.336 3.16759 4.24198 26.76 1488.63 1020.267 28.05 28.06 12.335 3.16715 4.24151 26.76 1488.62 1020.266 28.35 28.36 12.327 3.16565 4.24037 26.75 1488.59 1020.262 28.65 28.65 12.310 3.16532 4.24189 26.76 1488.55 1020.273 28.95 28.95 12.301 3.16719 4.24540 26.78 1488.55 1020.294 29.25 29.25 12.325 3.17223 4.24949 26.81 1488.67 1020.315 29.55 29.55 12.388 3.17697 4.24865 26.81 1488.89 1020.304 29.85 29.85 12.411 3.18273 4.25374 26.85 1489.02 1020.330 30.15 30.15 12.420 3.18377 4.25409 26.85 1489.06 1020.332 30.45 30.45 12.425 3.18468 4.25474 26.86 1489.09 1020.337 30.75 30.75 12.428 3.18362 4.25294 26.84 1489.09 1020.328 31.05 31.05 12.426 3.18432 4.25411 26.85 1489.10 1020.336 31.35 31.35 12.429 3.18443 4.25401 26.85 1489.11 1020.336 31.65 31.65 12.429 3.18540 4.25529 26.86 1489.13 1020.344 31.95 31.95 12.433 3.18565 4.25516 26.86 1489.15 1020.344 32.25 32.25 12.442 3.18753 4.25660 26.87 1489.20 1020.352 32.55 32.55 12.456 3.19000 4.25831 26.88 1489.26 1020.361 32.85 32.85 12.478 3.19233 4.25891 26.89 1489.35 1020.363 33.15 33.15 12.489 3.19304 4.25860 26.89 1489.39 1020.361 33.45 33.45 12.508 3.19384 4.25759 26.88 1489.46 1020.355 33.75 33.75 12.520 3.19691 4.26026 26.90 1489.53 1020.369 34.05 34.05 12.528 3.19842 4.26140 26.91 1489.57 1020.376 34.35 34.35 12.536 3.20007 4.26270 26.92 1489.61 1020.383 34.65 34.65 12.548 3.20337 4.26565 26.94 1489.69 1020.399 34.95 34.95 12.561 3.20439 4.26564 26.94 1489.73 1020.398 35.25 35.25 12.574 3.20819 4.26920 26.97 1489.81 1020.417 35.55 35.55 12.588 3.20920 4.26889 26.97 1489.87 1020.415 35.85 35.85 12.586 3.20957 4.26961 26.97 1489.87 1020.421 36.15 36.15 12.572 3.20987 4.27164 26.98 1489.84 1020.435 36.45 36.45 12.581 3.20654 4.26619 26.95 1489.83 1020.405 36.75 36.75 12.627 3.21479 4.27190 26.99 1490.05 1020.432 37.05 37.05 12.734 3.23233 4.28304 27.08 1490.52 1020.480 37.35 37.35 12.844 3.24682 4.28969 27.13 1490.97 1020.504 37.65 37.65 12.979 3.27455 4.31096 27.29 1491.63 1020.603 37.95 37.95 13.077 3.28484 4.31341 27.31 1491.99 1020.605 38.25 38.25 13.140 3.29023 4.31336 27.32 1492.22 1020.598 38.55 38.55 13.175 3.29582 4.31670 27.34 1492.37 1020.612 38.85 38.84 13.238 3.30069 4.31600 27.34 1492.59 1020.602 39.15 39.14 13.383 3.31319 4.31594 27.35 1493.09 1020.583 39.45 39.44 13.418 3.33358 4.33856 27.52 1493.41 1020.702 39.75 39.74 13.500 3.34801 4.34806 27.59 1493.77 1020.744 40.05 40.04 13.580 3.35330 4.34586 27.58 1494.04 1020.722 40.35 40.34 13.584 3.36116 4.35569 27.65 1494.13 1020.776 40.65 40.64 13.655 3.37760 4.36895 27.75 1494.49 1020.840 40.95 40.94 13.768 3.39803 4.38252 27.85 1495.00 1020.899 41.25 41.24 13.840 3.40390 4.38190 27.85 1495.24 1020.887 41.55 41.54 13.846 3.40335 4.38060 27.84 1495.26 1020.880 41.85 41.84 13.829 3.40460 4.38411 27.86 1495.23 1020.903 42.15 42.14 13.880 3.40446 4.37820 27.83 1495.36 1020.865 42.45 42.44 13.962 3.42380 4.39374 27.94 1495.77 1020.939 42.75 42.74 14.088 3.46325 4.43010 28.21 1496.50 1021.119 43.05 43.04 14.125 3.46797 4.43196 28.22 1496.65 1021.125 43.35 43.34 14.111 3.46871 4.43444 28.24 1496.63 1021.142 43.65 43.64 14.100 3.47602 4.44502 28.31 1496.68 1021.202 43.91 43.90 14.132 3.47807 4.44404 28.31 1496.79 1021.193