*2026/01/16 10:37:59.18 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/07/23 14:36:21.000 END TIME : UTC 2025/07/23 14:36:51.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 153 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 45.67 2 Depth metres 0.15 45.44 3 Temperature 'deg C (ITS90)' 8.53 15.926 4 Conductivity S/m 3.45355 3.89091 5 Conductance:Specific S/m 4.74238 5.15066 6 Salinity PSS-78 30.56 32.69 7 Speed:Sound m/s 1482.36 1504.44 8 Density kg/m^3 1022.355 1025.591 $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 : 238 LATITUDE : 49 38.86060 N ! (deg min) LONGITUDE : 126 26.36270 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250723_143621 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:35 153 153 MERGEHDR 1.3 2026/01/16 10:35:49 153 153 HDREDIT2 3.2 2026/01/16 10:36:20 ? ? REMOVECH 8.2 2026/01/16 10:36:52 153 153 CALIB 12.1 2026/01/16 10:37:23 153 153 CLEAN 5.3 2026/01/16 10:37:59 153 153 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:20 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 10:36:52 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:23 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 15.926 3.88172 4.74238 30.56 1504.44 1022.355 0.45 0.45 15.796 3.87969 4.75501 30.64 1504.14 1022.448 0.75 0.75 15.741 3.87869 4.76017 30.68 1504.01 1022.487 1.05 1.05 15.703 3.88128 4.76777 30.73 1503.95 1022.537 1.35 1.35 15.658 3.88351 4.77577 30.78 1503.88 1022.590 1.65 1.64 15.622 3.88960 4.78749 30.87 1503.87 1022.662 1.95 1.94 15.617 3.89091 4.78980 30.88 1503.87 1022.677 2.25 2.24 15.641 3.88628 4.78124 30.82 1503.89 1022.627 2.55 2.54 15.642 3.88586 4.78055 30.82 1503.89 1022.624 2.85 2.84 15.650 3.88455 4.77807 30.80 1503.90 1022.610 3.15 3.14 15.658 3.88476 4.77732 30.80 1503.92 1022.606 3.45 3.44 15.647 3.88581 4.77990 30.81 1503.91 1022.623 3.75 3.74 15.634 3.88740 4.78344 30.84 1503.91 1022.646 4.05 4.04 15.615 3.88337 4.78067 30.82 1503.83 1022.635 4.35 4.34 15.579 3.87759 4.77782 30.79 1503.69 1022.627 4.65 4.64 15.511 3.87679 4.78490 30.84 1503.53 1022.679 4.95 4.93 15.414 3.86678 4.78396 30.83 1503.22 1022.691 5.25 5.23 15.287 3.86376 4.79526 30.90 1502.91 1022.775 5.55 5.53 15.174 3.84884 4.79024 30.86 1502.50 1022.767 5.85 5.83 15.096 3.83692 4.78463 30.81 1502.20 1022.750 6.15 6.13 14.998 3.83004 4.78773 30.83 1501.91 1022.784 6.45 6.43 14.834 3.84348 4.82437 31.08 1501.68 1023.014 6.75 6.73 14.584 3.84160 4.85250 31.26 1501.10 1023.209 7.05 7.03 14.423 3.84245 4.87340 31.40 1500.74 1023.350 7.35 7.33 14.295 3.83205 4.87605 31.41 1500.34 1023.385 7.65 7.62 14.129 3.82673 4.88995 31.49 1499.91 1023.487 7.95 7.92 13.974 3.82353 4.90523 31.59 1499.52 1023.595 8.25 8.22 13.846 3.82218 4.91970 31.68 1499.21 1023.694 8.55 8.52 13.709 3.82329 4.93846 31.81 1498.91 1023.818 8.85 8.82 13.522 3.80505 4.93884 31.79 1498.28 1023.846 9.15 9.12 13.334 3.78563 4.93774 31.77 1497.63 1023.866 9.45 9.42 13.138 3.77399 4.94788 31.82 1497.05 1023.949 9.75 9.72 12.928 3.76285 4.96057 31.89 1496.43 1024.047 10.05 10.01 12.796 3.75640 4.96934 31.94 1496.05 1024.112 10.35 10.31 12.675 3.73930 4.96259 31.88 1495.58 1024.091 10.65 10.61 12.609 3.73389 4.96406 31.89 1495.37 1024.108 10.95 10.91 12.529 3.72664 4.96500 31.89 1495.10 1024.123 11.25 11.21 12.388 3.72214 4.97769 31.96 1494.71 1024.211 11.55 11.51 12.276 3.72058 4.99063 32.05 1494.43 1024.296 11.85 11.81 12.208 3.72049 4.99955 32.10 1494.27 1024.354 12.15 12.10 12.183 3.72083 5.00344 32.13 1494.22 1024.380 12.45 12.40 12.162 3.72037 5.00558 32.14 1494.17 1024.395 12.75 12.70 12.152 3.72008 5.00660 32.15 1494.15 1024.403 13.05 13.00 12.146 3.71934 5.00636 32.14 1494.13 1024.404 13.35 13.30 12.137 3.71870 5.00677 32.15 1494.10 1024.408 13.65 13.60 12.121 3.71610 5.00532 32.13 1494.04 1024.403 13.95 13.90 12.107 3.71643 5.00772 32.15 1494.02 1024.419 14.25 14.19 12.094 3.71562 5.00842 32.15 1493.98 1024.426 14.55 14.49 12.089 3.71631 5.01001 32.16 1493.98 1024.436 14.85 14.79 12.089 3.71605 5.00964 32.16 1493.98 1024.436 15.15 15.09 12.089 3.71580 5.00926 32.16 1493.99 1024.435 15.45 15.39 12.088 3.71582 5.00951 32.16 1493.99 1024.438 15.75 15.69 12.086 3.71627 5.01027 32.16 1493.99 1024.443 16.05 15.98 12.086 3.71627 5.01028 32.16 1494.00 1024.444 16.35 16.28 12.083 3.71626 5.01067 32.17 1494.00 1024.448 16.65 16.58 12.079 3.71493 5.00951 32.16 1493.97 1024.443 16.95 16.88 12.069 3.71441 5.01020 32.16 1493.95 1024.450 17.25 17.18 12.051 3.71396 5.01192 32.17 1493.91 1024.462 17.55 17.48 12.024 3.71167 5.01248 32.17 1493.82 1024.469 17.85 17.78 11.982 3.70885 5.01437 32.18 1493.69 1024.486 18.15 18.07 11.925 3.70228 5.01331 32.17 1493.48 1024.487 18.45 18.37 11.829 3.69233 5.01282 32.15 1493.14 1024.495 18.75 18.67 11.738 3.67862 5.00655 32.10 1492.77 1024.471 19.05 18.97 11.669 3.67312 5.00845 32.11 1492.54 1024.490 19.35 19.27 11.613 3.66815 5.00930 32.11 1492.35 1024.501 19.65 19.57 11.543 3.66600 5.01606 32.15 1492.16 1024.546 19.95 19.87 11.474 3.66006 5.01731 32.15 1491.93 1024.561 20.25 20.16 11.415 3.65625 5.02031 32.16 1491.74 1024.584 20.55 20.46 11.334 3.64653 5.01804 32.14 1491.43 1024.581 20.85 20.76 11.251 3.64145 5.02256 32.16 1491.17 1024.615 21.15 21.06 11.190 3.63875 5.02725 32.19 1491.00 1024.647 21.45 21.36 11.161 3.63815 5.03055 32.21 1490.92 1024.669 21.75 21.66 11.149 3.63811 5.03217 32.22 1490.90 1024.681 22.05 21.95 11.141 3.63808 5.03321 32.22 1490.88 1024.688 22.35 22.25 11.136 3.63742 5.03299 32.22 1490.87 1024.689 22.65 22.55 11.124 3.63575 5.03234 32.21 1490.82 1024.687 22.95 22.85 11.108 3.63495 5.03340 32.22 1490.78 1024.696 23.25 23.15 11.087 3.63417 5.03535 32.23 1490.72 1024.710 23.55 23.45 11.029 3.62696 5.03335 32.21 1490.50 1024.705 23.85 23.74 10.910 3.61573 5.03450 32.20 1490.07 1024.723 24.15 24.04 10.821 3.60440 5.03105 32.17 1489.72 1024.712 24.45 24.34 10.748 3.60007 5.03531 32.19 1489.49 1024.743 24.75 24.64 10.675 3.59594 5.03982 32.21 1489.27 1024.775 25.05 24.94 10.628 3.59466 5.04468 32.24 1489.14 1024.806 25.35 25.24 10.604 3.59336 5.04623 32.25 1489.07 1024.818 25.65 25.54 10.584 3.59306 5.04874 32.26 1489.02 1024.835 25.95 25.83 10.570 3.59337 5.05109 32.28 1488.99 1024.850 26.25 26.13 10.559 3.59295 5.05215 32.29 1488.97 1024.858 26.55 26.43 10.540 3.59158 5.05280 32.29 1488.91 1024.864 26.85 26.73 10.510 3.58949 5.05426 32.29 1488.81 1024.876 27.15 27.03 10.464 3.58586 5.05569 32.30 1488.66 1024.888 27.45 27.33 10.377 3.58288 5.06382 32.34 1488.41 1024.941 27.75 27.62 10.293 3.56498 5.05049 32.24 1487.99 1024.874 28.05 27.92 10.187 3.55149 5.04654 32.20 1487.56 1024.861 28.35 28.22 10.060 3.53438 5.04053 32.14 1487.03 1024.838 28.65 28.52 9.977 3.53053 5.04695 32.17 1486.78 1024.880 28.95 28.82 9.894 3.52833 5.05582 32.22 1486.55 1024.935 29.25 29.12 9.839 3.52788 5.06308 32.27 1486.41 1024.980 29.55 29.41 9.804 3.52731 5.06744 32.29 1486.31 1025.007 29.85 29.71 9.769 3.52596 5.07056 32.31 1486.21 1025.028 30.15 30.01 9.716 3.52443 5.07604 32.34 1486.06 1025.062 30.45 30.31 9.670 3.51702 5.07212 32.31 1485.86 1025.045 30.75 30.61 9.629 3.51562 5.07611 32.33 1485.74 1025.070 31.05 30.91 9.583 3.51032 5.07516 32.32 1485.56 1025.069 31.35 31.20 9.546 3.50636 5.07494 32.31 1485.42 1025.071 31.65 31.50 9.497 3.50236 5.07640 32.32 1485.25 1025.083 31.95 31.80 9.447 3.50033 5.08075 32.34 1485.10 1025.110 32.25 32.10 9.407 3.49775 5.08285 32.35 1484.97 1025.125 32.55 32.40 9.359 3.49493 5.08595 32.36 1484.82 1025.146 32.85 32.70 9.316 3.49278 5.08909 32.38 1484.69 1025.167 33.15 32.99 9.284 3.49077 5.09093 32.39 1484.59 1025.180 33.45 33.29 9.260 3.48871 5.09154 32.39 1484.50 1025.185 33.75 33.59 9.240 3.48833 5.09394 32.40 1484.45 1025.201 34.05 33.89 9.222 3.48688 5.09451 32.40 1484.39 1025.206 34.35 34.19 9.199 3.48630 5.09705 32.42 1484.33 1025.222 34.65 34.49 9.178 3.48559 5.09912 32.43 1484.27 1025.236 34.95 34.78 9.158 3.48394 5.09980 32.43 1484.20 1025.242 35.25 35.08 9.131 3.48203 5.10102 32.44 1484.11 1025.251 35.55 35.38 9.096 3.47939 5.10228 32.44 1484.00 1025.261 35.85 35.68 9.064 3.47803 5.10512 32.45 1483.90 1025.279 36.15 35.98 9.040 3.47710 5.10732 32.47 1483.83 1025.294 36.45 36.28 9.025 3.47721 5.10974 32.48 1483.80 1025.309 36.75 36.57 9.013 3.47649 5.11052 32.48 1483.76 1025.315 37.05 36.87 9.001 3.47607 5.11167 32.49 1483.73 1025.323 37.35 37.17 8.990 3.47557 5.11258 32.50 1483.70 1025.330 37.65 37.47 8.977 3.47536 5.11433 32.51 1483.67 1025.341 37.95 37.77 8.963 3.47401 5.11447 32.50 1483.62 1025.344 38.25 38.06 8.946 3.47389 5.11678 32.52 1483.58 1025.359 38.55 38.36 8.932 3.47252 5.11692 32.52 1483.53 1025.361 38.85 38.66 8.918 3.47176 5.11780 32.52 1483.49 1025.368 39.15 38.96 8.908 3.47081 5.11799 32.52 1483.46 1025.370 39.45 39.26 8.894 3.47015 5.11908 32.53 1483.42 1025.378 39.75 39.56 8.878 3.46903 5.11989 32.53 1483.36 1025.385 40.05 39.85 8.858 3.46822 5.12178 32.54 1483.31 1025.397 40.35 40.15 8.837 3.46706 5.12317 32.55 1483.24 1025.407 40.65 40.45 8.817 3.46684 5.12587 32.56 1483.19 1025.424 40.95 40.75 8.808 3.46638 5.12664 32.57 1483.17 1025.430 41.25 41.05 8.810 3.46655 5.12646 32.57 1483.18 1025.430 41.55 41.35 8.806 3.46528 5.12523 32.56 1483.16 1025.424 41.85 41.64 8.781 3.46407 5.12727 32.57 1483.08 1025.438 42.15 41.94 8.759 3.46236 5.12802 32.57 1483.01 1025.444 42.45 42.24 8.737 3.46145 5.13006 32.58 1482.94 1025.457 42.75 42.54 8.717 3.46029 5.13142 32.59 1482.88 1025.467 43.05 42.84 8.696 3.45973 5.13377 32.60 1482.83 1025.482 43.35 43.13 8.666 3.45828 5.13611 32.61 1482.73 1025.497 43.65 43.43 8.643 3.45864 5.14023 32.64 1482.68 1025.521 43.95 43.73 8.631 3.45757 5.14049 32.64 1482.64 1025.525 44.25 44.03 8.617 3.45728 5.14216 32.64 1482.61 1025.536 44.55 44.33 8.603 3.45599 5.14240 32.64 1482.56 1025.539 44.85 44.63 8.583 3.45421 5.14284 32.64 1482.49 1025.543 45.15 44.92 8.561 3.45364 5.14539 32.66 1482.43 1025.559 45.45 45.22 8.544 3.45355 5.14784 32.67 1482.39 1025.574 45.67 45.44 8.530 3.45400 5.15066 32.69 1482.36 1025.591