*2026/01/16 09:57:53.94 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/08/15 18:01:36.000 END TIME : UTC 2024/08/15 18:01:55.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 97 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 28.96 2 Depth metres 0.15 28.83 3 Temperature 'deg C (ITS90)' 10.434 14.58 4 Conductivity S/m 3.55437 3.87489 5 Conductance:Specific S/m 4.86439 5.01699 6 Salinity PSS-78 31.34 32.02 7 Speed:Sound m/s 1488.24 1501.33 8 Density kg/m^3 1023.259 1024.684 $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 : 2024-087 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 215 LATITUDE : 48 54.53820 N ! (deg min) LONGITUDE : 125 28.44700 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240815_180136 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:04 97 97 MERGEHDR 1.3 2026/01/16 09:54:01 97 97 HDREDIT2 3.2 2026/01/16 09:55:10 ? ? REMOVECH 8.2 2026/01/16 09:56:20 97 97 CALIB 12.1 2026/01/16 09:56:54 97 97 CLEAN 5.3 2026/01/16 09:57:53 97 97 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:10 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 09:56:20 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:54 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 09:57:46 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 14.580 3.87489 4.89496 31.57 1501.33 1023.416 0.45 0.45 14.540 3.85866 4.87940 31.45 1501.08 1023.338 0.75 0.75 14.521 3.84493 4.86439 31.34 1500.89 1023.259 1.05 1.05 14.509 3.86708 4.89395 31.55 1501.10 1023.425 1.35 1.34 14.505 3.87017 4.89832 31.58 1501.13 1023.451 1.65 1.64 14.491 3.87135 4.90157 31.61 1501.12 1023.473 1.95 1.94 14.478 3.86935 4.90065 31.60 1501.07 1023.471 2.25 2.24 14.435 3.86442 4.89972 31.59 1500.93 1023.473 2.55 2.54 14.348 3.85450 4.89800 31.57 1500.62 1023.478 2.85 2.84 14.171 3.83945 4.90086 31.58 1500.06 1023.521 3.15 3.14 14.053 3.82863 4.90180 31.57 1499.68 1023.544 3.45 3.44 13.927 3.82066 4.90742 31.60 1499.31 1023.594 3.75 3.74 13.807 3.80890 4.90752 31.59 1498.90 1023.613 4.05 4.03 13.711 3.80172 4.91036 31.61 1498.61 1023.643 4.35 4.33 13.649 3.79734 4.91257 31.62 1498.42 1023.665 4.65 4.63 13.597 3.79257 4.91302 31.62 1498.25 1023.676 4.95 4.93 13.560 3.79123 4.91600 31.63 1498.16 1023.699 5.25 5.23 13.508 3.78893 4.91973 31.66 1498.01 1023.728 5.55 5.53 13.452 3.78419 4.92068 31.66 1497.84 1023.741 5.85 5.83 13.410 3.78123 4.92216 31.66 1497.71 1023.756 6.15 6.13 13.388 3.77965 4.92293 31.67 1497.65 1023.765 6.45 6.42 13.365 3.77922 4.92529 31.68 1497.59 1023.782 6.75 6.72 13.334 3.77778 4.92742 31.70 1497.51 1023.799 7.05 7.02 13.303 3.77561 4.92866 31.70 1497.42 1023.811 7.35 7.32 13.227 3.76547 4.92517 31.67 1497.13 1023.803 7.65 7.62 13.165 3.76068 4.92692 31.68 1496.94 1023.822 7.95 7.92 13.112 3.75869 4.93118 31.70 1496.79 1023.853 8.25 8.22 13.008 3.75510 4.93991 31.75 1496.51 1023.916 8.55 8.51 12.759 3.73796 4.94971 31.80 1495.74 1024.002 8.85 8.81 12.612 3.71283 4.93574 31.69 1495.11 1023.943 9.15 9.11 12.345 3.67384 4.91874 31.54 1494.03 1023.881 9.45 9.41 12.201 3.66313 4.92338 31.56 1493.56 1023.924 9.75 9.71 12.022 3.65290 4.93347 31.61 1493.01 1024.000 10.05 10.01 11.869 3.64811 4.94745 31.70 1492.59 1024.094 10.35 10.31 11.763 3.64437 4.95657 31.75 1492.29 1024.157 10.65 10.61 11.617 3.63569 4.96452 31.79 1491.84 1024.216 10.95 10.90 11.531 3.62949 4.96769 31.80 1491.56 1024.244 11.25 11.20 11.450 3.61636 4.96077 31.75 1491.21 1024.214 11.55 11.50 11.293 3.60901 4.97209 31.81 1490.75 1024.293 11.85 11.80 11.210 3.60553 4.97869 31.85 1490.50 1024.338 12.15 12.10 11.123 3.59923 4.98193 31.86 1490.22 1024.365 12.45 12.40 11.088 3.59719 4.98392 31.87 1490.11 1024.380 12.75 12.70 11.065 3.59610 4.98561 31.88 1490.05 1024.392 13.05 12.99 11.043 3.59615 4.98869 31.90 1490.00 1024.413 13.35 13.29 11.033 3.59528 4.98890 31.90 1489.97 1024.416 13.65 13.59 11.023 3.59447 4.98916 31.90 1489.94 1024.420 13.95 13.89 11.012 3.58980 4.98424 31.86 1489.86 1024.395 14.25 14.19 10.978 3.58740 4.98560 31.87 1489.75 1024.406 14.55 14.49 10.929 3.58537 4.98956 31.89 1489.61 1024.433 14.85 14.78 10.904 3.58493 4.99243 31.91 1489.55 1024.453 15.15 15.08 10.898 3.58547 4.99400 31.92 1489.54 1024.463 15.45 15.38 10.890 3.58524 4.99470 31.92 1489.53 1024.469 15.75 15.68 10.885 3.58481 4.99492 31.92 1489.51 1024.472 16.05 15.98 10.879 3.58447 4.99528 31.92 1489.50 1024.475 16.35 16.28 10.866 3.58382 4.99619 31.93 1489.46 1024.483 16.65 16.58 10.855 3.58341 4.99713 31.93 1489.44 1024.490 16.95 16.87 10.846 3.58269 4.99737 31.93 1489.41 1024.494 17.25 17.17 10.852 3.58341 4.99755 31.94 1489.44 1024.495 17.55 17.47 10.840 3.58250 4.99786 31.94 1489.40 1024.499 17.85 17.77 10.831 3.58113 4.99726 31.93 1489.37 1024.498 18.15 18.07 10.815 3.57835 4.99565 31.92 1489.30 1024.492 18.45 18.37 10.786 3.57634 4.99688 31.92 1489.21 1024.502 18.75 18.67 10.759 3.57518 4.99893 31.93 1489.13 1024.517 19.05 18.96 10.732 3.57367 5.00073 31.94 1489.05 1024.530 19.35 19.26 10.716 3.57318 5.00219 31.95 1489.01 1024.541 19.65 19.56 10.698 3.57332 5.00494 31.97 1488.97 1024.559 19.95 19.86 10.682 3.57287 5.00653 31.98 1488.93 1024.570 20.25 20.16 10.661 3.57080 5.00658 31.98 1488.86 1024.573 20.55 20.46 10.658 3.57064 5.00679 31.98 1488.85 1024.576 20.85 20.76 10.659 3.56986 5.00548 31.97 1488.85 1024.570 21.15 21.05 10.653 3.56965 5.00609 31.97 1488.84 1024.575 21.45 21.35 10.647 3.57039 5.00804 31.98 1488.84 1024.587 21.75 21.65 10.645 3.57130 5.00958 32.00 1488.85 1024.597 22.05 21.95 10.648 3.57115 5.00893 31.99 1488.86 1024.595 22.35 22.25 10.637 3.57073 5.00988 32.00 1488.83 1024.602 22.65 22.55 10.627 3.56864 5.00836 31.98 1488.79 1024.596 22.95 22.84 10.622 3.56767 5.00770 31.98 1488.77 1024.594 23.25 23.14 10.620 3.56691 5.00696 31.97 1488.76 1024.591 23.55 23.44 10.610 3.56744 5.00904 31.99 1488.74 1024.604 23.85 23.74 10.610 3.56586 5.00683 31.97 1488.73 1024.594 24.15 24.04 10.599 3.56518 5.00746 31.97 1488.70 1024.599 24.45 24.34 10.592 3.56569 5.00912 31.98 1488.69 1024.610 24.75 24.64 10.584 3.56561 5.01008 31.99 1488.68 1024.617 25.05 24.93 10.584 3.56655 5.01141 32.00 1488.69 1024.626 25.35 25.23 10.581 3.56541 5.01031 31.99 1488.67 1024.621 25.65 25.53 10.582 3.56559 5.01043 31.99 1488.68 1024.623 25.95 25.83 10.588 3.56564 5.00964 31.99 1488.70 1024.620 26.25 26.13 10.595 3.56651 5.00980 31.99 1488.74 1024.621 26.55 26.43 10.594 3.56544 5.00851 31.98 1488.73 1024.615 26.85 26.72 10.587 3.56522 5.00920 31.98 1488.71 1024.621 27.15 27.02 10.584 3.56482 5.00901 31.98 1488.70 1024.621 27.45 27.32 10.580 3.56385 5.00824 31.98 1488.69 1024.619 27.75 27.62 10.572 3.55952 5.00326 31.94 1488.62 1024.593 28.05 27.92 10.537 3.55851 5.00683 31.96 1488.52 1024.617 28.35 28.22 10.502 3.55581 5.00784 31.96 1488.41 1024.626 28.65 28.52 10.447 3.55437 5.01371 32.00 1488.26 1024.664 28.96 28.83 10.434 3.55542 5.01699 32.02 1488.24 1024.684