*2026/01/16 09:57:54.61 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/09/04 22:07:19.000 END TIME : UTC 2024/09/04 22:07:39.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 102 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 30.4 2 Depth metres 0.15 30.28 3 Temperature 'deg C (ITS90)' 9.99 17.803 4 Conductivity S/m 3.5244 3.79319 5 Conductance:Specific S/m 4.30747 5.03882 6 Salinity PSS-78 27.55 32.12 7 Speed:Sound m/s 1486.73 1506.81 8 Density kg/m^3 1019.626 1024.833 $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 : 244 LATITUDE : 48 57.87140 N ! (deg min) LONGITUDE : 125 3.43180 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240904_220719 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:06 102 102 MERGEHDR 1.3 2026/01/16 09:54:06 102 102 HDREDIT2 3.2 2026/01/16 09:55:11 ? ? REMOVECH 8.2 2026/01/16 09:56:22 102 102 CALIB 12.1 2026/01/16 09:56:55 102 102 CLEAN 5.3 2026/01/16 09:57:54 102 102 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:11 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 09:56:22 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:55 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 17.803 3.69214 4.31297 27.59 1506.80 1019.655 0.45 0.45 17.803 3.68747 4.30747 27.55 1506.76 1019.626 0.75 0.75 17.797 3.69371 4.31541 27.61 1506.81 1019.672 1.05 1.05 17.777 3.69289 4.31647 27.61 1506.76 1019.683 1.35 1.35 17.763 3.69164 4.31642 27.61 1506.73 1019.687 1.65 1.65 17.700 3.69004 4.32084 27.64 1506.58 1019.725 1.95 1.95 17.605 3.68141 4.32044 27.64 1506.28 1019.743 2.25 2.25 17.463 3.67765 4.33042 27.70 1505.93 1019.826 2.55 2.55 17.316 3.68916 4.35910 27.90 1505.72 1020.012 2.85 2.85 17.240 3.70611 4.38696 28.09 1505.71 1020.180 3.15 3.15 17.139 3.71645 4.40978 28.25 1505.59 1020.324 3.45 3.45 17.097 3.74211 4.44463 28.50 1505.75 1020.523 3.75 3.75 16.736 3.77393 4.52119 29.02 1505.25 1021.011 4.05 4.05 16.194 3.79319 4.60410 29.59 1504.22 1021.564 4.35 4.35 16.042 3.79125 4.61872 29.68 1503.86 1021.673 4.65 4.65 15.719 3.77697 4.63781 29.80 1502.99 1021.835 4.95 4.95 15.056 3.75944 4.69274 30.15 1501.29 1022.247 5.25 5.24 14.544 3.73762 4.72589 30.35 1499.88 1022.511 5.55 5.54 14.101 3.72535 4.76378 30.59 1498.72 1022.786 5.85 5.84 13.673 3.71455 4.80247 30.83 1497.60 1023.060 6.15 6.14 13.363 3.69885 4.82085 30.94 1496.70 1023.204 6.45 6.44 13.115 3.68724 4.83698 31.03 1495.99 1023.326 6.75 6.74 12.919 3.67490 4.84574 31.07 1495.38 1023.401 7.05 7.04 12.643 3.66953 4.87408 31.25 1494.67 1023.591 7.35 7.34 12.489 3.66765 4.89162 31.36 1494.28 1023.707 7.65 7.64 12.340 3.66202 4.90356 31.43 1493.86 1023.791 7.95 7.93 12.250 3.65771 4.90966 31.47 1493.60 1023.836 8.25 8.23 12.179 3.65523 4.91576 31.50 1493.40 1023.879 8.55 8.53 12.094 3.65199 4.92265 31.54 1493.16 1023.927 8.85 8.83 12.063 3.65219 4.92702 31.57 1493.09 1023.956 9.15 9.13 12.016 3.64908 4.92901 31.58 1492.95 1023.973 9.45 9.43 11.975 3.64484 4.92882 31.57 1492.80 1023.978 9.75 9.73 11.931 3.64250 4.93145 31.59 1492.67 1023.998 10.05 10.02 11.855 3.63862 4.93638 31.62 1492.45 1024.035 10.35 10.32 11.809 3.63471 4.93727 31.62 1492.30 1024.045 10.65 10.62 11.735 3.62850 4.93869 31.62 1492.05 1024.062 10.95 10.92 11.680 3.62341 4.93928 31.62 1491.86 1024.072 11.25 11.22 11.627 3.62141 4.94363 31.64 1491.71 1024.103 11.55 11.52 11.575 3.62035 4.94918 31.68 1491.57 1024.139 11.85 11.82 11.526 3.61974 4.95497 31.71 1491.45 1024.177 12.15 12.12 11.494 3.61857 4.95779 31.73 1491.36 1024.197 12.45 12.41 11.477 3.61815 4.95946 31.74 1491.32 1024.209 12.75 12.71 11.464 3.61667 4.95925 31.74 1491.28 1024.211 13.05 13.01 11.450 3.61606 4.96029 31.74 1491.24 1024.219 13.35 13.31 11.431 3.61546 4.96205 31.75 1491.19 1024.232 13.65 13.61 11.403 3.61443 4.96442 31.77 1491.12 1024.249 13.95 13.91 11.364 3.61336 4.96834 31.79 1491.01 1024.275 14.25 14.21 11.279 3.60486 4.96819 31.78 1490.71 1024.284 14.55 14.50 11.289 3.60388 4.96550 31.76 1490.72 1024.269 14.85 14.80 11.191 3.59828 4.97130 31.79 1490.42 1024.311 15.15 15.10 11.173 3.59784 4.97310 31.80 1490.38 1024.324 15.45 15.40 11.150 3.59681 4.97491 31.81 1490.31 1024.337 15.75 15.70 11.133 3.59567 4.97563 31.81 1490.26 1024.344 16.05 16.00 11.125 3.59495 4.97571 31.81 1490.24 1024.346 16.35 16.30 11.111 3.59521 4.97802 31.83 1490.21 1024.362 16.65 16.59 11.097 3.59487 4.97940 31.84 1490.18 1024.372 16.95 16.89 11.075 3.59336 4.98045 31.84 1490.11 1024.381 17.25 17.19 11.061 3.59299 4.98187 31.85 1490.07 1024.391 17.55 17.49 11.023 3.58933 4.98201 31.85 1489.94 1024.396 17.85 17.79 10.967 3.58797 4.98789 31.88 1489.79 1024.435 18.15 18.09 10.940 3.58418 4.98631 31.87 1489.68 1024.430 18.45 18.38 10.914 3.58120 4.98575 31.86 1489.59 1024.430 18.75 18.68 10.866 3.57791 4.98786 31.87 1489.43 1024.447 19.05 18.98 10.817 3.57746 4.99413 31.91 1489.31 1024.487 19.35 19.28 10.802 3.57720 4.99576 31.92 1489.27 1024.498 19.65 19.58 10.780 3.57650 4.99787 31.93 1489.22 1024.513 19.95 19.88 10.769 3.57503 4.99744 31.92 1489.17 1024.513 20.25 20.18 10.723 3.57138 4.99873 31.93 1489.02 1024.525 20.55 20.47 10.643 3.56701 5.00376 31.95 1488.77 1024.560 20.85 20.77 10.559 3.55429 4.99775 31.90 1488.41 1024.535 21.15 21.07 10.475 3.54863 5.00166 31.92 1488.14 1024.564 21.45 21.37 10.407 3.54599 5.00750 31.95 1487.94 1024.602 21.75 21.67 10.364 3.54439 5.01133 31.97 1487.82 1024.628 22.05 21.97 10.335 3.54389 5.01466 31.99 1487.74 1024.650 22.35 22.27 10.327 3.54391 5.01586 32.00 1487.73 1024.658 22.65 22.56 10.306 3.54388 5.01875 32.02 1487.68 1024.677 22.95 22.86 10.263 3.54110 5.02104 32.03 1487.54 1024.694 23.25 23.16 10.244 3.53983 5.02194 32.03 1487.48 1024.701 23.55 23.46 10.225 3.53894 5.02329 32.04 1487.43 1024.711 23.85 23.76 10.203 3.53559 5.02168 32.03 1487.34 1024.705 24.15 24.06 10.173 3.53615 5.02679 32.06 1487.27 1024.737 24.45 24.35 10.162 3.53689 5.02944 32.07 1487.26 1024.753 24.75 24.65 10.144 3.53629 5.03108 32.08 1487.21 1024.765 25.05 24.95 10.145 3.53463 5.02857 32.07 1487.20 1024.752 25.35 25.25 10.122 3.53319 5.02984 32.07 1487.13 1024.762 25.65 25.55 10.089 3.53078 5.03114 32.08 1487.02 1024.772 25.95 25.85 10.081 3.52877 5.02950 32.06 1486.98 1024.765 26.25 26.15 10.051 3.52747 5.03186 32.08 1486.89 1024.781 26.55 26.44 10.039 3.52607 5.03162 32.07 1486.85 1024.782 26.85 26.74 10.012 3.52615 5.03560 32.10 1486.79 1024.807 27.15 27.04 10.008 3.52513 5.03481 32.09 1486.77 1024.804 27.45 27.34 10.008 3.52466 5.03401 32.09 1486.77 1024.801 27.75 27.64 9.993 3.52440 5.03585 32.10 1486.73 1024.813 28.05 27.94 9.990 3.52542 5.03777 32.11 1486.74 1024.826 28.35 28.23 9.991 3.52626 5.03882 32.12 1486.76 1024.833 28.65 28.53 10.002 3.52583 5.03661 32.10 1486.78 1024.821 28.95 28.83 10.003 3.52571 5.03628 32.10 1486.79 1024.820 29.25 29.13 10.005 3.52698 5.03779 32.11 1486.82 1024.830 29.55 29.43 10.010 3.52637 5.03622 32.10 1486.83 1024.822 29.85 29.73 10.011 3.52620 5.03588 32.10 1486.83 1024.821 30.15 30.02 10.005 3.52610 5.03661 32.10 1486.82 1024.827 30.40 30.28 10.009 3.52542 5.03507 32.09 1486.82 1024.819