*2026/01/16 10:37:50.63 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/04/08 23:49:22.000 END TIME : UTC 2025/04/08 23:49:40.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 94 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 28.13 2 Depth metres 0.15 28.08 3 Temperature 'deg C (ITS90)' 8.685 9.379 4 Conductivity S/m 1.35952 3.10341 5 Conductance:Specific S/m 1.97798 4.59972 6 Salinity PSS-78 11.52 28.87 7 Speed:Sound m/s 1458.93 1478.15 8 Density kg/m^3 1008.753 1022.494 $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 : 93 LATITUDE : 49 51.80800 N ! (deg min) LONGITUDE : 126 42.56470 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250408_234922 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:27 94 94 MERGEHDR 1.3 2026/01/16 10:35:41 94 94 HDREDIT2 3.2 2026/01/16 10:36:11 ? ? REMOVECH 8.2 2026/01/16 10:36:39 94 94 CALIB 12.1 2026/01/16 10:37:14 94 94 CLEAN 5.3 2026/01/16 10:37:50 94 94 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:11 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 10:36:39 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:14 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 9.366 1.35952 1.97798 11.52 1458.93 1008.753 0.45 0.45 9.320 1.43844 2.09564 12.26 1459.66 1009.337 0.75 0.76 9.296 1.74857 2.54926 15.17 1463.11 1011.603 1.05 1.06 9.298 2.07840 3.02987 18.31 1466.95 1014.050 1.35 1.36 9.325 2.21843 3.23151 19.65 1468.68 1015.090 1.65 1.66 9.366 2.35333 3.42395 20.93 1470.41 1016.088 1.95 1.96 9.373 2.52331 3.67046 22.59 1472.46 1017.380 2.25 2.26 9.370 2.63486 3.83307 23.69 1473.79 1018.240 2.55 2.56 9.378 2.71211 3.94451 24.45 1474.75 1018.832 2.85 2.86 9.379 2.76902 4.02721 25.02 1475.44 1019.273 3.15 3.16 9.372 2.81756 4.09868 25.50 1476.02 1019.656 3.45 3.46 9.368 2.88100 4.19141 26.14 1476.78 1020.154 3.75 3.76 9.366 2.89370 4.21010 26.27 1476.94 1020.256 4.05 4.06 9.365 2.89917 4.21822 26.32 1477.00 1020.301 4.35 4.36 9.361 2.91362 4.23968 26.47 1477.17 1020.417 4.65 4.66 9.353 2.94431 4.28543 26.79 1477.53 1020.665 4.95 4.96 9.344 2.95186 4.29753 26.87 1477.60 1020.732 5.25 5.26 9.337 2.95556 4.30377 26.91 1477.63 1020.767 5.55 5.56 9.331 2.96164 4.31331 26.97 1477.70 1020.820 5.85 5.86 9.318 2.96705 4.32286 27.04 1477.73 1020.874 6.15 6.16 9.310 2.97099 4.32962 27.08 1477.76 1020.912 6.45 6.46 9.307 2.97255 4.33233 27.10 1477.77 1020.928 6.75 6.76 9.298 2.97378 4.33522 27.12 1477.77 1020.945 7.05 7.06 9.294 2.97709 4.34052 27.16 1477.80 1020.975 7.35 7.36 9.289 2.98447 4.35189 27.24 1477.89 1021.038 7.65 7.66 9.276 2.99430 4.36793 27.34 1477.97 1021.126 7.95 7.96 9.270 2.99946 4.37621 27.40 1478.03 1021.173 8.25 8.26 9.257 3.00462 4.38542 27.46 1478.06 1021.224 8.55 8.56 9.225 3.00608 4.39166 27.50 1477.99 1021.261 8.85 8.85 9.199 3.00712 4.39648 27.53 1477.94 1021.290 9.15 9.15 9.199 3.00802 4.39785 27.54 1477.95 1021.299 9.45 9.45 9.209 3.00816 4.39670 27.54 1477.99 1021.293 9.75 9.75 9.194 3.01003 4.40137 27.57 1477.97 1021.320 10.05 10.05 9.165 3.01443 4.41159 27.63 1477.95 1021.378 10.35 10.35 9.159 3.01584 4.41441 27.65 1477.96 1021.395 10.65 10.65 9.159 3.01631 4.41515 27.66 1477.96 1021.401 10.95 10.95 9.157 3.01652 4.41564 27.66 1477.97 1021.405 11.25 11.25 9.156 3.01609 4.41519 27.66 1477.96 1021.403 11.55 11.55 9.153 3.01650 4.41610 27.66 1477.97 1021.410 11.85 11.85 9.150 3.01723 4.41758 27.67 1477.97 1021.419 12.15 12.15 9.148 3.01725 4.41786 27.67 1477.97 1021.422 12.45 12.45 9.144 3.01711 4.41819 27.67 1477.96 1021.425 12.75 12.75 9.136 3.01804 4.42057 27.69 1477.96 1021.440 13.05 13.05 9.127 3.01918 4.42345 27.71 1477.95 1021.457 13.35 13.35 9.119 3.02027 4.42604 27.73 1477.95 1021.473 13.65 13.65 9.110 3.02309 4.43137 27.76 1477.96 1021.503 13.95 13.94 9.098 3.02381 4.43401 27.78 1477.94 1021.520 14.25 14.24 9.083 3.02603 4.43920 27.81 1477.93 1021.550 14.55 14.54 9.069 3.02806 4.44404 27.84 1477.92 1021.578 14.85 14.84 9.047 3.02981 4.44952 27.88 1477.89 1021.610 15.15 15.14 9.024 3.03124 4.45458 27.91 1477.84 1021.640 15.45 15.44 9.001 3.03475 4.46274 27.96 1477.83 1021.686 15.75 15.74 8.980 3.03604 4.46733 27.99 1477.79 1021.713 16.05 16.04 8.963 3.03776 4.47212 28.02 1477.77 1021.741 16.35 16.34 8.952 3.03812 4.47421 28.04 1477.75 1021.754 16.65 16.64 8.939 3.03981 4.47832 28.06 1477.74 1021.779 16.95 16.94 8.926 3.04031 4.48085 28.08 1477.71 1021.794 17.25 17.24 8.915 3.04031 4.48230 28.09 1477.69 1021.804 17.55 17.54 8.892 3.04245 4.48843 28.13 1477.65 1021.839 17.85 17.84 8.873 3.04295 4.49170 28.15 1477.61 1021.859 18.15 18.13 8.856 3.04431 4.49600 28.18 1477.59 1021.884 18.45 18.43 8.829 3.04624 4.50237 28.22 1477.54 1021.921 18.75 18.73 8.810 3.04706 4.50611 28.24 1477.50 1021.944 19.05 19.03 8.794 3.04780 4.50935 28.26 1477.47 1021.963 19.35 19.33 8.773 3.04882 4.51369 28.29 1477.43 1021.989 19.65 19.63 8.756 3.05319 4.52248 28.35 1477.44 1022.039 19.95 19.93 8.738 3.05946 4.53412 28.42 1477.48 1022.104 20.25 20.23 8.712 3.06456 4.54519 28.50 1477.47 1022.166 20.55 20.53 8.700 3.06655 4.54979 28.53 1477.47 1022.193 20.85 20.83 8.690 3.06669 4.55128 28.54 1477.45 1022.202 21.15 21.13 8.685 3.06740 4.55309 28.55 1477.45 1022.214 21.45 21.43 8.687 3.06929 4.55562 28.57 1477.48 1022.229 21.75 21.72 8.691 3.07097 4.55755 28.58 1477.52 1022.240 22.05 22.02 8.699 3.07652 4.56473 28.63 1477.61 1022.280 22.35 22.32 8.710 3.08428 4.57471 28.70 1477.75 1022.335 22.65 22.62 8.722 3.08771 4.57822 28.73 1477.83 1022.355 22.95 22.92 8.725 3.09021 4.58142 28.75 1477.88 1022.373 23.25 23.22 8.727 3.09005 4.58101 28.75 1477.88 1022.372 23.55 23.52 8.728 3.09078 4.58189 28.75 1477.90 1022.378 23.85 23.82 8.728 3.09036 4.58131 28.75 1477.90 1022.376 24.15 24.12 8.728 3.09058 4.58159 28.75 1477.91 1022.379 24.45 24.42 8.728 3.09086 4.58203 28.75 1477.91 1022.383 24.75 24.72 8.729 3.09139 4.58275 28.76 1477.93 1022.388 25.05 25.02 8.729 3.09305 4.58512 28.77 1477.95 1022.402 25.35 25.31 8.731 3.09536 4.58827 28.80 1477.99 1022.420 25.65 25.61 8.733 3.09645 4.58970 28.81 1478.02 1022.429 25.95 25.91 8.733 3.09738 4.59107 28.82 1478.03 1022.438 26.25 26.21 8.734 3.09832 4.59234 28.82 1478.05 1022.446 26.55 26.51 8.735 3.10036 4.59515 28.84 1478.09 1022.463 26.85 26.81 8.736 3.09984 4.59425 28.84 1478.09 1022.459 27.15 27.11 8.735 3.10129 4.59649 28.85 1478.11 1022.473 27.45 27.41 8.734 3.10201 4.59778 28.86 1478.12 1022.481 27.75 27.71 8.734 3.10283 4.59892 28.87 1478.14 1022.488 28.13 28.08 8.735 3.10341 4.59972 28.87 1478.15 1022.494