*2026/01/16 09:57:49.56 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/04/24 17:41:48.000 END TIME : UTC 2024/04/24 17:42:11.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 118 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 35.12 2 Depth metres 0.15 34.97 3 Temperature 'deg C (ITS90)' 9.981 12.225 4 Conductivity S/m 3.27596 3.50836 5 Conductance:Specific S/m 4.40173 5.01463 6 Salinity PSS-78 27.88 31.94 7 Speed:Sound m/s 1486.15 1489.21 8 Density kg/m^3 1021.026 1024.728 $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 : 88 LATITUDE : 48 53.85690 N ! (deg min) LONGITUDE : 125 1.31200 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240424_174148 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:57 118 118 MERGEHDR 1.3 2026/01/16 09:53:50 118 118 HDREDIT2 3.2 2026/01/16 09:55:03 ? ? REMOVECH 8.2 2026/01/16 09:56:15 118 118 CALIB 12.1 2026/01/16 09:56:48 118 118 CLEAN 5.3 2026/01/16 09:57:49 118 118 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:03 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 09:56:15 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:48 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 12.225 3.27708 4.40173 27.88 1489.11 1021.026 0.45 0.45 12.205 3.27716 4.40418 27.89 1489.07 1021.043 0.75 0.75 12.181 3.27676 4.40650 27.91 1489.00 1021.059 1.05 1.05 12.167 3.27643 4.40775 27.91 1488.97 1021.069 1.35 1.35 12.193 3.27596 4.40402 27.89 1489.04 1021.047 1.65 1.65 12.195 3.27907 4.40799 27.92 1489.08 1021.070 1.95 1.95 12.190 3.27998 4.40971 27.93 1489.08 1021.081 2.25 2.25 12.188 3.28043 4.41065 27.94 1489.09 1021.087 2.55 2.55 12.183 3.28034 4.41102 27.94 1489.08 1021.091 2.85 2.85 12.167 3.29553 4.43340 28.09 1489.21 1021.216 3.15 3.14 12.117 3.28757 4.42871 28.06 1489.00 1021.197 3.45 3.44 12.099 3.28921 4.43296 28.08 1488.98 1021.223 3.75 3.74 12.056 3.29446 4.44520 28.17 1488.93 1021.296 4.05 4.04 11.991 3.29685 4.45634 28.24 1488.79 1021.365 4.35 4.34 11.934 3.30103 4.46884 28.32 1488.70 1021.440 4.65 4.64 11.858 3.30422 4.48232 28.41 1488.54 1021.523 4.95 4.94 11.775 3.31124 4.50202 28.54 1488.41 1021.640 5.25 5.24 11.555 3.34347 4.57326 29.02 1488.22 1022.052 5.55 5.54 11.379 3.40529 4.68036 29.76 1488.48 1022.655 5.85 5.84 11.182 3.43017 4.74022 30.16 1488.28 1023.003 6.15 6.14 11.033 3.43160 4.76170 30.29 1487.92 1023.135 6.45 6.44 10.913 3.43353 4.78036 30.41 1487.64 1023.249 6.75 6.74 10.825 3.43536 4.79459 30.50 1487.44 1023.336 7.05 7.03 10.739 3.43616 4.80724 30.58 1487.24 1023.413 7.35 7.33 10.689 3.43677 4.81494 30.63 1487.12 1023.461 7.65 7.63 10.653 3.43683 4.81983 30.66 1487.03 1023.492 7.95 7.93 10.613 3.43839 4.82742 30.71 1486.95 1023.538 8.25 8.23 10.585 3.43930 4.83255 30.74 1486.90 1023.570 8.55 8.53 10.554 3.44067 4.83868 30.78 1486.84 1023.607 8.85 8.83 10.519 3.44241 4.84593 30.83 1486.77 1023.651 9.15 9.13 10.503 3.44228 4.84788 30.84 1486.74 1023.664 9.45 9.42 10.483 3.44289 4.85145 30.86 1486.70 1023.686 9.75 9.72 10.474 3.44354 4.85363 30.88 1486.69 1023.700 10.05 10.02 10.472 3.44482 4.85568 30.89 1486.70 1023.713 10.35 10.32 10.475 3.44681 4.85811 30.91 1486.74 1023.727 10.65 10.62 10.476 3.44781 4.85938 30.92 1486.76 1023.736 10.95 10.92 10.471 3.44809 4.86039 30.92 1486.75 1023.743 11.25 11.22 10.450 3.45020 4.86628 30.96 1486.73 1023.778 11.55 11.52 10.414 3.45245 4.87438 31.01 1486.67 1023.827 11.85 11.81 10.398 3.45265 4.87697 31.03 1486.63 1023.843 12.15 12.11 10.375 3.45304 4.88057 31.05 1486.59 1023.866 12.45 12.41 10.355 3.45320 4.88359 31.07 1486.54 1023.885 12.75 12.71 10.337 3.45362 4.88666 31.09 1486.51 1023.905 13.05 13.01 10.332 3.45444 4.88860 31.10 1486.51 1023.917 13.35 13.31 10.326 3.45442 4.88938 31.11 1486.50 1023.923 13.65 13.61 10.315 3.45477 4.89132 31.12 1486.48 1023.936 13.95 13.91 10.300 3.45449 4.89307 31.13 1486.44 1023.948 14.25 14.20 10.288 3.45496 4.89537 31.15 1486.42 1023.963 14.55 14.50 10.279 3.45502 4.89668 31.15 1486.40 1023.972 14.85 14.80 10.260 3.45516 4.89952 31.17 1486.36 1023.990 15.15 15.10 10.245 3.45602 4.90279 31.19 1486.34 1024.010 15.45 15.40 10.239 3.45602 4.90366 31.20 1486.33 1024.017 15.75 15.70 10.235 3.45657 4.90508 31.21 1486.33 1024.026 16.05 16.00 10.229 3.45635 4.90551 31.21 1486.31 1024.030 16.35 16.29 10.224 3.45739 4.90773 31.23 1486.32 1024.044 16.65 16.59 10.215 3.45895 4.91119 31.25 1486.32 1024.065 16.95 16.89 10.204 3.45840 4.91191 31.25 1486.29 1024.071 17.25 17.19 10.196 3.45833 4.91292 31.26 1486.27 1024.078 17.55 17.49 10.190 3.45990 4.91599 31.28 1486.28 1024.097 17.85 17.79 10.187 3.46047 4.91726 31.29 1486.28 1024.105 18.15 18.09 10.173 3.46164 4.92084 31.31 1486.27 1024.127 18.45 18.38 10.155 3.46260 4.92479 31.34 1486.24 1024.151 18.75 18.68 10.136 3.46536 4.93139 31.38 1486.23 1024.190 19.05 18.98 10.124 3.46826 4.93715 31.42 1486.24 1024.224 19.35 19.28 10.100 3.47002 4.94302 31.46 1486.20 1024.259 19.65 19.58 10.073 3.47176 4.94930 31.50 1486.16 1024.297 19.95 19.88 10.059 3.47325 4.95337 31.53 1486.15 1024.322 20.25 20.18 10.046 3.47808 4.96211 31.59 1486.18 1024.372 20.55 20.47 10.034 3.48217 4.96970 31.64 1486.20 1024.416 20.85 20.77 10.025 3.48612 4.97665 31.69 1486.23 1024.456 21.15 21.07 10.015 3.48823 4.98104 31.71 1486.24 1024.482 21.45 21.37 10.010 3.48964 4.98378 31.73 1486.25 1024.499 21.75 21.67 10.008 3.48985 4.98434 31.74 1486.25 1024.503 22.05 21.97 10.007 3.49087 4.98603 31.75 1486.26 1024.514 22.35 22.27 10.005 3.49115 4.98663 31.75 1486.27 1024.518 22.65 22.56 10.004 3.49225 4.98842 31.76 1486.28 1024.530 22.95 22.86 10.003 3.49286 4.98937 31.77 1486.29 1024.536 23.25 23.16 10.002 3.49330 4.99016 31.78 1486.30 1024.542 23.55 23.46 10.001 3.49373 4.99088 31.78 1486.31 1024.547 23.85 23.76 9.999 3.49389 4.99139 31.78 1486.31 1024.551 24.15 24.06 9.998 3.49436 4.99216 31.79 1486.32 1024.557 24.45 24.36 9.998 3.49402 4.99182 31.79 1486.32 1024.556 24.75 24.65 9.998 3.49403 4.99182 31.79 1486.32 1024.558 25.05 24.95 9.997 3.49443 4.99247 31.79 1486.33 1024.562 25.35 25.25 9.997 3.49461 4.99275 31.79 1486.34 1024.565 25.65 25.55 9.997 3.49487 4.99315 31.80 1486.34 1024.569 25.95 25.85 9.996 3.49555 4.99427 31.80 1486.35 1024.576 26.25 26.15 9.995 3.49564 4.99444 31.80 1486.36 1024.579 26.55 26.44 9.994 3.49631 4.99555 31.81 1486.37 1024.586 26.85 26.74 9.994 3.49656 4.99593 31.82 1486.38 1024.589 27.15 27.04 9.994 3.49759 4.99738 31.83 1486.39 1024.599 27.45 27.34 9.994 3.49794 4.99792 31.83 1486.40 1024.603 27.75 27.64 9.994 3.49842 4.99863 31.83 1486.41 1024.608 28.05 27.94 9.993 3.49848 4.99882 31.83 1486.42 1024.610 28.35 28.24 9.992 3.49873 4.99931 31.84 1486.42 1024.615 28.65 28.53 9.993 3.49937 5.00009 31.84 1486.44 1024.620 28.95 28.83 9.993 3.49947 5.00024 31.84 1486.44 1024.622 29.25 29.13 9.992 3.49977 5.00076 31.85 1486.45 1024.626 29.55 29.43 9.991 3.50053 5.00204 31.86 1486.46 1024.635 29.85 29.73 9.990 3.49996 5.00130 31.85 1486.46 1024.632 30.15 30.03 9.991 3.50049 5.00197 31.86 1486.47 1024.637 30.45 30.33 9.992 3.50079 5.00233 31.86 1486.48 1024.640 30.75 30.62 9.991 3.50146 5.00331 31.87 1486.49 1024.647 31.05 30.92 9.990 3.50149 5.00350 31.87 1486.49 1024.649 31.35 31.22 9.990 3.50237 5.00485 31.88 1486.51 1024.658 31.65 31.52 9.991 3.50287 5.00543 31.88 1486.52 1024.662 31.95 31.82 9.990 3.50347 5.00638 31.89 1486.53 1024.669 32.25 32.12 9.991 3.50411 5.00709 31.89 1486.55 1024.674 32.55 32.41 9.992 3.50429 5.00731 31.89 1486.56 1024.676 32.85 32.71 9.996 3.50472 5.00726 31.89 1486.58 1024.677 33.15 33.01 9.993 3.50533 5.00861 31.90 1486.58 1024.686 33.45 33.31 9.990 3.50629 5.01042 31.91 1486.59 1024.697 33.75 33.61 9.987 3.50668 5.01135 31.92 1486.59 1024.704 34.05 33.91 9.987 3.50678 5.01155 31.92 1486.60 1024.706 34.35 34.21 9.986 3.50748 5.01264 31.93 1486.61 1024.714 34.65 34.50 9.985 3.50732 5.01263 31.93 1486.61 1024.715 34.95 34.80 9.981 3.50820 5.01444 31.94 1486.61 1024.726 35.12 34.97 9.981 3.50836 5.01463 31.94 1486.62 1024.728