*2026/01/16 10:37:57.11 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/06/26 01:14:17.000 END TIME : UTC 2025/06/26 01:14:37.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 103 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 30.89 2 Depth metres 0.15 30.78 3 Temperature 'deg C (ITS90)' 9.764 16.815 4 Conductivity S/m 3.21597 3.64297 5 Conductance:Specific S/m 3.84993 4.989 6 Salinity PSS-78 24.29 31.74 7 Speed:Sound m/s 1485.49 1501.19 8 Density kg/m^3 1017.369 1024.579 $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 : 199 LATITUDE : 48 54.62240 N ! (deg min) LONGITUDE : 125 0.75990 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250626_011417 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:33 103 103 MERGEHDR 1.3 2026/01/16 10:35:47 103 103 HDREDIT2 3.2 2026/01/16 10:36:18 ? ? REMOVECH 8.2 2026/01/16 10:36:50 103 103 CALIB 12.1 2026/01/16 10:37:20 103 103 CLEAN 5.3 2026/01/16 10:37:57 103 103 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:18 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 10:36:50 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:20 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 16.731 3.22185 3.86025 24.36 1499.85 1017.430 0.45 0.45 16.767 3.21597 3.84993 24.29 1499.89 1017.369 0.75 0.75 16.815 3.27801 3.91971 24.78 1500.60 1017.734 1.05 1.05 16.796 3.34402 4.00040 25.34 1501.19 1018.170 1.35 1.35 16.710 3.36288 4.03125 25.56 1501.17 1018.353 1.65 1.65 16.630 3.36302 4.03923 25.61 1500.98 1018.412 1.95 1.95 16.609 3.35957 4.03704 25.59 1500.91 1018.405 2.25 2.25 16.631 3.36405 4.04036 25.62 1501.00 1018.420 2.55 2.55 16.646 3.37442 4.05131 25.70 1501.15 1018.478 2.85 2.85 16.622 3.38337 4.06438 25.79 1501.18 1018.554 3.15 3.15 16.581 3.39323 4.08025 25.90 1501.18 1018.648 3.45 3.45 16.534 3.40085 4.09406 25.99 1501.15 1018.732 3.75 3.75 16.360 3.41097 4.12350 26.19 1500.84 1018.923 4.05 4.05 16.042 3.42125 4.16801 26.49 1500.18 1019.221 4.35 4.35 15.414 3.52949 4.36667 27.85 1499.77 1020.405 4.65 4.65 15.008 3.64060 4.54982 29.13 1499.95 1021.470 4.95 4.95 14.561 3.64297 4.60429 29.49 1498.92 1021.839 5.25 5.25 14.000 3.62715 4.65018 29.77 1497.43 1022.175 5.55 5.55 13.339 3.60420 4.70041 30.08 1495.60 1022.542 5.85 5.85 12.841 3.58748 4.74017 30.32 1494.21 1022.825 6.15 6.15 12.483 3.57910 4.77429 30.53 1493.25 1023.056 6.45 6.45 12.252 3.57644 4.80031 30.69 1492.65 1023.227 6.75 6.75 12.100 3.57432 4.81714 30.79 1492.26 1023.338 7.05 7.05 12.045 3.57397 4.82381 30.84 1492.12 1023.381 7.35 7.34 11.978 3.57223 4.83020 30.87 1491.94 1023.425 7.65 7.64 11.893 3.57105 4.83977 30.93 1491.72 1023.488 7.95 7.94 11.810 3.56793 4.84647 30.97 1491.49 1023.534 8.25 8.24 11.750 3.56443 4.84961 30.99 1491.30 1023.559 8.55 8.54 11.714 3.56055 4.84901 30.98 1491.18 1023.561 8.85 8.84 11.669 3.55993 4.85411 31.01 1491.06 1023.595 9.15 9.14 11.623 3.55868 4.85848 31.04 1490.94 1023.624 9.45 9.44 11.594 3.55657 4.85945 31.04 1490.85 1023.634 9.75 9.74 11.556 3.55553 4.86315 31.06 1490.74 1023.659 10.05 10.03 11.514 3.55477 4.86763 31.09 1490.64 1023.689 10.35 10.33 11.479 3.55244 4.86911 31.10 1490.53 1023.702 10.65 10.63 11.427 3.55003 4.87282 31.12 1490.37 1023.729 10.95 10.93 11.384 3.54898 4.87712 31.14 1490.26 1023.758 11.25 11.23 11.302 3.54539 4.88324 31.18 1490.02 1023.800 11.55 11.53 11.240 3.54415 4.88981 31.22 1489.85 1023.843 11.85 11.83 11.184 3.53950 4.89098 31.22 1489.66 1023.856 12.15 12.12 11.121 3.53690 4.89590 31.25 1489.48 1023.890 12.45 12.42 11.056 3.53353 4.90005 31.27 1489.28 1023.920 12.75 12.72 10.990 3.53049 4.90482 31.30 1489.08 1023.953 13.05 13.02 10.924 3.52776 4.90998 31.33 1488.89 1023.988 13.35 13.32 10.858 3.52446 4.91444 31.35 1488.69 1024.020 13.65 13.62 10.813 3.52200 4.91727 31.36 1488.55 1024.040 13.95 13.92 10.767 3.52141 4.92268 31.40 1488.43 1024.075 14.25 14.22 10.719 3.51837 4.92500 31.41 1488.28 1024.093 14.55 14.51 10.678 3.51467 4.92561 31.41 1488.14 1024.101 14.85 14.81 10.628 3.51161 4.92818 31.42 1487.98 1024.120 15.15 15.11 10.585 3.51083 4.93300 31.45 1487.87 1024.151 15.45 15.41 10.545 3.50752 4.93391 31.45 1487.73 1024.161 15.75 15.71 10.507 3.50561 4.93652 31.46 1487.61 1024.179 16.05 16.01 10.486 3.50439 4.93769 31.47 1487.55 1024.189 16.35 16.31 10.463 3.50233 4.93798 31.47 1487.47 1024.193 16.65 16.60 10.433 3.50178 4.94137 31.49 1487.40 1024.215 16.95 16.90 10.412 3.50103 4.94325 31.50 1487.34 1024.229 17.25 17.20 10.386 3.49890 4.94391 31.50 1487.25 1024.235 17.55 17.50 10.364 3.49979 4.94831 31.53 1487.21 1024.262 17.85 17.80 10.349 3.49847 4.94840 31.53 1487.16 1024.265 18.15 18.10 10.339 3.49749 4.94847 31.53 1487.13 1024.268 18.45 18.40 10.323 3.49856 4.95225 31.55 1487.10 1024.291 18.75 18.69 10.308 3.49704 4.95224 31.55 1487.05 1024.293 19.05 18.99 10.293 3.49490 4.95122 31.54 1486.99 1024.290 19.35 19.29 10.279 3.49375 4.95161 31.54 1486.95 1024.294 19.65 19.59 10.265 3.49308 4.95260 31.55 1486.91 1024.302 19.95 19.89 10.251 3.49251 4.95373 31.55 1486.87 1024.310 20.25 20.19 10.243 3.49253 4.95494 31.56 1486.86 1024.319 20.55 20.49 10.238 3.49364 4.95722 31.57 1486.86 1024.333 20.85 20.78 10.233 3.49231 4.95597 31.57 1486.84 1024.328 21.15 21.08 10.232 3.49219 4.95605 31.57 1486.84 1024.330 21.45 21.38 10.229 3.49248 4.95688 31.57 1486.84 1024.336 21.75 21.68 10.225 3.49357 4.95896 31.59 1486.85 1024.349 22.05 21.98 10.219 3.49251 4.95833 31.58 1486.82 1024.347 22.35 22.28 10.207 3.49175 4.95886 31.58 1486.79 1024.352 22.65 22.58 10.166 3.49026 4.96262 31.60 1486.67 1024.377 22.95 22.87 10.103 3.48563 4.96486 31.61 1486.46 1024.395 23.25 23.17 10.043 3.47949 4.96466 31.60 1486.23 1024.399 23.55 23.47 9.986 3.47721 4.96949 31.63 1486.06 1024.430 23.85 23.77 9.954 3.47694 4.97364 31.65 1485.98 1024.456 24.15 24.07 9.920 3.47529 4.97601 31.67 1485.88 1024.473 24.45 24.37 9.890 3.47387 4.97828 31.68 1485.79 1024.489 24.75 24.67 9.866 3.47179 4.97875 31.68 1485.71 1024.494 25.05 24.96 9.839 3.47044 4.98070 31.69 1485.63 1024.508 25.35 25.26 9.818 3.46951 4.98234 31.70 1485.57 1024.519 25.65 25.56 9.809 3.46900 4.98289 31.70 1485.54 1024.524 25.95 25.86 9.802 3.46990 4.98526 31.71 1485.54 1024.539 26.25 26.16 9.796 3.46930 4.98526 31.71 1485.52 1024.540 26.55 26.46 9.791 3.46926 4.98582 31.72 1485.52 1024.545 26.85 26.75 9.789 3.46906 4.98591 31.72 1485.51 1024.547 27.15 27.05 9.783 3.46862 4.98602 31.72 1485.50 1024.549 27.45 27.35 9.782 3.46824 4.98563 31.71 1485.49 1024.548 27.75 27.65 9.782 3.46822 4.98561 31.71 1485.50 1024.549 28.05 27.95 9.784 3.46841 4.98562 31.71 1485.51 1024.551 28.35 28.25 9.784 3.46801 4.98510 31.71 1485.51 1024.549 28.65 28.55 9.781 3.46790 4.98535 31.71 1485.51 1024.552 28.95 28.84 9.780 3.46921 4.98740 31.73 1485.52 1024.564 29.25 29.14 9.779 3.47025 4.98900 31.74 1485.54 1024.575 29.55 29.44 9.781 3.46904 4.98700 31.72 1485.53 1024.565 29.85 29.74 9.781 3.46864 4.98646 31.72 1485.53 1024.563 30.15 30.04 9.779 3.46825 4.98608 31.72 1485.53 1024.562 30.45 30.34 9.775 3.46896 4.98776 31.73 1485.53 1024.573 30.89 30.78 9.764 3.46835 4.98839 31.73 1485.50 1024.579