*2026/01/16 10:37:56.96 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/06/25 23:28:31.000 END TIME : UTC 2025/06/25 23:28:55.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 123 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 36.72 2 Depth metres 0.15 36.57 3 Temperature 'deg C (ITS90)' 9.323 16.218 4 Conductivity S/m 3.01955 3.58468 5 Conductance:Specific S/m 3.66294 5.02703 6 Salinity PSS-78 22.97 31.94 7 Speed:Sound m/s 1484.19 1499.32 8 Density kg/m^3 1016.476 1024.839 $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 : 196 LATITUDE : 48 57.57630 N ! (deg min) LONGITUDE : 124 59.25310 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250625_232831 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:33 123 123 MERGEHDR 1.3 2026/01/16 10:35:47 123 123 HDREDIT2 3.2 2026/01/16 10:36:18 ? ? REMOVECH 8.2 2026/01/16 10:36:49 123 123 CALIB 12.1 2026/01/16 10:37:20 123 123 CLEAN 5.3 2026/01/16 10:37:56 123 123 $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 10:36:49 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 16.218 3.01955 3.66294 22.97 1496.64 1016.476 0.45 0.45 16.198 3.02013 3.66539 22.99 1496.61 1016.494 0.75 0.75 16.176 3.02143 3.66896 23.01 1496.57 1016.518 1.05 1.05 16.153 3.02208 3.67177 23.03 1496.52 1016.538 1.35 1.35 16.144 3.02544 3.67667 23.06 1496.53 1016.567 1.65 1.65 15.976 3.08710 3.76692 23.68 1496.72 1017.076 1.95 1.96 15.751 3.29477 4.04259 25.59 1498.20 1018.588 2.25 2.26 15.616 3.40494 4.19158 26.63 1498.97 1019.414 2.55 2.56 15.433 3.48063 4.30415 27.41 1499.29 1020.055 2.85 2.85 15.241 3.52791 4.38348 27.96 1499.32 1020.519 3.15 3.15 14.967 3.54949 4.44055 28.35 1498.89 1020.875 3.45 3.45 14.514 3.56214 4.50748 28.80 1497.94 1021.311 3.75 3.75 14.059 3.57636 4.57820 29.27 1497.00 1021.766 4.05 4.05 13.576 3.58468 4.64629 29.71 1495.93 1022.208 4.35 4.35 13.216 3.58180 4.68631 29.97 1495.03 1022.476 4.65 4.65 12.856 3.57533 4.72221 30.19 1494.09 1022.720 4.95 4.95 12.554 3.57010 4.75330 30.38 1493.30 1022.928 5.25 5.25 12.337 3.56580 4.77514 30.52 1492.72 1023.074 5.55 5.55 12.176 3.56232 4.79115 30.62 1492.29 1023.181 5.85 5.85 12.027 3.55977 4.80704 30.72 1491.90 1023.286 6.15 6.15 11.916 3.55899 4.82043 30.80 1491.62 1023.373 6.45 6.44 11.842 3.55775 4.82842 30.85 1491.43 1023.426 6.75 6.74 11.785 3.55662 4.83432 30.88 1491.28 1023.465 7.05 7.04 11.730 3.55552 4.84004 30.92 1491.13 1023.503 7.35 7.34 11.665 3.55479 4.84772 30.97 1490.97 1023.553 7.65 7.64 11.622 3.55339 4.85143 30.99 1490.85 1023.579 7.95 7.94 11.591 3.55321 4.85527 31.01 1490.78 1023.605 8.25 8.24 11.545 3.55090 4.85828 31.03 1490.64 1023.627 8.55 8.54 11.490 3.54918 4.86327 31.06 1490.49 1023.661 8.85 8.83 11.438 3.54771 4.86813 31.09 1490.34 1023.694 9.15 9.13 11.385 3.54456 4.87092 31.10 1490.18 1023.716 9.45 9.43 11.326 3.54119 4.87419 31.12 1490.00 1023.741 9.75 9.73 11.259 3.53949 4.88089 31.16 1489.81 1023.785 10.05 10.03 11.190 3.53558 4.88475 31.18 1489.60 1023.814 10.35 10.33 11.139 3.53372 4.88912 31.20 1489.46 1023.844 10.65 10.63 11.100 3.53270 4.89295 31.23 1489.35 1023.869 10.95 10.93 11.042 3.52757 4.89369 31.22 1489.15 1023.880 11.25 11.22 10.948 3.52244 4.89941 31.25 1488.86 1023.921 11.55 11.52 10.886 3.51896 4.90301 31.27 1488.66 1023.947 11.85 11.82 10.805 3.51683 4.91116 31.32 1488.44 1024.000 12.15 12.12 10.666 3.50919 4.91949 31.36 1488.00 1024.058 12.45 12.42 10.560 3.49902 4.91986 31.35 1487.62 1024.070 12.75 12.72 10.476 3.49557 4.92663 31.39 1487.37 1024.115 13.05 13.02 10.376 3.49152 4.93484 31.44 1487.07 1024.168 13.35 13.31 10.316 3.48520 4.93435 31.43 1486.84 1024.171 13.65 13.61 10.281 3.48467 4.93840 31.45 1486.75 1024.197 13.95 13.91 10.242 3.48412 4.94311 31.48 1486.65 1024.227 14.25 14.21 10.216 3.48315 4.94541 31.49 1486.58 1024.243 14.55 14.51 10.203 3.48270 4.94655 31.50 1486.54 1024.251 14.85 14.81 10.195 3.48191 4.94658 31.50 1486.52 1024.254 15.15 15.11 10.187 3.48266 4.94872 31.51 1486.51 1024.267 15.45 15.40 10.180 3.48219 4.94913 31.51 1486.49 1024.271 15.75 15.70 10.160 3.48139 4.95074 31.52 1486.44 1024.283 16.05 16.00 10.137 3.47975 4.95171 31.53 1486.36 1024.291 16.35 16.30 10.123 3.48011 4.95415 31.54 1486.34 1024.306 16.65 16.60 10.111 3.47892 4.95412 31.54 1486.30 1024.308 16.95 16.90 10.102 3.47825 4.95451 31.54 1486.27 1024.312 17.25 17.20 10.089 3.47719 4.95476 31.54 1486.23 1024.316 17.55 17.49 10.074 3.47537 4.95438 31.54 1486.17 1024.316 17.85 17.79 10.052 3.47426 4.95592 31.54 1486.11 1024.327 18.15 18.09 10.032 3.47393 4.95825 31.56 1486.06 1024.343 18.45 18.39 10.023 3.47554 4.96180 31.58 1486.06 1024.364 18.75 18.69 10.005 3.47634 4.96549 31.60 1486.03 1024.387 19.05 18.99 9.989 3.47560 4.96673 31.61 1485.98 1024.396 19.35 19.29 9.958 3.47407 4.96893 31.62 1485.89 1024.411 19.65 19.58 9.934 3.47222 4.96971 31.62 1485.81 1024.418 19.95 19.88 9.922 3.47090 4.96951 31.62 1485.77 1024.419 20.25 20.18 9.904 3.46989 4.97062 31.63 1485.71 1024.428 20.55 20.48 9.878 3.46833 4.97207 31.63 1485.63 1024.439 20.85 20.78 9.867 3.46909 4.97474 31.65 1485.62 1024.455 21.15 21.08 9.857 3.46959 4.97693 31.67 1485.60 1024.469 21.45 21.38 9.839 3.47028 4.98050 31.69 1485.57 1024.491 21.75 21.67 9.823 3.46866 4.98041 31.69 1485.51 1024.493 22.05 21.97 9.817 3.46585 4.97722 31.66 1485.47 1024.477 22.35 22.27 9.807 3.46586 4.97867 31.67 1485.45 1024.487 22.65 22.57 9.795 3.46566 4.98004 31.68 1485.42 1024.496 22.95 22.87 9.790 3.46584 4.98113 31.69 1485.41 1024.504 23.25 23.17 9.786 3.46646 4.98261 31.70 1485.41 1024.514 23.55 23.47 9.783 3.46652 4.98304 31.70 1485.41 1024.517 23.85 23.76 9.781 3.46695 4.98405 31.70 1485.42 1024.524 24.15 24.06 9.773 3.46695 4.98513 31.71 1485.40 1024.532 24.45 24.36 9.765 3.46689 4.98614 31.72 1485.39 1024.539 24.75 24.66 9.748 3.46708 4.98885 31.73 1485.35 1024.557 25.05 24.96 9.739 3.46601 4.98867 31.73 1485.32 1024.557 25.35 25.26 9.729 3.46637 4.99067 31.74 1485.30 1024.570 25.65 25.55 9.715 3.46548 4.99139 31.75 1485.26 1024.576 25.95 25.85 9.702 3.46543 4.99313 31.76 1485.23 1024.588 26.25 26.15 9.691 3.46596 4.99545 31.77 1485.21 1024.603 26.55 26.45 9.660 3.46501 4.99851 31.79 1485.13 1024.622 26.85 26.75 9.639 3.46308 4.99881 31.79 1485.05 1024.627 27.15 27.05 9.630 3.46211 4.99870 31.79 1485.02 1024.628 27.45 27.35 9.619 3.46047 4.99797 31.78 1484.98 1024.626 27.75 27.64 9.596 3.45980 5.00030 31.79 1484.91 1024.641 28.05 27.94 9.574 3.45941 5.00298 31.81 1484.86 1024.658 28.35 28.24 9.555 3.45909 5.00517 31.82 1484.81 1024.673 28.65 28.54 9.541 3.45857 5.00654 31.83 1484.77 1024.682 28.95 28.84 9.531 3.45779 5.00672 31.83 1484.74 1024.685 29.25 29.14 9.515 3.45716 5.00817 31.84 1484.70 1024.695 29.55 29.43 9.501 3.45628 5.00894 31.84 1484.65 1024.701 29.85 29.73 9.464 3.45493 5.01231 31.86 1484.55 1024.723 30.15 30.03 9.421 3.45236 5.01495 31.87 1484.41 1024.741 30.45 30.33 9.385 3.45169 5.01912 31.90 1484.31 1024.767 30.75 30.63 9.362 3.45043 5.02075 31.90 1484.24 1024.779 31.05 30.93 9.353 3.45118 5.02312 31.92 1484.23 1024.793 31.35 31.23 9.349 3.45039 5.02250 31.91 1484.22 1024.792 31.65 31.52 9.348 3.45082 5.02334 31.92 1484.22 1024.797 31.95 31.82 9.347 3.45062 5.02324 31.92 1484.22 1024.798 32.25 32.12 9.339 3.45077 5.02451 31.93 1484.21 1024.807 32.55 32.42 9.335 3.45046 5.02471 31.93 1484.20 1024.809 32.85 32.72 9.334 3.45034 5.02470 31.93 1484.20 1024.811 33.15 33.02 9.335 3.45043 5.02467 31.93 1484.21 1024.812 33.45 33.31 9.334 3.45021 5.02442 31.92 1484.21 1024.812 33.75 33.61 9.330 3.44985 5.02448 31.92 1484.20 1024.813 34.05 33.91 9.327 3.45032 5.02566 31.93 1484.20 1024.821 34.35 34.21 9.327 3.44931 5.02424 31.92 1484.19 1024.815 34.65 34.51 9.326 3.45080 5.02653 31.94 1484.21 1024.829 34.95 34.81 9.326 3.45008 5.02550 31.93 1484.21 1024.824 35.25 35.10 9.326 3.45048 5.02606 31.93 1484.22 1024.829 35.55 35.40 9.326 3.45021 5.02562 31.93 1484.22 1024.828 35.85 35.70 9.326 3.45011 5.02549 31.93 1484.22 1024.828 36.15 36.00 9.323 3.45049 5.02648 31.94 1484.23 1024.835 36.45 36.30 9.323 3.45011 5.02589 31.93 1484.23 1024.833 36.72 36.57 9.356 3.45417 5.02703 31.94 1484.37 1024.839