*2026/01/16 09:57:57.19 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/11/26 16:17:22.000 END TIME : UTC 2024/11/26 16:17:37.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 80 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 23.99 2 Depth metres 0.15 23.91 3 Temperature 'deg C (ITS90)' 9.028 10.907 4 Conductivity S/m 2.69706 3.47202 5 Conductance:Specific S/m 3.96304 4.83569 6 Salinity PSS-78 24.54 30.79 7 Speed:Sound m/s 1473.5 1488.36 8 Density kg/m^3 1018.942 1023.626 $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 : 306 LATITUDE : 48 51.14790 N ! (deg min) LONGITUDE : 125 11.87270 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20241126_161722 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:09 80 80 MERGEHDR 1.3 2026/01/16 09:54:12 80 80 HDREDIT2 3.2 2026/01/16 09:55:15 ? ? REMOVECH 8.2 2026/01/16 09:56:25 80 80 CALIB 12.1 2026/01/16 09:56:59 80 80 CLEAN 5.3 2026/01/16 09:57:57 80 80 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:15 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 09:56:25 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:59 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 9.174 2.71283 3.96913 24.60 1474.12 1018.965 0.45 0.45 9.028 2.69706 3.96304 24.54 1473.50 1018.942 0.75 0.75 9.096 2.71624 3.98327 24.69 1473.94 1019.047 1.05 1.05 9.111 2.73372 4.00712 24.85 1474.20 1019.174 1.35 1.35 9.116 2.74296 4.02006 24.94 1474.34 1019.244 1.65 1.65 9.219 2.76463 4.03962 25.08 1474.91 1019.344 1.95 1.95 9.489 2.89945 4.20344 26.24 1477.33 1020.205 2.25 2.25 9.661 3.08726 4.45357 27.98 1480.09 1021.543 2.55 2.55 9.799 3.15123 4.52776 28.52 1481.26 1021.938 2.85 2.85 9.958 3.17638 4.54309 28.64 1482.00 1022.011 3.15 3.15 10.063 3.21006 4.57755 28.89 1482.69 1022.193 3.45 3.45 10.166 3.22784 4.58947 28.99 1483.18 1022.252 3.75 3.75 10.288 3.25446 4.61135 29.15 1483.83 1022.363 4.05 4.05 10.380 3.28876 4.64772 29.42 1484.49 1022.556 4.35 4.34 10.462 3.31056 4.66775 29.57 1484.98 1022.660 4.65 4.64 10.491 3.33450 4.69768 29.78 1485.34 1022.823 4.95 4.94 10.535 3.35377 4.71894 29.94 1485.69 1022.937 5.25 5.24 10.584 3.36078 4.72230 29.97 1485.91 1022.953 5.55 5.54 10.613 3.36552 4.72517 29.99 1486.04 1022.967 5.85 5.84 10.640 3.37261 4.73153 30.04 1486.20 1023.001 6.15 6.14 10.657 3.37762 4.73626 30.07 1486.31 1023.027 6.45 6.44 10.666 3.37924 4.73738 30.08 1486.36 1023.034 6.75 6.74 10.669 3.38260 4.74162 30.11 1486.41 1023.058 7.05 7.03 10.676 3.38353 4.74202 30.11 1486.45 1023.061 7.35 7.33 10.677 3.38835 4.74860 30.16 1486.51 1023.098 7.65 7.63 10.685 3.39188 4.75254 30.19 1486.58 1023.120 7.95 7.93 10.688 3.39397 4.75511 30.21 1486.61 1023.135 8.25 8.23 10.687 3.39485 4.75642 30.22 1486.63 1023.144 8.55 8.53 10.687 3.39666 4.75894 30.23 1486.66 1023.159 8.85 8.83 10.693 3.39959 4.76223 30.26 1486.71 1023.178 9.15 9.13 10.707 3.40454 4.76727 30.29 1486.81 1023.206 9.45 9.43 10.714 3.40636 4.76891 30.31 1486.85 1023.215 9.75 9.72 10.729 3.40874 4.77026 30.32 1486.93 1023.223 10.05 10.02 10.733 3.41124 4.77317 30.34 1486.97 1023.240 10.35 10.32 10.738 3.41252 4.77431 30.35 1487.00 1023.247 10.65 10.62 10.740 3.41467 4.77712 30.37 1487.04 1023.263 10.95 10.92 10.741 3.41591 4.77866 30.38 1487.06 1023.273 11.25 11.22 10.738 3.41701 4.78061 30.39 1487.07 1023.285 11.55 11.52 10.737 3.41755 4.78152 30.40 1487.08 1023.291 11.85 11.82 10.733 3.41997 4.78542 30.42 1487.10 1023.314 12.15 12.12 10.731 3.42199 4.78855 30.45 1487.13 1023.333 12.45 12.41 10.730 3.42243 4.78927 30.45 1487.14 1023.338 12.75 12.71 10.731 3.42284 4.78974 30.45 1487.15 1023.342 13.05 13.01 10.733 3.42235 4.78880 30.45 1487.15 1023.338 13.35 13.31 10.736 3.42341 4.78992 30.46 1487.17 1023.345 13.65 13.61 10.739 3.42340 4.78951 30.45 1487.19 1023.344 13.95 13.91 10.737 3.42382 4.79031 30.46 1487.19 1023.350 14.25 14.21 10.738 3.42407 4.79049 30.46 1487.20 1023.352 14.55 14.51 10.740 3.42351 4.78945 30.45 1487.21 1023.347 14.85 14.81 10.740 3.42420 4.79042 30.46 1487.22 1023.354 15.15 15.10 10.745 3.42477 4.79061 30.46 1487.24 1023.356 15.45 15.40 10.751 3.42762 4.79380 30.48 1487.30 1023.374 15.75 15.70 10.756 3.42780 4.79328 30.48 1487.32 1023.372 16.05 16.00 10.755 3.42848 4.79437 30.49 1487.33 1023.380 16.35 16.30 10.757 3.42953 4.79561 30.50 1487.35 1023.387 16.65 16.60 10.760 3.42980 4.79563 30.50 1487.37 1023.389 16.95 16.90 10.755 3.43026 4.79690 30.51 1487.36 1023.397 17.25 17.20 10.764 3.43163 4.79762 30.51 1487.41 1023.402 17.55 17.50 10.769 3.43195 4.79734 30.51 1487.43 1023.401 17.85 17.79 10.771 3.43200 4.79718 30.51 1487.44 1023.401 18.15 18.09 10.768 3.43225 4.79800 30.51 1487.44 1023.407 18.45 18.39 10.769 3.43216 4.79766 30.51 1487.45 1023.407 18.75 18.69 10.774 3.43237 4.79727 30.51 1487.47 1023.405 19.05 18.99 10.774 3.43251 4.79753 30.51 1487.47 1023.408 19.35 19.29 10.773 3.43230 4.79735 30.51 1487.47 1023.408 19.65 19.59 10.778 3.43404 4.79903 30.52 1487.51 1023.418 19.95 19.89 10.783 3.43478 4.79941 30.53 1487.54 1023.421 20.25 20.18 10.783 3.43541 4.80035 30.53 1487.55 1023.428 20.55 20.48 10.785 3.43646 4.80150 30.54 1487.57 1023.435 20.85 20.78 10.797 3.43801 4.80208 30.55 1487.63 1023.439 21.15 21.08 10.805 3.43802 4.80099 30.54 1487.65 1023.433 21.45 21.38 10.817 3.44357 4.80715 30.58 1487.75 1023.467 21.75 21.68 10.807 3.44299 4.80767 30.59 1487.73 1023.472 22.05 21.98 10.798 3.44931 4.81769 30.65 1487.78 1023.529 22.35 22.28 10.815 3.46004 4.83037 30.75 1487.96 1023.599 22.65 22.58 10.849 3.46514 4.83298 30.77 1488.11 1023.612 22.95 22.87 10.874 3.46739 4.83276 30.77 1488.20 1023.609 23.25 23.17 10.890 3.46920 4.83315 30.77 1488.27 1023.612 23.55 23.47 10.900 3.47202 4.83569 30.79 1488.33 1023.626 23.99 23.91 10.907 3.47185 4.83451 30.79 1488.36 1023.621