*2026/01/16 09:57:54.02 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/08/15 22:15:32.000 END TIME : UTC 2024/08/15 22:15:48.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 84 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 25.19 2 Depth metres 0.15 25.08 3 Temperature 'deg C (ITS90)' 9.668 18.166 4 Conductivity S/m 3.50022 3.96279 5 Conductance:Specific S/m 4.58158 5.04893 6 Salinity PSS-78 29.52 32.15 7 Speed:Sound m/s 1485.56 1510.09 8 Density kg/m^3 1021.051 1024.893 $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 : 219 LATITUDE : 48 58.21160 N ! (deg min) LONGITUDE : 125 5.46550 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240815_221532 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:05 84 84 MERGEHDR 1.3 2026/01/16 09:54:02 84 84 HDREDIT2 3.2 2026/01/16 09:55:10 ? ? REMOVECH 8.2 2026/01/16 09:56:21 84 84 CALIB 12.1 2026/01/16 09:56:54 84 84 CLEAN 5.3 2026/01/16 09:57:54 84 84 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:10 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 09:56:21 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:54 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 18.089 3.96279 4.59838 29.64 1509.97 1021.152 0.45 0.45 18.166 3.95745 4.58399 29.54 1510.09 1021.059 0.75 0.75 18.148 3.95371 4.58158 29.52 1510.03 1021.051 1.05 1.05 18.091 3.95231 4.58598 29.55 1509.89 1021.088 1.35 1.35 18.013 3.95782 4.60072 29.65 1509.78 1021.186 1.65 1.65 17.993 3.95627 4.60111 29.65 1509.73 1021.193 1.95 1.95 17.986 3.95509 4.60044 29.65 1509.71 1021.192 2.25 2.25 17.949 3.95279 4.60177 29.66 1509.61 1021.208 2.55 2.55 17.865 3.94937 4.60679 29.69 1509.40 1021.254 2.85 2.85 17.539 3.94265 4.63417 29.87 1508.64 1021.471 3.15 3.14 16.611 3.90182 4.68849 30.21 1506.22 1021.948 3.45 3.44 16.286 3.88314 4.70272 30.30 1505.32 1022.087 3.75 3.74 15.656 3.85208 4.73743 30.51 1503.59 1022.389 4.05 4.04 15.142 3.82878 4.76905 30.70 1502.19 1022.650 4.35 4.34 14.674 3.81560 4.80867 30.95 1500.99 1022.943 4.65 4.64 14.162 3.76560 4.80775 30.91 1499.28 1023.016 4.95 4.94 13.685 3.73853 4.83205 31.04 1497.88 1023.218 5.25 5.24 13.363 3.68922 4.80825 30.85 1496.58 1023.131 5.55 5.54 12.877 3.67934 4.85690 31.15 1495.31 1023.462 5.85 5.84 12.434 3.66196 4.89120 31.35 1494.06 1023.705 6.15 6.13 12.247 3.65305 4.90387 31.43 1493.51 1023.797 6.45 6.43 12.028 3.63942 4.91442 31.48 1492.82 1023.880 6.75 6.73 11.818 3.62317 4.92040 31.50 1492.13 1023.936 7.05 7.03 11.705 3.62081 4.93226 31.57 1491.83 1024.014 7.35 7.33 11.583 3.61780 4.94462 31.65 1491.50 1024.096 7.65 7.63 11.491 3.61733 4.95648 31.72 1491.27 1024.172 7.95 7.93 11.444 3.61583 4.96079 31.75 1491.14 1024.201 8.25 8.22 11.379 3.61285 4.96562 31.77 1490.95 1024.235 8.55 8.52 11.341 3.60748 4.96340 31.75 1490.80 1024.228 8.85 8.82 11.278 3.60414 4.96733 31.77 1490.61 1024.256 9.15 9.12 11.182 3.59921 4.97373 31.81 1490.32 1024.302 9.45 9.42 11.122 3.59258 4.97285 31.80 1490.10 1024.303 9.75 9.72 11.054 3.58814 4.97604 31.81 1489.88 1024.328 10.05 10.02 10.974 3.58318 4.98030 31.83 1489.62 1024.360 10.35 10.31 10.924 3.58030 4.98310 31.85 1489.47 1024.380 10.65 10.61 10.882 3.57598 4.98294 31.84 1489.32 1024.384 10.95 10.91 10.841 3.57387 4.98579 31.85 1489.20 1024.405 11.25 11.21 10.818 3.57275 4.98743 31.86 1489.13 1024.417 11.55 11.51 10.788 3.57097 4.98903 31.87 1489.04 1024.429 11.85 11.81 10.766 3.56902 4.98938 31.87 1488.97 1024.434 12.15 12.11 10.725 3.56799 4.99365 31.90 1488.86 1024.463 12.45 12.40 10.703 3.56645 4.99466 31.90 1488.79 1024.471 12.75 12.70 10.681 3.56532 4.99610 31.91 1488.72 1024.482 13.05 13.00 10.673 3.56313 4.99411 31.89 1488.68 1024.473 13.35 13.30 10.627 3.56161 4.99841 31.92 1488.55 1024.501 13.65 13.60 10.608 3.55994 4.99875 31.92 1488.49 1024.506 13.95 13.90 10.583 3.55771 4.99917 31.92 1488.41 1024.512 14.25 14.20 10.558 3.55703 5.00178 31.93 1488.34 1024.529 14.55 14.49 10.546 3.55530 5.00105 31.93 1488.29 1024.527 14.85 14.79 10.529 3.55497 5.00285 31.94 1488.25 1024.540 15.15 15.09 10.514 3.55379 5.00338 31.94 1488.20 1024.545 15.45 15.39 10.490 3.55286 5.00548 31.95 1488.14 1024.560 15.75 15.69 10.461 3.54938 5.00467 31.94 1488.03 1024.559 16.05 15.99 10.432 3.54769 5.00632 31.95 1487.94 1024.571 16.35 16.28 10.414 3.54694 5.00777 31.96 1487.89 1024.582 16.65 16.58 10.393 3.54589 5.00932 31.96 1487.83 1024.593 16.95 16.88 10.379 3.54468 5.00964 31.97 1487.78 1024.597 17.25 17.18 10.346 3.54253 5.01128 31.97 1487.68 1024.610 17.55 17.48 10.310 3.54059 5.01365 31.98 1487.57 1024.627 17.85 17.78 10.292 3.53981 5.01508 31.99 1487.52 1024.637 18.15 18.08 10.269 3.53800 5.01568 31.99 1487.44 1024.643 18.45 18.37 10.257 3.53724 5.01638 32.00 1487.41 1024.649 18.75 18.67 10.235 3.53653 5.01846 32.01 1487.35 1024.664 19.05 18.97 10.197 3.53405 5.02036 32.02 1487.23 1024.678 19.35 19.27 10.167 3.53123 5.02068 32.02 1487.12 1024.683 19.65 19.57 10.127 3.52830 5.02226 32.02 1486.99 1024.696 19.95 19.87 10.019 3.52374 5.03120 32.07 1486.66 1024.753 20.25 20.16 9.993 3.52026 5.03001 32.06 1486.56 1024.750 20.55 20.46 9.976 3.51941 5.03124 32.07 1486.51 1024.759 20.85 20.76 9.963 3.51847 5.03176 32.07 1486.47 1024.764 21.15 21.06 9.946 3.51852 5.03424 32.08 1486.43 1024.780 21.45 21.36 9.917 3.51656 5.03562 32.09 1486.34 1024.791 21.75 21.66 9.899 3.51583 5.03712 32.10 1486.29 1024.801 22.05 21.96 9.872 3.51303 5.03699 32.09 1486.19 1024.803 22.35 22.25 9.860 3.51202 5.03738 32.09 1486.15 1024.807 22.65 22.55 9.841 3.51117 5.03883 32.10 1486.10 1024.818 22.95 22.85 9.827 3.50897 5.03768 32.09 1486.04 1024.814 23.25 23.15 9.798 3.50534 5.03676 32.08 1485.93 1024.812 23.55 23.45 9.754 3.50416 5.04132 32.11 1485.80 1024.841 23.85 23.75 9.734 3.50413 5.04425 32.12 1485.76 1024.859 24.15 24.04 9.720 3.50350 5.04530 32.13 1485.72 1024.867 24.45 24.34 9.716 3.50235 5.04434 32.12 1485.70 1024.863 24.75 24.64 9.668 3.50076 5.04893 32.15 1485.56 1024.893 25.19 25.08 9.672 3.50022 5.04756 32.14 1485.57 1024.887