*2026/01/16 09:57:52.62 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/07/09 19:58:48.000 END TIME : UTC 2024/07/09 19:59:07.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 97 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 29.1 2 Depth metres 0.15 28.96 3 Temperature 'deg C (ITS90)' 9.805 15.808 4 Conductivity S/m 3.52548 3.8517 5 Conductance:Specific S/m 4.70128 5.06656 6 Salinity PSS-78 30.26 32.29 7 Speed:Sound m/s 1486.28 1503.76 8 Density kg/m^3 1022.152 1025 $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 : 166 LATITUDE : 49 52.16660 N ! (deg min) LONGITUDE : 126 55.71190 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240709_195848 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:02 97 97 MERGEHDR 1.3 2026/01/16 09:53:56 97 97 HDREDIT2 3.2 2026/01/16 09:55:07 ? ? REMOVECH 8.2 2026/01/16 09:56:19 97 97 CALIB 12.1 2026/01/16 09:56:52 97 97 CLEAN 5.3 2026/01/16 09:57:52 97 97 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:07 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 09:56:19 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:52 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 15.599 3.85099 4.74268 30.54 1503.40 1022.412 0.45 0.45 15.790 3.84381 4.71166 30.33 1503.76 1022.210 0.75 0.75 15.808 3.83699 4.70128 30.26 1503.74 1022.152 1.05 1.05 15.636 3.84685 4.73326 30.48 1503.45 1022.358 1.35 1.35 15.449 3.85170 4.76116 30.67 1503.08 1022.544 1.65 1.65 15.195 3.83525 4.77076 30.72 1502.34 1022.640 1.95 1.94 14.920 3.78993 4.74687 30.53 1501.25 1022.554 2.25 2.24 14.813 3.79170 4.76190 30.63 1501.03 1022.655 2.55 2.54 14.667 3.78016 4.76487 30.64 1500.57 1022.695 2.85 2.84 14.550 3.77376 4.77093 30.67 1500.24 1022.748 3.15 3.14 14.419 3.77228 4.78483 30.76 1499.93 1022.845 3.45 3.44 14.218 3.76586 4.80125 30.87 1499.39 1022.967 3.75 3.74 14.116 3.76372 4.81100 30.93 1499.14 1023.036 4.05 4.04 13.973 3.76494 4.83024 31.05 1498.82 1023.164 4.35 4.34 13.645 3.75679 4.86060 31.24 1497.97 1023.378 4.65 4.63 13.449 3.74236 4.86669 31.27 1497.36 1023.440 4.95 4.93 13.176 3.71382 4.86403 31.23 1496.40 1023.462 5.25 5.23 12.847 3.69479 4.88126 31.32 1495.41 1023.599 5.55 5.53 12.682 3.69127 4.89790 31.43 1494.98 1023.712 5.85 5.83 12.501 3.68769 4.91674 31.54 1494.51 1023.838 6.15 6.13 12.374 3.68431 4.92903 31.62 1494.17 1023.922 6.45 6.43 12.255 3.68247 4.94221 31.70 1493.87 1024.009 6.75 6.73 12.123 3.67153 4.94508 31.71 1493.43 1024.041 7.05 7.02 12.033 3.66541 4.94881 31.72 1493.14 1024.072 7.35 7.32 11.888 3.65599 4.95549 31.76 1492.69 1024.125 7.65 7.62 11.734 3.64072 4.95557 31.74 1492.14 1024.143 7.95 7.92 11.625 3.63334 4.96020 31.76 1491.79 1024.180 8.25 8.22 11.485 3.62626 4.96947 31.81 1491.37 1024.246 8.55 8.52 11.396 3.62347 4.97787 31.86 1491.12 1024.302 8.85 8.82 11.312 3.61921 4.98348 31.89 1490.87 1024.342 9.15 9.11 11.199 3.61232 4.98955 31.92 1490.51 1024.387 9.45 9.41 11.129 3.60680 4.99153 31.93 1490.28 1024.406 9.75 9.71 11.027 3.59960 4.99564 31.95 1489.95 1024.439 10.05 10.01 10.913 3.58896 4.99675 31.94 1489.54 1024.456 10.35 10.31 10.855 3.58241 4.99572 31.93 1489.32 1024.456 10.65 10.61 10.760 3.57569 4.99962 31.94 1489.01 1024.486 10.95 10.91 10.693 3.57272 5.00485 31.97 1488.81 1024.522 11.25 11.20 10.620 3.56674 5.00672 31.98 1488.56 1024.539 11.55 11.50 10.536 3.56299 5.01320 32.01 1488.31 1024.583 11.85 11.80 10.469 3.55630 5.01319 32.00 1488.07 1024.589 12.15 12.10 10.377 3.55080 5.01850 32.03 1487.78 1024.626 12.45 12.40 10.285 3.54635 5.02534 32.07 1487.49 1024.672 12.75 12.70 10.258 3.54543 5.02780 32.08 1487.42 1024.688 13.05 12.99 10.229 3.54454 5.03075 32.10 1487.34 1024.708 13.35 13.29 10.208 3.54390 5.03277 32.11 1487.28 1024.722 13.65 13.59 10.177 3.54234 5.03506 32.12 1487.19 1024.738 13.95 13.89 10.154 3.54072 5.03596 32.12 1487.12 1024.746 14.25 14.19 10.116 3.53753 5.03690 32.13 1486.99 1024.755 14.55 14.49 10.077 3.53584 5.04006 32.14 1486.87 1024.776 14.85 14.78 10.057 3.53538 5.04240 32.16 1486.82 1024.791 15.15 15.08 10.035 3.53449 5.04422 32.17 1486.76 1024.804 15.45 15.38 10.027 3.53305 5.04335 32.16 1486.73 1024.801 15.75 15.68 10.011 3.53256 5.04487 32.17 1486.69 1024.812 16.05 15.98 9.999 3.53204 5.04589 32.17 1486.65 1024.819 16.35 16.28 9.995 3.53189 5.04628 32.18 1486.65 1024.823 16.65 16.58 9.981 3.53279 5.04960 32.20 1486.63 1024.844 16.95 16.87 9.986 3.53203 5.04771 32.18 1486.64 1024.834 17.25 17.17 9.973 3.53113 5.04837 32.19 1486.59 1024.840 17.55 17.47 9.959 3.53057 5.04966 32.19 1486.56 1024.849 17.85 17.77 9.953 3.52979 5.04929 32.19 1486.54 1024.849 18.15 18.07 9.949 3.53019 5.05054 32.20 1486.54 1024.857 18.45 18.37 9.947 3.52995 5.05050 32.20 1486.53 1024.858 18.75 18.66 9.943 3.52957 5.05039 32.20 1486.52 1024.859 19.05 18.96 9.946 3.53059 5.05154 32.21 1486.55 1024.867 19.35 19.26 9.942 3.53039 5.05177 32.21 1486.54 1024.869 19.65 19.56 9.939 3.53003 5.05164 32.21 1486.53 1024.870 19.95 19.86 9.933 3.53019 5.05285 32.21 1486.52 1024.878 20.25 20.16 9.928 3.52928 5.05227 32.21 1486.50 1024.877 20.55 20.45 9.923 3.52888 5.05241 32.21 1486.49 1024.879 20.85 20.75 9.926 3.52935 5.05268 32.21 1486.51 1024.882 21.15 21.05 9.935 3.52975 5.05185 32.21 1486.54 1024.878 21.45 21.35 9.920 3.52914 5.05312 32.21 1486.50 1024.887 21.75 21.65 9.921 3.52938 5.05332 32.21 1486.51 1024.889 22.05 21.95 9.931 3.52938 5.05196 32.21 1486.54 1024.882 22.35 22.24 9.943 3.53019 5.05133 32.20 1486.59 1024.880 22.65 22.54 9.927 3.52981 5.05313 32.21 1486.55 1024.892 22.95 22.84 9.914 3.52876 5.05354 32.21 1486.51 1024.896 23.25 23.14 9.909 3.52835 5.05359 32.21 1486.49 1024.898 23.55 23.44 9.899 3.52839 5.05510 32.22 1486.47 1024.908 23.85 23.74 9.892 3.52843 5.05627 32.23 1486.46 1024.916 24.15 24.03 9.883 3.52781 5.05655 32.23 1486.44 1024.920 24.45 24.33 9.868 3.52782 5.05876 32.24 1486.40 1024.934 24.75 24.63 9.865 3.52723 5.05838 32.24 1486.39 1024.933 25.05 24.93 9.852 3.52856 5.06227 32.27 1486.38 1024.957 25.35 25.23 9.853 3.52756 5.06066 32.26 1486.37 1024.949 25.65 25.53 9.844 3.52737 5.06164 32.26 1486.35 1024.956 25.95 25.82 9.839 3.52697 5.06176 32.26 1486.34 1024.959 26.25 26.12 9.840 3.52713 5.06189 32.26 1486.35 1024.960 26.55 26.42 9.839 3.52716 5.06209 32.26 1486.35 1024.963 26.85 26.72 9.836 3.52663 5.06183 32.26 1486.34 1024.963 27.15 27.02 9.830 3.52654 5.06245 32.26 1486.33 1024.968 27.45 27.32 9.821 3.52548 5.06233 32.26 1486.30 1024.969 27.75 27.61 9.810 3.52625 5.06494 32.28 1486.29 1024.985 28.05 27.91 9.808 3.52554 5.06428 32.27 1486.28 1024.983 28.35 28.21 9.805 3.52572 5.06495 32.28 1486.28 1024.988 28.65 28.51 9.806 3.52561 5.06460 32.28 1486.28 1024.988 29.10 28.96 9.805 3.52680 5.06656 32.29 1486.30 1025.000