*2026/01/16 09:57:50.58 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/05/21 20:17:38.000 END TIME : UTC 2024/05/21 20:17:53.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 78 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 23.24 2 Depth metres 0.15 23.13 3 Temperature 'deg C (ITS90)' 9.221 11.979 4 Conductivity S/m 3.45865 3.58475 5 Conductance:Specific S/m 4.84621 5.05587 6 Salinity PSS-78 30.99 32.14 7 Speed:Sound m/s 1483.84 1492 8 Density kg/m^3 1023.49 1024.943 $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 : 119 LATITUDE : 48 55.71210 N ! (deg min) LONGITUDE : 125 23.37950 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240521_201738 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:59 78 78 MERGEHDR 1.3 2026/01/16 09:53:52 78 78 HDREDIT2 3.2 2026/01/16 09:55:05 ? ? REMOVECH 8.2 2026/01/16 09:56:17 78 78 CALIB 12.1 2026/01/16 09:56:50 78 78 CLEAN 5.3 2026/01/16 09:57:50 78 78 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:05 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 09:56:17 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:50 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 11.963 3.58455 4.84885 31.01 1491.93 1023.499 0.45 0.45 11.960 3.58316 4.84732 31.00 1491.91 1023.492 0.75 0.75 11.961 3.58457 4.84916 31.01 1491.94 1023.503 1.05 1.05 11.961 3.58473 4.84937 31.01 1491.94 1023.506 1.35 1.34 11.963 3.58452 4.84875 31.01 1491.95 1023.503 1.65 1.64 11.969 3.58396 4.84724 31.00 1491.96 1023.496 1.95 1.94 11.979 3.58415 4.84621 30.99 1492.00 1023.490 2.25 2.24 11.974 3.58475 4.84766 31.00 1492.00 1023.500 2.55 2.54 11.962 3.58452 4.84896 31.01 1491.97 1023.510 2.85 2.84 11.950 3.58420 4.85002 31.01 1491.94 1023.518 3.15 3.14 11.943 3.58430 4.85114 31.02 1491.93 1023.526 3.45 3.44 11.937 3.58444 4.85205 31.03 1491.92 1023.533 3.75 3.73 11.931 3.58396 4.85222 31.03 1491.91 1023.536 4.05 4.03 11.919 3.58342 4.85312 31.03 1491.87 1023.543 4.35 4.33 11.904 3.58275 4.85415 31.04 1491.83 1023.552 4.65 4.63 11.879 3.58280 4.85752 31.06 1491.78 1023.574 4.95 4.93 11.866 3.58120 4.85707 31.06 1491.73 1023.574 5.25 5.23 11.793 3.57924 4.86403 31.10 1491.53 1023.622 5.55 5.53 11.554 3.57210 4.88610 31.23 1490.86 1023.768 5.85 5.83 11.329 3.56459 4.90597 31.35 1490.22 1023.900 6.15 6.12 11.124 3.56056 4.92830 31.48 1489.67 1024.043 6.45 6.42 10.983 3.55636 4.94171 31.56 1489.27 1024.131 6.75 6.72 10.927 3.55287 4.94461 31.57 1489.09 1024.153 7.05 7.02 10.903 3.55314 4.94825 31.60 1489.04 1024.176 7.35 7.32 10.886 3.55169 4.94854 31.60 1488.99 1024.180 7.65 7.62 10.829 3.54922 4.95306 31.62 1488.82 1024.211 7.95 7.92 10.792 3.54273 4.94909 31.59 1488.65 1024.193 8.25 8.22 10.734 3.54230 4.95648 31.64 1488.51 1024.240 8.55 8.51 10.723 3.54270 4.95851 31.65 1488.49 1024.254 8.85 8.81 10.703 3.53882 4.95592 31.63 1488.40 1024.242 9.15 9.11 10.661 3.53724 4.95949 31.65 1488.28 1024.266 9.45 9.41 10.640 3.53658 4.96151 31.66 1488.22 1024.280 9.75 9.71 10.614 3.53504 4.96299 31.67 1488.14 1024.292 10.05 10.01 10.604 3.53594 4.96561 31.68 1488.13 1024.308 10.35 10.31 10.601 3.53541 4.96536 31.68 1488.12 1024.308 10.65 10.60 10.593 3.53461 4.96525 31.68 1488.10 1024.310 10.95 10.90 10.506 3.52740 4.96738 31.68 1487.80 1024.329 11.25 11.20 10.202 3.50669 4.98086 31.74 1486.78 1024.427 11.55 11.50 10.008 3.49624 4.99351 31.81 1486.16 1024.511 11.85 11.80 9.831 3.48462 5.00216 31.84 1485.57 1024.571 12.15 12.10 9.614 3.47680 5.02226 31.96 1484.92 1024.695 12.45 12.39 9.564 3.47460 5.02629 31.98 1484.77 1024.722 12.75 12.69 9.559 3.47440 5.02680 31.98 1484.76 1024.726 13.05 12.99 9.555 3.47482 5.02790 31.99 1484.76 1024.733 13.35 13.29 9.559 3.47427 5.02658 31.98 1484.77 1024.727 13.65 13.59 9.536 3.47384 5.02927 32.00 1484.71 1024.745 13.95 13.89 9.527 3.47327 5.02977 32.00 1484.69 1024.749 14.25 14.19 9.494 3.47208 5.03294 32.02 1484.59 1024.770 14.55 14.48 9.470 3.46926 5.03231 32.01 1484.50 1024.769 14.85 14.78 9.442 3.46747 5.03380 32.01 1484.41 1024.780 15.15 15.08 9.424 3.46601 5.03432 32.02 1484.35 1024.785 15.45 15.38 9.403 3.46561 5.03684 32.03 1484.29 1024.801 15.75 15.68 9.393 3.46531 5.03787 32.04 1484.27 1024.808 16.05 15.98 9.387 3.46509 5.03839 32.04 1484.25 1024.813 16.35 16.27 9.364 3.46437 5.04073 32.05 1484.19 1024.828 16.65 16.57 9.336 3.46305 5.04287 32.06 1484.11 1024.842 16.95 16.87 9.312 3.46152 5.04420 32.07 1484.03 1024.852 17.25 17.17 9.303 3.46127 5.04510 32.07 1484.01 1024.859 17.55 17.47 9.296 3.46126 5.04612 32.08 1484.00 1024.866 17.85 17.77 9.290 3.46151 5.04744 32.09 1483.99 1024.875 18.15 18.06 9.288 3.46096 5.04688 32.08 1483.98 1024.873 18.45 18.36 9.289 3.46116 5.04697 32.08 1483.99 1024.875 18.75 18.66 9.285 3.46099 5.04742 32.09 1483.98 1024.879 19.05 18.96 9.283 3.46085 5.04751 32.09 1483.98 1024.881 19.35 19.26 9.274 3.46093 5.04890 32.10 1483.96 1024.890 19.65 19.56 9.270 3.46038 5.04863 32.09 1483.95 1024.890 19.95 19.86 9.266 3.46043 5.04930 32.10 1483.95 1024.895 20.25 20.15 9.261 3.46001 5.04952 32.10 1483.93 1024.898 20.55 20.45 9.254 3.45979 5.05014 32.10 1483.92 1024.903 20.85 20.75 9.246 3.45943 5.05087 32.10 1483.90 1024.909 21.15 21.05 9.250 3.45952 5.05043 32.10 1483.91 1024.907 21.45 21.35 9.238 3.45865 5.05089 32.10 1483.88 1024.912 21.75 21.65 9.221 3.45884 5.05365 32.12 1483.84 1024.929 22.05 21.94 9.221 3.46031 5.05587 32.14 1483.86 1024.942 22.35 22.24 9.223 3.46017 5.05527 32.13 1483.87 1024.940 22.65 22.54 9.230 3.46000 5.05410 32.12 1483.89 1024.935 22.95 22.84 9.223 3.46010 5.05530 32.13 1483.88 1024.943 23.24 23.13 9.228 3.46024 5.05464 32.13 1483.90 1024.940