*2026/01/16 10:37:54.52 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/05/27 21:55:17.000 END TIME : UTC 2025/05/27 21:55:41.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 121 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 36.06 2 Depth metres 0.15 35.93 3 Temperature 'deg C (ITS90)' 9.766 13.094 4 Conductivity S/m 1.41535 3.50658 5 Conductance:Specific S/m 1.87491 4.96895 6 Salinity PSS-78 10.98 31.59 7 Speed:Sound m/s 1470.95 1488.92 8 Density kg/m^3 1007.898 1024.494 $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 : 158 LATITUDE : 49 38.34480 N ! (deg min) LONGITUDE : 126 18.11730 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250527_215517 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:30 121 121 MERGEHDR 1.3 2026/01/16 10:35:44 121 121 HDREDIT2 3.2 2026/01/16 10:36:15 ? ? REMOVECH 8.2 2026/01/16 10:36:42 121 121 CALIB 12.1 2026/01/16 10:37:18 121 121 CLEAN 5.3 2026/01/16 10:37:54 121 121 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:15 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 10:36:42 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:18 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 12.744 1.41535 1.87491 10.98 1470.95 1007.898 0.45 0.45 13.016 1.54040 2.02601 11.95 1473.07 1008.606 0.75 0.76 13.094 2.14816 2.81953 17.13 1479.45 1012.581 1.05 1.06 12.987 2.41889 3.18384 19.56 1481.94 1014.472 1.35 1.36 12.895 2.64270 3.48684 21.60 1484.04 1016.067 1.65 1.66 12.749 2.75358 3.64724 22.69 1484.81 1016.931 1.95 1.96 12.589 2.84916 3.78991 23.66 1485.40 1017.707 2.25 2.26 12.362 3.00744 4.02477 25.26 1486.52 1018.988 2.55 2.56 12.174 3.08464 4.14893 26.11 1486.87 1019.677 2.85 2.86 12.073 3.18938 4.30146 27.16 1487.78 1020.511 3.15 3.16 11.917 3.28679 4.45155 28.20 1488.47 1021.343 3.45 3.46 11.661 3.31886 4.52637 28.70 1488.18 1021.778 3.75 3.76 11.523 3.34076 4.57354 29.02 1488.08 1022.050 4.05 4.06 11.456 3.37919 4.63466 29.44 1488.36 1022.392 4.35 4.36 11.382 3.42604 4.70844 29.95 1488.71 1022.803 4.65 4.66 11.325 3.45250 4.75230 30.26 1488.88 1023.051 4.95 4.96 11.280 3.46506 4.77544 30.42 1488.92 1023.183 5.25 5.26 11.239 3.47171 4.78999 30.51 1488.90 1023.268 5.55 5.55 11.204 3.47493 4.79906 30.57 1488.85 1023.322 5.85 5.85 11.182 3.47694 4.80474 30.61 1488.83 1023.357 6.15 6.15 11.170 3.48000 4.81060 30.65 1488.84 1023.391 6.45 6.45 11.158 3.48343 4.81692 30.70 1488.85 1023.428 6.75 6.75 11.146 3.48562 4.82157 30.73 1488.85 1023.456 7.05 7.05 11.131 3.48787 4.82671 30.76 1488.84 1023.487 7.35 7.35 11.100 3.49028 4.83422 30.81 1488.80 1023.532 7.65 7.65 11.063 3.49014 4.83889 30.84 1488.71 1023.562 7.95 7.94 11.045 3.48915 4.83993 30.85 1488.66 1023.571 8.25 8.24 11.027 3.49084 4.84472 30.88 1488.64 1023.600 8.55 8.54 11.006 3.48897 4.84494 30.88 1488.57 1023.604 8.85 8.84 10.979 3.48732 4.84626 30.88 1488.48 1023.615 9.15 9.14 10.953 3.48690 4.84927 30.90 1488.42 1023.635 9.45 9.44 10.939 3.48715 4.85155 30.92 1488.39 1023.650 9.75 9.74 10.925 3.48662 4.85259 30.92 1488.35 1023.659 10.05 10.04 10.917 3.48802 4.85565 30.94 1488.35 1023.677 10.35 10.33 10.906 3.48925 4.85881 30.96 1488.35 1023.697 10.65 10.63 10.894 3.49249 4.86508 31.01 1488.36 1023.734 10.95 10.93 10.888 3.49482 4.86904 31.03 1488.37 1023.757 11.25 11.23 10.891 3.49894 4.87446 31.07 1488.43 1023.788 11.55 11.53 10.887 3.50228 4.87964 31.11 1488.47 1023.818 11.85 11.83 10.877 3.50514 4.88489 31.14 1488.48 1023.849 12.15 12.13 10.863 3.50501 4.88667 31.15 1488.45 1023.861 12.45 12.42 10.852 3.50458 4.88749 31.16 1488.42 1023.868 12.75 12.72 10.857 3.50658 4.88972 31.17 1488.46 1023.881 13.05 13.02 10.857 3.50612 4.88908 31.17 1488.46 1023.879 13.35 13.32 10.844 3.50595 4.89060 31.18 1488.43 1023.890 13.65 13.62 10.826 3.50622 4.89337 31.20 1488.40 1023.908 13.95 13.92 10.820 3.50560 4.89338 31.20 1488.38 1023.909 14.25 14.22 10.809 3.50518 4.89423 31.20 1488.35 1023.916 14.55 14.52 10.797 3.50442 4.89488 31.20 1488.31 1023.922 14.85 14.81 10.783 3.50322 4.89503 31.20 1488.27 1023.925 15.15 15.11 10.774 3.50292 4.89591 31.21 1488.25 1023.932 15.45 15.41 10.766 3.50162 4.89522 31.20 1488.22 1023.930 15.75 15.71 10.759 3.50076 4.89487 31.20 1488.20 1023.930 16.05 16.01 10.755 3.50086 4.89566 31.20 1488.19 1023.936 16.35 16.31 10.747 3.50056 4.89627 31.21 1488.17 1023.941 16.65 16.61 10.743 3.50049 4.89671 31.21 1488.17 1023.945 16.95 16.90 10.738 3.50003 4.89686 31.21 1488.15 1023.948 17.25 17.20 10.731 3.49967 4.89723 31.21 1488.14 1023.952 17.55 17.50 10.729 3.49981 4.89765 31.21 1488.14 1023.956 17.85 17.80 10.728 3.49917 4.89702 31.21 1488.13 1023.953 18.15 18.10 10.725 3.49888 4.89699 31.21 1488.12 1023.955 18.45 18.40 10.722 3.49877 4.89723 31.21 1488.12 1023.958 18.75 18.70 10.720 3.49851 4.89708 31.21 1488.12 1023.958 19.05 19.00 10.720 3.49905 4.89786 31.21 1488.13 1023.964 19.35 19.29 10.720 3.49902 4.89791 31.21 1488.13 1023.965 19.65 19.59 10.718 3.49896 4.89808 31.21 1488.13 1023.968 19.95 19.89 10.714 3.49817 4.89741 31.21 1488.12 1023.966 20.25 20.19 10.710 3.49816 4.89803 31.21 1488.11 1023.971 20.55 20.49 10.702 3.49732 4.89799 31.21 1488.08 1023.972 20.85 20.79 10.687 3.49625 4.89847 31.21 1488.04 1023.977 21.15 21.09 10.668 3.49534 4.89980 31.22 1487.99 1023.987 21.45 21.38 10.635 3.49337 4.90157 31.23 1487.88 1024.001 21.75 21.68 10.615 3.49142 4.90166 31.23 1487.81 1024.004 22.05 21.98 10.613 3.49142 4.90191 31.23 1487.81 1024.007 22.35 22.28 10.605 3.49091 4.90225 31.23 1487.79 1024.011 22.65 22.58 10.593 3.48931 4.90162 31.22 1487.75 1024.010 22.95 22.88 10.573 3.48951 4.90469 31.24 1487.70 1024.029 23.25 23.18 10.553 3.48863 4.90621 31.25 1487.65 1024.041 23.55 23.47 10.518 3.48575 4.90706 31.25 1487.53 1024.049 23.85 23.77 10.497 3.48534 4.90929 31.27 1487.47 1024.064 24.15 24.07 10.490 3.48390 4.90823 31.26 1487.44 1024.060 24.45 24.37 10.469 3.48080 4.90688 31.25 1487.36 1024.056 24.75 24.67 10.414 3.47953 4.91263 31.28 1487.21 1024.093 25.05 24.97 10.360 3.47828 4.91835 31.31 1487.06 1024.129 25.35 25.27 10.318 3.47730 4.92288 31.34 1486.94 1024.159 25.65 25.57 10.284 3.47617 4.92605 31.36 1486.85 1024.180 25.95 25.86 10.269 3.47578 4.92750 31.37 1486.81 1024.190 26.25 26.16 10.257 3.47566 4.92903 31.38 1486.78 1024.201 26.55 26.46 10.242 3.47479 4.92991 31.38 1486.74 1024.208 26.85 26.76 10.228 3.47492 4.93204 31.39 1486.71 1024.222 27.15 27.06 10.215 3.47391 4.93238 31.39 1486.67 1024.226 27.45 27.36 10.207 3.47549 4.93586 31.42 1486.67 1024.247 27.75 27.66 10.197 3.47427 4.93541 31.41 1486.64 1024.246 28.05 27.95 10.186 3.47382 4.93634 31.42 1486.61 1024.253 28.35 28.25 10.175 3.47319 4.93701 31.42 1486.58 1024.259 28.65 28.55 10.163 3.47291 4.93835 31.43 1486.55 1024.269 28.95 28.85 10.154 3.47254 4.93897 31.43 1486.53 1024.274 29.25 29.15 10.142 3.47180 4.93965 31.44 1486.49 1024.280 29.55 29.45 10.135 3.47187 4.94080 31.44 1486.48 1024.288 29.85 29.75 10.127 3.47176 4.94169 31.45 1486.46 1024.294 30.15 30.04 10.118 3.47093 4.94185 31.45 1486.43 1024.297 30.45 30.34 10.101 3.47002 4.94286 31.45 1486.38 1024.305 30.75 30.64 10.090 3.46929 4.94337 31.45 1486.35 1024.310 31.05 30.94 10.078 3.46944 4.94530 31.47 1486.33 1024.323 31.35 31.24 10.069 3.46857 4.94538 31.47 1486.30 1024.325 31.65 31.54 10.055 3.46830 4.94690 31.47 1486.26 1024.335 31.95 31.83 10.033 3.46706 4.94832 31.48 1486.19 1024.346 32.25 32.13 10.011 3.46536 4.94900 31.48 1486.12 1024.352 32.55 32.43 10.016 3.46354 4.94559 31.46 1486.12 1024.335 32.85 32.73 10.009 3.46196 4.94441 31.45 1486.08 1024.330 33.15 33.03 9.953 3.46120 4.95125 31.49 1485.94 1024.372 33.45 33.33 9.924 3.46125 4.95542 31.52 1485.87 1024.398 33.75 33.63 9.909 3.46069 4.95679 31.52 1485.83 1024.408 34.05 33.92 9.896 3.45931 4.95653 31.52 1485.78 1024.409 34.35 34.22 9.886 3.46014 4.95924 31.54 1485.77 1024.426 34.65 34.52 9.879 3.45825 4.95745 31.52 1485.73 1024.417 34.95 34.82 9.857 3.45614 4.95754 31.52 1485.66 1024.421 35.25 35.12 9.819 3.45490 4.96128 31.54 1485.55 1024.445 35.55 35.42 9.790 3.45447 4.96468 31.56 1485.47 1024.467 35.85 35.72 9.767 3.45362 4.96684 31.58 1485.41 1024.481 36.06 35.93 9.766 3.45502 4.96895 31.59 1485.43 1024.494