*2026/01/16 09:47:05.63 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2023/12/19 22:32:45.000 END TIME : UTC 2023/12/19 22:33:16.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 156 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 46.52 2 Depth metres 0.15 46.33 3 Temperature 'deg C (ITS90)' 9.549 11.787 4 Conductivity S/m 2.637 3.64271 5 Conductance:Specific S/m 3.81627 4.95775 6 Salinity PSS-78 23.6 31.72 7 Speed:Sound m/s 1474.31 1492.82 8 Density kg/m^3 1018.13 1024.332 $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 : 2023-031 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 107 LATITUDE : 50 25.16000 N ! (deg min) LONGITUDE : 127 29.76780 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20231219_223245 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/15 13:40:53 156 156 MERGEHDR 1.3 2026/01/15 13:41:48 156 156 HDREDIT2 3.2 2026/01/15 14:00:58 ? ? REMOVECH 8.2 2026/01/15 14:01:18 156 156 CALIB 12.1 2026/01/16 09:46:11 156 156 CLEAN 5.3 2026/01/16 09:47:05 156 156 $END $REMARKS -HEADER EDITS: 2026/01/15 14:00:58 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 2026/01/15 14:01:18 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:46:11 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 09:47:01 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 9.549 2.63700 3.81627 23.60 1474.31 1018.130 0.45 0.45 9.955 2.71247 3.87996 24.07 1476.40 1018.440 0.75 0.75 10.008 3.03651 4.33693 27.21 1480.41 1020.883 1.05 1.05 10.115 3.08782 4.39676 27.64 1481.33 1021.200 1.35 1.35 10.236 3.16714 4.49421 28.33 1482.61 1021.720 1.65 1.65 10.329 3.21808 4.55440 28.76 1483.48 1022.041 1.95 1.95 10.343 3.23639 4.57861 28.93 1483.73 1022.173 2.25 2.25 10.370 3.24153 4.58229 28.96 1483.87 1022.192 2.55 2.55 10.413 3.24833 4.58629 28.99 1484.08 1022.212 2.85 2.84 10.448 3.26416 4.60418 29.12 1484.36 1022.308 3.15 3.14 10.464 3.27170 4.61265 29.18 1484.50 1022.354 3.45 3.44 10.474 3.27550 4.61677 29.21 1484.57 1022.377 3.75 3.74 10.483 3.28008 4.62201 29.25 1484.66 1022.406 4.05 4.04 10.492 3.28102 4.62221 29.25 1484.70 1022.408 4.35 4.34 10.504 3.28314 4.62368 29.26 1484.76 1022.417 4.65 4.64 10.517 3.28932 4.63067 29.31 1484.87 1022.455 4.95 4.94 10.530 3.29330 4.63451 29.34 1484.96 1022.476 5.25 5.24 10.542 3.29643 4.63740 29.36 1485.03 1022.492 5.55 5.54 10.556 3.29939 4.63968 29.38 1485.11 1022.505 5.85 5.84 10.560 3.30259 4.64364 29.41 1485.16 1022.527 6.15 6.13 10.566 3.30960 4.65280 29.47 1485.26 1022.578 6.45 6.43 10.584 3.31329 4.65562 29.50 1485.36 1022.593 6.75 6.73 10.609 3.31505 4.65485 29.49 1485.45 1022.588 7.05 7.03 10.622 3.31926 4.65895 29.52 1485.54 1022.611 7.35 7.33 10.648 3.32225 4.65985 29.53 1485.65 1022.615 7.65 7.63 10.648 3.32586 4.66485 29.57 1485.70 1022.644 7.95 7.93 10.648 3.32828 4.66823 29.59 1485.73 1022.663 8.25 8.23 10.661 3.33026 4.66936 29.60 1485.79 1022.670 8.55 8.53 10.665 3.33199 4.67118 29.61 1485.83 1022.681 8.85 8.83 10.666 3.33199 4.67109 29.61 1485.84 1022.681 9.15 9.12 10.669 3.33577 4.67594 29.65 1485.90 1022.709 9.45 9.42 10.676 3.33810 4.67834 29.67 1485.94 1022.723 9.75 9.72 10.683 3.33962 4.67963 29.67 1485.98 1022.731 10.05 10.02 10.684 3.34024 4.68035 29.68 1486.00 1022.736 10.35 10.32 10.686 3.34151 4.68176 29.69 1486.03 1022.744 10.65 10.62 10.691 3.34259 4.68271 29.70 1486.06 1022.750 10.95 10.92 10.696 3.34376 4.68371 29.70 1486.09 1022.757 11.25 11.22 10.703 3.34541 4.68510 29.71 1486.13 1022.765 11.55 11.52 10.703 3.34676 4.68699 29.73 1486.15 1022.777 11.85 11.82 10.705 3.34791 4.68823 29.74 1486.18 1022.785 12.15 12.11 10.709 3.34966 4.69020 29.75 1486.21 1022.796 12.45 12.41 10.717 3.35220 4.69273 29.77 1486.27 1022.811 12.75 12.71 10.728 3.35687 4.69785 29.81 1486.35 1022.839 13.05 13.01 10.739 3.36058 4.70150 29.83 1486.43 1022.859 13.35 13.31 10.758 3.36509 4.70541 29.86 1486.54 1022.881 13.65 13.61 10.765 3.36896 4.70982 29.89 1486.61 1022.905 13.95 13.91 10.777 3.37190 4.71236 29.91 1486.68 1022.919 14.25 14.21 10.794 3.37722 4.71763 29.95 1486.79 1022.948 14.55 14.51 10.824 3.38043 4.71811 29.96 1486.91 1022.950 14.85 14.81 10.852 3.38714 4.72377 30.00 1487.07 1022.979 15.15 15.10 10.870 3.39519 4.73264 30.07 1487.21 1023.028 15.45 15.40 10.889 3.40229 4.74000 30.12 1487.35 1023.068 15.75 15.70 10.917 3.41047 4.74771 30.18 1487.53 1023.109 16.05 16.00 10.938 3.41417 4.75014 30.20 1487.63 1023.122 16.35 16.30 10.956 3.41706 4.75172 30.21 1487.71 1023.130 16.65 16.60 10.980 3.42088 4.75393 30.23 1487.82 1023.141 16.95 16.90 11.008 3.42593 4.75719 30.25 1487.96 1023.158 17.25 17.20 11.040 3.43208 4.76153 30.29 1488.12 1023.180 17.55 17.49 11.071 3.44585 4.77652 30.40 1488.36 1023.261 17.85 17.79 11.105 3.45057 4.77847 30.41 1488.51 1023.270 18.15 18.09 11.143 3.46508 4.79360 30.52 1488.78 1023.351 18.45 18.39 11.180 3.47359 4.80047 30.58 1488.98 1023.386 18.75 18.69 11.199 3.47714 4.80283 30.60 1489.08 1023.399 19.05 18.99 11.218 3.48206 4.80706 30.63 1489.19 1023.422 19.35 19.29 11.247 3.48941 4.81342 30.68 1489.35 1023.455 19.65 19.59 11.265 3.49584 4.81984 30.72 1489.48 1023.490 19.95 19.89 11.285 3.49981 4.82263 30.74 1489.58 1023.505 20.25 20.18 11.320 3.50264 4.82188 30.74 1489.71 1023.499 20.55 20.48 11.340 3.50705 4.82527 30.77 1489.81 1023.517 20.85 20.78 11.357 3.51371 4.83221 30.82 1489.94 1023.555 21.15 21.08 11.375 3.52197 4.84116 30.88 1490.08 1023.604 21.45 21.38 11.402 3.52884 4.84709 30.93 1490.23 1023.635 21.75 21.68 11.420 3.53483 4.85286 30.97 1490.36 1023.666 22.05 21.98 11.435 3.53749 4.85451 30.99 1490.43 1023.675 22.35 22.28 11.446 3.53954 4.85584 31.00 1490.49 1023.683 22.65 22.57 11.450 3.54135 4.85785 31.01 1490.52 1023.695 22.95 22.87 11.450 3.54313 4.86022 31.03 1490.55 1023.709 23.25 23.17 11.451 3.54408 4.86137 31.04 1490.57 1023.716 23.55 23.47 11.454 3.54575 4.86331 31.05 1490.60 1023.728 23.85 23.77 11.462 3.54966 4.86758 31.08 1490.67 1023.752 24.15 24.07 11.474 3.55258 4.87003 31.10 1490.74 1023.766 24.45 24.37 11.480 3.55662 4.87470 31.13 1490.80 1023.792 24.75 24.66 11.491 3.56290 4.88182 31.18 1490.91 1023.831 25.05 24.96 11.506 3.56486 4.88252 31.19 1490.97 1023.835 25.35 25.26 11.512 3.56469 4.88153 31.18 1490.99 1023.830 25.65 25.56 11.516 3.56621 4.88312 31.20 1491.02 1023.840 25.95 25.86 11.523 3.57030 4.88771 31.23 1491.09 1023.866 26.25 26.16 11.540 3.57529 4.89226 31.26 1491.20 1023.891 26.55 26.46 11.556 3.57862 4.89476 31.28 1491.28 1023.904 26.85 26.76 11.568 3.58265 4.89856 31.31 1491.36 1023.925 27.15 27.05 11.574 3.58493 4.90090 31.33 1491.41 1023.939 27.45 27.35 11.578 3.58591 4.90178 31.33 1491.43 1023.944 27.75 27.65 11.584 3.58774 4.90344 31.35 1491.48 1023.954 28.05 27.95 11.587 3.58866 4.90422 31.35 1491.50 1023.959 28.35 28.25 11.585 3.58897 4.90493 31.36 1491.50 1023.965 28.65 28.55 11.583 3.58934 4.90570 31.36 1491.51 1023.971 28.95 28.85 11.580 3.58868 4.90527 31.36 1491.50 1023.970 29.25 29.14 11.572 3.58772 4.90502 31.36 1491.47 1023.970 29.55 29.44 11.569 3.58679 4.90416 31.35 1491.46 1023.967 29.85 29.74 11.562 3.58529 4.90308 31.34 1491.43 1023.963 30.15 30.04 11.554 3.58669 4.90604 31.36 1491.43 1023.982 30.45 30.34 11.550 3.58740 4.90757 31.37 1491.43 1023.992 30.75 30.64 11.550 3.58941 4.91020 31.39 1491.46 1024.007 31.05 30.94 11.566 3.59333 4.91353 31.41 1491.55 1024.026 31.35 31.23 11.588 3.59779 4.91658 31.44 1491.66 1024.041 31.65 31.53 11.605 3.60390 4.92264 31.48 1491.78 1024.074 31.95 31.83 11.630 3.60574 4.92189 31.48 1491.86 1024.069 32.25 32.13 11.646 3.60924 4.92442 31.50 1491.95 1024.083 32.55 32.43 11.657 3.61205 4.92687 31.52 1492.01 1024.097 32.85 32.73 11.663 3.61254 4.92663 31.52 1492.04 1024.096 33.15 33.03 11.671 3.61255 4.92569 31.51 1492.06 1024.091 33.45 33.32 11.679 3.61278 4.92490 31.51 1492.09 1024.087 33.75 33.62 11.682 3.61231 4.92387 31.50 1492.10 1024.083 34.05 33.92 11.687 3.61419 4.92578 31.51 1492.14 1024.094 34.35 34.22 11.703 3.61898 4.93002 31.54 1492.24 1024.117 34.65 34.52 11.726 3.62162 4.93066 31.55 1492.33 1024.119 34.95 34.82 11.737 3.62165 4.92916 31.54 1492.36 1024.111 35.25 35.12 11.739 3.62207 4.92941 31.54 1492.38 1024.114 35.55 35.41 11.740 3.62246 4.92980 31.55 1492.39 1024.117 35.85 35.71 11.741 3.62261 4.92987 31.55 1492.40 1024.118 36.15 36.01 11.741 3.62321 4.93075 31.55 1492.41 1024.125 36.45 36.31 11.742 3.62263 4.92985 31.55 1492.41 1024.121 36.75 36.61 11.742 3.62297 4.93025 31.55 1492.42 1024.124 37.05 36.91 11.742 3.62289 4.93014 31.55 1492.42 1024.125 37.35 37.21 11.747 3.62318 4.92991 31.55 1492.44 1024.125 37.65 37.50 11.752 3.62316 4.92919 31.54 1492.46 1024.121 37.95 37.80 11.756 3.62493 4.93113 31.56 1492.49 1024.133 38.25 38.10 11.758 3.62598 4.93229 31.57 1492.51 1024.140 38.55 38.40 11.762 3.62823 4.93481 31.58 1492.56 1024.155 38.85 38.70 11.770 3.62940 4.93533 31.59 1492.59 1024.158 39.15 39.00 11.778 3.63149 4.93705 31.60 1492.64 1024.168 39.45 39.30 11.782 3.63336 4.93908 31.62 1492.68 1024.180 39.75 39.59 11.783 3.63547 4.94181 31.63 1492.71 1024.197 40.05 39.89 11.786 3.63650 4.94280 31.64 1492.73 1024.203 40.35 40.19 11.787 3.63785 4.94445 31.65 1492.76 1024.213 40.65 40.49 11.785 3.64126 4.94934 31.69 1492.80 1024.242 40.95 40.79 11.784 3.64224 4.95083 31.70 1492.81 1024.251 41.25 41.09 11.782 3.64271 4.95175 31.71 1492.82 1024.258 41.55 41.39 11.774 3.64241 4.95240 31.71 1492.80 1024.263 41.85 41.68 11.765 3.64088 4.95161 31.70 1492.76 1024.261 42.15 41.98 11.774 3.63974 4.94881 31.68 1492.78 1024.246 42.45 42.28 11.745 3.63777 4.95008 31.69 1492.69 1024.257 42.75 42.58 11.723 3.63504 4.94922 31.68 1492.61 1024.256 43.05 42.88 11.708 3.63517 4.95148 31.69 1492.58 1024.271 43.35 43.18 11.705 3.63518 4.95185 31.70 1492.57 1024.275 43.65 43.48 11.705 3.63418 4.95057 31.69 1492.57 1024.269 43.95 43.77 11.700 3.63261 4.94901 31.68 1492.54 1024.262 44.25 44.07 11.685 3.62903 4.94614 31.65 1492.47 1024.249 44.55 44.37 11.652 3.62707 4.94804 31.66 1492.37 1024.264 44.85 44.67 11.622 3.62636 4.95107 31.68 1492.29 1024.285 45.15 44.97 11.610 3.62594 4.95210 31.69 1492.26 1024.293 45.45 45.27 11.602 3.62693 4.95459 31.70 1492.26 1024.309 45.75 45.57 11.602 3.62786 4.95582 31.71 1492.27 1024.317 46.05 45.86 11.589 3.62779 4.95745 31.72 1492.25 1024.329 46.35 46.16 11.581 3.62724 4.95775 31.72 1492.23 1024.332 46.52 46.33 11.582 3.62695 4.95730 31.72 1492.23 1024.330