*2026/01/16 09:57:51.18 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/06/11 00:52:12.000 END TIME : UTC 2024/06/11 00:52:33.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 106 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 31.5 2 Depth metres 0.15 31.36 3 Temperature 'deg C (ITS90)' 9.249 14.985 4 Conductivity S/m 3.44846 3.70361 5 Conductance:Specific S/m 4.62151 5.03514 6 Salinity PSS-78 29.63 31.99 7 Speed:Sound m/s 1483.93 1500.45 8 Density kg/m^3 1021.849 1024.867 $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 : 138 LATITUDE : 48 52.80710 N ! (deg min) LONGITUDE : 125 17.71910 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240611_005212 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:01 106 106 MERGEHDR 1.3 2026/01/16 09:53:53 106 106 HDREDIT2 3.2 2026/01/16 09:55:06 ? ? REMOVECH 8.2 2026/01/16 09:56:17 106 106 CALIB 12.1 2026/01/16 09:56:51 106 106 CLEAN 5.3 2026/01/16 09:57:51 106 106 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:06 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 09:56:51 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 14.975 3.70361 4.63237 29.72 1500.45 1021.909 0.45 0.45 14.985 3.69587 4.62151 29.64 1500.40 1021.849 0.75 0.75 14.937 3.69814 4.62994 29.70 1500.32 1021.904 1.05 1.05 14.879 3.69284 4.63007 29.69 1500.13 1021.915 1.35 1.35 14.665 3.67728 4.63543 29.72 1499.47 1021.979 1.65 1.65 14.398 3.64556 4.62654 29.63 1498.51 1021.972 1.95 1.95 13.930 3.62201 4.65196 29.78 1497.15 1022.181 2.25 2.24 13.797 3.60307 4.64349 29.71 1496.64 1022.154 2.55 2.54 13.448 3.59613 4.67658 29.92 1495.73 1022.385 2.85 2.84 13.235 3.59086 4.69574 30.04 1495.16 1022.519 3.15 3.14 13.094 3.58498 4.70540 30.09 1494.76 1022.591 3.45 3.44 12.964 3.58172 4.71726 30.17 1494.41 1022.674 3.75 3.74 12.734 3.57008 4.73053 30.24 1493.72 1022.776 4.05 4.04 12.493 3.56026 4.74790 30.34 1493.02 1022.901 4.35 4.34 12.331 3.55060 4.75561 30.38 1492.52 1022.964 4.65 4.64 12.026 3.53740 4.77692 30.50 1491.62 1023.115 4.95 4.94 11.713 3.52165 4.79622 30.61 1490.67 1023.255 5.25 5.23 11.532 3.51875 4.81596 30.73 1490.19 1023.383 5.55 5.53 11.383 3.51654 4.83264 30.83 1489.79 1023.490 5.85 5.83 11.239 3.51407 4.84841 30.93 1489.41 1023.591 6.15 6.13 11.067 3.50682 4.86149 31.00 1488.89 1023.680 6.45 6.43 11.002 3.50072 4.86181 31.00 1488.66 1023.689 6.75 6.73 10.921 3.49789 4.86890 31.04 1488.43 1023.736 7.05 7.03 10.799 3.49548 4.88214 31.12 1488.09 1023.820 7.35 7.33 10.721 3.49616 4.89374 31.19 1487.91 1023.892 7.65 7.62 10.696 3.49701 4.89830 31.22 1487.86 1023.920 7.95 7.92 10.680 3.49894 4.90320 31.25 1487.85 1023.950 8.25 8.22 10.657 3.50042 4.90850 31.29 1487.81 1023.982 8.55 8.52 10.637 3.50016 4.91079 31.30 1487.76 1023.997 8.85 8.82 10.611 3.50000 4.91419 31.32 1487.70 1024.019 9.15 9.12 10.579 3.49874 4.91690 31.34 1487.61 1024.038 9.45 9.42 10.552 3.49816 4.91984 31.35 1487.54 1024.057 9.75 9.71 10.527 3.49748 4.92231 31.37 1487.47 1024.074 10.05 10.01 10.512 3.49683 4.92339 31.37 1487.43 1024.083 10.35 10.31 10.481 3.49637 4.92710 31.40 1487.35 1024.107 10.65 10.61 10.454 3.49689 4.93163 31.42 1487.29 1024.135 10.95 10.91 10.437 3.49638 4.93323 31.43 1487.25 1024.146 11.25 11.21 10.419 3.49595 4.93509 31.44 1487.20 1024.159 11.55 11.51 10.415 3.49608 4.93593 31.45 1487.20 1024.165 11.85 11.81 10.415 3.49696 4.93710 31.46 1487.21 1024.173 12.15 12.10 10.413 3.49705 4.93753 31.46 1487.21 1024.177 12.45 12.40 10.407 3.49892 4.94107 31.48 1487.23 1024.198 12.75 12.70 10.394 3.49933 4.94341 31.50 1487.20 1024.213 13.05 13.00 10.381 3.49938 4.94534 31.51 1487.18 1024.226 13.35 13.30 10.354 3.50146 4.95199 31.56 1487.14 1024.266 13.65 13.60 10.326 3.49838 4.95153 31.55 1487.03 1024.266 13.95 13.90 10.349 3.49994 4.95060 31.54 1487.11 1024.261 14.25 14.19 10.365 3.50250 4.95196 31.56 1487.19 1024.269 14.55 14.49 10.345 3.50309 4.95550 31.58 1487.15 1024.291 14.85 14.79 10.289 3.49289 4.94901 31.53 1486.89 1024.260 15.15 15.09 10.236 3.48597 4.94666 31.50 1486.68 1024.252 15.45 15.39 10.147 3.48272 4.95453 31.55 1486.42 1024.303 15.75 15.69 10.107 3.48229 4.95947 31.58 1486.31 1024.334 16.05 15.99 10.102 3.48131 4.95889 31.57 1486.29 1024.333 16.35 16.28 10.096 3.48142 4.95987 31.58 1486.28 1024.340 16.65 16.58 10.092 3.48131 4.96026 31.58 1486.28 1024.343 16.95 16.88 10.089 3.48212 4.96181 31.59 1486.28 1024.353 17.25 17.18 10.087 3.48419 4.96506 31.61 1486.31 1024.373 17.55 17.48 10.093 3.48429 4.96432 31.61 1486.33 1024.370 17.85 17.78 10.105 3.48549 4.96442 31.61 1486.38 1024.370 18.15 18.08 10.114 3.48681 4.96505 31.62 1486.42 1024.375 18.45 18.37 10.113 3.48677 4.96511 31.62 1486.43 1024.376 18.75 18.67 10.096 3.48477 4.96460 31.61 1486.36 1024.376 19.05 18.97 10.076 3.48354 4.96570 31.62 1486.30 1024.385 19.35 19.27 10.056 3.48163 4.96585 31.61 1486.23 1024.388 19.65 19.57 10.052 3.48161 4.96631 31.62 1486.23 1024.392 19.95 19.87 10.047 3.48049 4.96552 31.61 1486.20 1024.389 20.25 20.17 10.038 3.48010 4.96617 31.61 1486.18 1024.395 20.55 20.46 10.005 3.47955 4.97007 31.64 1486.09 1024.420 20.85 20.76 9.966 3.47811 4.97362 31.66 1485.98 1024.443 21.15 21.06 9.947 3.47703 4.97471 31.66 1485.92 1024.451 21.45 21.36 9.916 3.47551 4.97693 31.67 1485.83 1024.467 21.75 21.66 9.892 3.47576 4.98073 31.70 1485.78 1024.490 22.05 21.96 9.866 3.47606 4.98494 31.72 1485.72 1024.517 22.35 22.25 9.847 3.47529 4.98654 31.73 1485.67 1024.528 22.65 22.55 9.841 3.47517 4.98712 31.73 1485.66 1024.533 22.95 22.85 9.833 3.47481 4.98789 31.74 1485.63 1024.539 23.25 23.15 9.826 3.47498 4.98911 31.75 1485.62 1024.547 23.55 23.45 9.804 3.47466 4.99173 31.76 1485.57 1024.564 23.85 23.75 9.774 3.47352 4.99447 31.78 1485.48 1024.582 24.15 24.05 9.753 3.47303 4.99677 31.79 1485.42 1024.597 24.45 24.34 9.722 3.47256 5.00047 31.81 1485.35 1024.621 24.75 24.64 9.700 3.47145 5.00205 31.82 1485.28 1024.632 25.05 24.94 9.670 3.46962 5.00375 31.83 1485.18 1024.645 25.35 25.24 9.645 3.46838 5.00565 31.84 1485.11 1024.658 25.65 25.54 9.627 3.46883 5.00878 31.86 1485.07 1024.677 25.95 25.84 9.616 3.46804 5.00926 31.86 1485.04 1024.682 26.25 26.13 9.609 3.46822 5.01059 31.87 1485.03 1024.691 26.55 26.43 9.600 3.46746 5.01081 31.87 1485.00 1024.694 26.85 26.73 9.591 3.46660 5.01082 31.87 1484.97 1024.695 27.15 27.03 9.572 3.46573 5.01228 31.87 1484.92 1024.706 27.45 27.33 9.554 3.46494 5.01383 31.88 1484.86 1024.717 27.75 27.63 9.539 3.46433 5.01509 31.89 1484.82 1024.726 28.05 27.93 9.523 3.46308 5.01564 31.89 1484.77 1024.731 28.35 28.22 9.498 3.46142 5.01679 31.90 1484.69 1024.740 28.65 28.52 9.506 3.46156 5.01594 31.89 1484.72 1024.736 28.95 28.82 9.487 3.45899 5.01490 31.88 1484.64 1024.732 29.25 29.12 9.472 3.45617 5.01306 31.87 1484.57 1024.724 29.55 29.42 9.439 3.45506 5.01615 31.88 1484.48 1024.744 29.85 29.72 9.413 3.45597 5.02132 31.92 1484.43 1024.775 30.15 30.01 9.395 3.45163 5.01763 31.89 1484.33 1024.757 30.45 30.31 9.337 3.45096 5.02515 31.93 1484.18 1024.803 30.75 30.61 9.309 3.45070 5.02888 31.95 1484.11 1024.826 31.05 30.91 9.298 3.44905 5.02800 31.95 1484.06 1024.823 31.35 31.21 9.249 3.44846 5.03439 31.98 1483.93 1024.862 31.50 31.36 9.250 3.44907 5.03514 31.99 1483.94 1024.867