*2026/01/16 09:57:53.11 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/07/10 22:30:18.000 END TIME : UTC 2024/07/10 22:30:39.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 108 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 32.14 2 Depth metres 0.15 31.99 3 Temperature 'deg C (ITS90)' 9.464 18.923 4 Conductivity S/m 3.51707 3.79417 5 Conductance:Specific S/m 4.17406 5.10551 6 Salinity PSS-78 26.65 32.52 7 Speed:Sound m/s 1485.37 1509.16 8 Density kg/m^3 1018.671 1025.247 $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 : 181 LATITUDE : 49 37.57350 N ! (deg min) LONGITUDE : 126 29.54910 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240710_223018 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:03 108 108 MERGEHDR 1.3 2026/01/16 09:53:57 108 108 HDREDIT2 3.2 2026/01/16 09:55:08 ? ? REMOVECH 8.2 2026/01/16 09:56:19 108 108 CALIB 12.1 2026/01/16 09:56:52 108 108 CLEAN 5.3 2026/01/16 09:57:53 108 108 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:08 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 18.587 3.69132 4.23446 27.06 1508.54 1019.068 0.45 0.45 18.923 3.66676 4.17406 26.65 1509.06 1018.671 0.75 0.75 18.913 3.67915 4.18914 26.75 1509.16 1018.756 1.05 1.05 18.818 3.68580 4.20579 26.87 1509.01 1018.867 1.35 1.35 18.649 3.68419 4.22025 26.96 1508.63 1018.983 1.65 1.65 18.601 3.68500 4.22583 27.00 1508.54 1019.025 1.95 1.95 18.565 3.68561 4.23002 27.03 1508.47 1019.056 2.25 2.25 18.494 3.68622 4.23757 27.08 1508.32 1019.113 2.55 2.55 18.297 3.68721 4.25808 27.22 1507.90 1019.267 2.85 2.85 18.020 3.69255 4.29169 27.45 1507.33 1019.507 3.15 3.15 17.765 3.70452 4.33122 27.72 1506.88 1019.774 3.45 3.45 17.031 3.74494 4.45498 28.57 1505.63 1020.592 3.75 3.75 16.217 3.77099 4.57456 29.38 1504.05 1021.397 4.05 4.05 15.659 3.76406 4.62879 29.73 1502.71 1021.793 4.35 4.35 15.089 3.76988 4.70189 30.22 1501.47 1022.290 4.65 4.65 14.279 3.78115 4.81322 30.96 1499.72 1023.029 4.95 4.95 13.840 3.79180 4.88134 31.41 1498.82 1023.469 5.25 5.25 13.555 3.79417 4.92050 31.67 1498.18 1023.726 5.55 5.54 13.292 3.77782 4.93290 31.73 1497.39 1023.830 5.85 5.84 13.159 3.76553 4.93395 31.73 1496.95 1023.854 6.15 6.14 12.961 3.76124 4.95415 31.85 1496.43 1023.992 6.45 6.44 12.681 3.74321 4.96701 31.92 1495.57 1024.098 6.75 6.74 12.380 3.71371 4.96754 31.89 1494.53 1024.137 7.05 7.04 12.306 3.70179 4.96136 31.84 1494.22 1024.112 7.35 7.34 12.216 3.69453 4.96360 31.85 1493.92 1024.136 7.65 7.63 12.089 3.69131 4.97625 31.93 1493.59 1024.220 7.95 7.93 11.950 3.68967 4.99277 32.03 1493.23 1024.328 8.25 8.23 11.896 3.68890 4.99909 32.07 1493.10 1024.370 8.55 8.53 11.867 3.68778 5.00152 32.08 1493.02 1024.387 8.85 8.83 11.850 3.68655 5.00206 32.08 1492.97 1024.393 9.15 9.13 11.823 3.68484 5.00344 32.09 1492.89 1024.405 9.45 9.43 11.785 3.68470 5.00849 32.12 1492.80 1024.438 9.75 9.72 11.755 3.67933 5.00520 32.10 1492.67 1024.424 10.05 10.02 11.702 3.67466 5.00602 32.10 1492.49 1024.435 10.35 10.32 11.647 3.66986 5.00701 32.10 1492.31 1024.447 10.65 10.62 11.589 3.66370 5.00659 32.09 1492.10 1024.452 10.95 10.92 11.541 3.66249 5.01153 32.12 1491.97 1024.485 11.25 11.22 11.485 3.65838 5.01357 32.13 1491.79 1024.503 11.55 11.51 11.447 3.65680 5.01660 32.14 1491.69 1024.525 11.85 11.81 11.417 3.65418 5.01715 32.14 1491.59 1024.532 12.15 12.11 11.382 3.65348 5.02105 32.17 1491.50 1024.558 12.45 12.41 11.357 3.65023 5.02001 32.16 1491.40 1024.556 12.75 12.71 11.316 3.64636 5.02033 32.15 1491.26 1024.562 13.05 13.01 11.275 3.64336 5.02190 32.16 1491.13 1024.576 13.35 13.31 11.204 3.63959 5.02646 32.18 1490.92 1024.609 13.65 13.60 11.145 3.63164 5.02364 32.16 1490.68 1024.600 13.95 13.90 11.095 3.62830 5.02608 32.17 1490.52 1024.619 14.25 14.20 11.011 3.62178 5.02868 32.18 1490.24 1024.642 14.55 14.50 10.932 3.61320 5.02777 32.16 1489.95 1024.644 14.85 14.80 10.867 3.60629 5.02728 32.15 1489.71 1024.648 15.15 15.10 10.791 3.60145 5.03118 32.17 1489.47 1024.677 15.45 15.39 10.731 3.59659 5.03287 32.17 1489.27 1024.693 15.75 15.69 10.674 3.59437 5.03776 32.20 1489.10 1024.725 16.05 15.99 10.633 3.59342 5.04222 32.23 1489.00 1024.755 16.35 16.29 10.606 3.59170 5.04372 32.24 1488.91 1024.766 16.65 16.59 10.582 3.59120 5.04637 32.25 1488.85 1024.784 16.95 16.89 10.558 3.58965 5.04755 32.26 1488.78 1024.794 17.25 17.19 10.536 3.58809 5.04857 32.26 1488.71 1024.802 17.55 17.48 10.514 3.58602 5.04881 32.26 1488.63 1024.806 17.85 17.78 10.498 3.58596 5.05091 32.27 1488.60 1024.820 18.15 18.08 10.488 3.58490 5.05084 32.27 1488.56 1024.822 18.45 18.38 10.463 3.58258 5.05113 32.27 1488.48 1024.827 18.75 18.68 10.427 3.58005 5.05272 32.28 1488.36 1024.839 19.05 18.98 10.401 3.57870 5.05447 32.29 1488.28 1024.852 19.35 19.27 10.384 3.57787 5.05583 32.29 1488.24 1024.862 19.65 19.57 10.378 3.57570 5.05363 32.28 1488.20 1024.852 19.95 19.87 10.352 3.57382 5.05457 32.28 1488.12 1024.860 20.25 20.17 10.337 3.57155 5.05352 32.27 1488.06 1024.857 20.55 20.47 10.265 3.56794 5.05872 32.30 1487.84 1024.892 20.85 20.77 10.221 3.56338 5.05866 32.29 1487.67 1024.896 21.15 21.06 10.181 3.56063 5.06052 32.30 1487.54 1024.910 21.45 21.36 10.142 3.55936 5.06426 32.32 1487.44 1024.934 21.75 21.66 10.102 3.55865 5.06901 32.35 1487.33 1024.964 22.05 21.96 10.068 3.55668 5.07110 32.36 1487.23 1024.980 22.35 22.26 10.047 3.55413 5.07048 32.35 1487.15 1024.979 22.65 22.56 10.015 3.55214 5.07226 32.36 1487.05 1024.992 22.95 22.85 9.994 3.55211 5.07532 32.38 1487.00 1025.011 23.25 23.15 9.973 3.55064 5.07629 32.38 1486.93 1025.019 23.55 23.45 9.967 3.54995 5.07609 32.38 1486.91 1025.020 23.85 23.75 9.959 3.54901 5.07599 32.38 1486.88 1025.021 24.15 24.05 9.944 3.54849 5.07743 32.39 1486.84 1025.031 24.45 24.35 9.921 3.54754 5.07944 32.40 1486.78 1025.045 24.75 24.64 9.901 3.54554 5.07937 32.39 1486.71 1025.047 25.05 24.94 9.896 3.54437 5.07846 32.39 1486.69 1025.044 25.35 25.24 9.890 3.54325 5.07781 32.38 1486.66 1025.042 25.65 25.54 9.881 3.54218 5.07756 32.38 1486.63 1025.042 25.95 25.84 9.828 3.53988 5.08193 32.40 1486.47 1025.071 26.25 26.14 9.797 3.53868 5.08475 32.42 1486.38 1025.089 26.55 26.43 9.769 3.53679 5.08611 32.42 1486.30 1025.100 26.85 26.73 9.736 3.53404 5.08694 32.42 1486.18 1025.108 27.15 27.03 9.703 3.53191 5.08881 32.43 1486.08 1025.121 27.45 27.33 9.682 3.53058 5.08999 32.44 1486.01 1025.130 27.75 27.63 9.651 3.52916 5.09237 32.45 1485.92 1025.146 28.05 27.93 9.638 3.52820 5.09296 32.45 1485.88 1025.151 28.35 28.22 9.633 3.52822 5.09374 32.46 1485.87 1025.157 28.65 28.52 9.639 3.52833 5.09302 32.45 1485.89 1025.154 28.95 28.82 9.631 3.52800 5.09364 32.46 1485.87 1025.159 29.25 29.12 9.614 3.52819 5.09647 32.47 1485.84 1025.177 29.55 29.42 9.593 3.52645 5.09713 32.48 1485.77 1025.183 29.85 29.72 9.595 3.52470 5.09426 32.46 1485.75 1025.168 30.15 30.01 9.566 3.52249 5.09531 32.46 1485.66 1025.177 30.45 30.31 9.534 3.52185 5.09910 32.48 1485.57 1025.201 30.75 30.61 9.521 3.52140 5.10039 32.49 1485.54 1025.210 31.05 30.91 9.523 3.51952 5.09736 32.47 1485.52 1025.194 31.35 31.21 9.501 3.51786 5.09817 32.47 1485.45 1025.201 31.65 31.51 9.479 3.51707 5.10033 32.48 1485.39 1025.216 31.95 31.80 9.464 3.51816 5.10409 32.51 1485.37 1025.239 32.14 31.99 9.472 3.51998 5.10551 32.52 1485.42 1025.247