*2026/01/16 09:57:54.36 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/09/04 00:43:01.000 END TIME : UTC 2024/09/04 00:43:23.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 114 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 33.95 2 Depth metres 0.15 33.81 3 Temperature 'deg C (ITS90)' 9.927 17.939 4 Conductivity S/m 3.508 3.75573 5 Conductance:Specific S/m 4.14249 5.02297 6 Salinity PSS-78 26.39 31.99 7 Speed:Sound m/s 1486.47 1505.85 8 Density kg/m^3 1018.706 1024.772 $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 : 233 LATITUDE : 48 54.65480 N ! (deg min) LONGITUDE : 125 0.94790 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240904_004301 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:05 114 114 MERGEHDR 1.3 2026/01/16 09:54:04 114 114 HDREDIT2 3.2 2026/01/16 09:55:11 ? ? REMOVECH 8.2 2026/01/16 09:56:21 114 114 CALIB 12.1 2026/01/16 09:56:55 114 114 CLEAN 5.3 2026/01/16 09:57:54 114 114 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:11 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 09:56:21 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:55 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 17.939 3.55748 4.14249 26.39 1505.85 1018.706 0.45 0.45 17.919 3.55747 4.14443 26.40 1505.81 1018.722 0.75 0.75 17.910 3.55763 4.14547 26.41 1505.80 1018.731 1.05 1.05 17.905 3.55762 4.14588 26.41 1505.79 1018.735 1.35 1.35 17.902 3.55778 4.14642 26.42 1505.79 1018.740 1.65 1.65 17.894 3.55783 4.14723 26.42 1505.78 1018.747 1.95 1.95 17.891 3.55823 4.14802 26.43 1505.78 1018.754 2.25 2.25 17.881 3.55838 4.14913 26.43 1505.76 1018.763 2.55 2.55 17.876 3.55829 4.14953 26.44 1505.75 1018.767 2.85 2.85 17.864 3.55848 4.15084 26.44 1505.73 1018.778 3.15 3.15 17.835 3.55951 4.15488 26.47 1505.68 1018.807 3.45 3.45 17.792 3.55810 4.15748 26.49 1505.57 1018.831 3.75 3.75 16.966 3.58730 4.27403 27.28 1503.96 1019.623 4.05 4.05 15.230 3.75573 4.66777 29.98 1501.64 1022.078 4.35 4.35 14.250 3.73316 4.75556 30.54 1499.14 1022.714 4.65 4.65 13.824 3.72322 4.79498 30.79 1498.03 1022.993 4.95 4.95 13.386 3.71104 4.83383 31.03 1496.87 1023.268 5.25 5.25 13.048 3.70319 4.86653 31.23 1495.98 1023.493 5.55 5.55 12.811 3.69006 4.87961 31.31 1495.27 1023.595 5.85 5.85 12.672 3.68322 4.88854 31.36 1494.87 1023.663 6.15 6.14 12.573 3.67313 4.88801 31.34 1494.52 1023.673 6.45 6.44 12.497 3.66875 4.89211 31.37 1494.29 1023.705 6.75 6.74 12.406 3.66080 4.89329 31.37 1493.99 1023.723 7.05 7.04 12.296 3.65823 4.90432 31.43 1493.70 1023.798 7.35 7.34 12.213 3.65464 4.91047 31.47 1493.46 1023.842 7.65 7.64 12.143 3.65061 4.91426 31.49 1493.25 1023.872 7.95 7.94 12.083 3.64688 4.91716 31.50 1493.07 1023.896 8.25 8.23 12.012 3.64315 4.92153 31.53 1492.86 1023.929 8.55 8.53 11.946 3.64103 4.92754 31.56 1492.67 1023.970 8.85 8.83 11.895 3.63354 4.92414 31.53 1492.47 1023.958 9.15 9.13 11.804 3.62775 4.92842 31.55 1492.18 1023.992 9.45 9.43 11.743 3.62539 4.93342 31.58 1492.01 1024.027 9.75 9.73 11.692 3.62333 4.93743 31.61 1491.87 1024.056 10.05 10.03 11.629 3.61694 4.93724 31.60 1491.64 1024.062 10.35 10.33 11.564 3.61326 4.94100 31.62 1491.45 1024.090 10.65 10.62 11.508 3.60939 4.94334 31.63 1491.27 1024.110 10.95 10.92 11.438 3.60700 4.94948 31.66 1491.07 1024.152 11.25 11.22 11.402 3.60530 4.95204 31.68 1490.97 1024.170 11.55 11.52 11.359 3.60220 4.95367 31.69 1490.83 1024.185 11.85 11.82 11.325 3.60024 4.95567 31.70 1490.73 1024.200 12.15 12.12 11.304 3.59763 4.95482 31.69 1490.65 1024.199 12.45 12.42 11.257 3.59522 4.95803 31.70 1490.51 1024.222 12.75 12.71 11.241 3.59411 4.95862 31.71 1490.46 1024.228 13.05 13.01 11.173 3.58970 4.96181 31.72 1490.25 1024.253 13.35 13.31 11.139 3.58723 4.96310 31.73 1490.14 1024.264 13.65 13.61 11.109 3.58572 4.96517 31.74 1490.05 1024.280 13.95 13.91 11.087 3.58493 4.96704 31.75 1489.99 1024.293 14.25 14.21 11.072 3.58397 4.96784 31.75 1489.94 1024.300 14.55 14.51 11.066 3.58425 4.96900 31.76 1489.94 1024.308 14.85 14.80 11.044 3.58214 4.96919 31.76 1489.86 1024.312 15.15 15.10 11.005 3.57872 4.96978 31.76 1489.73 1024.320 15.45 15.40 10.980 3.57772 4.97179 31.77 1489.66 1024.335 15.75 15.70 10.929 3.57440 4.97429 31.78 1489.50 1024.354 16.05 16.00 10.909 3.57247 4.97439 31.78 1489.43 1024.358 16.35 16.30 10.876 3.57071 4.97651 31.79 1489.33 1024.373 16.65 16.60 10.858 3.56865 4.97612 31.79 1489.27 1024.374 16.95 16.89 10.834 3.56708 4.97721 31.79 1489.19 1024.383 17.25 17.19 10.810 3.56474 4.97736 31.79 1489.11 1024.387 17.55 17.49 10.779 3.56316 4.97936 31.80 1489.02 1024.402 17.85 17.79 10.750 3.56173 4.98143 31.81 1488.93 1024.417 18.15 18.09 10.734 3.56138 4.98320 31.82 1488.89 1024.429 18.45 18.39 10.713 3.56088 4.98547 31.83 1488.84 1024.445 18.75 18.69 10.709 3.56030 4.98516 31.83 1488.83 1024.445 19.05 18.98 10.691 3.55856 4.98524 31.83 1488.77 1024.448 19.35 19.28 10.676 3.55824 4.98685 31.84 1488.73 1024.459 19.65 19.58 10.658 3.55669 4.98722 31.84 1488.67 1024.464 19.95 19.88 10.649 3.55543 4.98679 31.83 1488.64 1024.464 20.25 20.18 10.626 3.55462 4.98879 31.85 1488.58 1024.478 20.55 20.48 10.615 3.55255 4.98738 31.83 1488.53 1024.472 20.85 20.78 10.589 3.55228 4.99076 31.86 1488.46 1024.494 21.15 21.07 10.568 3.55102 4.99186 31.86 1488.40 1024.503 21.45 21.37 10.544 3.54947 4.99312 31.87 1488.33 1024.513 21.75 21.67 10.533 3.54788 4.99240 31.86 1488.29 1024.511 22.05 21.97 10.513 3.54644 4.99323 31.86 1488.22 1024.518 22.35 22.27 10.494 3.54583 4.99502 31.87 1488.17 1024.531 22.65 22.57 10.477 3.54544 4.99684 31.88 1488.13 1024.543 22.95 22.86 10.464 3.54412 4.99680 31.88 1488.09 1024.545 23.25 23.16 10.445 3.54241 4.99703 31.88 1488.02 1024.549 23.55 23.46 10.427 3.54082 4.99735 31.88 1487.96 1024.554 23.85 23.76 10.397 3.53888 4.99882 31.89 1487.87 1024.565 24.15 24.06 10.367 3.53801 5.00187 31.91 1487.79 1024.585 24.45 24.36 10.336 3.53380 5.00027 31.89 1487.66 1024.580 24.75 24.66 10.304 3.53264 5.00320 31.91 1487.57 1024.600 25.05 24.95 10.269 3.52938 5.00346 31.90 1487.45 1024.605 25.35 25.25 10.245 3.52842 5.00559 31.92 1487.38 1024.620 25.65 25.55 10.231 3.52792 5.00679 31.92 1487.34 1024.628 25.95 25.85 10.225 3.52730 5.00687 31.92 1487.32 1024.631 26.25 26.15 10.221 3.52732 5.00739 31.93 1487.32 1024.635 26.55 26.45 10.222 3.52738 5.00735 31.93 1487.33 1024.636 26.85 26.74 10.220 3.52769 5.00801 31.93 1487.33 1024.641 27.15 27.04 10.213 3.52745 5.00867 31.93 1487.32 1024.646 27.45 27.34 10.209 3.52674 5.00832 31.93 1487.30 1024.646 27.75 27.64 10.198 3.52691 5.01008 31.94 1487.28 1024.658 28.05 27.94 10.193 3.52565 5.00897 31.93 1487.26 1024.653 28.35 28.24 10.169 3.52444 5.01067 31.94 1487.19 1024.666 28.65 28.54 10.159 3.52409 5.01161 31.95 1487.16 1024.673 28.95 28.83 10.142 3.52223 5.01137 31.94 1487.10 1024.674 29.25 29.13 10.132 3.52166 5.01206 31.95 1487.07 1024.679 29.55 29.43 10.125 3.52111 5.01228 31.95 1487.05 1024.682 29.85 29.73 10.112 3.51983 5.01234 31.94 1487.01 1024.685 30.15 30.03 10.105 3.51999 5.01347 31.95 1487.00 1024.693 30.45 30.33 10.092 3.51896 5.01388 31.95 1486.96 1024.697 30.75 30.62 10.090 3.51966 5.01519 31.96 1486.97 1024.706 31.05 30.92 10.099 3.51766 5.01108 31.93 1486.97 1024.684 31.35 31.22 10.074 3.51698 5.01361 31.95 1486.90 1024.701 31.65 31.52 10.069 3.51709 5.01459 31.95 1486.89 1024.708 31.95 31.82 10.065 3.51581 5.01325 31.94 1486.87 1024.702 32.25 32.12 10.041 3.51461 5.01505 31.95 1486.80 1024.715 32.55 32.42 10.015 3.51076 5.01321 31.94 1486.69 1024.707 32.85 32.71 9.980 3.50975 5.01686 31.96 1486.60 1024.731 33.15 33.01 9.952 3.50869 5.01929 31.97 1486.52 1024.747 33.45 33.31 9.937 3.50800 5.02049 31.98 1486.48 1024.756 33.75 33.61 9.927 3.50879 5.02297 31.99 1486.47 1024.772 33.95 33.81 9.933 3.50843 5.02160 31.99 1486.48 1024.765