*2026/01/16 09:57:53.77 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/08/14 22:08:11.000 END TIME : UTC 2024/08/14 22:08:31.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 103 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 30.78 2 Depth metres 0.15 30.64 3 Temperature 'deg C (ITS90)' 9.611 17.942 4 Conductivity S/m 3.50594 3.91994 5 Conductance:Specific S/m 4.19466 5.06487 6 Salinity PSS-78 26.76 32.25 7 Speed:Sound m/s 1485.58 1506.77 8 Density kg/m^3 1018.987 1025.009 $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 : 208 LATITUDE : 48 57.33170 N ! (deg min) LONGITUDE : 124 59.72050 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240814_220811 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:04 103 103 MERGEHDR 1.3 2026/01/16 09:54:00 103 103 HDREDIT2 3.2 2026/01/16 09:55:09 ? ? REMOVECH 8.2 2026/01/16 09:56:20 103 103 CALIB 12.1 2026/01/16 09:56:53 103 103 CLEAN 5.3 2026/01/16 09:57:53 103 103 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:09 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 09:56:20 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:53 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 17.942 3.60254 4.19466 26.76 1506.28 1018.987 0.45 0.45 17.921 3.60484 4.19943 26.79 1506.25 1019.018 0.75 0.75 17.844 3.60675 4.20914 26.86 1506.10 1019.088 1.05 1.05 17.723 3.62996 4.24826 27.13 1506.05 1019.325 1.35 1.35 17.659 3.64679 4.27439 27.31 1506.07 1019.480 1.65 1.65 17.626 3.66286 4.29647 27.47 1506.15 1019.607 1.95 1.95 17.398 3.71295 4.37873 28.04 1506.12 1020.100 2.25 2.25 16.973 3.70146 4.40933 28.24 1505.06 1020.350 2.55 2.55 16.811 3.67865 4.39911 28.16 1504.47 1020.326 2.85 2.85 16.697 3.75596 4.50384 28.90 1504.97 1020.919 3.15 3.15 16.716 3.83377 4.59508 29.55 1505.78 1021.416 3.45 3.45 16.777 3.91994 4.69146 30.24 1506.77 1021.935 3.75 3.75 16.350 3.91181 4.73013 30.50 1505.75 1022.227 4.05 4.05 15.885 3.83111 4.68523 30.15 1503.90 1022.064 4.35 4.35 15.130 3.81448 4.75263 30.58 1502.02 1022.562 4.65 4.64 14.372 3.74872 4.76059 30.59 1499.59 1022.725 4.95 4.94 13.921 3.71746 4.77568 30.66 1498.20 1022.875 5.25 5.24 13.422 3.69548 4.80907 30.86 1496.79 1023.128 5.55 5.54 13.033 3.67867 4.83618 31.02 1495.68 1023.329 5.85 5.84 12.611 3.66615 4.87378 31.25 1494.53 1023.588 6.15 6.14 12.251 3.65173 4.90151 31.41 1493.50 1023.784 6.45 6.44 12.053 3.63984 4.91171 31.46 1492.89 1023.863 6.75 6.74 11.917 3.63001 4.91644 31.48 1492.45 1023.904 7.05 7.04 11.790 3.62026 4.92022 31.50 1492.03 1023.939 7.35 7.33 11.583 3.61381 4.93915 31.61 1491.45 1024.066 7.65 7.63 11.426 3.61078 4.95636 31.71 1491.03 1024.177 7.95 7.93 11.351 3.60994 4.96543 31.77 1490.84 1024.235 8.25 8.23 11.293 3.60556 4.96726 31.78 1490.65 1024.252 8.55 8.53 11.206 3.59874 4.96981 31.78 1490.36 1024.275 8.85 8.83 11.087 3.59338 4.97871 31.83 1490.01 1024.336 9.15 9.13 11.018 3.58876 4.98190 31.85 1489.79 1024.361 9.45 9.42 10.954 3.58022 4.97890 31.82 1489.53 1024.351 9.75 9.72 10.899 3.57718 4.98224 31.84 1489.36 1024.375 10.05 10.02 10.863 3.57650 4.98640 31.86 1489.27 1024.403 10.35 10.32 10.831 3.57638 4.99062 31.89 1489.19 1024.430 10.65 10.62 10.810 3.57622 4.99333 31.90 1489.14 1024.448 10.95 10.92 10.771 3.57458 4.99652 31.92 1489.03 1024.470 11.25 11.21 10.751 3.57306 4.99715 31.92 1488.97 1024.476 11.55 11.51 10.743 3.57182 4.99651 31.92 1488.94 1024.474 11.85 11.81 10.730 3.57117 4.99737 31.92 1488.90 1024.481 12.15 12.11 10.720 3.57109 4.99879 31.93 1488.88 1024.491 12.45 12.41 10.705 3.57082 5.00040 31.94 1488.85 1024.503 12.75 12.71 10.684 3.56851 5.00015 31.94 1488.77 1024.504 13.05 13.01 10.654 3.56547 5.00005 31.93 1488.66 1024.507 13.35 13.30 10.628 3.56364 5.00122 31.94 1488.58 1024.517 13.65 13.60 10.605 3.56203 5.00209 31.94 1488.51 1024.525 13.95 13.90 10.585 3.56086 5.00325 31.95 1488.45 1024.534 14.25 14.20 10.565 3.56036 5.00546 31.96 1488.40 1024.549 14.55 14.50 10.539 3.55914 5.00742 31.97 1488.32 1024.563 14.85 14.80 10.514 3.55767 5.00879 31.98 1488.25 1024.574 15.15 15.10 10.497 3.55638 5.00940 31.98 1488.19 1024.580 15.45 15.39 10.471 3.55544 5.01174 31.99 1488.12 1024.596 15.75 15.69 10.440 3.55302 5.01276 32.00 1488.02 1024.605 16.05 15.99 10.417 3.55007 5.01187 31.99 1487.93 1024.603 16.35 16.29 10.389 3.54894 5.01424 32.00 1487.85 1024.619 16.65 16.59 10.376 3.54768 5.01426 32.00 1487.81 1024.622 16.95 16.89 10.356 3.54731 5.01662 32.01 1487.76 1024.637 17.25 17.18 10.339 3.54715 5.01878 32.02 1487.72 1024.652 17.55 17.48 10.322 3.54776 5.02198 32.05 1487.69 1024.672 17.85 17.78 10.314 3.54627 5.02111 32.04 1487.65 1024.669 18.15 18.08 10.309 3.54522 5.02028 32.03 1487.63 1024.666 18.45 18.38 10.297 3.54349 5.01960 32.02 1487.58 1024.664 18.75 18.68 10.272 3.54298 5.02234 32.04 1487.52 1024.682 19.05 18.98 10.258 3.54211 5.02320 32.05 1487.48 1024.690 19.35 19.27 10.244 3.54065 5.02302 32.04 1487.43 1024.691 19.65 19.57 10.232 3.53968 5.02339 32.04 1487.39 1024.695 19.95 19.87 10.219 3.53967 5.02518 32.05 1487.37 1024.707 20.25 20.17 10.213 3.53808 5.02377 32.04 1487.34 1024.701 20.55 20.47 10.200 3.53853 5.02628 32.06 1487.31 1024.717 20.85 20.77 10.191 3.53822 5.02721 32.06 1487.29 1024.724 21.15 21.06 10.177 3.53779 5.02851 32.07 1487.26 1024.733 21.45 21.36 10.169 3.53663 5.02803 32.07 1487.23 1024.732 21.75 21.66 10.147 3.53621 5.03055 32.08 1487.17 1024.749 22.05 21.96 10.139 3.53438 5.02910 32.07 1487.13 1024.743 22.35 22.26 10.119 3.53292 5.03000 32.07 1487.07 1024.750 22.65 22.56 10.093 3.53209 5.03244 32.09 1487.00 1024.767 22.95 22.86 10.073 3.53105 5.03387 32.10 1486.94 1024.777 23.25 23.15 10.066 3.53001 5.03345 32.09 1486.91 1024.777 23.55 23.45 10.052 3.52952 5.03472 32.10 1486.87 1024.786 23.85 23.75 10.034 3.52900 5.03657 32.11 1486.83 1024.798 24.15 24.05 10.018 3.52823 5.03770 32.11 1486.78 1024.807 24.45 24.35 9.976 3.52595 5.04059 32.13 1486.65 1024.827 24.75 24.65 9.953 3.52265 5.03912 32.12 1486.56 1024.821 25.05 24.94 9.929 3.52171 5.04122 32.13 1486.49 1024.836 25.35 25.24 9.901 3.52096 5.04424 32.15 1486.41 1024.856 25.65 25.54 9.882 3.52013 5.04583 32.15 1486.36 1024.867 25.95 25.84 9.863 3.51904 5.04695 32.16 1486.30 1024.875 26.25 26.14 9.839 3.51880 5.05012 32.18 1486.24 1024.896 26.55 26.44 9.834 3.51658 5.04764 32.16 1486.21 1024.883 26.85 26.73 9.801 3.51559 5.05096 32.18 1486.12 1024.905 27.15 27.03 9.772 3.51446 5.05358 32.19 1486.04 1024.922 27.45 27.33 9.764 3.51335 5.05307 32.19 1486.01 1024.921 27.75 27.63 9.757 3.51316 5.05393 32.19 1485.99 1024.928 28.05 27.93 9.749 3.51334 5.05537 32.20 1485.98 1024.937 28.35 28.23 9.743 3.51222 5.05458 32.20 1485.95 1024.935 28.65 28.52 9.736 3.51175 5.05496 32.20 1485.93 1024.938 28.95 28.82 9.722 3.51119 5.05609 32.20 1485.90 1024.947 29.25 29.12 9.710 3.51049 5.05694 32.21 1485.86 1024.953 29.55 29.42 9.705 3.51013 5.05711 32.21 1485.85 1024.956 29.85 29.72 9.697 3.50864 5.05619 32.20 1485.81 1024.953 30.15 30.02 9.675 3.50779 5.05807 32.21 1485.75 1024.965 30.45 30.32 9.648 3.50594 5.05939 32.22 1485.66 1024.975 30.78 30.64 9.611 3.50596 5.06487 32.25 1485.58 1025.009