*2026/01/16 09:57:50.85 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/05/22 20:52:38.000 END TIME : UTC 2024/05/22 20:53:02.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 124 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 37.08 2 Depth metres 0.15 36.96 3 Temperature 'deg C (ITS90)' 9.825 17.225 4 Conductivity S/m 0.75455 3.50531 5 Conductance:Specific S/m 0.89348 5.02806 6 Salinity PSS-78 4.97 32.02 7 Speed:Sound m/s 1478.49 1491.76 8 Density kg/m^3 1002.545 1024.82 $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 : 130 LATITUDE : 49 10.72610 N ! (deg min) LONGITUDE : 124 49.60410 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240522_205238 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:00 124 124 MERGEHDR 1.3 2026/01/16 09:53:53 124 124 HDREDIT2 3.2 2026/01/16 09:55:06 ? ? REMOVECH 8.2 2026/01/16 09:56:17 124 124 CALIB 12.1 2026/01/16 09:56:50 124 124 CLEAN 5.3 2026/01/16 09:57:50 124 124 $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 09:56:50 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 17.225 0.75455 0.89348 4.97 1479.31 1002.545 0.45 0.46 17.132 0.77570 0.92055 5.14 1479.20 1002.687 0.75 0.76 16.981 0.81768 0.97387 5.45 1479.07 1002.960 1.05 1.07 16.664 0.86611 1.03940 5.85 1478.49 1003.319 1.35 1.37 16.164 1.24131 1.50774 8.73 1480.16 1005.610 1.65 1.68 16.108 1.51621 1.84420 10.85 1482.42 1007.245 1.95 1.98 15.900 1.72231 2.10552 12.53 1483.67 1008.565 2.25 2.28 15.726 1.77682 2.18143 13.02 1483.66 1008.972 2.55 2.59 15.506 1.91432 2.36303 14.20 1484.29 1009.915 2.85 2.89 15.414 2.00245 2.47740 14.94 1484.86 1010.506 3.15 3.19 15.055 2.21343 2.76296 16.82 1485.84 1012.013 3.45 3.49 14.879 2.31571 2.90340 17.75 1486.33 1012.761 3.75 3.79 14.681 2.44342 3.07882 18.92 1487.03 1013.696 4.05 4.10 14.378 2.55184 3.24016 20.00 1487.27 1014.581 4.35 4.40 13.857 2.82992 3.64148 22.71 1488.68 1016.763 4.65 4.70 13.684 3.02545 3.91043 24.56 1490.26 1018.216 4.95 5.00 13.045 3.26203 4.28704 27.14 1491.13 1020.326 5.25 5.30 12.557 3.43139 4.56820 29.08 1491.76 1021.915 5.55 5.60 11.983 3.48921 4.71735 30.08 1490.98 1022.797 5.85 5.90 11.653 3.50481 4.78111 30.49 1490.34 1023.182 6.15 6.19 11.173 3.50531 4.84516 30.90 1489.14 1023.581 6.45 6.49 10.956 3.50276 4.87095 31.06 1488.57 1023.743 6.75 6.79 10.742 3.50265 4.89993 31.24 1488.03 1023.922 7.05 7.09 10.589 3.50331 4.92191 31.37 1487.66 1024.056 7.35 7.39 10.481 3.50278 4.93615 31.46 1487.38 1024.144 7.65 7.69 10.417 3.50192 4.94382 31.51 1487.21 1024.192 7.95 7.99 10.347 3.50217 4.95400 31.57 1487.04 1024.255 8.25 8.28 10.327 3.50465 4.96031 31.61 1487.03 1024.292 8.55 8.58 10.302 3.50208 4.96020 31.61 1486.94 1024.295 8.85 8.88 10.282 3.50083 4.96119 31.61 1486.88 1024.303 9.15 9.18 10.243 3.50127 4.96737 31.65 1486.79 1024.341 9.45 9.48 10.224 3.50095 4.96960 31.67 1486.74 1024.356 9.75 9.78 10.199 3.50167 4.97404 31.69 1486.69 1024.383 10.05 10.08 10.178 3.50167 4.97701 31.71 1486.64 1024.402 10.35 10.37 10.155 3.50058 4.97884 31.72 1486.57 1024.415 10.65 10.67 10.137 3.50055 4.98130 31.74 1486.53 1024.431 10.95 10.97 10.120 3.50108 4.98447 31.76 1486.50 1024.451 11.25 11.27 10.110 3.50021 4.98469 31.76 1486.47 1024.454 11.55 11.57 10.098 3.50038 4.98664 31.77 1486.44 1024.467 11.85 11.87 10.088 3.49999 4.98749 31.77 1486.42 1024.474 12.15 12.17 10.079 3.50057 4.98958 31.79 1486.41 1024.487 12.45 12.46 10.083 3.49999 4.98811 31.78 1486.42 1024.480 12.75 12.76 10.073 3.50043 4.99014 31.79 1486.40 1024.493 13.05 13.06 10.074 3.50020 4.98978 31.79 1486.40 1024.492 13.35 13.36 10.066 3.50032 4.99108 31.80 1486.39 1024.501 13.65 13.66 10.054 3.49983 4.99210 31.80 1486.36 1024.509 13.95 13.96 10.054 3.50018 4.99257 31.80 1486.37 1024.513 14.25 14.25 10.050 3.50045 4.99344 31.81 1486.37 1024.519 14.55 14.55 10.042 3.50113 4.99567 31.82 1486.36 1024.533 14.85 14.85 10.051 3.50036 4.99328 31.81 1486.38 1024.521 15.15 15.15 10.043 3.50169 4.99635 31.83 1486.38 1024.539 15.45 15.45 10.058 3.50120 4.99340 31.81 1486.42 1024.523 15.75 15.75 10.043 3.49926 4.99285 31.80 1486.36 1024.522 16.05 16.05 10.029 3.49956 4.99520 31.82 1486.33 1024.538 16.35 16.34 10.011 3.49949 4.99767 31.83 1486.29 1024.554 16.65 16.64 10.014 3.49933 4.99702 31.83 1486.30 1024.551 16.95 16.94 10.005 3.49910 4.99797 31.84 1486.28 1024.558 17.25 17.24 10.009 3.49905 4.99736 31.83 1486.29 1024.556 17.55 17.54 10.001 3.49939 4.99895 31.84 1486.28 1024.566 17.85 17.84 9.997 3.49965 4.99997 31.85 1486.28 1024.574 18.15 18.14 9.994 3.49947 5.00016 31.85 1486.27 1024.576 18.45 18.43 9.990 3.49984 5.00127 31.86 1486.27 1024.584 18.75 18.73 9.988 3.49913 5.00046 31.85 1486.26 1024.581 19.05 19.03 9.989 3.50057 5.00243 31.86 1486.29 1024.593 19.35 19.33 9.989 3.50175 5.00413 31.88 1486.31 1024.603 19.65 19.63 9.980 3.50048 5.00347 31.87 1486.27 1024.602 19.95 19.93 9.969 3.49929 5.00348 31.87 1486.23 1024.604 20.25 20.22 9.961 3.50034 5.00612 31.89 1486.23 1024.620 20.55 20.52 9.952 3.49976 5.00656 31.89 1486.21 1024.624 20.85 20.82 9.952 3.49954 5.00621 31.88 1486.21 1024.623 21.15 21.12 9.948 3.50040 5.00805 31.90 1486.21 1024.635 21.45 21.42 9.940 3.49947 5.00778 31.89 1486.19 1024.635 21.75 21.72 9.944 3.50068 5.00902 31.90 1486.22 1024.643 22.05 22.02 9.939 3.50137 5.01063 31.91 1486.22 1024.654 22.35 22.31 9.949 3.50033 5.00776 31.89 1486.24 1024.639 22.65 22.61 9.933 3.49904 5.00816 31.90 1486.18 1024.643 22.95 22.91 9.935 3.49954 5.00867 31.90 1486.20 1024.647 23.25 23.21 9.929 3.50090 5.01147 31.92 1486.21 1024.664 23.55 23.51 9.933 3.49960 5.00897 31.90 1486.21 1024.651 23.85 23.81 9.932 3.49982 5.00942 31.90 1486.21 1024.655 24.15 24.10 9.925 3.49979 5.01042 31.91 1486.20 1024.662 24.45 24.40 9.926 3.49939 5.00968 31.90 1486.20 1024.659 24.75 24.70 9.918 3.49994 5.01165 31.92 1486.19 1024.672 25.05 25.00 9.919 3.50002 5.01164 31.92 1486.20 1024.673 25.35 25.30 9.911 3.50004 5.01283 31.92 1486.18 1024.682 25.65 25.60 9.910 3.50030 5.01329 31.93 1486.19 1024.685 25.95 25.90 9.907 3.50019 5.01355 31.93 1486.18 1024.688 26.25 26.19 9.905 3.50010 5.01371 31.93 1486.18 1024.691 26.55 26.49 9.906 3.50037 5.01399 31.93 1486.19 1024.693 26.85 26.79 9.895 3.49997 5.01499 31.94 1486.17 1024.701 27.15 27.09 9.895 3.50026 5.01537 31.94 1486.17 1024.704 27.45 27.39 9.890 3.50069 5.01679 31.95 1486.17 1024.714 27.75 27.69 9.890 3.50030 5.01623 31.94 1486.17 1024.712 28.05 27.98 9.885 3.50062 5.01742 31.95 1486.17 1024.720 28.35 28.28 9.881 3.49983 5.01677 31.95 1486.15 1024.718 28.65 28.58 9.883 3.50061 5.01764 31.95 1486.17 1024.724 28.95 28.88 9.877 3.50039 5.01821 31.96 1486.16 1024.728 29.25 29.18 9.875 3.50083 5.01912 31.96 1486.16 1024.735 29.55 29.48 9.881 3.50068 5.01807 31.96 1486.18 1024.730 29.85 29.78 9.877 3.50160 5.01990 31.97 1486.19 1024.742 30.15 30.07 9.861 3.50043 5.02058 31.97 1486.14 1024.748 30.45 30.37 9.859 3.50059 5.02113 31.97 1486.14 1024.752 30.75 30.67 9.862 3.50087 5.02110 31.97 1486.15 1024.753 31.05 30.97 9.852 3.50085 5.02244 31.98 1486.13 1024.762 31.35 31.27 9.850 3.50055 5.02227 31.98 1486.13 1024.763 31.65 31.57 9.851 3.50045 5.02205 31.98 1486.13 1024.763 31.95 31.86 9.853 3.50058 5.02191 31.98 1486.15 1024.763 32.25 32.16 9.843 3.50127 5.02434 31.99 1486.13 1024.778 32.55 32.46 9.846 3.50067 5.02306 31.99 1486.14 1024.772 32.85 32.76 9.846 3.50084 5.02323 31.99 1486.15 1024.774 33.15 33.06 9.848 3.50202 5.02474 32.00 1486.17 1024.784 33.45 33.36 9.855 3.50045 5.02138 31.97 1486.17 1024.766 33.75 33.65 9.848 3.50075 5.02288 31.98 1486.16 1024.776 34.05 33.95 9.848 3.50160 5.02406 31.99 1486.18 1024.784 34.35 34.25 9.845 3.50112 5.02383 31.99 1486.17 1024.784 34.65 34.55 9.844 3.50176 5.02486 32.00 1486.18 1024.791 34.95 34.85 9.848 3.50126 5.02355 31.99 1486.19 1024.785 35.25 35.15 9.849 3.50117 5.02330 31.99 1486.20 1024.785 35.55 35.45 9.844 3.50102 5.02382 31.99 1486.19 1024.789 35.85 35.74 9.840 3.50159 5.02523 32.00 1486.19 1024.798 36.15 36.04 9.837 3.50209 5.02635 32.01 1486.19 1024.806 36.45 36.34 9.837 3.50159 5.02568 32.00 1486.19 1024.804 36.75 36.64 9.838 3.50168 5.02566 32.00 1486.20 1024.805 37.08 36.96 9.825 3.50204 5.02806 32.02 1486.17 1024.820