*2026/01/16 10:37:59.38 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/07/23 18:18:01.000 END TIME : UTC 2025/07/23 18:18:29.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 143 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 42.8 2 Depth metres 0.15 42.59 3 Temperature 'deg C (ITS90)' 8.702 16.907 4 Conductivity S/m 3.46431 3.92627 5 Conductance:Specific S/m 4.6243 5.15146 6 Salinity PSS-78 29.75 32.73 7 Speed:Sound m/s 1482.89 1507.06 8 Density kg/m^3 1021.587 1025.577 $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 : 2025-087 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 241 LATITUDE : 49 38.47650 N ! (deg min) LONGITUDE : 126 28.85730 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250723_181801 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:35 143 143 MERGEHDR 1.3 2026/01/16 10:35:49 143 143 HDREDIT2 3.2 2026/01/16 10:36:20 ? ? REMOVECH 8.2 2026/01/16 10:36:52 143 143 CALIB 12.1 2026/01/16 10:37:23 143 143 CLEAN 5.3 2026/01/16 10:37:59 143 143 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:20 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 10:36:52 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:23 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 10:37:42 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 16.907 3.92627 4.68450 30.20 1507.06 1021.858 0.45 0.45 16.597 3.84717 4.62430 29.75 1505.60 1021.587 0.75 0.75 16.292 3.90739 4.73147 30.51 1505.53 1022.233 1.05 1.05 16.080 3.90818 4.75679 30.67 1505.07 1022.411 1.35 1.35 15.851 3.91985 4.79771 30.95 1504.68 1022.678 1.65 1.65 15.697 3.91960 4.81560 31.07 1504.34 1022.804 1.95 1.94 15.652 3.91983 4.82120 31.11 1504.25 1022.844 2.25 2.24 15.459 3.91901 4.84317 31.26 1503.81 1022.999 2.55 2.54 15.265 3.91301 4.85910 31.36 1503.32 1023.120 2.85 2.84 15.048 3.90487 4.87525 31.46 1502.75 1023.246 3.15 3.14 14.918 3.89796 4.88252 31.50 1502.39 1023.308 3.45 3.44 14.779 3.89563 4.89661 31.59 1502.06 1023.409 3.75 3.74 14.577 3.89190 4.91693 31.72 1501.56 1023.554 4.05 4.04 14.417 3.88073 4.92264 31.75 1501.09 1023.610 4.35 4.33 14.298 3.88178 4.93895 31.86 1500.83 1023.720 4.65 4.63 14.195 3.87302 4.94074 31.86 1500.51 1023.746 4.95 4.93 14.146 3.86924 4.94204 31.87 1500.36 1023.761 5.25 5.23 14.109 3.86897 4.94640 31.90 1500.28 1023.792 5.55 5.53 14.042 3.86826 4.95399 31.95 1500.12 1023.845 5.85 5.83 13.988 3.85959 4.94978 31.91 1499.90 1023.831 6.15 6.13 13.922 3.85446 4.95149 31.92 1499.70 1023.851 6.45 6.43 13.834 3.85114 4.95844 31.96 1499.47 1023.903 6.75 6.72 13.761 3.84746 4.96311 31.99 1499.26 1023.940 7.05 7.02 13.708 3.84568 4.96752 32.01 1499.13 1023.973 7.35 7.32 13.654 3.84162 4.96921 32.02 1498.96 1023.991 7.65 7.62 13.618 3.83945 4.97106 32.03 1498.86 1024.007 7.95 7.92 13.590 3.83549 4.96957 32.02 1498.76 1024.004 8.25 8.22 13.573 3.83460 4.97054 32.02 1498.71 1024.013 8.55 8.52 13.558 3.83190 4.96902 32.01 1498.65 1024.008 8.85 8.81 13.541 3.83078 4.96969 32.02 1498.61 1024.015 9.15 9.11 13.517 3.83045 4.97248 32.03 1498.55 1024.035 9.45 9.41 13.478 3.82940 4.97603 32.05 1498.46 1024.061 9.75 9.71 13.436 3.82824 4.97998 32.08 1498.35 1024.089 10.05 10.01 13.412 3.82451 4.97825 32.06 1498.26 1024.084 10.35 10.31 13.401 3.82335 4.97820 32.06 1498.22 1024.087 10.65 10.61 13.387 3.82162 4.97775 32.06 1498.18 1024.087 10.95 10.91 13.367 3.82138 4.97998 32.07 1498.13 1024.104 11.25 11.20 13.344 3.82025 4.98154 32.08 1498.07 1024.116 11.55 11.50 13.311 3.81804 4.98289 32.09 1497.98 1024.129 11.85 11.80 13.284 3.81557 4.98324 32.09 1497.89 1024.136 12.15 12.10 13.272 3.81440 4.98332 32.09 1497.85 1024.139 12.45 12.40 13.263 3.81493 4.98515 32.10 1497.84 1024.152 12.75 12.70 13.253 3.81448 4.98581 32.10 1497.82 1024.158 13.05 13.00 13.241 3.81374 4.98650 32.11 1497.79 1024.165 13.35 13.29 13.225 3.81122 4.98519 32.10 1497.73 1024.161 13.65 13.59 13.206 3.80796 4.98340 32.08 1497.65 1024.154 13.95 13.89 13.181 3.80544 4.98343 32.08 1497.57 1024.159 14.25 14.19 13.152 3.80446 4.98593 32.09 1497.50 1024.178 14.55 14.49 13.117 3.80146 4.98653 32.10 1497.39 1024.187 14.85 14.79 13.086 3.79864 4.98695 32.10 1497.29 1024.194 15.15 15.09 13.053 3.79577 4.98749 32.10 1497.18 1024.203 15.45 15.38 13.010 3.79311 4.98956 32.11 1497.06 1024.221 15.75 15.68 12.961 3.78722 4.98827 32.09 1496.88 1024.221 16.05 15.98 12.874 3.77732 4.98668 32.07 1496.57 1024.224 16.35 16.28 12.725 3.76441 4.98926 32.08 1496.08 1024.257 16.65 16.58 12.616 3.74810 4.98209 32.02 1495.64 1024.232 16.95 16.88 12.507 3.74392 4.99092 32.07 1495.34 1024.295 17.25 17.18 12.420 3.74077 4.99831 32.11 1495.10 1024.347 17.55 17.47 12.371 3.73711 4.99999 32.12 1494.94 1024.363 17.85 17.77 12.330 3.73583 5.00383 32.14 1494.84 1024.390 18.15 18.07 12.303 3.73400 5.00493 32.15 1494.76 1024.400 18.45 18.37 12.286 3.73394 5.00710 32.16 1494.72 1024.415 18.75 18.67 12.270 3.73292 5.00799 32.17 1494.67 1024.423 19.05 18.97 12.257 3.73206 5.00850 32.17 1494.64 1024.429 19.35 19.27 12.251 3.73232 5.00971 32.18 1494.63 1024.437 19.65 19.56 12.244 3.73211 5.01036 32.18 1494.62 1024.443 19.95 19.86 12.236 3.73169 5.01085 32.18 1494.60 1024.448 20.25 20.16 12.233 3.73193 5.01160 32.19 1494.60 1024.453 20.55 20.46 12.227 3.73242 5.01301 32.20 1494.59 1024.463 20.85 20.76 12.222 3.73149 5.01244 32.19 1494.58 1024.462 21.15 21.06 12.214 3.73108 5.01304 32.20 1494.56 1024.467 21.45 21.35 12.200 3.73039 5.01398 32.20 1494.52 1024.475 21.75 21.65 12.176 3.72889 5.01523 32.21 1494.45 1024.486 22.05 21.95 12.137 3.72556 5.01595 32.21 1494.32 1024.495 22.35 22.25 12.057 3.71938 5.01841 32.22 1494.07 1024.519 22.65 22.55 11.908 3.70756 5.02266 32.23 1493.58 1024.559 22.95 22.85 11.767 3.68845 5.01591 32.17 1493.02 1024.537 23.25 23.15 11.718 3.66744 4.99412 32.01 1492.66 1024.423 23.55 23.44 11.576 3.65770 5.00019 32.03 1492.20 1024.472 23.85 23.74 11.400 3.64851 5.01167 32.10 1491.67 1024.553 24.15 24.04 11.234 3.64057 5.02370 32.16 1491.17 1024.636 24.45 24.34 11.102 3.62864 5.02557 32.16 1490.71 1024.659 24.75 24.64 11.006 3.62428 5.03287 32.20 1490.43 1024.709 25.05 24.94 10.930 3.62048 5.03825 32.23 1490.20 1024.747 25.35 25.23 10.869 3.61588 5.04045 32.24 1490.00 1024.765 25.65 25.53 10.799 3.61007 5.04221 32.24 1489.76 1024.782 25.95 25.83 10.719 3.60396 5.04492 32.25 1489.49 1024.804 26.25 26.13 10.632 3.59903 5.05021 32.28 1489.22 1024.842 26.55 26.43 10.566 3.59311 5.05130 32.28 1488.99 1024.854 26.85 26.73 10.503 3.58922 5.05476 32.30 1488.79 1024.879 27.15 27.03 10.462 3.58586 5.05594 32.30 1488.65 1024.890 27.45 27.32 10.434 3.58388 5.05718 32.30 1488.56 1024.900 27.75 27.62 10.409 3.58166 5.05756 32.30 1488.48 1024.905 28.05 27.92 10.382 3.58111 5.06062 32.32 1488.41 1024.925 28.35 28.22 10.357 3.57952 5.06196 32.33 1488.33 1024.936 28.65 28.52 10.336 3.57807 5.06298 32.33 1488.27 1024.944 28.95 28.82 10.312 3.57576 5.06308 32.33 1488.18 1024.948 29.25 29.11 10.287 3.57415 5.06443 32.34 1488.10 1024.958 29.55 29.41 10.258 3.57169 5.06515 32.34 1488.01 1024.965 29.85 29.71 10.227 3.56873 5.06527 32.33 1487.90 1024.969 30.15 30.01 10.196 3.56654 5.06664 32.34 1487.80 1024.980 30.45 30.31 10.156 3.56422 5.06916 32.35 1487.67 1024.998 30.75 30.61 10.107 3.55969 5.06978 32.35 1487.50 1025.006 31.05 30.90 10.074 3.55611 5.06942 32.34 1487.38 1025.008 31.35 31.20 10.048 3.55356 5.06952 32.34 1487.29 1025.011 31.65 31.50 10.011 3.55170 5.07233 32.36 1487.17 1025.030 31.95 31.80 9.975 3.54892 5.07354 32.36 1487.05 1025.041 32.25 32.10 9.929 3.54658 5.07685 32.38 1486.91 1025.063 32.55 32.40 9.858 3.54181 5.08028 32.39 1486.68 1025.088 32.85 32.69 9.789 3.53430 5.07964 32.38 1486.41 1025.089 33.15 32.99 9.712 3.52773 5.08147 32.38 1486.14 1025.105 33.45 33.29 9.606 3.51871 5.08397 32.38 1485.76 1025.126 33.75 33.59 9.503 3.50654 5.08145 32.35 1485.35 1025.119 34.05 33.89 9.413 3.50187 5.08805 32.38 1485.07 1025.161 34.35 34.19 9.350 3.49960 5.09403 32.42 1484.88 1025.199 34.65 34.48 9.313 3.49898 5.09862 32.45 1484.79 1025.227 34.95 34.78 9.276 3.49734 5.10177 32.46 1484.67 1025.248 35.25 35.08 9.254 3.49585 5.10280 32.47 1484.61 1025.255 35.55 35.38 9.231 3.49466 5.10454 32.47 1484.54 1025.267 35.85 35.68 9.211 3.49332 5.10559 32.48 1484.47 1025.275 36.15 35.97 9.192 3.49202 5.10653 32.48 1484.41 1025.283 36.45 36.27 9.169 3.49049 5.10770 32.49 1484.34 1025.292 36.75 36.57 9.156 3.48982 5.10867 32.49 1484.30 1025.299 37.05 36.87 9.138 3.48888 5.10999 32.50 1484.25 1025.308 37.35 37.17 9.117 3.48781 5.11149 32.51 1484.18 1025.318 37.65 37.47 9.096 3.48674 5.11312 32.51 1484.12 1025.330 37.95 37.76 9.074 3.48541 5.11443 32.52 1484.05 1025.339 38.25 38.06 9.066 3.48401 5.11368 32.51 1484.02 1025.337 38.55 38.36 9.067 3.48263 5.11147 32.50 1484.01 1025.326 38.85 38.66 9.061 3.48051 5.10922 32.48 1483.97 1025.315 39.15 38.96 9.016 3.47574 5.10891 32.47 1483.80 1025.316 39.45 39.26 8.964 3.47419 5.11445 32.50 1483.65 1025.350 39.75 39.55 8.927 3.47372 5.11944 32.53 1483.55 1025.380 40.05 39.85 8.892 3.47035 5.11976 32.53 1483.42 1025.385 40.35 40.15 8.851 3.46776 5.12208 32.54 1483.29 1025.400 40.65 40.45 8.800 3.46554 5.12654 32.56 1483.13 1025.428 40.95 40.75 8.771 3.46499 5.13018 32.59 1483.05 1025.450 41.25 41.05 8.750 3.46457 5.13275 32.60 1483.00 1025.467 41.55 41.34 8.729 3.46464 5.13607 32.62 1482.95 1025.487 41.85 41.64 8.714 3.46441 5.13790 32.63 1482.91 1025.499 42.15 41.94 8.707 3.46431 5.13884 32.64 1482.90 1025.505 42.45 42.24 8.702 3.46439 5.13969 32.64 1482.89 1025.512 42.80 42.59 8.746 3.47682 5.15146 32.73 1483.17 1025.577