*2026/01/16 09:57:53.04 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/07/10 19:56:02.000 END TIME : UTC 2024/07/10 19:56:25.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 116 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 34.57 2 Depth metres 0.15 34.4 3 Temperature 'deg C (ITS90)' 9.428 18.775 4 Conductivity S/m 3.48953 3.71328 5 Conductance:Specific S/m 3.98632 5.10965 6 Salinity PSS-78 25.32 32.54 7 Speed:Sound m/s 1485.32 1507.13 8 Density kg/m^3 1017.693 1025.281 $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 : 178 LATITUDE : 49 39.12460 N ! (deg min) LONGITUDE : 126 26.63480 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240710_195602 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:03 116 116 MERGEHDR 1.3 2026/01/16 09:53:57 116 116 HDREDIT2 3.2 2026/01/16 09:55:08 ? ? REMOVECH 8.2 2026/01/16 09:56:19 116 116 CALIB 12.1 2026/01/16 09:56:52 116 116 CLEAN 5.3 2026/01/16 09:57:53 116 116 $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 18.775 3.49001 3.98632 25.32 1507.13 1017.693 0.45 0.45 18.743 3.49051 3.98982 25.34 1507.07 1017.720 0.75 0.75 18.711 3.48953 3.99162 25.35 1506.99 1017.738 1.05 1.05 18.705 3.49260 3.99567 25.38 1507.01 1017.762 1.35 1.35 18.446 3.49744 4.02507 25.58 1506.47 1017.976 1.65 1.65 17.784 3.52685 4.12168 26.24 1505.24 1018.632 1.95 1.95 17.046 3.56947 4.24474 27.08 1503.95 1019.442 2.25 2.25 16.534 3.61720 4.35448 27.83 1503.23 1020.134 2.55 2.55 16.081 3.62961 4.41758 28.25 1502.31 1020.560 2.85 2.85 15.428 3.63973 4.50144 28.81 1500.90 1021.130 3.15 3.15 14.545 3.65317 4.61896 29.59 1498.97 1021.915 3.45 3.45 13.891 3.66144 4.70726 30.17 1497.51 1022.496 3.75 3.75 13.529 3.67338 4.76700 30.57 1496.78 1022.876 4.05 4.05 13.270 3.67549 4.80210 30.80 1496.19 1023.104 4.35 4.35 13.061 3.68052 4.83507 31.01 1495.75 1023.314 4.65 4.65 12.909 3.67894 4.85233 31.12 1495.37 1023.429 4.95 4.94 12.883 3.69584 4.87795 31.30 1495.50 1023.575 5.25 5.24 12.847 3.70677 4.89702 31.43 1495.54 1023.686 5.55 5.54 12.713 3.71328 4.92310 31.61 1495.30 1023.848 5.85 5.84 12.603 3.71175 4.93546 31.69 1495.02 1023.930 6.15 6.14 12.515 3.70667 4.94019 31.71 1494.76 1023.968 6.45 6.44 12.402 3.70369 4.95118 31.78 1494.46 1024.042 6.75 6.74 12.241 3.69600 4.96232 31.84 1493.99 1024.123 7.05 7.04 12.085 3.69120 4.97663 31.93 1493.56 1024.220 7.35 7.33 11.998 3.68701 4.98270 31.96 1493.31 1024.265 7.65 7.63 11.930 3.67947 4.98166 31.95 1493.06 1024.267 7.95 7.93 11.806 3.66932 4.98471 31.96 1492.65 1024.298 8.25 8.23 11.684 3.65843 4.98647 31.96 1492.23 1024.321 8.55 8.53 11.534 3.64993 4.99528 32.00 1491.77 1024.386 8.85 8.83 11.449 3.64705 5.00293 32.05 1491.53 1024.437 9.15 9.12 11.397 3.64529 5.00774 32.07 1491.39 1024.470 9.45 9.42 11.365 3.64423 5.01060 32.09 1491.30 1024.490 9.75 9.72 11.299 3.63722 5.01003 32.08 1491.07 1024.494 10.05 10.02 11.225 3.63045 5.01097 32.08 1490.81 1024.507 10.35 10.32 11.161 3.62632 5.01420 32.09 1490.60 1024.532 10.65 10.62 11.124 3.62262 5.01414 32.09 1490.48 1024.536 10.95 10.92 11.082 3.62158 5.01851 32.12 1490.36 1024.565 11.25 11.21 11.048 3.62149 5.02314 32.14 1490.28 1024.595 11.55 11.51 11.020 3.62030 5.02543 32.16 1490.20 1024.612 11.85 11.81 10.963 3.61686 5.02862 32.17 1490.03 1024.635 12.15 12.11 10.903 3.60635 5.02234 32.12 1489.76 1024.607 12.45 12.41 10.857 3.60159 5.02221 32.11 1489.59 1024.611 12.75 12.71 10.787 3.59878 5.02808 32.15 1489.39 1024.650 13.05 13.00 10.717 3.59518 5.03281 32.17 1489.18 1024.683 13.35 13.30 10.683 3.59337 5.03516 32.19 1489.07 1024.700 13.65 13.60 10.638 3.58953 5.03614 32.19 1488.92 1024.711 13.95 13.90 10.569 3.58453 5.03888 32.20 1488.69 1024.732 14.25 14.20 10.493 3.57913 5.04208 32.21 1488.44 1024.757 14.55 14.50 10.452 3.57771 5.04580 32.23 1488.33 1024.782 14.85 14.80 10.406 3.57793 5.05268 32.27 1488.22 1024.824 15.15 15.09 10.385 3.57497 5.05152 32.26 1488.14 1024.821 15.45 15.39 10.337 3.57172 5.05385 32.27 1487.98 1024.838 15.75 15.69 10.306 3.56967 5.05534 32.28 1487.88 1024.850 16.05 15.99 10.272 3.56821 5.05814 32.30 1487.79 1024.869 16.35 16.29 10.248 3.56687 5.05971 32.30 1487.71 1024.881 16.65 16.59 10.240 3.56723 5.06135 32.31 1487.70 1024.891 16.95 16.88 10.234 3.56633 5.06098 32.31 1487.68 1024.891 17.25 17.18 10.230 3.56606 5.06107 32.31 1487.67 1024.893 17.55 17.48 10.222 3.56611 5.06240 32.32 1487.66 1024.902 17.85 17.78 10.224 3.56588 5.06177 32.31 1487.66 1024.900 18.15 18.08 10.230 3.56615 5.06130 32.31 1487.69 1024.898 18.45 18.38 10.237 3.56697 5.06133 32.31 1487.72 1024.899 18.75 18.67 10.213 3.56570 5.06308 32.32 1487.65 1024.912 19.05 18.97 10.194 3.56486 5.06460 32.33 1487.60 1024.923 19.35 19.27 10.154 3.56019 5.06374 32.32 1487.44 1024.922 19.65 19.57 10.109 3.55541 5.06338 32.31 1487.28 1024.924 19.95 19.87 10.049 3.55222 5.06756 32.33 1487.09 1024.952 20.25 20.17 10.005 3.54965 5.07013 32.34 1486.95 1024.971 20.55 20.46 9.982 3.54879 5.07224 32.36 1486.89 1024.985 20.85 20.76 9.965 3.54875 5.07467 32.37 1486.85 1025.001 21.15 21.06 9.933 3.54682 5.07658 32.38 1486.75 1025.015 21.45 21.36 9.898 3.54431 5.07816 32.39 1486.63 1025.027 21.75 21.66 9.880 3.54295 5.07870 32.39 1486.58 1025.032 22.05 21.96 9.857 3.54192 5.08067 32.40 1486.51 1025.046 22.35 22.25 9.839 3.54133 5.08235 32.41 1486.46 1025.057 22.65 22.55 9.831 3.54069 5.08266 32.41 1486.44 1025.061 22.95 22.85 9.825 3.54039 5.08305 32.41 1486.43 1025.064 23.25 23.15 9.813 3.53944 5.08348 32.41 1486.39 1025.069 23.55 23.45 9.801 3.53942 5.08518 32.42 1486.36 1025.080 23.85 23.75 9.799 3.54068 5.08733 32.44 1486.38 1025.093 24.15 24.04 9.796 3.53957 5.08616 32.43 1486.36 1025.088 24.45 24.34 9.785 3.53796 5.08543 32.42 1486.32 1025.086 24.75 24.64 9.777 3.53782 5.08648 32.43 1486.30 1025.094 25.05 24.94 9.773 3.53729 5.08632 32.43 1486.29 1025.094 25.35 25.24 9.759 3.53678 5.08764 32.43 1486.25 1025.104 25.65 25.54 9.745 3.53651 5.08927 32.44 1486.22 1025.115 25.95 25.83 9.730 3.53568 5.09026 32.45 1486.17 1025.122 26.25 26.13 9.702 3.53404 5.09196 32.46 1486.09 1025.135 26.55 26.43 9.656 3.53166 5.09523 32.47 1485.94 1025.157 26.85 26.73 9.625 3.52732 5.09353 32.46 1485.82 1025.150 27.15 27.03 9.597 3.52580 5.09554 32.47 1485.73 1025.164 27.45 27.33 9.564 3.52511 5.09940 32.49 1485.64 1025.188 27.75 27.62 9.556 3.52651 5.10267 32.51 1485.64 1025.208 28.05 27.92 9.547 3.52535 5.10229 32.51 1485.61 1025.208 28.35 28.22 9.531 3.52393 5.10261 32.51 1485.56 1025.212 28.65 28.52 9.528 3.52464 5.10401 32.52 1485.56 1025.221 28.95 28.82 9.527 3.52406 5.10329 32.51 1485.56 1025.218 29.25 29.12 9.518 3.52268 5.10262 32.50 1485.52 1025.216 29.55 29.41 9.506 3.52206 5.10354 32.51 1485.49 1025.223 29.85 29.71 9.497 3.52255 5.10554 32.52 1485.48 1025.236 30.15 30.01 9.498 3.52244 5.10533 32.52 1485.48 1025.236 30.45 30.31 9.499 3.52201 5.10456 32.52 1485.48 1025.233 30.75 30.61 9.494 3.52221 5.10555 32.52 1485.48 1025.240 31.05 30.91 9.490 3.52169 5.10539 32.52 1485.47 1025.241 31.35 31.20 9.486 3.52238 5.10692 32.53 1485.47 1025.250 31.65 31.50 9.487 3.52175 5.10596 32.52 1485.47 1025.246 31.95 31.80 9.482 3.52001 5.10412 32.51 1485.44 1025.238 32.25 32.10 9.469 3.51978 5.10578 32.52 1485.41 1025.249 32.55 32.40 9.460 3.52018 5.10769 32.53 1485.40 1025.261 32.85 32.70 9.465 3.52043 5.10718 32.53 1485.42 1025.259 33.15 32.99 9.463 3.52040 5.10752 32.53 1485.42 1025.263 33.45 33.29 9.460 3.52071 5.10835 32.54 1485.42 1025.269 33.75 33.59 9.460 3.51896 5.10593 32.52 1485.40 1025.256 34.05 33.89 9.448 3.51865 5.10721 32.53 1485.37 1025.265 34.35 34.19 9.428 3.51835 5.10965 32.54 1485.32 1025.281 34.57 34.40 9.432 3.51819 5.10886 32.53 1485.33 1025.277