*2026/01/16 10:37:45.37 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/01/23 17:42:07.000 END TIME : UTC 2025/01/23 17:42:26.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 98 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 29.35 2 Depth metres 0.15 29.22 3 Temperature 'deg C (ITS90)' 8.952 10.207 4 Conductivity S/m 3.28524 3.50604 5 Conductance:Specific S/m 4.82229 4.99166 6 Salinity PSS-78 30.48 31.79 7 Speed:Sound m/s 1480.83 1487.07 8 Density kg/m^3 1023.573 1024.564 $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 : 27 LATITUDE : 48 51.17240 N ! (deg min) LONGITUDE : 125 11.78290 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250123_174207 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:23 98 98 MERGEHDR 1.3 2026/01/16 10:35:38 98 98 HDREDIT2 3.2 2026/01/16 10:36:08 ? ? REMOVECH 8.2 2026/01/16 10:36:37 98 98 CALIB 12.1 2026/01/16 10:37:10 98 98 CLEAN 5.3 2026/01/16 10:37:45 98 98 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:08 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 10:36:37 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:10 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 9.072 3.28609 4.82229 30.48 1480.93 1023.573 0.45 0.45 9.044 3.28524 4.82499 30.50 1480.85 1023.591 0.75 0.75 9.067 3.28589 4.82267 30.48 1480.92 1023.578 1.05 1.05 9.070 3.28684 4.82363 30.49 1480.94 1023.584 1.35 1.34 9.071 3.28752 4.82450 30.50 1480.96 1023.590 1.65 1.64 9.069 3.28788 4.82525 30.50 1480.97 1023.596 1.95 1.94 9.067 3.28853 4.82653 30.51 1480.97 1023.604 2.25 2.24 9.057 3.28742 4.82629 30.51 1480.94 1023.605 2.55 2.54 9.068 3.29036 4.82911 30.53 1481.01 1023.621 2.85 2.84 9.073 3.29002 4.82792 30.52 1481.02 1023.615 3.15 3.14 9.078 3.29063 4.82813 30.52 1481.05 1023.618 3.45 3.44 9.080 3.29079 4.82809 30.52 1481.06 1023.619 3.75 3.73 9.080 3.29071 4.82786 30.52 1481.06 1023.619 4.05 4.03 9.080 3.29112 4.82851 30.53 1481.07 1023.623 4.35 4.33 9.078 3.29052 4.82794 30.52 1481.06 1023.622 4.65 4.63 9.071 3.29066 4.82908 30.53 1481.05 1023.630 4.95 4.93 9.067 3.29150 4.83097 30.54 1481.06 1023.641 5.25 5.23 9.067 3.29204 4.83167 30.55 1481.07 1023.646 5.55 5.53 9.066 3.29213 4.83200 30.55 1481.07 1023.650 5.85 5.83 9.049 3.29147 4.83340 30.55 1481.02 1023.659 6.15 6.12 9.035 3.29175 4.83578 30.57 1480.99 1023.674 6.45 6.42 9.030 3.29155 4.83623 30.57 1480.98 1023.678 6.75 6.72 9.019 3.29086 4.83675 30.57 1480.95 1023.683 7.05 7.02 9.009 3.29016 4.83713 30.58 1480.92 1023.687 7.35 7.32 8.992 3.28927 4.83827 30.58 1480.87 1023.695 7.65 7.62 8.977 3.28915 4.84029 30.59 1480.83 1023.708 7.95 7.92 8.976 3.28964 4.84112 30.60 1480.84 1023.714 8.25 8.22 8.981 3.29144 4.84308 30.61 1480.88 1023.725 8.55 8.51 8.974 3.29288 4.84619 30.63 1480.88 1023.744 8.85 8.81 8.969 3.29120 4.84438 30.62 1480.85 1023.736 9.15 9.11 8.964 3.29111 4.84500 30.62 1480.84 1023.740 9.45 9.41 8.952 3.29496 4.85243 30.67 1480.86 1023.783 9.75 9.71 8.953 3.29864 4.85766 30.71 1480.92 1023.813 10.05 10.01 8.961 3.29889 4.85687 30.71 1480.95 1023.809 10.35 10.31 8.970 3.30015 4.85748 30.71 1480.99 1023.814 10.65 10.61 8.982 3.30094 4.85695 30.71 1481.04 1023.812 10.95 10.90 8.992 3.30233 4.85756 30.71 1481.09 1023.816 11.25 11.20 9.000 3.30405 4.85886 30.72 1481.14 1023.824 11.55 11.50 9.014 3.30511 4.85848 30.72 1481.19 1023.822 11.85 11.80 9.035 3.30807 4.85984 30.74 1481.29 1023.830 12.15 12.10 9.070 3.31155 4.85992 30.74 1481.43 1023.830 12.45 12.40 9.097 3.32143 4.87055 30.82 1481.63 1023.888 12.75 12.70 9.127 3.32669 4.87402 30.85 1481.78 1023.907 13.05 13.00 9.160 3.33174 4.87661 30.87 1481.94 1023.921 13.35 13.29 9.193 3.33522 4.87698 30.88 1482.08 1023.923 13.65 13.59 9.222 3.33790 4.87680 30.88 1482.19 1023.922 13.95 13.89 9.244 3.34046 4.87738 30.89 1482.29 1023.925 14.25 14.19 9.271 3.34376 4.87843 30.90 1482.40 1023.931 14.55 14.49 9.312 3.35102 4.88320 30.94 1482.61 1023.956 14.85 14.79 9.355 3.36187 4.89283 31.01 1482.86 1024.008 15.15 15.09 9.404 3.37018 4.89792 31.05 1483.10 1024.035 15.45 15.38 9.449 3.37592 4.89981 31.07 1483.29 1024.044 15.75 15.68 9.471 3.37751 4.89901 31.07 1483.38 1024.040 16.05 15.98 9.495 3.37842 4.89698 31.06 1483.45 1024.029 16.35 16.28 9.522 3.38188 4.89818 31.07 1483.57 1024.035 16.65 16.58 9.552 3.38636 4.90041 31.09 1483.71 1024.047 16.95 16.88 9.580 3.39294 4.90590 31.13 1483.87 1024.077 17.25 17.18 9.608 3.39707 4.90798 31.15 1484.00 1024.088 17.55 17.48 9.633 3.40168 4.91099 31.17 1484.13 1024.104 17.85 17.77 9.655 3.40420 4.91153 31.18 1484.22 1024.107 18.15 18.07 9.676 3.40737 4.91313 31.19 1484.32 1024.116 18.45 18.37 9.697 3.40838 4.91165 31.19 1484.39 1024.108 18.75 18.67 9.712 3.41038 4.91233 31.19 1484.46 1024.112 19.05 18.97 9.724 3.41346 4.91506 31.21 1484.53 1024.128 19.35 19.27 9.735 3.41532 4.91621 31.22 1484.59 1024.135 19.65 19.57 9.752 3.41701 4.91627 31.22 1484.66 1024.135 19.95 19.86 9.767 3.42025 4.91875 31.24 1484.74 1024.149 20.25 20.16 9.791 3.42220 4.91825 31.24 1484.83 1024.146 20.55 20.46 9.818 3.43030 4.92598 31.30 1485.01 1024.189 20.85 20.76 9.827 3.43398 4.93005 31.33 1485.08 1024.212 21.15 21.06 9.834 3.43816 4.93506 31.37 1485.16 1024.240 21.45 21.36 9.842 3.44196 4.93932 31.40 1485.23 1024.264 21.75 21.66 9.864 3.44516 4.94079 31.41 1485.33 1024.272 22.05 21.95 9.882 3.44618 4.93982 31.41 1485.39 1024.267 22.35 22.25 9.889 3.44663 4.93946 31.40 1485.42 1024.266 22.65 22.55 9.896 3.44741 4.93949 31.41 1485.45 1024.267 22.95 22.85 9.903 3.44763 4.93886 31.40 1485.48 1024.264 23.25 23.15 9.910 3.44878 4.93955 31.41 1485.52 1024.269 23.55 23.45 9.917 3.45053 4.94101 31.42 1485.56 1024.278 23.85 23.75 9.927 3.45342 4.94376 31.44 1485.63 1024.294 24.15 24.04 9.942 3.45693 4.94667 31.46 1485.71 1024.310 24.45 24.34 9.955 3.45809 4.94649 31.46 1485.77 1024.309 24.75 24.64 9.962 3.45866 4.94637 31.46 1485.79 1024.310 25.05 24.94 9.968 3.46175 4.94989 31.49 1485.85 1024.330 25.35 25.24 9.982 3.46300 4.94972 31.49 1485.91 1024.329 25.65 25.54 9.996 3.46470 4.95019 31.49 1485.97 1024.332 25.95 25.84 10.005 3.46572 4.95028 31.49 1486.01 1024.333 26.25 26.13 10.011 3.46718 4.95152 31.50 1486.05 1024.341 26.55 26.43 10.010 3.46704 4.95156 31.50 1486.05 1024.343 26.85 26.73 10.009 3.47118 4.95758 31.55 1486.10 1024.377 27.15 27.03 10.022 3.47873 4.96647 31.61 1486.23 1024.426 27.45 27.33 10.058 3.49994 4.99166 31.79 1486.59 1024.564 27.75 27.63 10.132 3.50519 4.98856 31.78 1486.85 1024.543 28.05 27.93 10.179 3.50495 4.98163 31.74 1486.97 1024.503 28.35 28.22 10.195 3.50536 4.97992 31.73 1487.02 1024.494 28.65 28.52 10.199 3.50543 4.97940 31.72 1487.04 1024.492 28.95 28.82 10.192 3.50561 4.98063 31.73 1487.03 1024.501 29.35 29.22 10.207 3.50604 4.97924 31.72 1487.07 1024.494