*2026/01/16 10:37:53.72 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/05/08 19:23:28.000 END TIME : UTC 2025/05/08 19:23:51.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 117 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 34.89 2 Depth metres 0.15 34.73 3 Temperature 'deg C (ITS90)' 8.975 13.036 4 Conductivity S/m 3.39374 3.47053 5 Conductance:Specific S/m 4.47091 5.03442 6 Salinity PSS-78 28.42 31.94 7 Speed:Sound m/s 1482.8 1492.57 8 Density kg/m^3 1021.316 1024.889 $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 : 138 LATITUDE : 48 58.01880 N ! (deg min) LONGITUDE : 125 19.57380 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250508_192328 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:29 117 117 MERGEHDR 1.3 2026/01/16 10:35:44 117 117 HDREDIT2 3.2 2026/01/16 10:36:15 ? ? REMOVECH 8.2 2026/01/16 10:36:40 117 117 CALIB 12.1 2026/01/16 10:37:17 117 117 CLEAN 5.3 2026/01/16 10:37:53 117 117 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:15 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 10:36:40 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:17 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 12.738 3.41725 4.52764 28.81 1491.98 1021.651 0.45 0.45 12.860 3.39900 4.48889 28.54 1492.09 1021.426 0.75 0.75 12.954 3.39374 4.47091 28.42 1492.27 1021.317 1.05 1.05 13.036 3.40212 4.47227 28.44 1492.57 1021.316 1.35 1.35 12.985 3.41019 4.48880 28.55 1492.54 1021.413 1.65 1.65 12.953 3.41187 4.49484 28.59 1492.48 1021.451 1.95 1.95 12.839 3.41417 4.51149 28.70 1492.22 1021.558 2.25 2.25 12.434 3.46214 4.62436 29.46 1491.75 1022.224 2.55 2.54 12.126 3.47053 4.67395 29.78 1491.08 1022.531 2.85 2.84 11.830 3.46017 4.69744 29.92 1490.22 1022.692 3.15 3.14 11.569 3.45373 4.72215 30.07 1489.49 1022.855 3.45 3.44 11.325 3.45228 4.75198 30.26 1488.86 1023.044 3.75 3.74 11.108 3.44990 4.77717 30.41 1488.29 1023.203 4.05 4.04 10.968 3.44706 4.79186 30.50 1487.90 1023.297 4.35 4.34 10.888 3.44230 4.79594 30.52 1487.65 1023.328 4.65 4.64 10.774 3.43606 4.80249 30.55 1487.28 1023.374 4.95 4.94 10.543 3.42961 4.82456 30.68 1486.62 1023.515 5.25 5.23 10.397 3.42600 4.83943 30.77 1486.21 1023.609 5.55 5.53 10.273 3.42274 4.85181 30.84 1485.85 1023.687 5.85 5.83 10.197 3.41417 4.85008 30.82 1485.56 1023.685 6.15 6.13 10.125 3.41087 4.85527 30.85 1485.34 1023.719 6.45 6.43 10.049 3.40835 4.86229 30.89 1485.11 1023.764 6.75 6.73 9.976 3.40472 4.86728 30.91 1484.88 1023.798 7.05 7.03 9.866 3.40124 4.87758 30.97 1484.56 1023.863 7.35 7.33 9.778 3.40032 4.88866 31.04 1484.32 1023.930 7.65 7.62 9.736 3.40053 4.89479 31.08 1484.22 1023.968 7.95 7.92 9.706 3.40127 4.90007 31.11 1484.16 1024.000 8.25 8.22 9.672 3.40090 4.90435 31.14 1484.07 1024.026 8.55 8.52 9.633 3.40082 4.90976 31.17 1483.97 1024.060 8.85 8.82 9.620 3.40082 4.91161 31.18 1483.94 1024.072 9.15 9.12 9.612 3.40085 4.91285 31.19 1483.93 1024.080 9.45 9.42 9.586 3.39917 4.91409 31.19 1483.84 1024.090 9.75 9.71 9.553 3.39888 4.91836 31.22 1483.76 1024.116 10.05 10.01 9.529 3.39857 4.92137 31.24 1483.70 1024.136 10.35 10.31 9.489 3.39839 4.92678 31.27 1483.60 1024.169 10.65 10.61 9.459 3.39811 4.93064 31.29 1483.52 1024.193 10.95 10.91 9.430 3.39793 4.93452 31.31 1483.45 1024.217 11.25 11.21 9.401 3.39853 4.93960 31.35 1483.38 1024.248 11.55 11.51 9.371 3.39885 4.94436 31.38 1483.31 1024.277 11.85 11.80 9.343 3.39851 4.94784 31.40 1483.24 1024.298 12.15 12.10 9.321 3.39911 4.95188 31.42 1483.20 1024.323 12.45 12.40 9.307 3.40033 4.95576 31.45 1483.18 1024.346 12.75 12.70 9.287 3.40076 4.95922 31.47 1483.14 1024.368 13.05 13.00 9.274 3.40055 4.96078 31.48 1483.10 1024.378 13.35 13.30 9.278 3.39972 4.95899 31.46 1483.11 1024.369 13.65 13.60 9.283 3.39926 4.95769 31.46 1483.12 1024.363 13.95 13.89 9.268 3.40211 4.96400 31.50 1483.12 1024.400 14.25 14.19 9.262 3.40479 4.96875 31.53 1483.14 1024.428 14.55 14.49 9.249 3.40466 4.97041 31.54 1483.11 1024.439 14.85 14.79 9.234 3.40565 4.97409 31.56 1483.09 1024.461 15.15 15.09 9.226 3.40480 4.97392 31.56 1483.07 1024.462 15.45 15.39 9.209 3.40396 4.97524 31.57 1483.01 1024.471 15.75 15.69 9.198 3.40399 4.97683 31.58 1482.99 1024.481 16.05 15.98 9.192 3.40359 4.97721 31.58 1482.97 1024.485 16.35 16.28 9.188 3.40366 4.97786 31.58 1482.97 1024.490 16.65 16.58 9.181 3.40365 4.97880 31.59 1482.96 1024.497 16.95 16.88 9.177 3.40367 4.97943 31.59 1482.95 1024.502 17.25 17.18 9.170 3.40321 4.97977 31.59 1482.93 1024.505 17.55 17.48 9.163 3.40393 4.98188 31.61 1482.93 1024.518 17.85 17.78 9.151 3.40416 4.98397 31.62 1482.90 1024.532 18.15 18.07 9.146 3.40481 4.98569 31.63 1482.90 1024.543 18.45 18.37 9.143 3.40560 4.98722 31.64 1482.91 1024.552 18.75 18.67 9.135 3.40610 4.98910 31.65 1482.90 1024.565 19.05 18.97 9.127 3.40642 4.99084 31.67 1482.89 1024.576 19.35 19.27 9.119 3.40692 4.99273 31.68 1482.88 1024.588 19.65 19.57 9.114 3.40722 4.99386 31.68 1482.87 1024.595 19.95 19.86 9.109 3.40716 4.99449 31.69 1482.87 1024.600 20.25 20.16 9.106 3.40715 4.99500 31.69 1482.86 1024.605 20.55 20.46 9.106 3.40741 4.99535 31.69 1482.87 1024.608 20.85 20.76 9.098 3.40765 4.99682 31.70 1482.86 1024.618 21.15 21.06 9.096 3.40756 4.99700 31.70 1482.86 1024.620 21.45 21.36 9.095 3.40699 4.99636 31.70 1482.85 1024.618 21.75 21.66 9.094 3.40879 4.99909 31.72 1482.88 1024.634 22.05 21.95 9.097 3.40914 4.99917 31.72 1482.89 1024.636 22.35 22.25 9.085 3.40914 5.00090 31.73 1482.87 1024.647 22.65 22.55 9.075 3.40905 5.00234 31.74 1482.84 1024.656 22.95 22.85 9.066 3.40887 5.00337 31.74 1482.82 1024.664 23.25 23.15 9.060 3.40934 5.00487 31.75 1482.82 1024.674 23.55 23.45 9.052 3.40911 5.00580 31.76 1482.80 1024.680 23.85 23.74 9.051 3.41005 5.00727 31.77 1482.81 1024.690 24.15 24.04 9.047 3.40962 5.00716 31.77 1482.80 1024.691 24.45 24.34 9.044 3.41001 5.00821 31.77 1482.80 1024.698 24.75 24.64 9.042 3.41007 5.00856 31.78 1482.80 1024.701 25.05 24.94 9.041 3.41101 5.01022 31.79 1482.82 1024.712 25.35 25.24 9.037 3.41157 5.01158 31.80 1482.82 1024.720 25.65 25.54 9.031 3.41085 5.01144 31.79 1482.80 1024.721 25.95 25.83 9.032 3.41181 5.01269 31.80 1482.82 1024.729 26.25 26.13 9.033 3.41184 5.01255 31.80 1482.83 1024.730 26.55 26.43 9.034 3.41189 5.01242 31.80 1482.83 1024.730 26.85 26.73 9.033 3.41321 5.01457 31.82 1482.85 1024.743 27.15 27.03 9.035 3.41277 5.01364 31.81 1482.86 1024.740 27.45 27.33 9.032 3.41260 5.01389 31.81 1482.85 1024.742 27.75 27.62 9.030 3.41238 5.01371 31.81 1482.85 1024.743 28.05 27.92 9.030 3.41287 5.01449 31.81 1482.86 1024.748 28.35 28.22 9.031 3.41228 5.01345 31.81 1482.86 1024.744 28.65 28.52 9.028 3.41204 5.01364 31.81 1482.85 1024.746 28.95 28.82 9.023 3.41222 5.01452 31.81 1482.85 1024.752 29.25 29.12 9.024 3.41231 5.01461 31.81 1482.85 1024.754 29.55 29.41 9.024 3.41276 5.01526 31.82 1482.87 1024.759 29.85 29.71 9.023 3.41249 5.01500 31.82 1482.86 1024.759 30.15 30.01 9.021 3.41319 5.01628 31.82 1482.87 1024.767 30.45 30.31 9.019 3.41323 5.01667 31.83 1482.87 1024.771 30.75 30.61 9.018 3.41423 5.01823 31.84 1482.89 1024.781 31.05 30.91 9.016 3.41399 5.01820 31.84 1482.89 1024.782 31.35 31.21 9.016 3.41429 5.01866 31.84 1482.89 1024.786 31.65 31.50 9.021 3.41392 5.01734 31.83 1482.91 1024.779 31.95 31.80 9.025 3.41452 5.01773 31.83 1482.93 1024.783 32.25 32.10 9.023 3.41416 5.01750 31.83 1482.92 1024.783 32.55 32.40 9.018 3.41422 5.01833 31.84 1482.92 1024.789 32.85 32.70 9.014 3.41517 5.02026 31.85 1482.92 1024.801 33.15 33.00 9.013 3.41496 5.02010 31.85 1482.92 1024.801 33.45 33.29 9.008 3.41716 5.02406 31.88 1482.94 1024.825 33.75 33.59 9.002 3.41842 5.02686 31.89 1482.95 1024.841 34.05 33.89 8.999 3.41863 5.02752 31.90 1482.95 1024.846 34.35 34.19 8.995 3.41911 5.02885 31.91 1482.95 1024.855 34.65 34.49 8.975 3.41982 5.03285 31.93 1482.91 1024.879 34.89 34.73 8.976 3.42099 5.03442 31.94 1482.93 1024.889