*2026/01/16 10:37:45.04 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/01/23 00:06:22.000 END TIME : UTC 2025/01/23 00:06:45.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 119 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 35.42 2 Depth metres 0.15 35.27 3 Temperature 'deg C (ITS90)' 8.618 10.363 4 Conductivity S/m 3.12894 3.51863 5 Conductance:Specific S/m 4.61671 4.97651 6 Salinity PSS-78 29.02 31.72 7 Speed:Sound m/s 1477.81 1487.72 8 Density kg/m^3 1022.46 1024.493 $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 : 23 LATITUDE : 48 56.29480 N ! (deg min) LONGITUDE : 125 5.95560 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250123_000622 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:23 119 119 MERGEHDR 1.3 2026/01/16 10:35:38 119 119 HDREDIT2 3.2 2026/01/16 10:36:08 ? ? REMOVECH 8.2 2026/01/16 10:36:37 119 119 CALIB 12.1 2026/01/16 10:37:10 119 119 CLEAN 5.3 2026/01/16 10:37:45 119 119 $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 8.887 3.12894 4.61671 29.02 1478.45 1022.460 0.45 0.45 8.787 3.12939 4.63102 29.11 1478.18 1022.544 0.75 0.75 8.709 3.13003 4.64267 29.18 1477.98 1022.612 1.05 1.05 8.618 3.13619 4.66445 29.32 1477.81 1022.735 1.35 1.35 8.649 3.13358 4.65631 29.27 1477.87 1022.691 1.65 1.64 8.764 3.15087 4.66608 29.35 1478.41 1022.741 1.95 1.94 8.893 3.18423 4.69744 29.59 1479.19 1022.907 2.25 2.24 9.007 3.19722 4.70088 29.62 1479.67 1022.922 2.55 2.54 9.137 3.21141 4.70374 29.66 1480.20 1022.933 2.85 2.84 9.281 3.22987 4.71086 29.73 1480.83 1022.966 3.15 3.14 9.358 3.25012 4.72973 29.87 1481.29 1023.066 3.45 3.44 9.443 3.28361 4.76679 30.14 1481.94 1023.265 3.75 3.74 9.613 3.29331 4.75739 30.10 1482.51 1023.205 4.05 4.04 9.772 3.33480 4.79524 30.38 1483.45 1023.404 4.35 4.34 9.827 3.35274 4.81341 30.52 1483.82 1023.501 4.65 4.63 9.909 3.36105 4.81408 30.53 1484.14 1023.501 4.95 4.93 9.949 3.37231 4.82461 30.61 1484.39 1023.558 5.25 5.23 9.952 3.38404 4.84091 30.73 1484.55 1023.648 5.55 5.53 9.918 3.38357 4.84505 30.75 1484.45 1023.674 5.85 5.83 9.870 3.38258 4.85024 30.78 1484.32 1023.707 6.15 6.13 9.819 3.37897 4.85217 30.79 1484.15 1023.722 6.45 6.43 9.793 3.37560 4.85096 30.78 1484.05 1023.718 6.75 6.73 9.778 3.37531 4.85272 30.79 1484.01 1023.730 7.05 7.02 9.751 3.37546 4.85668 30.81 1483.94 1023.755 7.35 7.32 9.734 3.37479 4.85811 30.82 1483.89 1023.765 7.65 7.62 9.725 3.37451 4.85888 30.82 1483.87 1023.771 7.95 7.92 9.721 3.37547 4.86078 30.83 1483.88 1023.783 8.25 8.22 9.721 3.37606 4.86175 30.84 1483.89 1023.790 8.55 8.52 9.720 3.37660 4.86264 30.85 1483.90 1023.796 8.85 8.82 9.723 3.37726 4.86311 30.85 1483.92 1023.799 9.15 9.11 9.730 3.37793 4.86319 30.85 1483.95 1023.801 9.45 9.41 9.736 3.38002 4.86527 30.87 1484.00 1023.813 9.75 9.71 9.742 3.38239 4.86782 30.89 1484.05 1023.828 10.05 10.01 9.755 3.38296 4.86691 30.88 1484.09 1023.823 10.35 10.31 9.763 3.38423 4.86759 30.89 1484.14 1023.828 10.65 10.61 9.765 3.38616 4.87013 30.90 1484.17 1023.843 10.95 10.91 9.768 3.38740 4.87138 30.91 1484.20 1023.851 11.25 11.21 9.770 3.38636 4.86962 30.90 1484.19 1023.843 11.55 11.50 9.765 3.38725 4.87170 30.92 1484.20 1023.856 11.85 11.80 9.758 3.38632 4.87124 30.91 1484.17 1023.855 12.15 12.10 9.755 3.38636 4.87181 30.91 1484.17 1023.859 12.45 12.40 9.760 3.38742 4.87258 30.92 1484.20 1023.865 12.75 12.70 9.776 3.39160 4.87641 30.95 1484.30 1023.886 13.05 13.00 9.789 3.39442 4.87861 30.97 1484.37 1023.898 13.35 13.30 9.806 3.39818 4.88160 30.99 1484.47 1023.915 13.65 13.60 9.833 3.39991 4.88029 30.98 1484.56 1023.907 13.95 13.89 9.856 3.40549 4.88510 31.02 1484.70 1023.934 14.25 14.19 9.874 3.40914 4.88773 31.04 1484.79 1023.948 14.55 14.49 9.888 3.41123 4.88889 31.05 1484.86 1023.955 14.85 14.79 9.893 3.41109 4.88796 31.05 1484.88 1023.951 15.15 15.09 9.896 3.41162 4.88827 31.05 1484.89 1023.954 15.45 15.39 9.900 3.41233 4.88875 31.05 1484.92 1023.957 15.75 15.69 9.902 3.41238 4.88858 31.05 1484.93 1023.958 16.05 15.98 9.903 3.41346 4.88996 31.06 1484.95 1023.966 16.35 16.28 9.903 3.41447 4.89141 31.07 1484.97 1023.976 16.65 16.58 9.900 3.41463 4.89197 31.07 1484.97 1023.980 16.95 16.88 9.895 3.41411 4.89192 31.07 1484.95 1023.981 17.25 17.18 9.894 3.41434 4.89238 31.08 1484.96 1023.985 17.55 17.48 9.894 3.41366 4.89146 31.07 1484.95 1023.981 17.85 17.78 9.881 3.41435 4.89432 31.09 1484.93 1023.999 18.15 18.08 9.877 3.41498 4.89576 31.10 1484.93 1024.009 18.45 18.37 9.880 3.41486 4.89520 31.09 1484.94 1024.007 18.75 18.67 9.879 3.41408 4.89414 31.09 1484.94 1024.002 19.05 18.97 9.879 3.41625 4.89726 31.11 1484.97 1024.021 19.35 19.27 9.879 3.41816 4.90002 31.13 1485.00 1024.037 19.65 19.57 9.884 3.41911 4.90073 31.13 1485.03 1024.042 19.95 19.87 9.886 3.41917 4.90044 31.13 1485.04 1024.041 20.25 20.17 9.888 3.41988 4.90125 31.14 1485.06 1024.047 20.55 20.46 9.893 3.42121 4.90240 31.14 1485.09 1024.054 20.85 20.76 9.902 3.42219 4.90255 31.15 1485.13 1024.056 21.15 21.06 9.909 3.42302 4.90284 31.15 1485.16 1024.058 21.45 21.36 9.911 3.42347 4.90309 31.15 1485.18 1024.061 21.75 21.66 9.925 3.42337 4.90101 31.14 1485.22 1024.050 22.05 21.96 9.951 3.42666 4.90214 31.15 1485.33 1024.056 22.35 22.26 9.971 3.42791 4.90113 31.14 1485.40 1024.050 22.65 22.55 9.991 3.43229 4.90452 31.17 1485.51 1024.069 22.95 22.85 10.008 3.43862 4.91118 31.22 1485.64 1024.105 23.25 23.15 10.019 3.44314 4.91608 31.26 1485.73 1024.133 23.55 23.45 10.043 3.44773 4.91934 31.28 1485.85 1024.151 23.85 23.75 10.068 3.44823 4.91652 31.26 1485.93 1024.135 24.15 24.05 10.084 3.44971 4.91637 31.27 1485.99 1024.134 24.45 24.35 10.099 3.45095 4.91608 31.27 1486.05 1024.133 24.75 24.65 10.104 3.45334 4.91875 31.28 1486.09 1024.148 25.05 24.94 10.113 3.45538 4.92037 31.30 1486.15 1024.158 25.35 25.24 10.124 3.45627 4.92003 31.30 1486.19 1024.156 25.65 25.54 10.133 3.45818 4.92157 31.31 1486.24 1024.166 25.95 25.84 10.143 3.45838 4.92049 31.30 1486.27 1024.160 26.25 26.14 10.150 3.45873 4.92002 31.30 1486.30 1024.158 26.55 26.44 10.161 3.46039 4.92081 31.31 1486.36 1024.163 26.85 26.74 10.176 3.46367 4.92332 31.33 1486.44 1024.177 27.15 27.03 10.189 3.46520 4.92368 31.33 1486.50 1024.180 27.45 27.33 10.198 3.46930 4.92829 31.36 1486.57 1024.206 27.75 27.63 10.206 3.47192 4.93093 31.38 1486.63 1024.221 28.05 27.93 10.213 3.47306 4.93148 31.39 1486.67 1024.225 28.35 28.23 10.225 3.47456 4.93200 31.39 1486.72 1024.228 28.65 28.53 10.233 3.47813 4.93586 31.42 1486.79 1024.250 28.95 28.83 10.238 3.48191 4.94062 31.45 1486.85 1024.277 29.25 29.12 10.248 3.48283 4.94052 31.45 1486.89 1024.277 29.55 29.42 10.252 3.48287 4.93994 31.45 1486.91 1024.275 29.85 29.72 10.254 3.48279 4.93956 31.45 1486.92 1024.274 30.15 30.02 10.256 3.48409 4.94109 31.46 1486.95 1024.283 30.45 30.32 10.258 3.48431 4.94118 31.46 1486.96 1024.285 30.75 30.62 10.264 3.48463 4.94079 31.46 1486.98 1024.284 31.05 30.92 10.265 3.48582 4.94229 31.47 1487.00 1024.293 31.35 31.21 10.268 3.48642 4.94270 31.47 1487.02 1024.297 31.65 31.51 10.269 3.48676 4.94309 31.47 1487.03 1024.300 31.95 31.81 10.267 3.48770 4.94474 31.49 1487.04 1024.310 32.25 32.11 10.266 3.48751 4.94464 31.48 1487.04 1024.311 32.55 32.41 10.267 3.49151 4.95017 31.52 1487.10 1024.343 32.85 32.71 10.275 3.49251 4.95042 31.53 1487.14 1024.345 33.15 33.01 10.281 3.49390 4.95160 31.54 1487.17 1024.352 33.45 33.30 10.278 3.49337 4.95122 31.53 1487.17 1024.352 33.75 33.60 10.281 3.49957 4.95956 31.59 1487.25 1024.399 34.05 33.90 10.293 3.50315 4.96290 31.62 1487.33 1024.417 34.35 34.20 10.315 3.50746 4.96593 31.64 1487.45 1024.434 34.65 34.50 10.316 3.51045 4.97005 31.67 1487.49 1024.458 34.95 34.80 10.335 3.51689 4.97651 31.72 1487.62 1024.493 35.25 35.10 10.356 3.51863 4.97605 31.72 1487.70 1024.490 35.42 35.27 10.363 3.51834 4.97463 31.71 1487.72 1024.483