*2026/01/16 10:37:49.17 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/02/20 23:50:47.000 END TIME : UTC 2025/02/20 23:51:12.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 127 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 37.98 2 Depth metres 0.15 37.82 3 Temperature 'deg C (ITS90)' 8 10.852 4 Conductivity S/m 1.76641 3.55662 5 Conductance:Specific S/m 2.67638 4.98064 6 Salinity PSS-78 15.91 31.78 7 Speed:Sound m/s 1458.91 1489.24 8 Density kg/m^3 1012.321 1024.505 $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 : 67 LATITUDE : 50 6.15270 N ! (deg min) LONGITUDE : 127 8.15480 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250220_235047 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:26 127 127 MERGEHDR 1.3 2026/01/16 10:35:40 127 127 HDREDIT2 3.2 2026/01/16 10:36:11 ? ? REMOVECH 8.2 2026/01/16 10:36:38 127 127 CALIB 12.1 2026/01/16 10:37:12 127 127 CLEAN 5.3 2026/01/16 10:37:49 127 127 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:11 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 10:36:38 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:12 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 8.000 1.76641 2.67638 15.91 1458.91 1012.321 0.45 0.45 8.178 1.91962 2.89292 17.33 1461.37 1013.413 0.75 0.75 8.468 2.49122 3.72182 22.85 1469.29 1017.696 1.05 1.05 8.531 2.74442 4.09236 25.37 1472.63 1019.658 1.35 1.35 8.548 2.86684 4.27277 26.61 1474.22 1020.623 1.65 1.65 8.584 2.90210 4.32062 26.94 1474.77 1020.880 1.95 1.95 8.800 3.01422 4.45886 27.92 1476.80 1021.617 2.25 2.25 8.919 3.06642 4.52025 28.36 1477.78 1021.945 2.55 2.55 9.003 3.13883 4.61550 29.03 1478.93 1022.459 2.85 2.85 9.123 3.23875 4.74563 29.95 1480.51 1023.163 3.15 3.15 9.229 3.29902 4.81899 30.48 1481.56 1023.560 3.45 3.45 9.327 3.33556 4.85850 30.77 1482.28 1023.773 3.75 3.75 9.469 3.36087 4.87515 30.90 1482.97 1023.858 4.05 4.05 9.620 3.37833 4.87921 30.95 1483.59 1023.874 4.35 4.34 9.647 3.38350 4.88280 30.98 1483.73 1023.893 4.65 4.64 9.659 3.38315 4.88063 30.97 1483.76 1023.882 4.95 4.94 9.673 3.38445 4.88056 30.97 1483.82 1023.882 5.25 5.24 9.684 3.38937 4.88606 31.01 1483.91 1023.913 5.55 5.54 9.746 3.40445 4.89899 31.11 1484.27 1023.981 5.85 5.84 9.787 3.41451 4.90768 31.17 1484.50 1024.028 6.15 6.14 9.831 3.41771 4.90610 31.17 1484.66 1024.018 6.45 6.43 9.868 3.42076 4.90532 31.17 1484.80 1024.012 6.75 6.73 9.896 3.42443 4.90657 31.18 1484.92 1024.019 7.05 7.03 9.917 3.42772 4.90841 31.20 1485.02 1024.029 7.35 7.33 9.943 3.43156 4.91016 31.21 1485.14 1024.038 7.65 7.63 9.967 3.43366 4.90993 31.21 1485.23 1024.036 7.95 7.93 9.986 3.43661 4.91146 31.23 1485.32 1024.045 8.25 8.23 9.998 3.43755 4.91106 31.22 1485.37 1024.043 8.55 8.52 10.009 3.43824 4.91049 31.22 1485.41 1024.041 8.85 8.82 10.022 3.44064 4.91211 31.23 1485.48 1024.050 9.15 9.12 10.043 3.44317 4.91283 31.24 1485.56 1024.054 9.45 9.42 10.071 3.44803 4.91585 31.27 1485.70 1024.070 9.75 9.72 10.076 3.44811 4.91526 31.26 1485.72 1024.068 10.05 10.02 10.072 3.44732 4.91466 31.26 1485.70 1024.066 10.35 10.32 10.086 3.44931 4.91552 31.27 1485.77 1024.071 10.65 10.61 10.115 3.45631 4.92138 31.31 1485.94 1024.102 10.95 10.91 10.140 3.45916 4.92198 31.32 1486.04 1024.105 11.25 11.21 10.159 3.46014 4.92067 31.31 1486.10 1024.098 11.55 11.51 10.174 3.46135 4.92028 31.31 1486.16 1024.096 11.85 11.81 10.186 3.46281 4.92076 31.31 1486.21 1024.099 12.15 12.11 10.193 3.46342 4.92069 31.31 1486.24 1024.100 12.45 12.41 10.199 3.46357 4.92001 31.31 1486.27 1024.097 12.75 12.70 10.202 3.46422 4.92045 31.31 1486.29 1024.100 13.05 13.00 10.208 3.46582 4.92192 31.32 1486.33 1024.109 13.35 13.30 10.217 3.46634 4.92138 31.32 1486.36 1024.107 13.65 13.60 10.225 3.46758 4.92207 31.33 1486.40 1024.111 13.95 13.90 10.229 3.46838 4.92264 31.33 1486.43 1024.115 14.25 14.20 10.232 3.46959 4.92392 31.34 1486.45 1024.124 14.55 14.50 10.235 3.46883 4.92241 31.33 1486.46 1024.116 14.85 14.80 10.239 3.46939 4.92269 31.33 1486.48 1024.119 15.15 15.09 10.238 3.46917 4.92246 31.33 1486.48 1024.119 15.45 15.39 10.249 3.46909 4.92085 31.32 1486.51 1024.111 15.75 15.69 10.253 3.47087 4.92274 31.34 1486.55 1024.122 16.05 15.99 10.265 3.47259 4.92352 31.34 1486.60 1024.127 16.35 16.29 10.271 3.47837 4.93089 31.39 1486.69 1024.168 16.65 16.59 10.281 3.47911 4.93061 31.39 1486.73 1024.167 16.95 16.89 10.294 3.47873 4.92827 31.38 1486.77 1024.155 17.25 17.18 10.291 3.47906 4.92904 31.38 1486.77 1024.160 17.55 17.48 10.286 3.47849 4.92897 31.38 1486.75 1024.161 17.85 17.78 10.282 3.47794 4.92876 31.38 1486.74 1024.162 18.15 18.08 10.281 3.47861 4.92986 31.39 1486.75 1024.169 18.45 18.38 10.281 3.47928 4.93079 31.39 1486.76 1024.176 18.75 18.68 10.279 3.48064 4.93299 31.41 1486.78 1024.189 19.05 18.98 10.277 3.48062 4.93324 31.41 1486.78 1024.192 19.35 19.27 10.282 3.47973 4.93125 31.40 1486.79 1024.182 19.65 19.57 10.290 3.48094 4.93191 31.40 1486.83 1024.186 19.95 19.87 10.310 3.48389 4.93333 31.42 1486.92 1024.194 20.25 20.17 10.332 3.48678 4.93434 31.42 1487.01 1024.199 20.55 20.47 10.350 3.49247 4.93986 31.47 1487.13 1024.230 20.85 20.77 10.359 3.49522 4.94249 31.49 1487.19 1024.245 21.15 21.07 10.377 3.49450 4.93900 31.46 1487.23 1024.225 21.45 21.36 10.388 3.49507 4.93816 31.46 1487.28 1024.221 21.75 21.66 10.404 3.49698 4.93864 31.46 1487.34 1024.224 22.05 21.96 10.434 3.49933 4.93786 31.46 1487.45 1024.219 22.35 22.26 10.470 3.50653 4.94303 31.50 1487.64 1024.246 22.65 22.56 10.512 3.51531 4.94945 31.55 1487.85 1024.279 22.95 22.86 10.548 3.52099 4.95242 31.58 1488.02 1024.294 23.25 23.15 10.580 3.52367 4.95180 31.58 1488.14 1024.290 23.55 23.45 10.630 3.52597 4.94806 31.56 1488.29 1024.266 23.85 23.75 10.685 3.53298 4.95028 31.58 1488.52 1024.276 24.15 24.05 10.736 3.54073 4.95407 31.61 1488.75 1024.294 24.45 24.35 10.812 3.55002 4.95653 31.64 1489.05 1024.302 24.75 24.65 10.852 3.55662 4.96018 31.67 1489.24 1024.321 25.05 24.95 10.829 3.55327 4.95868 31.65 1489.15 1024.315 25.35 25.24 10.788 3.54081 4.94690 31.57 1488.90 1024.255 25.65 25.54 10.737 3.53642 4.94787 31.57 1488.72 1024.266 25.95 25.84 10.719 3.53769 4.95217 31.60 1488.70 1024.292 26.25 26.14 10.706 3.53822 4.95461 31.61 1488.68 1024.308 26.55 26.44 10.713 3.53865 4.95435 31.61 1488.70 1024.307 26.85 26.74 10.720 3.54077 4.95635 31.62 1488.75 1024.319 27.15 27.04 10.725 3.54228 4.95766 31.63 1488.79 1024.327 27.45 27.33 10.733 3.54169 4.95576 31.62 1488.81 1024.317 27.75 27.63 10.744 3.54282 4.95586 31.62 1488.85 1024.318 28.05 27.93 10.759 3.54634 4.95867 31.65 1488.94 1024.334 28.35 28.23 10.770 3.54969 4.96188 31.67 1489.01 1024.352 28.65 28.53 10.775 3.55184 4.96408 31.69 1489.05 1024.365 28.95 28.83 10.777 3.55238 4.96458 31.69 1489.07 1024.369 29.25 29.13 10.767 3.55169 4.96505 31.69 1489.04 1024.373 29.55 29.42 10.756 3.54850 4.96206 31.67 1488.98 1024.359 29.85 29.72 10.729 3.54467 4.96053 31.65 1488.87 1024.354 30.15 30.02 10.705 3.54075 4.95831 31.64 1488.77 1024.345 30.45 30.32 10.691 3.54245 4.96264 31.66 1488.76 1024.371 30.75 30.62 10.674 3.54401 4.96722 31.69 1488.74 1024.399 31.05 30.92 10.673 3.54342 4.96647 31.69 1488.73 1024.396 31.35 31.22 10.672 3.54288 4.96589 31.68 1488.73 1024.394 31.65 31.51 10.670 3.54342 4.96692 31.69 1488.73 1024.401 31.95 31.81 10.675 3.54477 4.96819 31.70 1488.77 1024.409 32.25 32.11 10.682 3.54573 4.96852 31.70 1488.80 1024.412 32.55 32.41 10.689 3.54803 4.97081 31.72 1488.85 1024.425 32.85 32.71 10.686 3.54868 4.97213 31.73 1488.86 1024.434 33.15 33.01 10.689 3.54901 4.97209 31.73 1488.87 1024.435 33.45 33.30 10.696 3.54927 4.97147 31.73 1488.90 1024.432 33.75 33.60 10.697 3.54928 4.97138 31.73 1488.91 1024.433 34.05 33.90 10.691 3.54915 4.97210 31.73 1488.89 1024.438 34.35 34.20 10.688 3.55034 4.97416 31.74 1488.91 1024.451 34.65 34.50 10.695 3.55102 4.97414 31.74 1488.94 1024.452 34.95 34.80 10.698 3.55138 4.97421 31.75 1488.95 1024.453 35.25 35.10 10.696 3.55152 4.97463 31.75 1488.95 1024.457 35.55 35.39 10.692 3.55147 4.97517 31.75 1488.95 1024.462 35.85 35.69 10.684 3.55122 4.97589 31.76 1488.93 1024.467 36.15 35.99 10.664 3.55107 4.97853 31.77 1488.88 1024.485 36.45 36.29 10.663 3.55071 4.97810 31.77 1488.88 1024.484 36.75 36.59 10.665 3.55221 4.97990 31.78 1488.91 1024.495 37.05 36.89 10.667 3.55235 4.97982 31.78 1488.92 1024.495 37.35 37.19 10.670 3.55278 4.98008 31.78 1488.94 1024.498 37.65 37.48 10.661 3.55214 4.98050 31.78 1488.91 1024.502 37.98 37.82 10.658 3.55199 4.98064 31.78 1488.91 1024.505