*2026/01/16 10:37:46.44 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/01/23 23:02:06.000 END TIME : UTC 2025/01/23 23:02:27.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 106 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 31.67 2 Depth metres 0.15 31.53 3 Temperature 'deg C (ITS90)' 7.942 10.31 4 Conductivity S/m 2.9934 3.50626 5 Conductance:Specific S/m 4.53362 4.96742 6 Salinity PSS-78 28.33 31.65 7 Speed:Sound m/s 1474.21 1487.37 8 Density kg/m^3 1022.049 1024.431 $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 : 35 LATITUDE : 48 56.56080 N ! (deg min) LONGITUDE : 125 15.99200 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250123_230206 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:24 106 106 MERGEHDR 1.3 2026/01/16 10:35:38 106 106 HDREDIT2 3.2 2026/01/16 10:36:09 ? ? REMOVECH 8.2 2026/01/16 10:36:37 106 106 CALIB 12.1 2026/01/16 10:37:10 106 106 CLEAN 5.3 2026/01/16 10:37:46 106 106 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:09 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 7.961 3.02620 4.59056 28.72 1474.55 1022.350 0.45 0.45 7.951 3.01924 4.58138 28.65 1474.44 1022.302 0.75 0.75 7.945 3.01358 4.57371 28.60 1474.35 1022.262 1.05 1.05 7.942 3.00325 4.55835 28.49 1474.21 1022.180 1.35 1.35 7.962 3.00818 4.56317 28.53 1474.34 1022.207 1.65 1.65 7.991 2.99914 4.54538 28.41 1474.31 1022.112 1.95 1.94 8.013 2.99340 4.53362 28.33 1474.30 1022.049 2.25 2.24 8.064 3.00400 4.54275 28.40 1474.59 1022.098 2.55 2.54 8.125 3.02637 4.56811 28.58 1475.05 1022.235 2.85 2.84 8.176 3.04158 4.58407 28.70 1475.40 1022.321 3.15 3.14 8.213 3.04504 4.58404 28.71 1475.55 1022.321 3.45 3.44 8.284 3.04998 4.58173 28.70 1475.82 1022.308 3.75 3.74 8.410 3.06168 4.58198 28.72 1476.33 1022.306 4.05 4.04 8.569 3.10707 4.62793 29.06 1477.35 1022.551 4.35 4.34 8.728 3.15259 4.67350 29.40 1478.38 1022.794 4.65 4.64 8.893 3.20360 4.72606 29.78 1479.48 1023.075 4.95 4.94 9.039 3.21781 4.72665 29.81 1480.06 1023.073 5.25 5.23 9.176 3.22506 4.71825 29.77 1480.52 1023.021 5.55 5.53 9.292 3.23477 4.71648 29.77 1480.96 1023.007 5.85 5.83 9.384 3.24316 4.71604 29.78 1481.32 1023.001 6.15 6.13 9.478 3.25840 4.72532 29.85 1481.76 1023.048 6.45 6.43 9.578 3.28336 4.74783 30.02 1482.34 1023.166 6.75 6.73 9.631 3.29960 4.76399 30.14 1482.69 1023.253 7.05 7.03 9.707 3.32236 4.78623 30.31 1483.18 1023.371 7.35 7.33 9.734 3.32334 4.78395 30.30 1483.26 1023.359 7.65 7.63 9.768 3.32442 4.78092 30.28 1483.37 1023.341 7.95 7.92 9.801 3.33072 4.78541 30.32 1483.54 1023.365 8.25 8.22 9.820 3.33441 4.78804 30.34 1483.64 1023.379 8.55 8.52 9.841 3.34053 4.79395 30.38 1483.77 1023.412 8.85 8.82 9.868 3.34432 4.79574 30.40 1483.90 1023.421 9.15 9.12 9.898 3.34864 4.79779 30.41 1484.03 1023.432 9.45 9.42 9.927 3.35057 4.79656 30.41 1484.14 1023.424 9.75 9.72 9.948 3.35836 4.80476 30.47 1484.29 1023.469 10.05 10.02 9.962 3.36457 4.81182 30.52 1484.41 1023.508 10.35 10.32 9.978 3.37300 4.82162 30.59 1484.56 1023.562 10.65 10.61 10.005 3.38222 4.83107 30.66 1484.75 1023.614 10.95 10.91 10.043 3.39985 4.85099 30.81 1485.06 1023.722 11.25 11.21 10.078 3.41109 4.86214 30.89 1485.30 1023.782 11.55 11.51 10.103 3.42251 4.87497 30.98 1485.51 1023.852 11.85 11.81 10.126 3.43001 4.88243 31.04 1485.66 1023.893 12.15 12.11 10.140 3.43240 4.88387 31.05 1485.73 1023.901 12.45 12.41 10.147 3.43411 4.88537 31.06 1485.78 1023.910 12.75 12.70 10.153 3.43591 4.88708 31.07 1485.82 1023.920 13.05 13.00 10.158 3.43716 4.88817 31.08 1485.85 1023.927 13.35 13.30 10.160 3.43767 4.88859 31.08 1485.87 1023.930 13.65 13.60 10.163 3.43866 4.88960 31.09 1485.89 1023.937 13.95 13.90 10.164 3.43809 4.88868 31.08 1485.89 1023.933 14.25 14.20 10.164 3.43974 4.89099 31.10 1485.92 1023.947 14.55 14.50 10.164 3.44044 4.89194 31.11 1485.93 1023.954 14.85 14.80 10.164 3.44166 4.89367 31.12 1485.95 1023.964 15.15 15.09 10.166 3.44281 4.89509 31.13 1485.97 1023.973 15.45 15.39 10.167 3.44294 4.89520 31.13 1485.98 1023.975 15.75 15.69 10.168 3.44346 4.89579 31.13 1485.99 1023.980 16.05 15.99 10.169 3.44396 4.89634 31.14 1486.01 1023.984 16.35 16.29 10.169 3.44440 4.89686 31.14 1486.02 1023.988 16.65 16.59 10.171 3.44462 4.89689 31.14 1486.03 1023.989 16.95 16.89 10.172 3.44525 4.89770 31.15 1486.05 1023.995 17.25 17.18 10.173 3.44501 4.89724 31.14 1486.05 1023.994 17.55 17.48 10.175 3.44567 4.89794 31.15 1486.07 1023.999 17.85 17.78 10.175 3.44588 4.89818 31.15 1486.08 1024.001 18.15 18.08 10.175 3.44681 4.89950 31.16 1486.09 1024.010 18.45 18.38 10.175 3.44708 4.89991 31.16 1486.10 1024.013 18.75 18.68 10.176 3.44705 4.89976 31.16 1486.11 1024.014 19.05 18.98 10.177 3.44744 4.90015 31.16 1486.12 1024.017 19.35 19.28 10.178 3.44831 4.90120 31.17 1486.14 1024.024 19.65 19.57 10.179 3.44807 4.90079 31.17 1486.14 1024.023 19.95 19.87 10.179 3.44885 4.90186 31.18 1486.16 1024.030 20.25 20.17 10.180 3.44905 4.90208 31.18 1486.17 1024.032 20.55 20.47 10.180 3.44993 4.90328 31.19 1486.18 1024.040 20.85 20.77 10.180 3.45011 4.90356 31.19 1486.19 1024.043 21.15 21.07 10.181 3.45079 4.90431 31.19 1486.21 1024.048 21.45 21.37 10.182 3.45134 4.90505 31.20 1486.22 1024.054 21.75 21.66 10.182 3.45092 4.90438 31.19 1486.22 1024.051 22.05 21.96 10.182 3.45226 4.90635 31.21 1486.24 1024.063 22.35 22.26 10.182 3.45275 4.90698 31.21 1486.25 1024.068 22.65 22.56 10.181 3.45353 4.90826 31.22 1486.26 1024.076 22.95 22.86 10.180 3.45333 4.90813 31.22 1486.26 1024.077 23.25 23.16 10.184 3.45402 4.90857 31.22 1486.28 1024.080 23.55 23.46 10.186 3.45454 4.90897 31.23 1486.30 1024.084 23.85 23.75 10.186 3.45592 4.91090 31.24 1486.32 1024.096 24.15 24.05 10.187 3.45657 4.91172 31.25 1486.34 1024.101 24.45 24.35 10.190 3.45778 4.91306 31.26 1486.36 1024.110 24.75 24.65 10.190 3.45910 4.91492 31.27 1486.39 1024.121 25.05 24.95 10.192 3.46065 4.91682 31.28 1486.41 1024.133 25.35 25.25 10.199 3.46169 4.91737 31.29 1486.45 1024.137 25.65 25.55 10.201 3.46458 4.92115 31.31 1486.49 1024.159 25.95 25.85 10.200 3.46562 4.92280 31.32 1486.51 1024.169 26.25 26.14 10.202 3.46739 4.92504 31.34 1486.54 1024.182 26.55 26.44 10.204 3.46917 4.92727 31.36 1486.57 1024.196 26.85 26.74 10.207 3.47048 4.92862 31.37 1486.60 1024.204 27.15 27.04 10.207 3.47116 4.92957 31.37 1486.62 1024.211 27.45 27.34 10.210 3.47296 4.93179 31.39 1486.65 1024.224 27.75 27.64 10.213 3.47469 4.93378 31.40 1486.68 1024.236 28.05 27.94 10.221 3.47617 4.93479 31.41 1486.73 1024.242 28.35 28.23 10.225 3.47638 4.93458 31.41 1486.74 1024.242 28.65 28.53 10.224 3.47904 4.93848 31.44 1486.78 1024.265 28.95 28.83 10.228 3.48352 4.94430 31.48 1486.85 1024.298 29.25 29.13 10.232 3.48685 4.94841 31.51 1486.90 1024.322 29.55 29.43 10.239 3.48765 4.94854 31.51 1486.94 1024.323 29.85 29.73 10.248 3.48988 4.95047 31.52 1486.99 1024.334 30.15 30.03 10.255 3.49071 4.95068 31.53 1487.02 1024.336 30.45 30.32 10.259 3.49112 4.95067 31.53 1487.04 1024.337 30.75 30.62 10.262 3.49637 4.95776 31.58 1487.12 1024.377 31.05 30.92 10.277 3.50472 4.96742 31.65 1487.26 1024.431 31.35 31.22 10.298 3.50626 4.96671 31.64 1487.34 1024.427 31.67 31.53 10.310 3.50614 4.96481 31.63 1487.37 1024.417