*2026/01/16 10:37:44.60 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/01/22 22:10:53.000 END TIME : UTC 2025/01/22 22:11:20.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 136 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 40.7 2 Depth metres 0.15 40.53 3 Temperature 'deg C (ITS90)' 8.3 10.33 4 Conductivity S/m 2.95018 3.50911 5 Conductance:Specific S/m 4.42971 4.96622 6 Salinity PSS-78 27.65 31.64 7 Speed:Sound m/s 1474.54 1487.6 8 Density kg/m^3 1021.473 1024.461 $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 : 20 LATITUDE : 48 57.30650 N ! (deg min) LONGITUDE : 125 2.06690 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250122_221053 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:23 136 136 MERGEHDR 1.3 2026/01/16 10:35:38 136 136 HDREDIT2 3.2 2026/01/16 10:36:08 ? ? REMOVECH 8.2 2026/01/16 10:36:37 136 136 CALIB 12.1 2026/01/16 10:37:10 136 136 CLEAN 5.3 2026/01/16 10:37:44 136 136 $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 8.308 2.95486 4.43568 27.70 1474.62 1021.503 0.45 0.45 8.300 2.95018 4.42971 27.65 1474.54 1021.473 0.75 0.75 8.422 2.98287 4.46244 27.89 1475.31 1021.646 1.05 1.05 8.681 3.03738 4.50898 28.25 1476.74 1021.889 1.35 1.35 8.790 3.07856 4.55537 28.59 1477.57 1022.137 1.65 1.65 8.798 3.07876 4.55462 28.58 1477.60 1022.134 1.95 1.95 8.869 3.07823 4.54425 28.52 1477.79 1022.076 2.25 2.24 8.980 3.11398 4.58213 28.79 1478.55 1022.277 2.55 2.54 9.047 3.11933 4.58091 28.79 1478.81 1022.269 2.85 2.84 9.145 3.13258 4.58723 28.85 1479.24 1022.300 3.15 3.14 9.284 3.13988 4.57928 28.81 1479.72 1022.250 3.45 3.44 9.388 3.16975 4.60877 29.03 1480.38 1022.406 3.75 3.74 9.457 3.18597 4.62316 29.14 1480.77 1022.482 4.05 4.04 9.528 3.21591 4.65695 29.38 1481.34 1022.663 4.35 4.34 9.627 3.24518 4.68584 29.60 1481.97 1022.816 4.65 4.64 9.724 3.27697 4.71857 29.84 1482.62 1022.990 4.95 4.94 9.791 3.28375 4.71928 29.85 1482.89 1022.991 5.25 5.24 9.853 3.29362 4.72504 29.90 1483.18 1023.020 5.55 5.53 9.903 3.30037 4.72788 29.93 1483.40 1023.034 5.85 5.83 9.954 3.31178 4.73739 30.00 1483.68 1023.083 6.15 6.13 9.999 3.31670 4.73831 30.01 1483.86 1023.087 6.45 6.43 10.028 3.32804 4.75053 30.10 1484.08 1023.153 6.75 6.73 10.052 3.33805 4.76150 30.18 1484.27 1023.213 7.05 7.03 10.083 3.34455 4.76667 30.22 1484.43 1023.240 7.35 7.33 10.106 3.36026 4.78587 30.36 1484.69 1023.345 7.65 7.63 10.116 3.38731 4.82308 30.62 1485.05 1023.550 7.95 7.93 10.127 3.38769 4.82208 30.61 1485.09 1023.545 8.25 8.22 10.120 3.38588 4.82045 30.60 1485.05 1023.537 8.55 8.52 10.116 3.38402 4.81833 30.59 1485.02 1023.527 8.85 8.82 10.110 3.38388 4.81896 30.59 1485.01 1023.532 9.15 9.12 10.100 3.38549 4.82260 30.61 1485.01 1023.554 9.45 9.42 10.090 3.38721 4.82640 30.64 1485.01 1023.577 9.75 9.72 10.090 3.39352 4.83551 30.70 1485.09 1023.628 10.05 10.02 10.101 3.40526 4.85065 30.81 1485.27 1023.712 10.35 10.32 10.104 3.41153 4.85917 30.87 1485.36 1023.760 10.65 10.61 10.102 3.41528 4.86482 30.91 1485.40 1023.792 10.95 10.91 10.093 3.41680 4.86827 30.93 1485.40 1023.813 11.25 11.21 10.083 3.41636 4.86894 30.94 1485.38 1023.819 11.55 11.51 10.075 3.42144 4.87730 30.99 1485.42 1023.867 11.85 11.81 10.086 3.42362 4.87885 31.01 1485.48 1023.876 12.15 12.11 10.091 3.42399 4.87873 31.01 1485.50 1023.876 12.45 12.41 10.086 3.42896 4.88656 31.06 1485.55 1023.921 12.75 12.70 10.088 3.43068 4.88863 31.08 1485.59 1023.933 13.05 13.00 10.093 3.43301 4.89132 31.09 1485.63 1023.949 13.35 13.30 10.101 3.43515 4.89324 31.11 1485.68 1023.960 13.65 13.60 10.104 3.43544 4.89321 31.11 1485.70 1023.961 13.95 13.90 10.111 3.43648 4.89379 31.11 1485.73 1023.965 14.25 14.20 10.122 3.43912 4.89592 31.13 1485.80 1023.977 14.55 14.50 10.140 3.44020 4.89505 31.13 1485.86 1023.972 14.85 14.80 10.140 3.44459 4.90118 31.17 1485.92 1024.007 15.15 15.09 10.147 3.44425 4.89980 31.16 1485.94 1024.001 15.45 15.39 10.148 3.44469 4.90029 31.16 1485.95 1024.004 15.75 15.69 10.150 3.44516 4.90066 31.17 1485.97 1024.008 16.05 15.99 10.148 3.44512 4.90087 31.17 1485.97 1024.010 16.35 16.29 10.151 3.44554 4.90109 31.17 1485.99 1024.012 16.65 16.59 10.153 3.44638 4.90201 31.18 1486.01 1024.019 16.95 16.89 10.154 3.44638 4.90176 31.17 1486.02 1024.018 17.25 17.18 10.152 3.44629 4.90205 31.18 1486.01 1024.021 17.55 17.48 10.149 3.44586 4.90183 31.17 1486.00 1024.022 17.85 17.78 10.147 3.44677 4.90329 31.18 1486.02 1024.031 18.15 18.08 10.151 3.44863 4.90541 31.20 1486.05 1024.044 18.45 18.38 10.159 3.44962 4.90581 31.20 1486.09 1024.047 18.75 18.68 10.166 3.45094 4.90660 31.21 1486.13 1024.052 19.05 18.98 10.179 3.45276 4.90744 31.22 1486.19 1024.057 19.35 19.28 10.194 3.45620 4.91014 31.24 1486.28 1024.072 19.65 19.57 10.207 3.45781 4.91062 31.24 1486.33 1024.075 19.95 19.87 10.216 3.45859 4.91055 31.24 1486.37 1024.075 20.25 20.17 10.220 3.45926 4.91091 31.25 1486.39 1024.078 20.55 20.47 10.228 3.46132 4.91276 31.26 1486.44 1024.089 20.85 20.77 10.234 3.46338 4.91486 31.27 1486.49 1024.101 21.15 21.07 10.236 3.46372 4.91508 31.28 1486.50 1024.104 21.45 21.37 10.239 3.46400 4.91499 31.28 1486.52 1024.104 21.75 21.66 10.242 3.46416 4.91476 31.27 1486.53 1024.104 22.05 21.96 10.245 3.46485 4.91541 31.28 1486.55 1024.109 22.35 22.26 10.250 3.46633 4.91682 31.29 1486.59 1024.117 22.65 22.56 10.255 3.46822 4.91883 31.30 1486.63 1024.129 22.95 22.86 10.250 3.46920 4.92088 31.32 1486.63 1024.142 23.25 23.16 10.242 3.46988 4.92297 31.33 1486.63 1024.156 23.55 23.46 10.249 3.47083 4.92330 31.34 1486.66 1024.158 23.85 23.75 10.258 3.47184 4.92346 31.34 1486.70 1024.160 24.15 24.05 10.264 3.47316 4.92458 31.35 1486.74 1024.167 24.45 24.35 10.262 3.47350 4.92524 31.35 1486.74 1024.172 24.75 24.65 10.259 3.47518 4.92808 31.37 1486.76 1024.189 25.05 24.95 10.269 3.47612 4.92808 31.37 1486.80 1024.189 25.35 25.25 10.274 3.47788 4.92982 31.38 1486.84 1024.200 25.65 25.55 10.279 3.47767 4.92887 31.38 1486.85 1024.196 25.95 25.84 10.279 3.47771 4.92882 31.38 1486.86 1024.197 26.25 26.14 10.281 3.47800 4.92904 31.38 1486.87 1024.199 26.55 26.44 10.281 3.47803 4.92908 31.38 1486.88 1024.200 26.85 26.74 10.280 3.47806 4.92917 31.38 1486.88 1024.202 27.15 27.04 10.278 3.47789 4.92925 31.38 1486.88 1024.204 27.45 27.34 10.278 3.47835 4.92995 31.38 1486.89 1024.209 27.75 27.64 10.277 3.48050 4.93314 31.41 1486.92 1024.228 28.05 27.93 10.279 3.48299 4.93640 31.43 1486.96 1024.247 28.35 28.23 10.277 3.48269 4.93625 31.43 1486.95 1024.248 28.65 28.53 10.285 3.48355 4.93630 31.43 1486.99 1024.249 28.95 28.83 10.286 3.48412 4.93700 31.43 1487.00 1024.254 29.25 29.13 10.286 3.48470 4.93773 31.44 1487.02 1024.259 29.55 29.43 10.290 3.48645 4.93978 31.45 1487.05 1024.271 29.85 29.73 10.290 3.48787 4.94167 31.47 1487.07 1024.283 30.15 30.02 10.294 3.48974 4.94383 31.48 1487.11 1024.296 30.45 30.32 10.294 3.48960 4.94354 31.48 1487.11 1024.296 30.75 30.62 10.295 3.48971 4.94361 31.48 1487.12 1024.297 31.05 30.92 10.293 3.49002 4.94432 31.49 1487.13 1024.302 31.35 31.22 10.294 3.49074 4.94523 31.49 1487.14 1024.309 31.65 31.52 10.295 3.49114 4.94568 31.50 1487.15 1024.312 31.95 31.82 10.299 3.49198 4.94630 31.50 1487.18 1024.317 32.25 32.11 10.300 3.49325 4.94795 31.51 1487.20 1024.327 32.55 32.41 10.301 3.49375 4.94849 31.52 1487.22 1024.331 32.85 32.71 10.301 3.49397 4.94886 31.52 1487.22 1024.334 33.15 33.01 10.301 3.49488 4.95009 31.53 1487.24 1024.343 33.45 33.31 10.298 3.49531 4.95121 31.53 1487.24 1024.350 33.75 33.61 10.301 3.49571 4.95129 31.54 1487.26 1024.352 34.05 33.91 10.301 3.49687 4.95299 31.55 1487.28 1024.362 34.35 34.20 10.307 3.49772 4.95326 31.55 1487.31 1024.365 34.65 34.50 10.309 3.49919 4.95508 31.56 1487.34 1024.376 34.95 34.80 10.311 3.50052 4.95666 31.57 1487.36 1024.385 35.25 35.10 10.311 3.50130 4.95782 31.58 1487.37 1024.393 35.55 35.40 10.312 3.50183 4.95838 31.59 1487.39 1024.397 35.85 35.70 10.314 3.50201 4.95845 31.59 1487.40 1024.399 36.15 36.00 10.317 3.50174 4.95754 31.58 1487.41 1024.395 36.45 36.29 10.317 3.50238 4.95842 31.59 1487.42 1024.401 36.75 36.59 10.318 3.50364 4.96014 31.60 1487.45 1024.412 37.05 36.89 10.319 3.50502 4.96201 31.61 1487.47 1024.423 37.35 37.19 10.320 3.50608 4.96325 31.62 1487.49 1024.431 37.65 37.49 10.321 3.50551 4.96235 31.61 1487.49 1024.428 37.95 37.79 10.323 3.50651 4.96350 31.62 1487.51 1024.435 38.25 38.09 10.324 3.50608 4.96271 31.62 1487.51 1024.432 38.55 38.38 10.324 3.50632 4.96303 31.62 1487.52 1024.435 38.85 38.68 10.326 3.50645 4.96305 31.62 1487.53 1024.436 39.15 38.98 10.325 3.50747 4.96455 31.63 1487.55 1024.446 39.45 39.28 10.327 3.50785 4.96484 31.63 1487.56 1024.448 39.75 39.58 10.329 3.50751 4.96403 31.63 1487.57 1024.445 40.05 39.88 10.330 3.50773 4.96422 31.63 1487.58 1024.447 40.35 40.18 10.330 3.50911 4.96613 31.64 1487.60 1024.459 40.70 40.53 10.329 3.50906 4.96622 31.64 1487.60 1024.461