*2026/01/16 10:37:48.92 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/02/20 21:02:39.000 END TIME : UTC 2025/02/20 21:03:05.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 135 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 40.33 2 Depth metres 0.15 40.14 3 Temperature 'deg C (ITS90)' 8.346 10.217 4 Conductivity S/m 3.07958 3.52018 5 Conductance:Specific S/m 4.60235 5.00442 6 Salinity PSS-78 28.87 31.87 7 Speed:Sound m/s 1476.63 1487.41 8 Density kg/m^3 1022.4 1024.683 $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 : 63 LATITUDE : 50 3.25740 N ! (deg min) LONGITUDE : 127 13.85950 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250220_210239 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:25 135 135 MERGEHDR 1.3 2026/01/16 10:35:40 135 135 HDREDIT2 3.2 2026/01/16 10:36:10 ? ? REMOVECH 8.2 2026/01/16 10:36:38 135 135 CALIB 12.1 2026/01/16 10:37:12 135 135 CLEAN 5.3 2026/01/16 10:37:48 135 135 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:10 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 8.457 3.07958 4.60235 28.87 1476.63 1022.400 0.45 0.45 8.465 3.08686 4.61201 28.94 1476.75 1022.453 0.75 0.75 8.484 3.08957 4.61351 28.95 1476.84 1022.462 1.05 1.05 8.498 3.09677 4.62227 29.01 1476.98 1022.510 1.35 1.35 8.514 3.11041 4.64045 29.14 1477.20 1022.609 1.65 1.64 8.529 3.11271 4.64180 29.15 1477.28 1022.618 1.95 1.94 8.540 3.11558 4.64462 29.17 1477.35 1022.634 2.25 2.24 8.558 3.12846 4.66127 29.29 1477.57 1022.725 2.55 2.54 8.602 3.16048 4.70286 29.58 1478.10 1022.951 2.85 2.84 8.632 3.22568 4.79555 30.23 1479.02 1023.457 3.15 3.14 8.656 3.23253 4.80229 30.28 1479.18 1023.494 3.45 3.44 8.685 3.24121 4.81111 30.35 1479.37 1023.542 3.75 3.74 8.695 3.24097 4.80923 30.34 1479.40 1023.533 4.05 4.04 8.705 3.24129 4.80840 30.33 1479.43 1023.529 4.35 4.33 8.715 3.25117 4.82158 30.43 1479.59 1023.602 4.65 4.63 8.727 3.25564 4.82646 30.46 1479.69 1023.630 4.95 4.93 8.751 3.25895 4.82789 30.48 1479.80 1023.638 5.25 5.23 8.784 3.26551 4.83286 30.51 1479.98 1023.665 5.55 5.53 8.809 3.27263 4.83994 30.57 1480.14 1023.704 5.85 5.83 8.833 3.27551 4.84073 30.58 1480.24 1023.709 6.15 6.13 8.852 3.28586 4.85326 30.67 1480.43 1023.778 6.45 6.43 8.895 3.29018 4.85356 30.67 1480.60 1023.779 6.75 6.72 8.981 3.30629 4.86493 30.77 1481.04 1023.839 7.05 7.02 9.032 3.32086 4.87903 30.87 1481.37 1023.915 7.35 7.32 9.069 3.32519 4.88001 30.88 1481.53 1023.920 7.65 7.62 9.112 3.32688 4.87638 30.86 1481.67 1023.899 7.95 7.92 9.144 3.32734 4.87256 30.84 1481.76 1023.878 8.25 8.22 9.158 3.32949 4.87361 30.85 1481.83 1023.885 8.55 8.52 9.174 3.33397 4.87798 30.88 1481.93 1023.909 8.85 8.81 9.183 3.33842 4.88320 30.92 1482.02 1023.939 9.15 9.11 9.167 3.34425 4.89398 30.99 1482.05 1024.000 9.45 9.41 9.143 3.34147 4.89334 30.99 1481.96 1023.999 9.75 9.71 9.109 3.34110 4.89770 31.01 1481.87 1024.025 10.05 10.01 9.087 3.33712 4.89499 30.99 1481.77 1024.013 10.35 10.31 9.063 3.33792 4.89959 31.02 1481.72 1024.040 10.65 10.61 9.009 3.33547 4.90386 31.04 1481.55 1024.068 10.95 10.91 8.932 3.33201 4.90979 31.07 1481.31 1024.105 11.25 11.20 8.861 3.32013 4.90258 31.01 1480.97 1024.069 11.55 11.50 8.819 3.31764 4.90497 31.02 1480.83 1024.085 11.85 11.80 8.778 3.31699 4.91004 31.05 1480.72 1024.116 12.15 12.10 8.749 3.31597 4.91265 31.07 1480.63 1024.133 12.45 12.40 8.730 3.31588 4.91534 31.08 1480.58 1024.149 12.75 12.70 8.720 3.31415 4.91429 31.07 1480.54 1024.145 13.05 13.00 8.714 3.31371 4.91442 31.07 1480.52 1024.147 13.35 13.29 8.703 3.31397 4.91642 31.08 1480.50 1024.160 13.65 13.59 8.678 3.31295 4.91864 31.10 1480.43 1024.174 13.95 13.89 8.658 3.31037 4.91763 31.09 1480.35 1024.171 14.25 14.19 8.653 3.30829 4.91535 31.07 1480.31 1024.160 14.55 14.49 8.646 3.30715 4.91463 31.06 1480.28 1024.157 14.85 14.79 8.626 3.30531 4.91488 31.06 1480.21 1024.161 15.15 15.09 8.595 3.30195 4.91436 31.05 1480.09 1024.160 15.45 15.38 8.562 3.29470 4.90838 31.01 1479.91 1024.130 15.75 15.68 8.512 3.29100 4.91018 31.01 1479.73 1024.142 16.05 15.98 8.477 3.28984 4.91360 31.03 1479.63 1024.164 16.35 16.28 8.439 3.28764 4.91582 31.04 1479.51 1024.178 16.65 16.58 8.420 3.28842 4.91986 31.07 1479.47 1024.202 16.95 16.88 8.425 3.29008 4.92161 31.08 1479.51 1024.213 17.25 17.18 8.425 3.29090 4.92289 31.09 1479.52 1024.221 17.55 17.47 8.403 3.28901 4.92318 31.09 1479.45 1024.225 17.85 17.77 8.388 3.28576 4.92057 31.07 1479.37 1024.212 18.15 18.07 8.382 3.28455 4.91968 31.06 1479.34 1024.209 18.45 18.37 8.373 3.28390 4.92001 31.06 1479.31 1024.212 18.75 18.67 8.362 3.28199 4.91878 31.05 1479.26 1024.207 19.05 18.97 8.350 3.28157 4.91982 31.05 1479.23 1024.214 19.35 19.27 8.346 3.28256 4.92189 31.07 1479.24 1024.227 19.65 19.56 8.347 3.28284 4.92231 31.07 1479.25 1024.230 19.95 19.86 8.359 3.28317 4.92101 31.06 1479.29 1024.224 20.25 20.16 8.378 3.28571 4.92196 31.07 1479.38 1024.230 20.55 20.46 8.403 3.29027 4.92515 31.10 1479.51 1024.248 20.85 20.76 8.460 3.29700 4.92671 31.12 1479.75 1024.256 21.15 21.06 8.504 3.30284 4.92898 31.14 1479.95 1024.269 21.45 21.36 8.518 3.30782 4.93446 31.18 1480.06 1024.300 21.75 21.65 8.553 3.31272 4.93651 31.20 1480.22 1024.311 22.05 21.95 8.591 3.31520 4.93459 31.19 1480.36 1024.300 22.35 22.25 8.617 3.31601 4.93199 31.18 1480.44 1024.287 22.65 22.55 8.637 3.31730 4.93098 31.17 1480.52 1024.282 22.95 22.85 8.646 3.31735 4.92974 31.17 1480.55 1024.276 23.25 23.15 8.649 3.31750 4.92952 31.16 1480.56 1024.276 23.55 23.44 8.649 3.31757 4.92961 31.16 1480.57 1024.277 23.85 23.74 8.649 3.31764 4.92981 31.17 1480.57 1024.280 24.15 24.04 8.645 3.31702 4.92950 31.16 1480.56 1024.280 24.45 24.34 8.643 3.31688 4.92948 31.16 1480.56 1024.281 24.75 24.64 8.643 3.31756 4.93056 31.17 1480.57 1024.288 25.05 24.94 8.625 3.31917 4.93559 31.20 1480.55 1024.318 25.35 25.24 8.609 3.31730 4.93508 31.20 1480.49 1024.317 25.65 25.53 8.617 3.31576 4.93162 31.17 1480.49 1024.298 25.95 25.83 8.632 3.31612 4.93005 31.16 1480.54 1024.291 26.25 26.13 8.619 3.32092 4.93899 31.23 1480.57 1024.341 26.55 26.43 8.614 3.32502 4.94586 31.27 1480.62 1024.380 26.85 26.73 8.635 3.32345 4.94048 31.24 1480.66 1024.352 27.15 27.03 8.654 3.32495 4.93987 31.24 1480.73 1024.349 27.45 27.33 8.686 3.32868 4.94080 31.25 1480.87 1024.354 27.75 27.62 8.757 3.33531 4.94015 31.25 1481.15 1024.349 28.05 27.92 8.861 3.33859 4.92982 31.19 1481.47 1024.290 28.35 28.22 9.014 3.37222 4.95708 31.41 1482.31 1024.434 28.65 28.52 9.212 3.40151 4.97128 31.54 1483.20 1024.505 28.95 28.82 9.325 3.43555 5.00442 31.78 1483.93 1024.683 29.25 29.12 9.426 3.44553 5.00423 31.80 1484.32 1024.678 29.55 29.42 9.529 3.44985 4.99559 31.75 1484.65 1024.626 29.85 29.71 9.611 3.44676 4.97928 31.65 1484.82 1024.533 30.15 30.01 9.635 3.44451 4.97257 31.60 1484.86 1024.496 30.45 30.31 9.623 3.43643 4.96262 31.53 1484.74 1024.443 30.75 30.61 9.596 3.43272 4.96118 31.52 1484.62 1024.438 31.05 30.91 9.583 3.43129 4.96094 31.51 1484.58 1024.439 31.35 31.21 9.599 3.43338 4.96169 31.52 1484.65 1024.443 31.65 31.50 9.655 3.44011 4.96342 31.54 1484.88 1024.451 31.95 31.80 9.689 3.44803 4.96984 31.59 1485.08 1024.486 32.25 32.10 9.708 3.46023 4.98471 31.70 1485.28 1024.568 32.55 32.40 9.751 3.46629 4.98731 31.72 1485.47 1024.581 32.85 32.70 9.794 3.46810 4.98374 31.70 1485.61 1024.560 33.15 33.00 9.821 3.46832 4.98019 31.68 1485.69 1024.540 33.45 33.30 9.843 3.46944 4.97865 31.67 1485.76 1024.531 33.75 33.59 9.860 3.47069 4.97798 31.67 1485.83 1024.528 34.05 33.89 9.881 3.47335 4.97884 31.68 1485.92 1024.533 34.35 34.19 9.919 3.47690 4.97856 31.68 1486.06 1024.530 34.65 34.49 9.928 3.48016 4.98184 31.70 1486.13 1024.549 34.95 34.79 9.951 3.48597 4.98690 31.74 1486.27 1024.576 35.25 35.09 9.975 3.48971 4.98884 31.76 1486.38 1024.587 35.55 35.38 10.006 3.49147 4.98693 31.75 1486.48 1024.576 35.85 35.68 10.055 3.49314 4.98242 31.72 1486.63 1024.549 36.15 35.98 10.081 3.49991 4.98838 31.77 1486.79 1024.581 36.45 36.28 10.102 3.50501 4.99259 31.80 1486.91 1024.604 36.75 36.58 10.130 3.50993 4.99564 31.83 1487.04 1024.621 37.05 36.88 10.150 3.51567 5.00089 31.87 1487.17 1024.649 37.35 37.18 10.184 3.51693 4.99792 31.85 1487.28 1024.632 37.65 37.47 10.207 3.51796 4.99610 31.84 1487.35 1024.622 37.95 37.77 10.213 3.51851 4.99597 31.84 1487.38 1024.622 38.25 38.07 10.216 3.52018 4.99801 31.85 1487.41 1024.634 38.55 38.37 10.217 3.51909 4.99631 31.84 1487.41 1024.626 38.85 38.67 10.214 3.51923 4.99688 31.84 1487.40 1024.630 39.15 38.97 10.209 3.51754 4.99522 31.83 1487.38 1024.623 39.45 39.26 10.192 3.51512 4.99419 31.82 1487.31 1024.620 39.75 39.56 10.145 3.51243 4.99709 31.84 1487.16 1024.640 40.05 39.86 10.122 3.51094 4.99825 31.84 1487.09 1024.649 40.33 40.14 10.112 3.51095 4.99964 31.85 1487.07 1024.659