*2026/01/16 10:37:51.32 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/04/09 18:31:32.000 END TIME : UTC 2025/04/09 18:31:52.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 103 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 30.66 2 Depth metres 0.15 30.61 3 Temperature 'deg C (ITS90)' 7.779 8.956 4 Conductivity S/m 0.40797 3.14474 5 Conductance:Specific S/m 0.62232 4.67554 6 Salinity PSS-78 3.31 29.39 7 Speed:Sound m/s 1442.41 1478.43 8 Density kg/m^3 1002.477 1022.92 $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 : 99 LATITUDE : 49 39.59910 N ! (deg min) LONGITUDE : 126 9.46080 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250409_183132 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:27 103 103 MERGEHDR 1.3 2026/01/16 10:35:41 103 103 HDREDIT2 3.2 2026/01/16 10:36:12 ? ? REMOVECH 8.2 2026/01/16 10:36:39 103 103 CALIB 12.1 2026/01/16 10:37:14 103 103 CLEAN 5.3 2026/01/16 10:37:51 103 103 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:12 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 10:36:39 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:14 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 7.779 0.40797 0.62232 3.31 1442.41 1002.477 0.45 0.46 7.896 0.42548 0.64670 3.45 1443.07 1002.581 0.75 0.76 8.068 0.54119 0.81831 4.44 1445.02 1003.345 1.05 1.07 8.196 0.75236 1.13320 6.29 1447.86 1004.789 1.35 1.37 8.276 0.77880 1.17020 6.51 1448.46 1004.958 1.65 1.68 8.466 1.04873 1.56686 8.92 1452.21 1006.828 1.95 1.98 8.612 1.72193 2.56152 15.20 1460.50 1011.716 2.25 2.28 8.671 2.28619 3.39492 20.68 1467.44 1015.982 2.55 2.58 8.648 2.70570 4.02062 24.89 1472.52 1019.277 2.85 2.88 8.804 2.86464 4.23714 26.39 1474.95 1020.427 3.15 3.18 8.922 2.93873 4.33156 27.05 1476.22 1020.930 3.45 3.48 8.956 2.95034 4.34430 27.15 1476.46 1020.998 3.75 3.78 8.949 2.95725 4.35544 27.22 1476.53 1021.060 4.05 4.08 8.935 2.96740 4.37221 27.34 1476.62 1021.152 4.35 4.38 8.924 2.97497 4.38476 27.42 1476.69 1021.221 4.65 4.68 8.909 2.98612 4.40315 27.55 1476.79 1021.323 4.95 4.98 8.880 2.99116 4.41440 27.62 1476.78 1021.386 5.25 5.28 8.853 2.99591 4.42488 27.69 1476.77 1021.445 5.55 5.58 8.823 3.00041 4.43542 27.76 1476.74 1021.505 5.85 5.87 8.784 3.00514 4.44755 27.84 1476.70 1021.573 6.15 6.17 8.729 3.01047 4.46271 27.93 1476.61 1021.659 6.45 6.47 8.717 3.01458 4.47038 27.99 1476.64 1021.702 6.75 6.77 8.693 3.01886 4.47995 28.05 1476.63 1021.756 7.05 7.07 8.677 3.01948 4.48298 28.07 1476.60 1021.774 7.35 7.37 8.663 3.02162 4.48808 28.10 1476.59 1021.804 7.65 7.67 8.659 3.02322 4.49095 28.12 1476.60 1021.821 7.95 7.97 8.653 3.02568 4.49540 28.15 1476.62 1021.846 8.25 8.27 8.650 3.02664 4.49720 28.16 1476.63 1021.857 8.55 8.57 8.652 3.02733 4.49794 28.17 1476.65 1021.863 8.85 8.87 8.661 3.02847 4.49855 28.17 1476.69 1021.867 9.15 9.17 8.672 3.03472 4.50634 28.23 1476.81 1021.910 9.45 9.47 8.671 3.04382 4.51999 28.32 1476.92 1021.985 9.75 9.77 8.674 3.04425 4.52025 28.32 1476.94 1021.988 10.05 10.06 8.673 3.04387 4.51977 28.32 1476.94 1021.986 10.35 10.36 8.669 3.04440 4.52106 28.33 1476.94 1021.995 10.65 10.66 8.663 3.04410 4.52148 28.33 1476.92 1021.998 10.95 10.96 8.659 3.04642 4.52540 28.36 1476.95 1022.021 11.25 11.26 8.661 3.04490 4.52288 28.34 1476.94 1022.009 11.55 11.56 8.663 3.04546 4.52345 28.34 1476.96 1022.013 11.85 11.86 8.662 3.04629 4.52475 28.35 1476.97 1022.021 12.15 12.16 8.667 3.04760 4.52611 28.36 1477.00 1022.030 12.45 12.46 8.675 3.05205 4.53162 28.40 1477.09 1022.061 12.75 12.76 8.673 3.05805 4.54077 28.46 1477.16 1022.112 13.05 13.06 8.679 3.05884 4.54119 28.47 1477.19 1022.115 13.35 13.36 8.685 3.05731 4.53809 28.45 1477.19 1022.099 13.65 13.65 8.687 3.05809 4.53901 28.45 1477.21 1022.105 13.95 13.95 8.684 3.06156 4.54452 28.49 1477.26 1022.136 14.25 14.25 8.682 3.06184 4.54523 28.50 1477.26 1022.142 14.55 14.55 8.678 3.06252 4.54683 28.51 1477.26 1022.152 14.85 14.85 8.674 3.06258 4.54735 28.51 1477.26 1022.156 15.15 15.15 8.674 3.06208 4.54664 28.50 1477.25 1022.154 15.45 15.45 8.675 3.06198 4.54635 28.50 1477.26 1022.153 15.75 15.75 8.675 3.06188 4.54617 28.50 1477.26 1022.154 16.05 16.05 8.680 3.06479 4.54981 28.53 1477.32 1022.174 16.35 16.35 8.681 3.06974 4.55705 28.58 1477.39 1022.215 16.65 16.65 8.693 3.07065 4.55682 28.58 1477.44 1022.214 16.95 16.95 8.703 3.07247 4.55813 28.59 1477.49 1022.222 17.25 17.25 8.714 3.07356 4.55831 28.59 1477.54 1022.224 17.55 17.54 8.724 3.07616 4.56080 28.61 1477.61 1022.238 17.85 17.84 8.725 3.08184 4.56910 28.67 1477.69 1022.285 18.15 18.14 8.720 3.08420 4.57321 28.69 1477.71 1022.308 18.45 18.44 8.722 3.08273 4.57080 28.68 1477.70 1022.297 18.75 18.74 8.709 3.08302 4.57305 28.69 1477.67 1022.311 19.05 19.04 8.688 3.08262 4.57523 28.70 1477.61 1022.325 19.35 19.34 8.669 3.08018 4.57415 28.69 1477.54 1022.321 19.65 19.64 8.652 3.07900 4.57472 28.69 1477.48 1022.326 19.95 19.94 8.634 3.07917 4.57743 28.71 1477.43 1022.342 20.25 20.24 8.616 3.07823 4.57846 28.71 1477.38 1022.350 20.55 20.54 8.604 3.07727 4.57871 28.71 1477.34 1022.353 20.85 20.83 8.591 3.07687 4.57988 28.72 1477.30 1022.361 21.15 21.13 8.583 3.07654 4.58055 28.72 1477.28 1022.367 21.45 21.43 8.575 3.07637 4.58139 28.73 1477.26 1022.373 21.75 21.73 8.564 3.07539 4.58133 28.73 1477.22 1022.374 22.05 22.03 8.556 3.07484 4.58163 28.73 1477.19 1022.377 22.35 22.33 8.548 3.07414 4.58166 28.73 1477.17 1022.379 22.65 22.63 8.533 3.07377 4.58314 28.74 1477.13 1022.389 22.95 22.93 8.526 3.07293 4.58292 28.73 1477.10 1022.389 23.25 23.23 8.516 3.07324 4.58469 28.74 1477.08 1022.401 23.55 23.53 8.508 3.07811 4.59316 28.80 1477.12 1022.448 23.85 23.83 8.502 3.07929 4.59564 28.82 1477.13 1022.463 24.15 24.12 8.499 3.08004 4.59720 28.83 1477.13 1022.473 24.45 24.42 8.501 3.08278 4.60103 28.85 1477.18 1022.495 24.75 24.72 8.503 3.08506 4.60409 28.88 1477.22 1022.513 25.05 25.02 8.509 3.08742 4.60689 28.90 1477.27 1022.529 25.35 25.32 8.517 3.09162 4.61200 28.93 1477.35 1022.558 25.65 25.62 8.524 3.09507 4.61624 28.96 1477.42 1022.582 25.95 25.92 8.532 3.09957 4.62181 29.00 1477.50 1022.613 26.25 26.22 8.542 3.10493 4.62838 29.05 1477.60 1022.649 26.55 26.52 8.559 3.10635 4.62824 29.05 1477.67 1022.649 26.85 26.82 8.567 3.11109 4.63419 29.09 1477.76 1022.682 27.15 27.12 8.575 3.11452 4.63815 29.12 1477.83 1022.705 27.45 27.41 8.582 3.11644 4.63999 29.13 1477.88 1022.716 27.75 27.71 8.590 3.11698 4.63975 29.13 1477.91 1022.716 28.05 28.01 8.590 3.11798 4.64117 29.14 1477.93 1022.725 28.35 28.31 8.588 3.12326 4.64937 29.20 1478.00 1022.771 28.65 28.61 8.599 3.12812 4.65512 29.24 1478.09 1022.803 28.95 28.91 8.618 3.13545 4.66339 29.30 1478.24 1022.848 29.25 29.21 8.634 3.13915 4.66659 29.33 1478.34 1022.866 29.55 29.51 8.643 3.13900 4.66519 29.32 1478.37 1022.859 29.85 29.81 8.638 3.13928 4.66626 29.32 1478.36 1022.867 30.15 30.11 8.627 3.14338 4.67384 29.37 1478.39 1022.910 30.45 30.40 8.630 3.14474 4.67554 29.39 1478.42 1022.920 30.66 30.61 8.636 3.14370 4.67317 29.37 1478.43 1022.908