*2026/01/16 09:57:48.25 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/02/16 18:30:05.000 END TIME : UTC 2024/02/16 18:30:18.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 68 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 20.34 2 Depth metres 0.15 20.28 3 Temperature 'deg C (ITS90)' 7.794 9.692 4 Conductivity S/m 2.36196 3.26098 5 Conductance:Specific S/m 3.60116 4.71625 6 Salinity PSS-78 21.97 29.8 7 Speed:Sound m/s 1465.57 1482.27 8 Density kg/m^3 1017.087 1023.053 $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 : 2024-087 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 62 LATITUDE : 49 3.40810 N ! (deg min) LONGITUDE : 124 50.40250 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240216_183005 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:56 68 68 MERGEHDR 1.3 2026/01/16 09:53:48 68 68 HDREDIT2 3.2 2026/01/16 09:55:02 ? ? REMOVECH 8.2 2026/01/16 09:56:14 68 68 CALIB 12.1 2026/01/16 09:56:46 68 68 CLEAN 5.3 2026/01/16 09:57:48 68 68 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:02 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 09:56:14 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:46 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 09:57:46 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 7.794 2.36196 3.60116 21.97 1465.57 1017.087 0.45 0.45 8.294 2.41077 3.62045 22.15 1467.75 1017.170 0.75 0.75 8.653 2.53005 3.75901 23.12 1470.34 1017.883 1.05 1.05 8.840 2.70504 3.99684 24.75 1473.05 1019.134 1.35 1.35 8.931 2.78096 4.09803 25.45 1474.26 1019.670 1.65 1.65 9.066 2.84119 4.17015 25.96 1475.40 1020.050 1.95 1.95 9.135 2.93510 4.29931 26.86 1476.76 1020.740 2.25 2.25 9.285 2.98167 4.34834 27.21 1477.76 1020.997 2.55 2.55 9.499 3.03355 4.39659 27.57 1479.00 1021.246 2.85 2.85 9.569 3.08195 4.45767 28.00 1479.79 1021.573 3.15 3.15 9.611 3.13041 4.52234 28.46 1480.50 1021.923 3.45 3.45 9.677 3.14330 4.53229 28.53 1480.84 1021.974 3.75 3.75 9.692 3.15969 4.55395 28.69 1481.09 1022.092 4.05 4.05 9.689 3.16495 4.56193 28.74 1481.15 1022.137 4.35 4.35 9.685 3.17032 4.57013 28.80 1481.21 1022.183 4.65 4.65 9.681 3.17348 4.57522 28.83 1481.24 1022.212 4.95 4.94 9.675 3.17581 4.57935 28.86 1481.26 1022.236 5.25 5.24 9.656 3.18264 4.59172 28.94 1481.30 1022.306 5.55 5.54 9.644 3.18605 4.59821 28.99 1481.31 1022.343 5.85 5.84 9.641 3.18757 4.60086 29.01 1481.32 1022.359 6.15 6.14 9.633 3.18968 4.60496 29.03 1481.33 1022.383 6.45 6.44 9.623 3.19027 4.60717 29.05 1481.32 1022.397 6.75 6.74 9.616 3.19182 4.61034 29.07 1481.32 1022.416 7.05 7.04 9.609 3.19306 4.61299 29.09 1481.32 1022.432 7.35 7.34 9.603 3.19439 4.61572 29.10 1481.33 1022.448 7.65 7.64 9.597 3.19709 4.62042 29.14 1481.35 1022.476 7.95 7.94 9.594 3.19784 4.62195 29.15 1481.36 1022.485 8.25 8.23 9.591 3.19877 4.62373 29.16 1481.36 1022.496 8.55 8.53 9.589 3.20013 4.62592 29.17 1481.38 1022.510 8.85 8.83 9.586 3.20131 4.62802 29.19 1481.39 1022.523 9.15 9.13 9.584 3.20141 4.62841 29.19 1481.39 1022.526 9.45 9.43 9.582 3.20152 4.62891 29.19 1481.39 1022.530 9.75 9.73 9.580 3.20203 4.62985 29.20 1481.40 1022.537 10.05 10.03 9.578 3.20243 4.63071 29.20 1481.40 1022.543 10.35 10.33 9.574 3.20377 4.63314 29.22 1481.41 1022.558 10.65 10.63 9.573 3.20587 4.63638 29.24 1481.44 1022.577 10.95 10.93 9.571 3.20820 4.64006 29.27 1481.47 1022.598 11.25 11.23 9.570 3.21010 4.64286 29.29 1481.50 1022.615 11.55 11.52 9.568 3.21081 4.64414 29.30 1481.50 1022.623 11.85 11.82 9.566 3.21133 4.64522 29.30 1481.51 1022.630 12.15 12.12 9.560 3.21281 4.64816 29.32 1481.52 1022.648 12.45 12.42 9.556 3.21412 4.65061 29.34 1481.53 1022.663 12.75 12.72 9.555 3.21704 4.65490 29.37 1481.56 1022.687 13.05 13.02 9.554 3.21798 4.65639 29.38 1481.58 1022.697 13.35 13.32 9.553 3.21908 4.65813 29.39 1481.59 1022.708 13.65 13.62 9.553 3.21982 4.65930 29.40 1481.61 1022.715 13.95 13.92 9.551 3.22102 4.66120 29.41 1481.62 1022.727 14.25 14.22 9.552 3.22360 4.66491 29.44 1481.66 1022.749 14.55 14.51 9.551 3.22457 4.66639 29.45 1481.67 1022.758 14.85 14.81 9.550 3.22665 4.66947 29.47 1481.70 1022.776 15.15 15.11 9.549 3.22819 4.67186 29.49 1481.72 1022.790 15.45 15.41 9.549 3.23131 4.67640 29.52 1481.77 1022.816 15.75 15.71 9.550 3.23487 4.68138 29.55 1481.82 1022.845 16.05 16.01 9.551 3.23706 4.68444 29.57 1481.85 1022.863 16.35 16.31 9.552 3.23991 4.68843 29.60 1481.89 1022.886 16.65 16.61 9.555 3.24570 4.69646 29.66 1481.98 1022.931 16.95 16.91 9.559 3.25024 4.70249 29.70 1482.05 1022.965 17.25 17.21 9.560 3.25121 4.70368 29.71 1482.07 1022.972 17.55 17.50 9.562 3.25231 4.70499 29.72 1482.09 1022.981 17.85 17.80 9.565 3.25482 4.70828 29.74 1482.14 1023.000 18.15 18.10 9.566 3.25434 4.70736 29.74 1482.14 1022.996 18.45 18.40 9.567 3.25421 4.70705 29.73 1482.15 1022.995 18.75 18.70 9.566 3.25401 4.70694 29.73 1482.14 1022.996 19.05 19.00 9.566 3.25470 4.70796 29.74 1482.16 1023.003 19.35 19.30 9.566 3.25578 4.70951 29.75 1482.17 1023.013 19.65 19.60 9.567 3.25602 4.70970 29.75 1482.19 1023.015 19.95 19.90 9.568 3.25682 4.71071 29.76 1482.20 1023.022 20.34 20.28 9.572 3.26098 4.71625 29.80 1482.27 1023.053