*2026/01/16 09:57:47.40 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/01/31 19:44:27.000 END TIME : UTC 2024/01/31 19:44:53.800 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 40.35 2 Depth metres 0.15 40.2 3 Temperature 'deg C (ITS90)' 9.146 9.865 4 Conductivity S/m 1.86642 3.42702 5 Conductance:Specific S/m 2.73302 4.91465 6 Salinity PSS-78 16.35 31.22 7 Speed:Sound m/s 1463.96 1485.41 8 Density kg/m^3 1012.541 1024.207 $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 : 28 LATITUDE : 49 53.01700 N ! (deg min) LONGITUDE : 126 48.05240 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240131_194427 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:54 135 135 MERGEHDR 1.3 2026/01/16 09:53:45 135 135 HDREDIT2 3.2 2026/01/16 09:55:00 ? ? REMOVECH 8.2 2026/01/16 09:56:13 135 135 CALIB 12.1 2026/01/16 09:56:45 135 135 CLEAN 5.3 2026/01/16 09:57:47 135 135 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:00 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 09:56:13 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:45 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 9.146 1.86642 2.73302 16.35 1463.96 1012.541 0.45 0.45 9.515 2.11801 3.06825 18.58 1468.09 1014.229 0.75 0.75 9.605 2.32773 3.36330 20.55 1470.83 1015.751 1.05 1.05 9.611 2.51930 3.63946 22.40 1473.11 1017.197 1.35 1.36 9.634 2.64608 3.82006 23.63 1474.69 1018.150 1.65 1.66 9.654 2.74687 3.96327 24.61 1475.96 1018.910 1.95 1.96 9.666 2.79327 4.02888 25.06 1476.55 1019.260 2.25 2.26 9.671 2.83343 4.08614 25.45 1477.05 1019.566 2.55 2.56 9.681 2.94717 4.24902 26.57 1478.46 1020.440 2.85 2.85 9.692 3.03268 4.37088 27.41 1479.53 1021.097 3.15 3.15 9.705 3.09021 4.45209 27.98 1480.27 1021.536 3.45 3.45 9.710 3.13591 4.51734 28.43 1480.84 1021.891 3.75 3.75 9.709 3.15037 4.53821 28.58 1481.02 1022.005 4.05 4.05 9.704 3.16463 4.55946 28.72 1481.19 1022.122 4.35 4.35 9.689 3.18035 4.58402 28.89 1481.34 1022.258 4.65 4.65 9.664 3.19640 4.61052 29.08 1481.48 1022.405 4.95 4.95 9.652 3.21083 4.63300 29.23 1481.62 1022.529 5.25 5.25 9.644 3.21930 4.64629 29.32 1481.71 1022.603 5.55 5.55 9.632 3.22238 4.65235 29.36 1481.72 1022.638 5.85 5.85 9.622 3.22436 4.65646 29.39 1481.72 1022.663 6.15 6.15 9.611 3.22712 4.66193 29.43 1481.73 1022.694 6.45 6.44 9.587 3.24223 4.68699 29.60 1481.86 1022.834 6.75 6.74 9.564 3.26445 4.72228 29.84 1482.08 1023.029 7.05 7.04 9.540 3.27508 4.74098 29.97 1482.15 1023.134 7.35 7.34 9.499 3.28974 4.76789 30.15 1482.22 1023.284 7.65 7.64 9.461 3.30077 4.78907 30.30 1482.27 1023.404 7.95 7.94 9.457 3.30214 4.79167 30.32 1482.28 1023.419 8.25 8.24 9.455 3.30182 4.79155 30.31 1482.27 1023.420 8.55 8.54 9.447 3.30368 4.79531 30.34 1482.28 1023.442 8.85 8.84 9.441 3.30702 4.80101 30.38 1482.31 1023.475 9.15 9.13 9.438 3.30716 4.80160 30.38 1482.31 1023.480 9.45 9.43 9.435 3.30835 4.80372 30.40 1482.32 1023.493 9.75 9.73 9.433 3.30824 4.80384 30.40 1482.32 1023.495 10.05 10.03 9.429 3.30935 4.80609 30.41 1482.32 1023.509 10.35 10.33 9.427 3.30958 4.80672 30.42 1482.33 1023.513 10.65 10.63 9.423 3.30960 4.80730 30.42 1482.32 1023.518 10.95 10.93 9.421 3.31021 4.80841 30.43 1482.33 1023.526 11.25 11.23 9.420 3.31051 4.80903 30.43 1482.33 1023.530 11.55 11.52 9.419 3.31045 4.80904 30.43 1482.34 1023.532 11.85 11.82 9.416 3.31096 4.81021 30.44 1482.34 1023.540 12.15 12.12 9.413 3.31134 4.81116 30.44 1482.34 1023.546 12.45 12.42 9.411 3.31274 4.81352 30.46 1482.36 1023.561 12.75 12.72 9.406 3.31361 4.81541 30.47 1482.36 1023.572 13.05 13.02 9.402 3.31393 4.81650 30.48 1482.36 1023.580 13.35 13.32 9.398 3.31396 4.81710 30.48 1482.35 1023.585 13.65 13.62 9.396 3.31430 4.81789 30.49 1482.36 1023.590 13.95 13.91 9.392 3.31525 4.81983 30.50 1482.36 1023.602 14.25 14.21 9.386 3.31739 4.82378 30.53 1482.38 1023.626 14.55 14.51 9.383 3.31715 4.82381 30.53 1482.37 1023.627 14.85 14.81 9.370 3.32035 4.83037 30.57 1482.38 1023.665 15.15 15.11 9.362 3.32354 4.83604 30.61 1482.41 1023.698 15.45 15.41 9.351 3.32496 4.83965 30.64 1482.40 1023.719 15.75 15.71 9.346 3.32563 4.84130 30.65 1482.40 1023.730 16.05 16.01 9.342 3.32558 4.84179 30.65 1482.39 1023.734 16.35 16.30 9.341 3.32698 4.84408 30.66 1482.41 1023.748 16.65 16.60 9.340 3.32726 4.84456 30.67 1482.42 1023.752 16.95 16.90 9.341 3.32762 4.84502 30.67 1482.43 1023.756 17.25 17.20 9.341 3.32843 4.84614 30.68 1482.44 1023.763 17.55 17.50 9.342 3.32929 4.84721 30.69 1482.46 1023.770 17.85 17.80 9.343 3.32948 4.84732 30.69 1482.47 1023.772 18.15 18.10 9.344 3.33171 4.85051 30.71 1482.51 1023.791 18.45 18.39 9.346 3.33195 4.85058 30.71 1482.52 1023.792 18.75 18.69 9.348 3.33229 4.85074 30.71 1482.54 1023.794 19.05 18.99 9.349 3.33274 4.85124 30.71 1482.55 1023.798 19.35 19.29 9.349 3.33284 4.85138 30.72 1482.55 1023.800 19.65 19.59 9.349 3.33341 4.85224 30.72 1482.57 1023.806 19.95 19.89 9.350 3.33330 4.85198 30.72 1482.57 1023.806 20.25 20.19 9.350 3.33409 4.85315 30.73 1482.59 1023.814 20.55 20.49 9.350 3.33455 4.85378 30.73 1482.60 1023.819 20.85 20.78 9.350 3.33505 4.85457 30.74 1482.61 1023.824 21.15 21.08 9.348 3.33496 4.85468 30.74 1482.61 1023.826 21.45 21.38 9.348 3.33536 4.85522 30.74 1482.62 1023.830 21.75 21.68 9.348 3.33544 4.85535 30.74 1482.62 1023.832 22.05 21.98 9.348 3.33610 4.85625 30.75 1482.64 1023.839 22.35 22.28 9.350 3.33621 4.85618 30.75 1482.65 1023.839 22.65 22.58 9.350 3.33663 4.85679 30.75 1482.66 1023.844 22.95 22.88 9.349 3.33638 4.85666 30.75 1482.65 1023.845 23.25 23.17 9.346 3.33655 4.85724 30.75 1482.65 1023.849 23.55 23.47 9.348 3.33778 4.85874 30.77 1482.68 1023.859 23.85 23.77 9.351 3.33788 4.85855 30.76 1482.69 1023.859 24.15 24.07 9.350 3.33916 4.86049 30.78 1482.71 1023.871 24.45 24.37 9.353 3.34007 4.86136 30.78 1482.74 1023.876 24.75 24.67 9.356 3.34001 4.86090 30.78 1482.75 1023.875 25.05 24.97 9.360 3.34138 4.86237 30.79 1482.78 1023.884 25.35 25.26 9.363 3.34200 4.86272 30.79 1482.80 1023.887 25.65 25.56 9.367 3.34411 4.86529 30.81 1482.84 1023.902 25.95 25.86 9.369 3.34437 4.86542 30.81 1482.85 1023.904 26.25 26.16 9.368 3.34403 4.86504 30.81 1482.85 1023.904 26.55 26.46 9.369 3.34414 4.86506 30.81 1482.86 1023.905 26.85 26.76 9.369 3.34477 4.86595 30.82 1482.87 1023.911 27.15 27.06 9.369 3.34496 4.86621 30.82 1482.88 1023.914 27.45 27.35 9.368 3.34459 4.86586 30.82 1482.88 1023.913 27.75 27.65 9.367 3.34494 4.86643 30.82 1482.89 1023.918 28.05 27.95 9.366 3.34473 4.86634 30.82 1482.89 1023.918 28.35 28.25 9.365 3.34468 4.86638 30.82 1482.89 1023.920 28.65 28.55 9.364 3.34506 4.86707 30.82 1482.89 1023.925 28.95 28.85 9.365 3.34530 4.86732 30.83 1482.90 1023.928 29.25 29.15 9.365 3.34528 4.86734 30.83 1482.91 1023.929 29.55 29.45 9.369 3.34526 4.86674 30.82 1482.92 1023.927 29.85 29.74 9.378 3.34734 4.86847 30.83 1482.98 1023.937 30.15 30.04 9.382 3.34861 4.86966 30.84 1483.01 1023.945 30.45 30.34 9.396 3.35011 4.86992 30.85 1483.07 1023.947 30.75 30.64 9.404 3.35142 4.87063 30.85 1483.11 1023.951 31.05 30.94 9.410 3.35165 4.87010 30.85 1483.14 1023.949 31.35 31.24 9.413 3.35224 4.87060 30.85 1483.16 1023.953 31.65 31.54 9.417 3.35358 4.87197 30.86 1483.19 1023.962 31.95 31.83 9.433 3.35766 4.87560 30.89 1483.29 1023.982 32.25 32.13 9.468 3.36235 4.87752 30.91 1483.44 1023.992 32.55 32.43 9.494 3.36424 4.87655 30.91 1483.54 1023.987 32.85 32.73 9.524 3.36932 4.87970 30.93 1483.68 1024.003 33.15 33.03 9.538 3.37389 4.88432 30.97 1483.78 1024.029 33.45 33.33 9.562 3.37287 4.87945 30.93 1483.84 1024.002 33.75 33.63 9.579 3.37912 4.88615 30.98 1483.96 1024.040 34.05 33.93 9.624 3.38751 4.89179 31.03 1484.19 1024.069 34.35 34.22 9.701 3.39809 4.89625 31.07 1484.53 1024.090 34.65 34.52 9.722 3.40127 4.89783 31.08 1484.63 1024.099 34.95 34.82 9.734 3.40426 4.90049 31.10 1484.70 1024.114 35.25 35.12 9.748 3.40630 4.90143 31.11 1484.76 1024.120 35.55 35.42 9.767 3.40805 4.90122 31.11 1484.84 1024.119 35.85 35.72 9.785 3.41284 4.90557 31.15 1484.95 1024.143 36.15 36.02 9.804 3.41778 4.91003 31.18 1485.07 1024.168 36.45 36.31 9.827 3.41890 4.90840 31.17 1485.14 1024.159 36.75 36.61 9.840 3.41970 4.90773 31.17 1485.19 1024.155 37.05 36.91 9.841 3.41959 4.90740 31.17 1485.20 1024.155 37.35 37.21 9.842 3.41902 4.90651 31.16 1485.20 1024.151 37.65 37.51 9.840 3.41914 4.90699 31.16 1485.20 1024.155 37.95 37.81 9.838 3.41946 4.90773 31.17 1485.20 1024.161 38.25 38.11 9.838 3.42090 4.90966 31.18 1485.23 1024.172 38.55 38.40 9.842 3.42014 4.90811 31.17 1485.23 1024.165 38.85 38.70 9.841 3.41893 4.90646 31.16 1485.22 1024.157 39.15 39.00 9.835 3.41806 4.90603 31.15 1485.20 1024.156 39.45 39.30 9.822 3.41818 4.90807 31.17 1485.17 1024.170 39.75 39.60 9.823 3.42032 4.91099 31.19 1485.20 1024.187 40.05 39.90 9.838 3.42423 4.91446 31.21 1485.30 1024.206 40.35 40.20 9.865 3.42702 4.91465 31.22 1485.41 1024.207