*2026/01/16 09:47:05.28 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2023/12/01 22:21:58.000 END TIME : UTC 2023/12/01 22:22:21.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 118 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 35.36 2 Depth metres 0.15 35.42 3 Temperature 'deg C (ITS90)' 9.992 13.117 4 Conductivity S/m 1.78122 3.24923 5 Conductance:Specific S/m 2.54515 4.29638 6 Salinity PSS-78 15.18 27.18 7 Speed:Sound m/s 1465.79 1490.89 8 Density kg/m^3 1011.525 1020.535 $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 : 2023-031 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 8.21480 N ! (deg min) LONGITUDE : 125 41.63860 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20231201_222158 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/15 13:40:53 118 118 MERGEHDR 1.3 2026/01/15 13:41:48 118 118 HDREDIT2 3.2 2026/01/15 14:00:57 ? ? REMOVECH 8.2 2026/01/15 14:01:18 118 118 CALIB 12.1 2026/01/16 09:46:09 118 118 CLEAN 5.3 2026/01/16 09:47:05 118 118 $END $REMARKS -HEADER EDITS: 2026/01/15 14:00:57 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 2026/01/15 14:01:18 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:46:09 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 09:47:01 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 9.992 1.78122 2.54515 15.18 1465.79 1011.525 0.45 0.45 10.059 1.79019 2.55308 15.23 1466.12 1011.561 0.75 0.76 10.691 1.98238 2.77713 16.73 1470.30 1012.641 1.05 1.06 11.083 2.16863 3.00504 18.26 1473.59 1013.770 1.35 1.36 11.282 2.34527 3.23201 19.79 1476.14 1014.924 1.65 1.66 11.515 2.59968 3.55976 22.01 1479.65 1016.613 1.95 1.96 11.853 2.70591 3.67120 22.79 1481.80 1017.165 2.25 2.26 12.091 2.78665 3.75653 23.39 1483.35 1017.591 2.55 2.57 12.298 2.86082 3.83504 23.95 1484.74 1017.984 2.85 2.87 12.611 2.90799 3.86588 24.18 1486.12 1018.112 3.15 3.17 12.849 2.93373 3.87555 24.26 1487.04 1018.135 3.45 3.47 12.930 2.97973 3.92798 24.63 1487.76 1018.406 3.75 3.77 12.989 3.00509 3.95521 24.82 1488.19 1018.545 4.05 4.07 13.084 3.02784 3.97523 24.97 1488.69 1018.641 4.35 4.37 13.117 3.03350 3.97921 25.00 1488.85 1018.659 4.65 4.67 13.105 3.03444 3.98165 25.02 1488.83 1018.675 4.95 4.97 13.079 3.03655 3.98720 25.05 1488.79 1018.709 5.25 5.27 13.044 3.04019 3.99567 25.11 1488.74 1018.761 5.55 5.57 13.014 3.04289 4.00233 25.15 1488.69 1018.801 5.85 5.87 12.944 3.04557 4.01328 25.22 1488.54 1018.870 6.15 6.17 12.871 3.04658 4.02231 25.28 1488.37 1018.929 6.45 6.47 12.803 3.04744 4.03072 25.33 1488.20 1018.984 6.75 6.78 12.780 3.04697 4.03255 25.34 1488.14 1018.998 7.05 7.08 12.727 3.04482 4.03533 25.36 1487.98 1019.021 7.35 7.38 12.672 3.04496 4.04142 25.40 1487.84 1019.061 7.65 7.68 12.634 3.04443 4.04474 25.42 1487.74 1019.085 7.95 7.98 12.596 3.04501 4.04959 25.45 1487.65 1019.117 8.25 8.28 12.554 3.04536 4.05464 25.48 1487.54 1019.150 8.55 8.58 12.525 3.04523 4.05754 25.50 1487.47 1019.171 8.85 8.88 12.514 3.04192 4.05443 25.48 1487.41 1019.157 9.15 9.18 12.446 3.04198 4.06187 25.52 1487.23 1019.206 9.45 9.48 12.376 3.04425 4.07250 25.59 1487.08 1019.273 9.75 9.78 12.331 3.04275 4.07536 25.61 1486.94 1019.294 10.05 10.08 12.267 3.04160 4.08078 25.64 1486.77 1019.332 10.35 10.38 12.225 3.04838 4.09450 25.73 1486.73 1019.412 10.65 10.68 12.227 3.05462 4.10272 25.79 1486.81 1019.457 10.95 10.98 12.244 3.06269 4.11165 25.85 1486.95 1019.504 11.25 11.28 12.242 3.07481 4.12812 25.97 1487.09 1019.594 11.55 11.58 12.264 3.07895 4.13125 25.99 1487.19 1019.610 11.85 11.88 12.287 3.08090 4.13130 25.99 1487.28 1019.609 12.15 12.18 12.288 3.08149 4.13205 26.00 1487.29 1019.614 12.45 12.48 12.290 3.08504 4.13660 26.03 1487.34 1019.640 12.75 12.78 12.298 3.08765 4.13920 26.05 1487.40 1019.654 13.05 13.09 12.286 3.08848 4.14166 26.06 1487.38 1019.670 13.35 13.39 12.285 3.09090 4.14494 26.09 1487.41 1019.689 13.65 13.69 12.292 3.09094 4.14420 26.08 1487.44 1019.685 13.95 13.99 12.296 3.09203 4.14525 26.09 1487.46 1019.692 14.25 14.29 12.299 3.09247 4.14556 26.09 1487.48 1019.694 14.55 14.59 12.300 3.09290 4.14597 26.09 1487.49 1019.698 14.85 14.89 12.307 3.09564 4.14890 26.11 1487.54 1019.714 15.15 15.19 12.349 3.09851 4.14808 26.11 1487.69 1019.706 15.45 15.49 12.395 3.10489 4.15153 26.14 1487.89 1019.720 15.75 15.79 12.471 3.11491 4.15638 26.18 1488.21 1019.739 16.05 16.09 12.516 3.12724 4.16787 26.26 1488.47 1019.796 16.35 16.39 12.542 3.14345 4.18658 26.39 1488.72 1019.895 16.65 16.69 12.603 3.14815 4.18604 26.40 1488.93 1019.886 16.95 16.99 12.652 3.14915 4.18193 26.37 1489.08 1019.859 17.25 17.29 12.687 3.15118 4.18075 26.36 1489.20 1019.850 17.55 17.59 12.705 3.15411 4.18257 26.38 1489.28 1019.859 17.85 17.89 12.698 3.16036 4.19163 26.44 1489.34 1019.910 18.15 18.19 12.688 3.16584 4.20006 26.50 1489.37 1019.958 18.45 18.49 12.676 3.16532 4.20076 26.50 1489.34 1019.964 18.75 18.79 12.635 3.16374 4.20315 26.52 1489.22 1019.983 19.05 19.09 12.581 3.16157 4.20629 26.53 1489.06 1020.008 19.35 19.39 12.514 3.15688 4.20759 26.54 1488.84 1020.024 19.65 19.69 12.456 3.14938 4.20415 26.51 1488.61 1020.014 19.95 19.99 12.421 3.14739 4.20535 26.51 1488.50 1020.026 20.25 20.29 12.413 3.14554 4.20375 26.50 1488.46 1020.020 20.55 20.59 12.402 3.14573 4.20527 26.51 1488.44 1020.030 20.85 20.89 12.399 3.14726 4.20764 26.53 1488.46 1020.045 21.15 21.19 12.405 3.15001 4.21063 26.55 1488.51 1020.061 21.45 21.49 12.423 3.15134 4.21041 26.55 1488.57 1020.060 21.75 21.79 12.435 3.15237 4.21044 26.55 1488.62 1020.060 22.05 22.09 12.448 3.15391 4.21101 26.56 1488.68 1020.062 22.35 22.39 12.450 3.15520 4.21254 26.57 1488.70 1020.072 22.65 22.70 12.457 3.15512 4.21166 26.56 1488.72 1020.067 22.95 23.00 12.451 3.15565 4.21304 26.57 1488.72 1020.077 23.25 23.30 12.449 3.15616 4.21394 26.58 1488.72 1020.083 23.55 23.60 12.461 3.15712 4.21384 26.58 1488.77 1020.082 23.85 23.90 12.464 3.15836 4.21521 26.59 1488.80 1020.091 24.15 24.20 12.465 3.15939 4.21641 26.59 1488.82 1020.098 24.45 24.50 12.467 3.15909 4.21586 26.59 1488.82 1020.096 24.75 24.80 12.467 3.15950 4.21632 26.59 1488.83 1020.100 25.05 25.10 12.468 3.15921 4.21587 26.59 1488.84 1020.099 25.35 25.40 12.474 3.16024 4.21663 26.60 1488.87 1020.104 25.65 25.70 12.475 3.16208 4.21887 26.61 1488.90 1020.117 25.95 26.00 12.480 3.16297 4.21954 26.62 1488.92 1020.121 26.25 26.30 12.491 3.16501 4.22101 26.63 1488.98 1020.129 26.55 26.60 12.509 3.16817 4.22318 26.64 1489.07 1020.140 26.85 26.90 12.520 3.17104 4.22576 26.66 1489.13 1020.154 27.15 27.20 12.525 3.17298 4.22784 26.68 1489.17 1020.166 27.45 27.50 12.527 3.17788 4.23414 26.72 1489.23 1020.201 27.75 27.80 12.527 3.17862 4.23507 26.73 1489.25 1020.207 28.05 28.10 12.537 3.17856 4.23385 26.72 1489.28 1020.200 28.35 28.40 12.538 3.17958 4.23511 26.73 1489.30 1020.208 28.65 28.70 12.532 3.18117 4.23798 26.75 1489.30 1020.226 28.95 29.00 12.548 3.18381 4.23968 26.76 1489.38 1020.234 29.25 29.30 12.551 3.18452 4.24028 26.77 1489.40 1020.239 29.55 29.60 12.555 3.18764 4.24394 26.79 1489.45 1020.259 29.85 29.90 12.576 3.19116 4.24628 26.81 1489.55 1020.270 30.15 30.20 12.591 3.19428 4.24874 26.83 1489.62 1020.283 30.45 30.50 12.587 3.19503 4.25023 26.84 1489.63 1020.293 30.75 30.80 12.610 3.19656 4.24963 26.83 1489.71 1020.288 31.05 31.10 12.640 3.20309 4.25488 26.87 1489.86 1020.314 31.35 31.40 12.692 3.20863 4.25637 26.89 1490.06 1020.317 31.65 31.70 12.717 3.21585 4.26308 26.94 1490.21 1020.352 31.95 32.00 12.763 3.22195 4.26603 26.96 1490.40 1020.363 32.25 32.30 12.805 3.22344 4.26326 26.94 1490.53 1020.344 32.55 32.60 12.822 3.22393 4.26200 26.94 1490.59 1020.337 32.85 32.90 12.809 3.21927 4.25731 26.90 1490.51 1020.314 33.15 33.20 12.738 3.21070 4.25388 26.87 1490.24 1020.306 33.45 33.50 12.673 3.21179 4.26275 26.93 1490.08 1020.363 33.75 33.80 12.667 3.21369 4.26592 26.95 1490.09 1020.382 34.05 34.10 12.672 3.21441 4.26630 26.95 1490.12 1020.385 34.35 34.40 12.684 3.21845 4.27034 26.98 1490.20 1020.406 34.65 34.70 12.727 3.22777 4.27785 27.04 1490.42 1020.443 34.95 35.00 12.776 3.23706 4.28458 27.09 1490.65 1020.474 35.36 35.42 12.814 3.24923 4.29638 27.18 1490.89 1020.535