*2026/01/16 09:47:05.10 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2023/12/01 20:42:40.000 END TIME : UTC 2023/12/01 20:42:56.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 81 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 24.06 2 Depth metres 0.15 24.04 3 Temperature 'deg C (ITS90)' 10.886 11.789 4 Conductivity S/m 2.72439 3.16202 5 Conductance:Specific S/m 3.79535 4.30683 6 Salinity PSS-78 23.57 27.16 7 Speed:Sound m/s 1479.24 1486.85 8 Density kg/m^3 1017.912 1020.668 $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 : 96 LATITUDE : 49 11.41400 N ! (deg min) LONGITUDE : 125 46.32270 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20231201_204240 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/15 13:40:52 81 81 MERGEHDR 1.3 2026/01/15 13:41:48 81 81 HDREDIT2 3.2 2026/01/15 14:00:57 ? ? REMOVECH 8.2 2026/01/15 14:01:18 81 81 CALIB 12.1 2026/01/16 09:46:09 81 81 CLEAN 5.3 2026/01/16 09:47:05 81 81 $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 10.891 2.72439 3.79535 23.57 1479.24 1017.912 0.45 0.45 10.886 2.73945 3.81687 23.72 1479.40 1018.028 0.75 0.75 11.059 2.82848 3.92201 24.45 1480.91 1018.571 1.05 1.05 11.042 2.85244 3.95713 24.69 1481.14 1018.761 1.35 1.35 11.086 2.85838 3.96055 24.72 1481.34 1018.777 1.65 1.65 11.169 2.92918 4.04928 25.34 1482.38 1019.244 1.95 1.95 11.376 2.96588 4.07669 25.54 1483.37 1019.372 2.25 2.25 11.503 3.00891 4.12147 25.86 1484.21 1019.600 2.55 2.55 11.554 3.01437 4.12312 25.88 1484.42 1019.605 2.85 2.85 11.564 3.01267 4.11969 25.86 1484.43 1019.587 3.15 3.15 11.564 3.03158 4.14557 26.04 1484.65 1019.727 3.45 3.45 11.555 3.04786 4.16885 26.20 1484.82 1019.855 3.75 3.75 11.611 3.07353 4.19755 26.40 1485.26 1020.004 4.05 4.05 11.692 3.08045 4.19768 26.41 1485.56 1019.998 4.35 4.35 11.722 3.08369 4.19865 26.42 1485.69 1020.001 4.65 4.65 11.733 3.08423 4.19818 26.41 1485.72 1019.999 4.95 4.95 11.737 3.08487 4.19861 26.42 1485.75 1020.002 5.25 5.25 11.733 3.08426 4.19824 26.41 1485.73 1020.002 5.55 5.55 11.731 3.08620 4.20108 26.43 1485.76 1020.019 5.85 5.85 11.739 3.08722 4.20161 26.44 1485.79 1020.022 6.15 6.15 11.744 3.08802 4.20209 26.44 1485.82 1020.025 6.45 6.45 11.744 3.08808 4.20209 26.44 1485.83 1020.027 6.75 6.75 11.743 3.08851 4.20286 26.45 1485.83 1020.032 7.05 7.05 11.732 3.08902 4.20478 26.46 1485.81 1020.045 7.35 7.35 11.726 3.09038 4.20736 26.48 1485.82 1020.061 7.65 7.65 11.734 3.09610 4.21422 26.52 1485.91 1020.098 7.95 7.95 11.737 3.10113 4.22073 26.57 1485.98 1020.134 8.25 8.25 11.760 3.11196 4.23281 26.66 1486.17 1020.198 8.55 8.55 11.775 3.11363 4.23340 26.66 1486.23 1020.201 8.85 8.85 11.778 3.11599 4.23619 26.68 1486.27 1020.217 9.15 9.15 11.773 3.11738 4.23871 26.70 1486.28 1020.232 9.45 9.45 11.782 3.12106 4.24270 26.73 1486.35 1020.254 9.75 9.75 11.789 3.12322 4.24482 26.74 1486.39 1020.266 10.05 10.05 11.781 3.12460 4.24752 26.76 1486.40 1020.283 10.35 10.35 11.784 3.12553 4.24844 26.77 1486.42 1020.289 10.65 10.65 11.784 3.12563 4.24860 26.77 1486.42 1020.291 10.95 10.95 11.778 3.12713 4.25141 26.79 1486.43 1020.308 11.25 11.25 11.775 3.12847 4.25351 26.80 1486.44 1020.321 11.55 11.55 11.779 3.13072 4.25618 26.82 1486.48 1020.336 11.85 11.84 11.776 3.13255 4.25897 26.84 1486.50 1020.353 12.15 12.14 11.773 3.13398 4.26128 26.85 1486.51 1020.367 12.45 12.44 11.775 3.13451 4.26178 26.86 1486.53 1020.371 12.75 12.74 11.775 3.13521 4.26274 26.86 1486.54 1020.377 13.05 13.04 11.778 3.13596 4.26335 26.87 1486.56 1020.381 13.35 13.34 11.779 3.13591 4.26324 26.87 1486.57 1020.382 13.65 13.64 11.776 3.13731 4.26541 26.88 1486.58 1020.395 13.95 13.94 11.774 3.13821 4.26684 26.89 1486.59 1020.404 14.25 14.24 11.778 3.14045 4.26947 26.91 1486.63 1020.419 14.55 14.54 11.778 3.14350 4.27359 26.94 1486.67 1020.443 14.85 14.84 11.779 3.14415 4.27435 26.94 1486.69 1020.448 15.15 15.14 11.783 3.14479 4.27484 26.95 1486.71 1020.452 15.45 15.44 11.782 3.14525 4.27557 26.95 1486.72 1020.457 15.75 15.74 11.780 3.14495 4.27535 26.95 1486.71 1020.457 16.05 16.04 11.773 3.14495 4.27621 26.96 1486.70 1020.464 16.35 16.34 11.774 3.14581 4.27723 26.96 1486.72 1020.471 16.65 16.64 11.776 3.14756 4.27933 26.98 1486.75 1020.483 16.95 16.94 11.775 3.14895 4.28134 26.99 1486.76 1020.495 17.25 17.24 11.777 3.14895 4.28117 26.99 1486.77 1020.495 17.55 17.54 11.774 3.14891 4.28147 26.99 1486.77 1020.499 17.85 17.84 11.770 3.14913 4.28218 27.00 1486.77 1020.504 18.15 18.14 11.776 3.14944 4.28198 27.00 1486.79 1020.504 18.45 18.44 11.773 3.15002 4.28303 27.00 1486.80 1020.511 18.75 18.74 11.767 3.15019 4.28400 27.01 1486.78 1020.518 19.05 19.04 11.764 3.15089 4.28529 27.02 1486.79 1020.527 19.35 19.34 11.766 3.15161 4.28606 27.02 1486.81 1020.532 19.65 19.64 11.760 3.15273 4.28825 27.04 1486.81 1020.546 19.95 19.94 11.755 3.15311 4.28941 27.05 1486.80 1020.554 20.25 20.24 11.742 3.15495 4.29340 27.07 1486.80 1020.578 20.55 20.54 11.736 3.15649 4.29617 27.09 1486.80 1020.595 20.85 20.84 11.730 3.15782 4.29868 27.11 1486.81 1020.610 21.15 21.13 11.727 3.15883 4.30043 27.12 1486.82 1020.621 21.45 21.43 11.722 3.16050 4.30333 27.14 1486.82 1020.639 21.75 21.73 11.717 3.16082 4.30432 27.15 1486.82 1020.646 22.05 22.03 11.719 3.16101 4.30437 27.15 1486.83 1020.647 22.35 22.33 11.710 3.16146 4.30605 27.16 1486.82 1020.659 22.65 22.63 11.707 3.16178 4.30683 27.16 1486.82 1020.664 22.95 22.93 11.711 3.16202 4.30663 27.16 1486.84 1020.664 23.25 23.23 11.706 3.16151 4.30651 27.16 1486.82 1020.665 23.55 23.53 11.714 3.16163 4.30581 27.15 1486.85 1020.662 23.85 23.83 11.703 3.16123 4.30646 27.16 1486.82 1020.668 24.06 24.04 11.709 3.16150 4.30621 27.16 1486.84 1020.667