*2026/01/16 10:37:44.14 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/01/22 18:20:32.000 END TIME : UTC 2025/01/22 18:20:43.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 59 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 17.5 2 Depth metres 0.15 17.45 3 Temperature 'deg C (ITS90)' 7.261 10.717 4 Conductivity S/m 1.18831 3.48422 5 Conductance:Specific S/m 1.84169 4.89072 6 Salinity PSS-78 10.57 31.15 7 Speed:Sound m/s 1449.32 1487.67 8 Density kg/m^3 1008.213 1023.923 $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 : 14 LATITUDE : 49 13.78100 N ! (deg min) LONGITUDE : 124 49.35830 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250122_182032 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:23 59 59 MERGEHDR 1.3 2026/01/16 10:35:38 59 59 HDREDIT2 3.2 2026/01/16 10:36:08 ? ? REMOVECH 8.2 2026/01/16 10:36:36 59 59 CALIB 12.1 2026/01/16 10:37:09 59 59 CLEAN 5.3 2026/01/16 10:37:44 59 59 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:08 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 10:36:36 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:09 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 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 7.261 1.18831 1.84169 10.57 1449.32 1008.213 0.45 0.45 7.523 1.32186 2.03219 11.77 1451.89 1009.134 0.75 0.76 7.862 1.39605 2.12412 12.37 1454.01 1009.571 1.05 1.06 8.956 2.55162 3.75722 23.14 1471.53 1017.859 1.35 1.36 9.391 3.00223 4.36479 27.34 1478.30 1021.076 1.65 1.66 9.622 3.11573 4.49967 28.30 1480.33 1021.793 1.95 1.96 9.901 3.23678 4.63713 29.29 1482.56 1022.523 2.25 2.26 10.105 3.29128 4.68782 29.67 1483.77 1022.787 2.55 2.56 10.240 3.32496 4.71765 29.89 1484.54 1022.942 2.85 2.85 10.286 3.33700 4.72848 29.98 1484.81 1022.999 3.15 3.15 10.331 3.34587 4.73509 30.03 1485.04 1023.033 3.45 3.45 10.398 3.35728 4.74223 30.09 1485.35 1023.068 3.75 3.75 10.454 3.36656 4.74776 30.13 1485.62 1023.096 4.05 4.05 10.494 3.37507 4.75437 30.18 1485.83 1023.130 4.35 4.35 10.526 3.38264 4.76083 30.23 1486.00 1023.164 4.65 4.65 10.555 3.39427 4.77325 30.32 1486.22 1023.231 4.95 4.95 10.579 3.40040 4.77862 30.36 1486.36 1023.260 5.25 5.25 10.599 3.40666 4.78475 30.41 1486.50 1023.294 5.55 5.54 10.620 3.41315 4.79108 30.45 1486.63 1023.328 5.85 5.84 10.634 3.41636 4.79367 30.47 1486.71 1023.342 6.15 6.14 10.654 3.42129 4.79797 30.51 1486.82 1023.366 6.45 6.44 10.672 3.42972 4.80724 30.57 1486.98 1023.416 6.75 6.74 10.697 3.43336 4.80900 30.59 1487.09 1023.425 7.05 7.04 10.711 3.43932 4.81542 30.64 1487.20 1023.461 7.35 7.34 10.713 3.44203 4.81903 30.66 1487.24 1023.482 7.65 7.64 10.717 3.44472 4.82230 30.68 1487.29 1023.500 7.95 7.94 10.717 3.44750 4.82618 30.71 1487.33 1023.523 8.25 8.23 10.711 3.45098 4.83186 30.75 1487.36 1023.556 8.55 8.53 10.706 3.45273 4.83496 30.77 1487.37 1023.575 8.85 8.83 10.704 3.45318 4.83584 30.78 1487.38 1023.581 9.15 9.13 10.696 3.45514 4.83971 30.80 1487.38 1023.604 9.45 9.43 10.689 3.45806 4.84475 30.84 1487.41 1023.634 9.75 9.73 10.687 3.46057 4.84855 30.87 1487.44 1023.656 10.05 10.03 10.688 3.46154 4.84971 30.87 1487.46 1023.664 10.35 10.33 10.686 3.46366 4.85294 30.90 1487.48 1023.683 10.65 10.62 10.684 3.46606 4.85657 30.92 1487.51 1023.704 10.95 10.92 10.685 3.46626 4.85669 30.92 1487.52 1023.706 11.25 11.22 10.685 3.46724 4.85818 30.93 1487.53 1023.715 11.55 11.52 10.683 3.46833 4.85991 30.94 1487.55 1023.726 11.85 11.82 10.681 3.46906 4.86115 30.95 1487.56 1023.734 12.15 12.12 10.668 3.46966 4.86377 30.97 1487.54 1023.751 12.45 12.42 10.664 3.47060 4.86569 30.98 1487.54 1023.763 12.75 12.72 10.655 3.47193 4.86879 31.00 1487.54 1023.782 13.05 13.01 10.649 3.47360 4.87200 31.03 1487.55 1023.802 13.35 13.31 10.646 3.47400 4.87297 31.03 1487.55 1023.809 13.65 13.61 10.644 3.47480 4.87425 31.04 1487.56 1023.817 13.95 13.91 10.644 3.47679 4.87714 31.06 1487.59 1023.834 14.25 14.21 10.643 3.47830 4.87936 31.08 1487.61 1023.848 14.55 14.51 10.642 3.47892 4.88041 31.08 1487.62 1023.855 14.85 14.81 10.641 3.47999 4.88196 31.09 1487.63 1023.865 15.15 15.10 10.641 3.48065 4.88290 31.10 1487.65 1023.871 15.45 15.40 10.636 3.48066 4.88365 31.10 1487.64 1023.877 15.75 15.70 10.632 3.48174 4.88565 31.12 1487.65 1023.890 16.05 16.00 10.633 3.48185 4.88573 31.12 1487.65 1023.891 16.35 16.30 10.629 3.48193 4.88641 31.12 1487.65 1023.897 16.65 16.60 10.625 3.48310 4.88855 31.14 1487.66 1023.910 16.95 16.90 10.621 3.48422 4.89072 31.15 1487.67 1023.923 17.25 17.20 10.619 3.48340 4.88981 31.15 1487.66 1023.920 17.50 17.45 10.628 3.47250 4.87324 31.03 1487.55 1023.829