*2026/01/16 09:57:46.99 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/01/11 21:07:52.000 END TIME : UTC 2024/01/11 21:08:05.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 67 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 20.02 2 Depth metres 0.15 19.96 3 Temperature 'deg C (ITS90)' 9.046 10.668 4 Conductivity S/m 2.92281 3.42913 5 Conductance:Specific S/m 4.29118 4.80699 6 Salinity PSS-78 26.8 30.57 7 Speed:Sound m/s 1476.33 1487.18 8 Density kg/m^3 1020.69 1023.473 $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 : 12 LATITUDE : 48 59.61250 N ! (deg min) LONGITUDE : 125 19.86460 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240111_210752 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:54 67 67 MERGEHDR 1.3 2026/01/16 09:53:44 67 67 HDREDIT2 3.2 2026/01/16 09:55:00 ? ? REMOVECH 8.2 2026/01/16 09:56:13 67 67 CALIB 12.1 2026/01/16 09:56:45 67 67 CLEAN 5.3 2026/01/16 09:57:46 67 67 $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 9.113 2.92771 4.29118 26.80 1476.58 1020.690 0.45 0.45 9.046 2.92281 4.29247 26.80 1476.33 1020.702 0.75 0.75 9.173 2.93956 4.30106 26.87 1476.90 1020.742 1.05 1.05 9.293 2.97465 4.33715 27.14 1477.68 1020.931 1.35 1.35 9.449 3.02233 4.38666 27.50 1478.70 1021.190 1.65 1.65 9.505 3.04630 4.41429 27.69 1479.16 1021.338 1.95 1.95 9.489 3.04529 4.41486 27.70 1479.10 1021.343 2.25 2.25 9.502 3.03720 4.40154 27.61 1479.04 1021.272 2.55 2.55 9.547 3.03855 4.39764 27.58 1479.19 1021.249 2.85 2.85 9.642 3.05112 4.40383 27.64 1479.61 1021.278 3.15 3.14 9.781 3.09804 4.45360 28.00 1480.57 1021.539 3.45 3.44 9.873 3.14756 4.51287 28.42 1481.43 1021.856 3.75 3.74 9.887 3.23675 4.63887 29.30 1482.55 1022.541 4.05 4.04 9.997 3.26153 4.65968 29.46 1483.15 1022.649 4.35 4.34 10.113 3.26354 4.64721 29.39 1483.49 1022.574 4.65 4.64 10.165 3.26412 4.64110 29.35 1483.64 1022.538 4.95 4.94 10.181 3.26451 4.63964 29.34 1483.69 1022.530 5.25 5.24 10.181 3.26488 4.64017 29.34 1483.70 1022.534 5.55 5.54 10.178 3.26853 4.64575 29.38 1483.74 1022.566 5.85 5.84 10.195 3.27205 4.64843 29.40 1483.83 1022.581 6.15 6.14 10.199 3.27286 4.64908 29.41 1483.86 1022.586 6.45 6.43 10.194 3.27256 4.64934 29.41 1483.85 1022.589 6.75 6.73 10.206 3.27637 4.65308 29.44 1483.93 1022.609 7.05 7.03 10.207 3.27705 4.65394 29.44 1483.95 1022.615 7.35 7.33 10.209 3.28077 4.65894 29.48 1484.00 1022.644 7.65 7.63 10.229 3.28648 4.66446 29.52 1484.13 1022.674 7.95 7.93 10.252 3.29261 4.67015 29.56 1484.26 1022.704 8.25 8.23 10.265 3.29373 4.66993 29.56 1484.32 1022.703 8.55 8.53 10.264 3.30086 4.68017 29.63 1484.41 1022.761 8.85 8.83 10.280 3.30339 4.68171 29.64 1484.48 1022.769 9.15 9.13 10.293 3.30357 4.68020 29.64 1484.52 1022.761 9.45 9.43 10.312 3.30829 4.68441 29.67 1484.63 1022.784 9.75 9.72 10.324 3.32415 4.70518 29.81 1484.86 1022.898 10.05 10.02 10.351 3.33132 4.71182 29.86 1485.02 1022.934 10.35 10.32 10.369 3.33545 4.71527 29.89 1485.12 1022.952 10.65 10.62 10.383 3.34068 4.72070 29.93 1485.23 1022.982 10.95 10.92 10.397 3.34702 4.72785 29.98 1485.35 1023.022 11.25 11.22 10.407 3.35260 4.73438 30.03 1485.45 1023.058 11.55 11.52 10.427 3.35703 4.73799 30.06 1485.55 1023.077 11.85 11.82 10.443 3.36220 4.74316 30.09 1485.66 1023.106 12.15 12.12 10.455 3.36545 4.74609 30.12 1485.74 1023.122 12.45 12.41 10.461 3.36688 4.74729 30.12 1485.78 1023.130 12.75 12.71 10.473 3.36824 4.74761 30.13 1485.83 1023.132 13.05 13.01 10.492 3.37149 4.74969 30.14 1485.92 1023.143 13.35 13.31 10.496 3.37556 4.75485 30.18 1485.99 1023.172 13.65 13.61 10.506 3.37745 4.75614 30.19 1486.04 1023.180 13.95 13.91 10.524 3.38043 4.75799 30.21 1486.13 1023.190 14.25 14.21 10.541 3.38917 4.76797 30.28 1486.28 1023.244 14.55 14.51 10.566 3.39604 4.77428 30.33 1486.43 1023.278 14.85 14.81 10.574 3.39806 4.77607 30.34 1486.48 1023.289 15.15 15.10 10.577 3.39943 4.77752 30.35 1486.51 1023.298 15.45 15.40 10.585 3.40202 4.78009 30.37 1486.57 1023.312 15.75 15.70 10.588 3.40431 4.78293 30.39 1486.61 1023.329 16.05 16.00 10.599 3.40546 4.78315 30.39 1486.65 1023.331 16.35 16.30 10.601 3.40599 4.78362 30.39 1486.67 1023.334 16.65 16.60 10.605 3.40841 4.78635 30.41 1486.71 1023.350 16.95 16.90 10.613 3.40854 4.78555 30.41 1486.74 1023.346 17.25 17.20 10.609 3.40974 4.78778 30.42 1486.75 1023.360 17.55 17.50 10.622 3.41099 4.78778 30.43 1486.80 1023.360 17.85 17.79 10.624 3.41300 4.79034 30.44 1486.84 1023.376 18.15 18.09 10.622 3.41344 4.79125 30.45 1486.84 1023.382 18.45 18.39 10.624 3.41594 4.79439 30.47 1486.88 1023.400 18.75 18.69 10.632 3.41988 4.79889 30.50 1486.95 1023.426 19.05 18.99 10.641 3.42011 4.79804 30.50 1486.98 1023.422 19.35 19.29 10.640 3.42211 4.80100 30.52 1487.01 1023.439 19.65 19.59 10.652 3.42676 4.80580 30.56 1487.10 1023.466 20.02 19.96 10.668 3.42913 4.80699 30.57 1487.18 1023.473