*2026/01/16 09:57:56.01 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/10/16 17:51:32.000 END TIME : UTC 2024/10/16 17:51:48.000 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 24.17 2 Depth metres 0.15 24.11 3 Temperature 'deg C (ITS90)' 10.341 13.796 4 Conductivity S/m 1.25345 3.58565 5 Conductance:Specific S/m 1.62298 5.03228 6 Salinity PSS-78 9.41 32.12 7 Speed:Sound m/s 1472.2 1492.39 8 Density kg/m^3 1006.558 1024.755 $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 : 272 LATITUDE : 49 10.70070 N ! (deg min) LONGITUDE : 124 49.71450 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20241016_175132 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:08 81 81 MERGEHDR 1.3 2026/01/16 09:54:08 81 81 HDREDIT2 3.2 2026/01/16 09:55:13 ? ? REMOVECH 8.2 2026/01/16 09:56:23 81 81 CALIB 12.1 2026/01/16 09:56:56 81 81 CLEAN 5.3 2026/01/16 09:57:56 81 81 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:13 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 09:56:23 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:56 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 13.616 1.25345 1.62298 9.41 1472.21 1006.558 0.45 0.46 13.608 1.25443 1.62458 9.42 1472.20 1006.568 0.75 0.76 13.562 1.29947 1.68490 9.80 1472.48 1006.867 1.05 1.06 13.547 1.38382 1.79498 10.49 1473.25 1007.405 1.35 1.37 13.593 1.64654 2.13322 12.65 1475.96 1009.061 1.65 1.67 13.696 1.86175 2.40562 14.42 1478.39 1010.406 1.95 1.97 13.738 1.94207 2.50670 15.09 1479.32 1010.910 2.25 2.27 13.796 1.98669 2.56044 15.44 1479.94 1011.174 2.55 2.58 13.794 2.12750 2.74206 16.64 1481.34 1012.097 2.85 2.88 13.758 2.34735 3.02821 18.55 1483.45 1013.570 3.15 3.18 13.735 2.42784 3.13389 19.26 1484.21 1014.120 3.45 3.48 13.684 2.52074 3.25816 20.09 1485.01 1014.774 3.75 3.78 13.596 2.62244 3.39732 21.03 1485.82 1015.514 4.05 4.08 13.464 2.81247 3.65594 22.79 1487.43 1016.893 4.35 4.38 13.255 2.97944 3.89420 24.42 1488.64 1018.187 4.65 4.68 13.125 3.12363 4.09655 25.81 1489.84 1019.288 4.95 4.98 12.957 3.25811 4.29184 27.17 1490.86 1020.363 5.25 5.28 12.646 3.35836 4.46045 28.32 1491.18 1021.317 5.55 5.58 12.505 3.42873 4.57102 29.09 1491.61 1021.938 5.85 5.88 12.332 3.53665 4.73680 30.25 1492.39 1022.867 6.15 6.18 12.106 3.56215 4.80000 30.67 1492.12 1023.240 6.45 6.48 11.946 3.57168 4.83368 30.90 1491.84 1023.444 6.75 6.78 11.789 3.57448 4.85814 31.05 1491.49 1023.596 7.05 7.08 11.716 3.57692 4.87111 31.14 1491.34 1023.676 7.35 7.38 11.669 3.57955 4.88091 31.20 1491.26 1023.736 7.65 7.68 11.583 3.58098 4.89429 31.29 1491.07 1023.819 7.95 7.97 11.477 3.58098 4.90857 31.38 1490.81 1023.910 8.25 8.27 11.373 3.58426 4.92705 31.50 1490.60 1024.023 8.55 8.57 11.260 3.58565 4.94435 31.61 1490.34 1024.130 8.85 8.87 11.110 3.58240 4.96041 31.71 1489.94 1024.233 9.15 9.17 10.976 3.58111 4.97708 31.81 1489.59 1024.338 9.45 9.47 10.914 3.58024 4.98442 31.85 1489.43 1024.385 9.75 9.77 10.883 3.57901 4.98704 31.87 1489.34 1024.403 10.05 10.06 10.863 3.57836 4.98899 31.88 1489.29 1024.417 10.35 10.36 10.845 3.57882 4.99204 31.90 1489.26 1024.436 10.65 10.66 10.829 3.57932 4.99500 31.92 1489.23 1024.455 10.95 10.96 10.822 3.57939 4.99601 31.92 1489.22 1024.463 11.25 11.26 10.801 3.57865 4.99792 31.94 1489.16 1024.476 11.55 11.56 10.783 3.57730 4.99855 31.94 1489.10 1024.482 11.85 11.86 10.767 3.57668 4.99995 31.95 1489.06 1024.493 12.15 12.15 10.752 3.57637 5.00158 31.96 1489.03 1024.504 12.45 12.45 10.736 3.57484 5.00177 31.95 1488.97 1024.508 12.75 12.75 10.717 3.57482 5.00443 31.97 1488.93 1024.525 13.05 13.05 10.701 3.57443 5.00610 31.98 1488.89 1024.537 13.35 13.35 10.681 3.57380 5.00801 31.99 1488.83 1024.550 13.65 13.65 10.669 3.57340 5.00912 32.00 1488.80 1024.559 13.95 13.94 10.656 3.57291 5.01028 32.00 1488.77 1024.568 14.25 14.24 10.642 3.57173 5.01055 32.01 1488.73 1024.571 14.55 14.54 10.632 3.57150 5.01170 32.01 1488.70 1024.580 14.85 14.84 10.617 3.57059 5.01252 32.02 1488.66 1024.587 15.15 15.14 10.599 3.57126 5.01589 32.04 1488.63 1024.608 15.45 15.44 10.589 3.57057 5.01634 32.04 1488.60 1024.612 15.75 15.74 10.582 3.56938 5.01567 32.03 1488.57 1024.610 16.05 16.03 10.569 3.56967 5.01796 32.05 1488.55 1024.625 16.35 16.33 10.559 3.56879 5.01810 32.05 1488.52 1024.628 16.65 16.63 10.550 3.56836 5.01883 32.05 1488.49 1024.634 16.95 16.93 10.544 3.56782 5.01893 32.05 1488.48 1024.636 17.25 17.23 10.533 3.56698 5.01920 32.05 1488.45 1024.640 17.55 17.53 10.524 3.56731 5.02102 32.06 1488.43 1024.652 17.85 17.82 10.513 3.56641 5.02125 32.06 1488.40 1024.655 18.15 18.12 10.498 3.56515 5.02165 32.06 1488.35 1024.660 18.45 18.42 10.476 3.56417 5.02333 32.07 1488.29 1024.672 18.75 18.72 10.473 3.56328 5.02254 32.07 1488.27 1024.669 19.05 19.02 10.465 3.56291 5.02307 32.07 1488.25 1024.674 19.35 19.32 10.459 3.56302 5.02418 32.08 1488.24 1024.682 19.65 19.62 10.454 3.56271 5.02435 32.08 1488.23 1024.684 19.95 19.91 10.455 3.56285 5.02441 32.08 1488.24 1024.686 20.25 20.21 10.455 3.56326 5.02500 32.08 1488.25 1024.690 20.55 20.51 10.452 3.56213 5.02383 32.07 1488.24 1024.685 20.85 20.81 10.452 3.56278 5.02485 32.08 1488.25 1024.692 21.15 21.11 10.451 3.56276 5.02494 32.08 1488.25 1024.694 21.45 21.41 10.445 3.56264 5.02565 32.08 1488.24 1024.700 21.75 21.70 10.436 3.56209 5.02605 32.09 1488.21 1024.704 22.05 22.00 10.439 3.56223 5.02582 32.09 1488.23 1024.704 22.35 22.30 10.439 3.56187 5.02531 32.08 1488.23 1024.702 22.65 22.60 10.436 3.56163 5.02549 32.08 1488.22 1024.705 22.95 22.90 10.393 3.56008 5.02935 32.10 1488.10 1024.730 23.25 23.20 10.384 3.55902 5.02920 32.10 1488.07 1024.731 23.55 23.50 10.354 3.55741 5.03112 32.11 1487.98 1024.745 23.85 23.79 10.344 3.55706 5.03208 32.12 1487.95 1024.753 24.17 24.11 10.341 3.55691 5.03228 32.12 1487.95 1024.755