*2026/01/16 09:57:47.58 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/02/01 23:16:35.000 END TIME : UTC 2024/02/01 23:16:44.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 49 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 14.7 2 Depth metres 0.15 14.7 3 Temperature 'deg C (ITS90)' 9.26 9.629 4 Conductivity S/m 1.48511 3.27802 5 Conductance:Specific S/m 2.16739 4.73786 6 Salinity PSS-78 12.71 29.95 7 Speed:Sound m/s 1459.98 1482.45 8 Density kg/m^3 1009.695 1023.146 $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 : 36 LATITUDE : 50 1.08080 N ! (deg min) LONGITUDE : 127 12.59170 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240201_231635 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:55 49 49 MERGEHDR 1.3 2026/01/16 09:53:46 49 49 HDREDIT2 3.2 2026/01/16 09:55:01 ? ? REMOVECH 8.2 2026/01/16 09:56:13 49 49 CALIB 12.1 2026/01/16 09:56:45 49 49 CLEAN 5.3 2026/01/16 09:57:47 49 49 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:01 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 9.260 1.48511 2.16739 12.71 1459.98 1009.695 0.45 0.45 9.319 1.50915 2.19869 12.92 1460.46 1009.847 0.75 0.76 9.354 1.63771 2.38356 14.10 1462.04 1010.767 1.05 1.06 9.391 1.76090 2.56011 15.24 1463.58 1011.652 1.35 1.36 9.401 1.78930 2.60062 15.50 1463.94 1011.857 1.65 1.66 9.418 1.89699 2.75581 16.52 1465.24 1012.644 1.95 1.97 9.427 1.96284 2.85072 17.14 1466.03 1013.128 2.25 2.27 9.438 2.02734 2.94349 17.75 1466.82 1013.602 2.55 2.57 9.475 2.07017 3.00241 18.14 1467.44 1013.903 2.85 2.87 9.486 2.08816 3.02757 18.31 1467.69 1014.033 3.15 3.17 9.501 2.10974 3.05750 18.50 1468.00 1014.187 3.45 3.47 9.514 2.13138 3.08773 18.70 1468.29 1014.343 3.75 3.77 9.517 2.15575 3.12275 18.94 1468.59 1014.525 4.05 4.08 9.517 2.20434 3.19311 19.40 1469.16 1014.889 4.35 4.38 9.518 2.26994 3.28806 20.04 1469.94 1015.382 4.65 4.68 9.518 2.34529 3.39723 20.77 1470.83 1015.952 4.95 4.98 9.515 2.42278 3.50975 21.52 1471.74 1016.541 5.25 5.28 9.514 2.53044 3.66583 22.57 1473.02 1017.361 5.55 5.58 9.519 2.67875 3.88014 24.03 1474.81 1018.494 5.85 5.88 9.535 2.79082 4.04055 25.12 1476.21 1019.347 6.15 6.18 9.552 2.97272 4.30176 26.92 1478.46 1020.747 6.45 6.48 9.566 3.02971 4.38252 27.48 1479.20 1021.183 6.75 6.78 9.582 3.06703 4.43447 27.84 1479.70 1021.464 7.05 7.08 9.592 3.07971 4.45145 27.96 1479.89 1021.556 7.35 7.38 9.612 3.11202 4.49556 28.27 1480.34 1021.795 7.65 7.68 9.616 3.14777 4.54663 28.62 1480.80 1022.073 7.95 7.98 9.627 3.16244 4.56641 28.76 1481.01 1022.181 8.25 8.28 9.629 3.17102 4.57855 28.85 1481.13 1022.248 8.55 8.57 9.624 3.17701 4.58789 28.91 1481.19 1022.301 8.85 8.87 9.614 3.19311 4.61239 29.08 1481.37 1022.436 9.15 9.17 9.609 3.20339 4.62791 29.19 1481.48 1022.522 9.45 9.47 9.600 3.21147 4.64091 29.28 1481.56 1022.595 9.75 9.77 9.596 3.21697 4.64932 29.34 1481.63 1022.642 10.05 10.07 9.591 3.22619 4.66327 29.43 1481.73 1022.719 10.35 10.37 9.591 3.23508 4.67617 29.52 1481.84 1022.791 10.65 10.67 9.597 3.24052 4.68324 29.57 1481.93 1022.831 10.95 10.97 9.601 3.24365 4.68719 29.60 1481.99 1022.853 11.25 11.27 9.602 3.24469 4.68861 29.61 1482.01 1022.862 11.55 11.56 9.598 3.24668 4.69202 29.63 1482.02 1022.882 11.85 11.86 9.596 3.24771 4.69376 29.65 1482.04 1022.893 12.15 12.16 9.595 3.24883 4.69548 29.66 1482.05 1022.904 12.45 12.46 9.596 3.24965 4.69650 29.67 1482.07 1022.911 12.75 12.76 9.599 3.25289 4.70081 29.70 1482.12 1022.935 13.05 13.06 9.598 3.25349 4.70186 29.70 1482.13 1022.942 13.35 13.36 9.594 3.25508 4.70469 29.72 1482.15 1022.959 13.65 13.66 9.596 3.25719 4.70746 29.74 1482.18 1022.975 13.95 13.96 9.606 3.26506 4.71749 29.81 1482.31 1023.031 14.25 14.26 9.600 3.27477 4.73228 29.92 1482.42 1023.113 14.70 14.70 9.594 3.27802 4.73786 29.95 1482.45 1023.146