*2026/01/16 09:57:54.44 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/09/04 15:50:36.000 END TIME : UTC 2024/09/04 15:50:51.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 79 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 23.52 2 Depth metres 0.15 23.42 3 Temperature 'deg C (ITS90)' 10.435 15.644 4 Conductivity S/m 3.54713 3.86679 5 Conductance:Specific S/m 4.75471 5.00762 6 Salinity PSS-78 30.63 31.95 7 Speed:Sound m/s 1488.06 1503.66 8 Density kg/m^3 1022.476 1024.61 $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 : 236 LATITUDE : 48 54.50000 N ! (deg min) LONGITUDE : 125 20.20640 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240904_155036 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:05 79 79 MERGEHDR 1.3 2026/01/16 09:54:05 79 79 HDREDIT2 3.2 2026/01/16 09:55:11 ? ? REMOVECH 8.2 2026/01/16 09:56:22 79 79 CALIB 12.1 2026/01/16 09:56:55 79 79 CLEAN 5.3 2026/01/16 09:57:54 79 79 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:11 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 09:56:22 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:55 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 15.644 3.86679 4.75684 30.65 1503.66 1022.483 0.45 0.45 15.623 3.86302 4.75471 30.63 1503.58 1022.476 0.75 0.75 15.453 3.85885 4.76957 30.73 1503.16 1022.588 1.05 1.05 15.188 3.84627 4.78538 30.82 1502.43 1022.720 1.35 1.35 15.005 3.82822 4.78463 30.81 1501.83 1022.746 1.65 1.64 14.696 3.80735 4.79567 30.86 1500.91 1022.857 1.95 1.94 14.468 3.79401 4.80640 30.92 1500.25 1022.952 2.25 2.24 14.234 3.78950 4.82935 31.07 1499.66 1023.114 2.55 2.54 14.174 3.77940 4.82387 31.02 1499.42 1023.094 2.85 2.84 14.094 3.77202 4.82432 31.02 1499.16 1023.109 3.15 3.14 14.029 3.76842 4.82777 31.04 1498.97 1023.139 3.45 3.44 13.950 3.76518 4.83336 31.07 1498.76 1023.182 3.75 3.74 13.892 3.76115 4.83538 31.08 1498.59 1023.203 4.05 4.04 13.810 3.75485 4.83753 31.09 1498.33 1023.227 4.35 4.33 13.735 3.75099 4.84184 31.12 1498.12 1023.263 4.65 4.63 13.664 3.74717 4.84587 31.14 1497.91 1023.296 4.95 4.93 13.569 3.74028 4.84883 31.15 1497.62 1023.326 5.25 5.23 13.380 3.73002 4.85936 31.21 1497.07 1023.411 5.55 5.53 13.234 3.71680 4.86059 31.21 1496.58 1023.438 5.85 5.83 13.116 3.71207 4.86949 31.26 1496.25 1023.503 6.15 6.13 13.015 3.70884 4.87809 31.31 1495.98 1023.565 6.45 6.43 12.934 3.70598 4.88481 31.35 1495.76 1023.613 6.75 6.73 12.705 3.68813 4.89083 31.38 1495.02 1023.675 7.05 7.02 12.492 3.67083 4.89549 31.39 1494.32 1023.727 7.35 7.32 12.377 3.65028 4.88308 31.29 1493.81 1023.673 7.65 7.62 12.245 3.64330 4.89099 31.33 1493.41 1023.732 7.95 7.92 12.102 3.63944 4.90470 31.42 1493.03 1023.825 8.25 8.22 11.996 3.63719 4.91571 31.48 1492.75 1023.898 8.55 8.52 11.939 3.63422 4.91928 31.50 1492.58 1023.925 8.85 8.82 11.876 3.63174 4.92430 31.53 1492.40 1023.961 9.15 9.12 11.850 3.63211 4.92822 31.56 1492.35 1023.986 9.45 9.41 11.828 3.62887 4.92681 31.55 1492.26 1023.982 9.75 9.71 11.781 3.62627 4.92956 31.56 1492.12 1024.003 10.05 10.01 11.723 3.62411 4.93445 31.59 1491.96 1024.037 10.35 10.31 11.684 3.61994 4.93398 31.58 1491.82 1024.040 10.65 10.61 11.654 3.61823 4.93566 31.59 1491.73 1024.053 10.95 10.91 11.643 3.61796 4.93676 31.60 1491.70 1024.062 11.25 11.21 11.611 3.61622 4.93871 31.61 1491.61 1024.077 11.55 11.50 11.583 3.61597 4.94216 31.63 1491.54 1024.100 11.85 11.80 11.547 3.61529 4.94608 31.65 1491.45 1024.126 12.15 12.10 11.521 3.61347 4.94717 31.66 1491.37 1024.136 12.45 12.40 11.506 3.61014 4.94460 31.64 1491.30 1024.125 12.75 12.70 11.468 3.60675 4.94512 31.64 1491.17 1024.132 13.05 13.00 11.434 3.60608 4.94879 31.66 1491.08 1024.157 13.35 13.30 11.405 3.60473 4.95091 31.67 1491.00 1024.173 13.65 13.59 11.384 3.60348 4.95201 31.68 1490.94 1024.182 13.95 13.89 11.364 3.60239 4.95319 31.68 1490.88 1024.192 14.25 14.19 11.350 3.60163 4.95404 31.69 1490.84 1024.199 14.55 14.49 11.330 3.60001 4.95463 31.69 1490.78 1024.205 14.85 14.79 11.315 3.59858 4.95474 31.69 1490.73 1024.209 15.15 15.09 11.301 3.59860 4.95658 31.70 1490.70 1024.221 15.45 15.39 11.289 3.59767 4.95704 31.70 1490.66 1024.226 15.75 15.68 11.278 3.59804 4.95893 31.71 1490.65 1024.239 16.05 15.98 11.250 3.59595 4.95990 31.72 1490.56 1024.248 16.35 16.28 11.238 3.59606 4.96178 31.73 1490.53 1024.261 16.65 16.58 11.216 3.59271 4.96009 31.71 1490.45 1024.255 16.95 16.88 11.199 3.59101 4.96009 31.71 1490.39 1024.257 17.25 17.18 11.178 3.58961 4.96101 31.71 1490.32 1024.266 17.55 17.48 11.161 3.58874 4.96221 31.72 1490.28 1024.275 17.85 17.77 11.145 3.58869 4.96427 31.73 1490.24 1024.289 18.15 18.07 11.129 3.58784 4.96528 31.74 1490.20 1024.297 18.45 18.37 11.111 3.58734 4.96706 31.75 1490.15 1024.310 18.75 18.67 11.094 3.58536 4.96674 31.75 1490.09 1024.311 19.05 18.97 11.061 3.58467 4.97034 31.77 1490.00 1024.335 19.35 19.27 11.024 3.58339 4.97364 31.79 1489.90 1024.358 19.65 19.57 10.958 3.57830 4.97564 31.79 1489.68 1024.375 19.95 19.86 10.858 3.57255 4.98146 31.82 1489.37 1024.417 20.25 20.16 10.815 3.57003 4.98397 31.83 1489.24 1024.436 20.55 20.46 10.752 3.56686 4.98838 31.86 1489.04 1024.467 20.85 20.76 10.698 3.55946 4.98550 31.83 1488.83 1024.456 21.15 21.06 10.664 3.55739 4.98731 31.84 1488.72 1024.470 21.45 21.36 10.648 3.55655 4.98847 31.85 1488.67 1024.479 21.75 21.66 10.611 3.55616 4.99307 31.87 1488.58 1024.509 22.05 21.95 10.599 3.55496 4.99305 31.87 1488.54 1024.511 22.35 22.25 10.582 3.55372 4.99369 31.87 1488.49 1024.517 22.65 22.55 10.566 3.55431 4.99673 31.89 1488.46 1024.536 22.95 22.85 10.554 3.54985 4.99226 31.86 1488.38 1024.514 23.25 23.15 10.439 3.54713 5.00451 31.93 1488.06 1024.591 23.52 23.42 10.435 3.54890 5.00762 31.95 1488.08 1024.610