*2026/01/16 09:57:47.56 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/02/01 22:38:49.000 END TIME : UTC 2024/02/01 22:39:10.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 106 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 31.65 2 Depth metres 0.15 31.6 3 Temperature 'deg C (ITS90)' 9.152 9.641 4 Conductivity S/m 1.20151 3.33099 5 Conductance:Specific S/m 1.75905 4.84421 6 Salinity PSS-78 10.14 30.66 7 Speed:Sound m/s 1456.41 1483.05 8 Density kg/m^3 1007.701 1023.812 $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 : 35 LATITUDE : 50 2.50320 N ! (deg min) LONGITUDE : 127 16.19680 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240201_223849 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:55 106 106 MERGEHDR 1.3 2026/01/16 09:53:45 106 106 HDREDIT2 3.2 2026/01/16 09:55:01 ? ? REMOVECH 8.2 2026/01/16 09:56:13 106 106 CALIB 12.1 2026/01/16 09:56:45 106 106 CLEAN 5.3 2026/01/16 09:57:47 106 106 $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 9.152 1.20151 1.75905 10.14 1456.41 1007.701 0.45 0.46 9.162 1.21454 1.77761 10.25 1456.59 1007.792 0.75 0.76 9.185 1.29330 1.89161 10.97 1457.56 1008.347 1.05 1.06 9.194 1.31328 1.92032 11.15 1457.82 1008.488 1.35 1.36 9.221 1.35854 1.98493 11.56 1458.43 1008.804 1.65 1.67 9.219 1.35082 1.97378 11.49 1458.34 1008.751 1.95 1.97 9.212 1.34418 1.96448 11.43 1458.25 1008.707 2.25 2.27 9.211 1.37384 2.00787 11.70 1458.58 1008.921 2.55 2.58 9.240 1.43274 2.09223 12.23 1459.35 1009.336 2.85 2.88 9.278 1.50737 2.19877 12.91 1460.33 1009.862 3.15 3.18 9.301 1.60748 2.34319 13.84 1461.55 1010.580 3.45 3.49 9.401 1.86189 2.70613 16.19 1464.81 1012.401 3.75 3.79 9.517 2.06852 2.99637 18.10 1467.58 1013.874 4.05 4.09 9.540 2.23354 3.23323 19.67 1469.58 1015.095 4.35 4.39 9.590 2.36938 3.42492 20.96 1471.33 1016.089 4.65 4.69 9.616 2.57875 3.72481 22.98 1473.89 1017.662 4.95 4.99 9.634 2.65408 3.83161 23.71 1474.84 1018.227 5.25 5.29 9.641 2.70556 3.90511 24.21 1475.48 1018.617 5.55 5.59 9.640 2.76064 3.98478 24.75 1476.14 1019.042 5.85 5.89 9.632 2.80057 4.04337 25.15 1476.60 1019.356 6.15 6.19 9.612 2.85229 4.12043 25.68 1477.17 1019.770 6.45 6.49 9.601 2.94573 4.25665 26.61 1478.28 1020.503 6.75 6.79 9.586 2.99130 4.32440 27.08 1478.79 1020.870 7.05 7.09 9.570 3.05059 4.41213 27.68 1479.48 1021.345 7.35 7.39 9.565 3.05981 4.42613 27.78 1479.58 1021.422 7.65 7.69 9.565 3.08258 4.45906 28.01 1479.86 1021.602 7.95 7.99 9.562 3.08740 4.46643 28.06 1479.92 1021.643 8.25 8.29 9.559 3.10872 4.49777 28.28 1480.17 1021.814 8.55 8.59 9.557 3.11027 4.50017 28.29 1480.19 1021.829 8.85 8.89 9.556 3.11764 4.51107 28.37 1480.28 1021.889 9.15 9.18 9.553 3.12550 4.52274 28.45 1480.38 1021.954 9.45 9.48 9.551 3.13572 4.53788 28.55 1480.50 1022.037 9.75 9.78 9.548 3.14057 4.54519 28.60 1480.56 1022.079 10.05 10.08 9.548 3.14334 4.54930 28.63 1480.59 1022.102 10.35 10.38 9.549 3.14813 4.55602 28.68 1480.66 1022.140 10.65 10.68 9.554 3.15285 4.56221 28.72 1480.74 1022.174 10.95 10.98 9.559 3.15720 4.56782 28.76 1480.81 1022.206 11.25 11.28 9.557 3.16567 4.58031 28.85 1480.91 1022.275 11.55 11.58 9.557 3.17484 4.59361 28.94 1481.03 1022.349 11.85 11.88 9.561 3.18929 4.61397 29.08 1481.22 1022.461 12.15 12.18 9.561 3.19316 4.61955 29.12 1481.28 1022.492 12.45 12.48 9.557 3.19242 4.61902 29.12 1481.26 1022.491 12.75 12.77 9.556 3.19986 4.63002 29.20 1481.35 1022.552 13.05 13.07 9.551 3.20947 4.64459 29.30 1481.46 1022.633 13.35 13.37 9.546 3.21545 4.65390 29.36 1481.53 1022.685 13.65 13.67 9.540 3.22139 4.66330 29.43 1481.59 1022.738 13.95 13.97 9.535 3.22536 4.66970 29.47 1481.63 1022.774 14.25 14.27 9.532 3.23002 4.67681 29.52 1481.69 1022.815 14.55 14.57 9.532 3.23421 4.68290 29.56 1481.74 1022.849 14.85 14.87 9.529 3.24205 4.69467 29.64 1481.84 1022.915 15.15 15.17 9.530 3.25051 4.70686 29.73 1481.95 1022.982 15.45 15.47 9.532 3.25523 4.71333 29.77 1482.02 1023.019 15.75 15.76 9.530 3.25926 4.71942 29.82 1482.07 1023.053 16.05 16.06 9.532 3.26299 4.72464 29.85 1482.12 1023.083 16.35 16.36 9.531 3.26806 4.73210 29.90 1482.18 1023.125 16.65 16.66 9.530 3.27229 4.73833 29.95 1482.24 1023.161 16.95 16.96 9.526 3.27330 4.74036 29.96 1482.25 1023.173 17.25 17.26 9.523 3.27811 4.74770 30.01 1482.30 1023.215 17.55 17.56 9.524 3.28116 4.75194 30.04 1482.35 1023.239 17.85 17.86 9.528 3.28729 4.76032 30.10 1482.44 1023.286 18.15 18.16 9.531 3.29237 4.76721 30.15 1482.52 1023.325 18.45 18.45 9.534 3.29437 4.76982 30.17 1482.55 1023.340 18.75 18.75 9.534 3.29649 4.77284 30.19 1482.58 1023.358 19.05 19.05 9.534 3.29884 4.77617 30.21 1482.62 1023.377 19.35 19.35 9.536 3.29929 4.77656 30.22 1482.63 1023.381 19.65 19.65 9.539 3.30380 4.78268 30.26 1482.70 1023.415 19.95 19.95 9.545 3.30586 4.78486 30.27 1482.75 1023.428 20.25 20.25 9.546 3.30869 4.78877 30.30 1482.79 1023.451 20.55 20.55 9.547 3.31019 4.79089 30.32 1482.81 1023.464 20.85 20.84 9.547 3.31098 4.79202 30.32 1482.83 1023.471 21.15 21.14 9.547 3.31173 4.79310 30.33 1482.84 1023.478 21.45 21.44 9.546 3.31165 4.79313 30.33 1482.84 1023.480 21.75 21.74 9.547 3.31158 4.79291 30.33 1482.85 1023.480 22.05 22.04 9.546 3.31207 4.79373 30.34 1482.86 1023.485 22.35 22.34 9.545 3.31202 4.79379 30.34 1482.86 1023.487 22.65 22.64 9.545 3.31272 4.79484 30.34 1482.87 1023.494 22.95 22.94 9.544 3.31340 4.79593 30.35 1482.89 1023.501 23.25 23.23 9.544 3.31416 4.79700 30.36 1482.90 1023.509 23.55 23.53 9.543 3.31438 4.79743 30.36 1482.91 1023.512 23.85 23.83 9.544 3.31515 4.79848 30.37 1482.92 1023.519 24.15 24.13 9.544 3.31545 4.79892 30.37 1482.93 1023.523 24.45 24.43 9.544 3.31631 4.80014 30.38 1482.94 1023.531 24.75 24.73 9.544 3.31689 4.80094 30.38 1482.96 1023.536 25.05 25.03 9.545 3.31742 4.80159 30.39 1482.97 1023.541 25.35 25.33 9.545 3.31791 4.80227 30.39 1482.98 1023.546 25.65 25.62 9.545 3.31829 4.80284 30.40 1482.99 1023.551 25.95 25.92 9.541 3.31980 4.80557 30.42 1483.00 1023.567 26.25 26.22 9.540 3.32085 4.80728 30.43 1483.02 1023.578 26.55 26.52 9.535 3.32305 4.81117 30.45 1483.04 1023.601 26.85 26.82 9.523 3.32629 4.81748 30.50 1483.05 1023.637 27.15 27.12 9.506 3.32960 4.82466 30.55 1483.05 1023.679 27.45 27.42 9.496 3.33011 4.82686 30.56 1483.04 1023.693 27.75 27.72 9.493 3.33035 4.82758 30.56 1483.04 1023.698 28.05 28.01 9.494 3.33099 4.82837 30.57 1483.05 1023.703 28.35 28.31 9.485 3.33061 4.82904 30.57 1483.03 1023.709 28.65 28.61 9.485 3.32979 4.82781 30.56 1483.02 1023.703 28.95 28.91 9.485 3.32797 4.82525 30.55 1483.00 1023.691 29.25 29.21 9.472 3.32545 4.82345 30.53 1482.94 1023.683 29.55 29.51 9.437 3.32273 4.82440 30.53 1482.82 1023.691 29.85 29.81 9.395 3.32254 4.83001 30.57 1482.71 1023.725 30.15 30.11 9.381 3.32185 4.83089 30.57 1482.67 1023.732 30.45 30.40 9.372 3.32050 4.83022 30.57 1482.64 1023.730 30.75 30.70 9.360 3.32104 4.83266 30.58 1482.62 1023.746 31.05 31.00 9.355 3.32825 4.84397 30.66 1482.70 1023.809 31.35 31.30 9.373 3.32983 4.84372 30.66 1482.77 1023.808 31.65 31.60 9.376 3.33050 4.84421 30.66 1482.79 1023.812