*2026/01/16 09:57:47.02 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/01/11 21:49:18.000 END TIME : UTC 2024/01/11 21:49:34.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 82 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 24.41 2 Depth metres 0.15 24.33 3 Temperature 'deg C (ITS90)' 7.894 10.628 4 Conductivity S/m 2.70203 3.47498 5 Conductance:Specific S/m 4.09451 4.87874 6 Salinity PSS-78 25.32 31.06 7 Speed:Sound m/s 1470.21 1487.68 8 Density kg/m^3 1019.686 1023.889 $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 : 13 LATITUDE : 48 56.34820 N ! (deg min) LONGITUDE : 125 15.77000 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240111_214918 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:54 82 82 MERGEHDR 1.3 2026/01/16 09:53:44 82 82 HDREDIT2 3.2 2026/01/16 09:55:00 ? ? REMOVECH 8.2 2026/01/16 09:56:13 82 82 CALIB 12.1 2026/01/16 09:56:45 82 82 CLEAN 5.3 2026/01/16 09:57:47 82 82 $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 8.012 2.70385 4.09523 25.33 1470.56 1019.689 0.45 0.45 8.012 2.70338 4.09451 25.32 1470.56 1019.686 0.75 0.75 8.004 2.70474 4.09754 25.34 1470.56 1019.704 1.05 1.05 7.982 2.70622 4.10260 25.37 1470.52 1019.733 1.35 1.35 7.915 2.70574 4.11023 25.42 1470.32 1019.777 1.65 1.65 7.894 2.70203 4.10717 25.39 1470.21 1019.762 1.95 1.95 7.954 2.72129 4.12894 25.55 1470.64 1019.878 2.25 2.25 7.970 2.74219 4.15862 25.75 1470.96 1020.037 2.55 2.55 7.992 2.76020 4.18319 25.92 1471.26 1020.169 2.85 2.85 8.243 2.79656 4.20620 26.11 1472.47 1020.285 3.15 3.15 8.563 2.88083 4.29173 26.74 1474.46 1020.732 3.45 3.45 8.856 2.97398 4.39214 27.46 1476.47 1021.261 3.75 3.75 9.145 3.05612 4.47518 28.07 1478.31 1021.696 4.05 4.05 9.315 3.07751 4.48415 28.16 1479.05 1021.737 4.35 4.35 9.521 3.13509 4.54091 28.57 1480.33 1022.034 4.65 4.65 9.660 3.17736 4.58359 28.89 1481.23 1022.259 4.95 4.94 9.692 3.18598 4.59177 28.95 1481.43 1022.302 5.25 5.24 9.724 3.19288 4.59756 28.99 1481.60 1022.333 5.55 5.54 9.751 3.19443 4.59614 28.99 1481.70 1022.325 5.85 5.84 9.773 3.19563 4.59503 28.98 1481.78 1022.319 6.15 6.14 9.792 3.20246 4.60227 29.03 1481.92 1022.358 6.45 6.44 9.803 3.20849 4.60947 29.08 1482.03 1022.398 6.75 6.74 9.810 3.21039 4.61136 29.10 1482.07 1022.409 7.05 7.04 9.833 3.21326 4.61232 29.11 1482.18 1022.414 7.35 7.34 9.855 3.21559 4.61282 29.11 1482.27 1022.417 7.65 7.64 9.846 3.21783 4.61726 29.14 1482.27 1022.443 7.95 7.94 9.832 3.22179 4.62482 29.19 1482.29 1022.486 8.25 8.23 9.842 3.22275 4.62483 29.20 1482.33 1022.487 8.55 8.53 9.882 3.22536 4.62324 29.19 1482.48 1022.477 8.85 8.83 9.924 3.22963 4.62385 29.20 1482.65 1022.479 9.15 9.13 9.954 3.23577 4.62864 29.24 1482.80 1022.504 9.45 9.43 10.001 3.24935 4.64174 29.33 1483.10 1022.573 9.75 9.73 10.057 3.26849 4.66174 29.48 1483.49 1022.680 10.05 10.03 10.098 3.28135 4.67458 29.57 1483.76 1022.748 10.35 10.33 10.151 3.29153 4.68194 29.63 1484.02 1022.786 10.65 10.63 10.188 3.30610 4.69782 29.75 1484.30 1022.872 10.95 10.93 10.219 3.31764 4.71003 29.84 1484.53 1022.937 11.25 11.23 10.259 3.32896 4.72078 29.92 1484.77 1022.995 11.55 11.52 10.283 3.33923 4.73204 30.00 1484.97 1023.056 11.85 11.82 10.307 3.35151 4.74627 30.10 1485.18 1023.133 12.15 12.12 10.335 3.36339 4.75930 30.19 1485.40 1023.203 12.45 12.42 10.359 3.37215 4.76844 30.26 1485.57 1023.253 12.75 12.72 10.375 3.37880 4.77575 30.31 1485.70 1023.293 13.05 13.02 10.391 3.38686 4.78489 30.38 1485.84 1023.343 13.35 13.32 10.404 3.39337 4.79236 30.43 1485.96 1023.385 13.65 13.62 10.414 3.39708 4.79621 30.46 1486.04 1023.406 13.95 13.91 10.418 3.39898 4.79839 30.48 1486.07 1023.419 14.25 14.21 10.421 3.39963 4.79894 30.48 1486.09 1023.423 14.55 14.51 10.434 3.40240 4.80108 30.50 1486.17 1023.435 14.85 14.81 10.441 3.40561 4.80461 30.52 1486.23 1023.455 15.15 15.11 10.447 3.40993 4.80992 30.56 1486.30 1023.485 15.45 15.41 10.459 3.41262 4.81200 30.58 1486.37 1023.497 15.75 15.71 10.465 3.41492 4.81447 30.60 1486.42 1023.511 16.05 16.01 10.473 3.41609 4.81509 30.60 1486.45 1023.516 16.35 16.31 10.481 3.41855 4.81741 30.62 1486.51 1023.529 16.65 16.60 10.493 3.42196 4.82059 30.64 1486.59 1023.547 16.95 16.90 10.503 3.42513 4.82369 30.67 1486.66 1023.564 17.25 17.20 10.514 3.42896 4.82763 30.69 1486.73 1023.586 17.55 17.50 10.529 3.43204 4.82996 30.71 1486.81 1023.599 17.85 17.80 10.538 3.43357 4.83082 30.72 1486.86 1023.604 18.15 18.10 10.543 3.43867 4.83728 30.77 1486.94 1023.641 18.45 18.40 10.549 3.44075 4.83945 30.78 1486.98 1023.654 18.75 18.70 10.549 3.44011 4.83848 30.77 1486.98 1023.649 19.05 18.99 10.548 3.44192 4.84130 30.79 1487.00 1023.666 19.35 19.29 10.554 3.44437 4.84390 30.81 1487.05 1023.681 19.65 19.59 10.569 3.44706 4.84563 30.83 1487.13 1023.691 19.95 19.89 10.572 3.44796 4.84643 30.83 1487.15 1023.696 20.25 20.19 10.572 3.44847 4.84716 30.84 1487.17 1023.702 20.55 20.49 10.579 3.44892 4.84688 30.84 1487.19 1023.701 20.85 20.79 10.578 3.44929 4.84744 30.84 1487.20 1023.705 21.15 21.09 10.577 3.44989 4.84854 30.85 1487.21 1023.713 21.45 21.38 10.578 3.44965 4.84804 30.84 1487.21 1023.711 21.75 21.68 10.582 3.45052 4.84865 30.85 1487.24 1023.715 22.05 21.98 10.579 3.45046 4.84901 30.85 1487.24 1023.719 22.35 22.28 10.579 3.45113 4.85002 30.86 1487.25 1023.726 22.65 22.58 10.584 3.45397 4.85320 30.88 1487.30 1023.744 22.95 22.88 10.595 3.45660 4.85548 30.90 1487.36 1023.757 23.25 23.18 10.597 3.47262 4.87776 31.06 1487.57 1023.881 23.55 23.48 10.617 3.47498 4.87828 31.06 1487.65 1023.883 23.85 23.77 10.628 3.47451 4.87604 31.05 1487.68 1023.871 24.15 24.07 10.609 3.47456 4.87874 31.06 1487.64 1023.889 24.41 24.33 10.459 3.40900 4.80702 30.54 1486.47 1023.508