*2026/01/16 09:57:51.08 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/06/10 21:56:31.000 END TIME : UTC 2024/06/10 21:56:51.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 105 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 31.24 2 Depth metres 0.15 31.1 3 Temperature 'deg C (ITS90)' 9.367 15.677 4 Conductivity S/m 3.45221 3.59343 5 Conductance:Specific S/m 4.41701 5.02491 6 Salinity PSS-78 28.23 31.94 7 Speed:Sound m/s 1484.28 1500.97 8 Density kg/m^3 1020.617 1024.803 $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 : 135 LATITUDE : 48 55.79130 N ! (deg min) LONGITUDE : 125 23.46670 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240610_215631 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:00 105 105 MERGEHDR 1.3 2026/01/16 09:53:53 105 105 HDREDIT2 3.2 2026/01/16 09:55:06 ? ? REMOVECH 8.2 2026/01/16 09:56:17 105 105 CALIB 12.1 2026/01/16 09:56:51 105 105 CLEAN 5.3 2026/01/16 09:57:51 105 105 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:06 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 09:56:17 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:51 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 15.677 3.59343 4.41701 28.23 1500.97 1020.617 0.45 0.45 15.255 3.58888 4.45769 28.49 1499.93 1020.910 0.75 0.75 14.705 3.57247 4.49877 28.75 1498.46 1021.223 1.05 1.05 14.553 3.56789 4.51025 28.82 1498.06 1021.310 1.35 1.35 14.529 3.56768 4.51277 28.84 1498.00 1021.329 1.65 1.65 14.366 3.56841 4.53236 28.96 1497.62 1021.462 1.95 1.95 14.058 3.58059 4.58372 29.31 1497.02 1021.789 2.25 2.25 13.677 3.58512 4.63470 29.64 1496.15 1022.123 2.55 2.55 13.322 3.56823 4.65560 29.76 1495.12 1022.286 2.85 2.84 13.116 3.56121 4.67158 29.85 1494.54 1022.402 3.15 3.14 12.930 3.54395 4.67170 29.84 1493.90 1022.427 3.45 3.44 12.693 3.54027 4.69615 29.99 1493.28 1022.591 3.75 3.74 12.480 3.53794 4.71983 30.14 1492.74 1022.748 4.05 4.04 12.255 3.53344 4.74220 30.28 1492.14 1022.897 4.35 4.34 12.020 3.52840 4.76551 30.42 1491.50 1023.052 4.65 4.64 11.800 3.52462 4.78890 30.57 1490.91 1023.205 4.95 4.94 11.653 3.51649 4.79698 30.61 1490.46 1023.265 5.25 5.24 11.457 3.50917 4.81281 30.70 1489.88 1023.373 5.55 5.53 11.227 3.50401 4.83616 30.84 1489.25 1023.524 5.85 5.83 11.035 3.49911 4.85517 30.95 1488.71 1023.647 6.15 6.13 10.822 3.49458 4.87770 31.09 1488.13 1023.790 6.45 6.43 10.695 3.49256 4.89225 31.18 1487.79 1023.882 6.75 6.73 10.590 3.49016 4.90327 31.24 1487.50 1023.952 7.05 7.03 10.564 3.48999 4.90661 31.26 1487.43 1023.974 7.35 7.33 10.542 3.48953 4.90909 31.28 1487.37 1023.990 7.65 7.63 10.498 3.48847 4.91363 31.30 1487.26 1024.020 7.95 7.92 10.459 3.48624 4.91583 31.31 1487.14 1024.036 8.25 8.22 10.418 3.48553 4.92051 31.34 1487.03 1024.066 8.55 8.52 10.356 3.48352 4.92629 31.38 1486.85 1024.104 8.85 8.82 10.335 3.48087 4.92552 31.37 1486.77 1024.102 9.15 9.12 10.311 3.48060 4.92844 31.39 1486.71 1024.121 9.45 9.42 10.288 3.47995 4.93086 31.40 1486.65 1024.138 9.75 9.72 10.263 3.47917 4.93320 31.41 1486.58 1024.154 10.05 10.01 10.236 3.47882 4.93641 31.43 1486.51 1024.174 10.35 10.31 10.216 3.47802 4.93815 31.44 1486.45 1024.187 10.65 10.61 10.204 3.47816 4.94002 31.45 1486.43 1024.199 10.95 10.91 10.191 3.47801 4.94168 31.46 1486.40 1024.210 11.25 11.21 10.174 3.47798 4.94396 31.48 1486.36 1024.225 11.55 11.51 10.166 3.47763 4.94457 31.48 1486.34 1024.230 11.85 11.81 10.146 3.47675 4.94613 31.49 1486.28 1024.242 12.15 12.10 10.121 3.47564 4.94803 31.50 1486.21 1024.255 12.45 12.40 10.105 3.47444 4.94872 31.50 1486.16 1024.261 12.75 12.70 10.092 3.47383 4.94961 31.51 1486.12 1024.268 13.05 13.00 10.078 3.47310 4.95052 31.51 1486.08 1024.276 13.35 13.30 10.074 3.47429 4.95275 31.53 1486.09 1024.289 13.65 13.60 10.069 3.47339 4.95220 31.52 1486.07 1024.288 13.95 13.90 10.059 3.47368 4.95405 31.53 1486.06 1024.300 14.25 14.19 10.050 3.47342 4.95496 31.54 1486.03 1024.307 14.55 14.49 10.039 3.47286 4.95567 31.54 1486.01 1024.313 14.85 14.79 10.026 3.47233 4.95685 31.55 1485.97 1024.321 15.15 15.09 10.009 3.47172 4.95836 31.56 1485.92 1024.332 15.45 15.39 9.997 3.47281 4.96164 31.58 1485.91 1024.352 15.75 15.69 9.984 3.47275 4.96331 31.59 1485.88 1024.363 16.05 15.99 9.957 3.47134 4.96517 31.60 1485.80 1024.377 16.35 16.28 9.937 3.47054 4.96682 31.61 1485.74 1024.388 16.65 16.58 9.922 3.47079 4.96933 31.62 1485.71 1024.404 16.95 16.88 9.912 3.47060 4.97051 31.63 1485.69 1024.413 17.25 17.18 9.898 3.46959 4.97110 31.63 1485.64 1024.418 17.55 17.48 9.890 3.47006 4.97283 31.64 1485.64 1024.429 17.85 17.78 9.881 3.46930 4.97306 31.64 1485.61 1024.432 18.15 18.08 9.872 3.46939 4.97450 31.65 1485.59 1024.442 18.45 18.37 9.860 3.46920 4.97584 31.66 1485.56 1024.452 18.75 18.67 9.857 3.46923 4.97638 31.66 1485.56 1024.456 19.05 18.97 9.849 3.46908 4.97723 31.67 1485.54 1024.463 19.35 19.27 9.842 3.46931 4.97861 31.68 1485.53 1024.472 19.65 19.57 9.836 3.46961 4.97997 31.68 1485.52 1024.481 19.95 19.87 9.829 3.46950 4.98074 31.69 1485.51 1024.487 20.25 20.17 9.822 3.46984 4.98230 31.70 1485.50 1024.497 20.55 20.46 9.802 3.46791 4.98231 31.70 1485.43 1024.500 20.85 20.76 9.787 3.46696 4.98316 31.70 1485.38 1024.507 21.15 21.06 9.771 3.46781 4.98664 31.72 1485.36 1024.528 21.45 21.36 9.762 3.46751 4.98750 31.73 1485.34 1024.534 21.75 21.66 9.753 3.46756 4.98889 31.74 1485.32 1024.544 22.05 21.96 9.741 3.46752 4.99046 31.75 1485.29 1024.554 22.35 22.26 9.738 3.46744 4.99086 31.75 1485.29 1024.558 22.65 22.55 9.733 3.46810 4.99252 31.76 1485.29 1024.569 22.95 22.85 9.728 3.46735 4.99220 31.76 1485.27 1024.569 23.25 23.15 9.722 3.46753 4.99326 31.76 1485.26 1024.576 23.55 23.45 9.712 3.46724 4.99426 31.77 1485.24 1024.583 23.85 23.75 9.708 3.46701 4.99461 31.77 1485.23 1024.587 24.15 24.05 9.699 3.46707 4.99586 31.78 1485.21 1024.596 24.45 24.34 9.694 3.46622 4.99541 31.77 1485.19 1024.595 24.75 24.64 9.687 3.46651 4.99682 31.78 1485.18 1024.604 25.05 24.94 9.679 3.46567 4.99673 31.78 1485.16 1024.605 25.35 25.24 9.671 3.46409 4.99562 31.77 1485.12 1024.601 25.65 25.54 9.661 3.46502 4.99838 31.79 1485.11 1024.618 25.95 25.84 9.650 3.46453 4.99929 31.79 1485.08 1024.625 26.25 26.14 9.645 3.46474 5.00034 31.80 1485.08 1024.632 26.55 26.43 9.632 3.46421 5.00139 31.81 1485.04 1024.640 26.85 26.73 9.630 3.46429 5.00190 31.81 1485.04 1024.644 27.15 27.03 9.617 3.46447 5.00396 31.82 1485.02 1024.657 27.45 27.33 9.587 3.46320 5.00656 31.84 1484.93 1024.675 27.75 27.63 9.568 3.45997 5.00455 31.82 1484.84 1024.666 28.05 27.93 9.551 3.45993 5.00695 31.83 1484.81 1024.681 28.35 28.22 9.535 3.45905 5.00799 31.84 1484.76 1024.689 28.65 28.52 9.520 3.45795 5.00869 31.84 1484.71 1024.695 28.95 28.82 9.506 3.45690 5.00907 31.84 1484.67 1024.699 29.25 29.12 9.485 3.45466 5.00900 31.84 1484.59 1024.701 29.55 29.42 9.455 3.45465 5.01324 31.86 1484.52 1024.728 29.85 29.72 9.426 3.45493 5.01785 31.89 1484.45 1024.756 30.15 30.02 9.411 3.45398 5.01869 31.90 1484.40 1024.762 30.45 30.31 9.391 3.45387 5.02149 31.91 1484.35 1024.780 30.75 30.61 9.384 3.45221 5.02004 31.90 1484.32 1024.774 31.05 30.91 9.367 3.45226 5.02265 31.92 1484.28 1024.790 31.24 31.10 9.378 3.45495 5.02491 31.94 1484.35 1024.803