*2026/01/16 09:47:04.35 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2023/11/30 19:10:58.000 END TIME : UTC 2023/11/30 19:11:12.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 74 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 22.14 2 Depth metres 0.15 22.07 3 Temperature 'deg C (ITS90)' 10.57 11.546 4 Conductivity S/m 3.26544 3.50147 5 Conductance:Specific S/m 4.59009 4.79181 6 Salinity PSS-78 29.04 30.55 7 Speed:Sound m/s 1484.66 1490.29 8 Density kg/m^3 1022.212 1023.319 $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 : 2023-031 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 84 LATITUDE : 49 22.57190 N ! (deg min) LONGITUDE : 126 11.32250 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20231130_191058 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/15 13:40:52 74 74 MERGEHDR 1.3 2026/01/15 13:41:48 74 74 HDREDIT2 3.2 2026/01/15 14:00:56 ? ? REMOVECH 8.2 2026/01/15 14:01:18 74 74 CALIB 12.1 2026/01/16 09:46:08 74 74 CLEAN 5.3 2026/01/16 09:47:04 74 74 $END $REMARKS -HEADER EDITS: 2026/01/15 14:00:56 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 2026/01/15 14:01:18 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:46:08 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 09:47:01 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 10.580 3.28782 4.62033 29.25 1484.95 1022.374 0.45 0.45 10.570 3.26544 4.59009 29.04 1484.66 1022.212 0.75 0.75 10.599 3.28718 4.61692 29.23 1485.00 1022.357 1.05 1.05 10.630 3.29055 4.61767 29.24 1485.13 1022.360 1.35 1.35 10.653 3.29496 4.62088 29.26 1485.24 1022.377 1.65 1.65 10.661 3.29667 4.62223 29.27 1485.29 1022.385 1.95 1.94 10.667 3.30129 4.62799 29.31 1485.36 1022.417 2.25 2.24 10.678 3.30611 4.63326 29.35 1485.46 1022.446 2.55 2.54 10.718 3.31399 4.63909 29.40 1485.66 1022.476 2.85 2.84 10.830 3.32481 4.63976 29.41 1486.08 1022.471 3.15 3.14 10.881 3.33539 4.64783 29.48 1486.35 1022.512 3.45 3.44 10.902 3.33928 4.65053 29.50 1486.45 1022.526 3.75 3.74 11.043 3.35954 4.66046 29.58 1487.06 1022.570 4.05 4.04 11.139 3.37310 4.66681 29.64 1487.47 1022.597 4.35 4.34 11.195 3.38253 4.67264 29.68 1487.73 1022.625 4.65 4.64 11.243 3.38862 4.67480 29.70 1487.93 1022.634 4.95 4.93 11.275 3.39373 4.67782 29.73 1488.07 1022.648 5.25 5.23 11.328 3.40168 4.68194 29.76 1488.31 1022.667 5.55 5.53 11.346 3.40596 4.68540 29.79 1488.41 1022.686 5.85 5.83 11.375 3.41009 4.68742 29.80 1488.54 1022.695 6.15 6.13 11.405 3.41706 4.69314 29.85 1488.70 1022.725 6.45 6.43 11.422 3.42021 4.69528 29.86 1488.78 1022.736 6.75 6.73 11.431 3.42235 4.69709 29.88 1488.83 1022.747 7.05 7.03 11.444 3.42526 4.69937 29.90 1488.91 1022.759 7.35 7.33 11.451 3.42747 4.70147 29.91 1488.96 1022.771 7.65 7.63 11.455 3.43115 4.70601 29.94 1489.01 1022.797 7.95 7.93 11.476 3.43699 4.71134 29.98 1489.14 1022.826 8.25 8.22 11.484 3.44121 4.71602 30.02 1489.21 1022.852 8.55 8.52 11.491 3.44375 4.71863 30.04 1489.26 1022.867 8.85 8.82 11.501 3.45318 4.73029 30.12 1489.40 1022.931 9.15 9.12 11.512 3.46097 4.73946 30.18 1489.53 1022.981 9.45 9.42 11.516 3.46534 4.74491 30.22 1489.59 1023.012 9.75 9.72 11.516 3.46648 4.74655 30.23 1489.61 1023.022 10.05 10.02 11.509 3.46789 4.74940 30.25 1489.61 1023.040 10.35 10.32 11.498 3.46911 4.75248 30.27 1489.60 1023.059 10.65 10.62 11.473 3.46924 4.75595 30.30 1489.55 1023.082 10.95 10.91 11.449 3.46739 4.75651 30.30 1489.47 1023.088 11.25 11.21 11.433 3.46641 4.75719 30.30 1489.42 1023.095 11.55 11.51 11.428 3.46671 4.75830 30.31 1489.42 1023.103 11.85 11.81 11.426 3.46632 4.75806 30.31 1489.41 1023.103 12.15 12.11 11.429 3.46785 4.75971 30.32 1489.45 1023.113 12.45 12.41 11.432 3.46874 4.76052 30.32 1489.47 1023.118 12.75 12.71 11.437 3.47022 4.76198 30.33 1489.50 1023.127 13.05 13.01 11.447 3.47227 4.76340 30.35 1489.56 1023.135 13.35 13.31 11.448 3.47300 4.76438 30.35 1489.57 1023.142 13.65 13.60 11.441 3.47443 4.76723 30.37 1489.58 1023.159 13.95 13.90 11.449 3.47573 4.76795 30.38 1489.62 1023.164 14.25 14.20 11.445 3.47580 4.76851 30.38 1489.61 1023.169 14.55 14.50 11.436 3.47482 4.76834 30.38 1489.58 1023.170 14.85 14.80 11.436 3.47503 4.76862 30.38 1489.59 1023.173 15.15 15.10 11.439 3.47975 4.77473 30.42 1489.66 1023.207 15.45 15.40 11.441 3.48195 4.77751 30.44 1489.69 1023.223 15.75 15.70 11.446 3.48271 4.77792 30.45 1489.72 1023.227 16.05 16.00 11.451 3.48302 4.77772 30.45 1489.74 1023.226 16.35 16.29 11.449 3.48362 4.77871 30.45 1489.75 1023.233 16.65 16.59 11.445 3.48402 4.77977 30.46 1489.75 1023.241 16.95 16.89 11.444 3.48282 4.77837 30.45 1489.73 1023.234 17.25 17.19 11.442 3.48290 4.77866 30.45 1489.73 1023.237 17.55 17.49 11.446 3.48305 4.77842 30.45 1489.75 1023.237 17.85 17.79 11.454 3.48329 4.77760 30.44 1489.78 1023.233 18.15 18.09 11.467 3.48503 4.77829 30.45 1489.84 1023.237 18.45 18.39 11.475 3.48741 4.78054 30.47 1489.89 1023.250 18.75 18.69 11.486 3.49042 4.78329 30.49 1489.96 1023.265 19.05 18.98 11.500 3.49142 4.78282 30.49 1490.01 1023.262 19.35 19.28 11.508 3.49195 4.78245 30.48 1490.04 1023.261 19.65 19.58 11.508 3.49239 4.78308 30.49 1490.05 1023.265 19.95 19.88 11.505 3.49287 4.78409 30.49 1490.05 1023.272 20.25 20.18 11.510 3.49352 4.78428 30.50 1490.08 1023.274 20.55 20.48 11.502 3.49419 4.78632 30.51 1490.07 1023.287 20.85 20.78 11.506 3.49461 4.78641 30.51 1490.09 1023.289 21.15 21.08 11.507 3.49569 4.78767 30.52 1490.11 1023.297 21.45 21.38 11.513 3.49713 4.78886 30.53 1490.15 1023.304 21.75 21.67 11.536 3.50147 4.79181 30.55 1490.26 1023.319 22.14 22.07 11.546 3.50131 4.79025 30.54 1490.29 1023.311