*2026/01/16 09:47:06.07 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2023/12/20 22:25:41.000 END TIME : UTC 2023/12/20 22:26:02.000 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 31.66 2 Depth metres 0.15 31.53 3 Temperature 'deg C (ITS90)' 9.497 11.409 4 Conductivity S/m 2.37626 3.65843 5 Conductance:Specific S/m 3.4442 5.02939 6 Salinity PSS-78 21.08 32.2 7 Speed:Sound m/s 1471.06 1491.89 8 Density kg/m^3 1016.178 1024.717 $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 : 117 LATITUDE : 50 27.53790 N ! (deg min) LONGITUDE : 127 32.71120 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20231220_222541 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/15 13:40:53 106 106 MERGEHDR 1.3 2026/01/15 13:41:49 106 106 HDREDIT2 3.2 2026/01/15 14:00:58 ? ? REMOVECH 8.2 2026/01/15 14:01:19 106 106 CALIB 12.1 2026/01/16 09:46:13 106 106 CLEAN 5.3 2026/01/16 09:47:06 106 106 $END $REMARKS -HEADER EDITS: 2026/01/15 14:00:58 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 14:01:19 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:46:13 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 9.497 2.37626 3.44420 21.08 1471.06 1016.178 0.45 0.45 9.588 2.43777 3.52406 21.62 1472.07 1016.591 0.75 0.75 9.661 2.67453 3.85815 23.89 1475.10 1018.347 1.05 1.05 9.805 2.91762 4.19143 26.19 1478.43 1020.116 1.35 1.35 9.914 3.01403 4.31640 27.06 1479.89 1020.782 1.65 1.65 10.078 3.21354 4.58060 28.92 1482.75 1022.202 1.95 1.95 10.199 3.27725 4.65531 29.45 1483.84 1022.602 2.25 2.25 10.252 3.29889 4.67897 29.62 1484.25 1022.728 2.55 2.55 10.273 3.30464 4.68441 29.67 1484.38 1022.758 2.85 2.85 10.289 3.31205 4.69282 29.73 1484.51 1022.804 3.15 3.15 10.292 3.31309 4.69379 29.73 1484.54 1022.810 3.45 3.44 10.300 3.31699 4.69828 29.77 1484.61 1022.835 3.75 3.74 10.314 3.32022 4.70097 29.79 1484.69 1022.850 4.05 4.04 10.332 3.32823 4.70993 29.85 1484.84 1022.899 4.35 4.34 10.352 3.33595 4.71823 29.91 1484.99 1022.944 4.65 4.64 10.366 3.34142 4.72403 29.95 1485.10 1022.976 4.95 4.94 10.382 3.34645 4.72907 29.99 1485.20 1023.004 5.25 5.24 10.395 3.34956 4.73167 30.01 1485.28 1023.018 5.55 5.54 10.401 3.35491 4.73841 30.06 1485.37 1023.056 5.85 5.84 10.410 3.35782 4.74134 30.08 1485.43 1023.073 6.15 6.13 10.418 3.35982 4.74315 30.09 1485.48 1023.083 6.45 6.43 10.423 3.36445 4.74891 30.13 1485.55 1023.116 6.75 6.73 10.440 3.36797 4.75161 30.15 1485.64 1023.131 7.05 7.03 10.453 3.37124 4.75458 30.18 1485.72 1023.147 7.35 7.33 10.462 3.37348 4.75652 30.19 1485.78 1023.158 7.65 7.63 10.491 3.37705 4.75768 30.20 1485.90 1023.164 7.95 7.93 10.508 3.38097 4.76081 30.23 1486.00 1023.181 8.25 8.23 10.542 3.38996 4.76896 30.29 1486.20 1023.224 8.55 8.53 10.560 3.39317 4.77100 30.30 1486.29 1023.235 8.85 8.82 10.568 3.39486 4.77229 30.31 1486.33 1023.243 9.15 9.12 10.574 3.39501 4.77180 30.31 1486.35 1023.241 9.45 9.42 10.574 3.39590 4.77305 30.32 1486.37 1023.249 9.75 9.72 10.573 3.39602 4.77325 30.32 1486.37 1023.252 10.05 10.02 10.573 3.39681 4.77440 30.33 1486.39 1023.259 10.35 10.32 10.580 3.39881 4.77625 30.34 1486.43 1023.270 10.65 10.62 10.585 3.40101 4.77871 30.36 1486.48 1023.284 10.95 10.92 10.598 3.40287 4.77952 30.37 1486.54 1023.289 11.25 11.22 10.608 3.40416 4.78003 30.37 1486.58 1023.292 11.55 11.51 10.614 3.40530 4.78082 30.38 1486.62 1023.297 11.85 11.81 10.620 3.40733 4.78291 30.39 1486.66 1023.310 12.15 12.11 10.629 3.41055 4.78615 30.42 1486.73 1023.328 12.45 12.41 10.641 3.41713 4.79377 30.47 1486.84 1023.370 12.75 12.71 10.652 3.41976 4.79598 30.49 1486.91 1023.383 13.05 13.01 10.658 3.42196 4.79831 30.51 1486.95 1023.396 13.35 13.31 10.670 3.42514 4.80121 30.53 1487.03 1023.413 13.65 13.61 10.685 3.43358 4.81101 30.60 1487.17 1023.466 13.95 13.90 10.700 3.43519 4.81115 30.60 1487.23 1023.467 14.25 14.20 10.705 3.43662 4.81250 30.61 1487.27 1023.475 14.55 14.50 10.701 3.43554 4.81149 30.60 1487.25 1023.471 14.85 14.80 10.702 3.43759 4.81423 30.62 1487.28 1023.488 15.15 15.10 10.703 3.43855 4.81555 30.63 1487.30 1023.496 15.45 15.40 10.732 3.44522 4.82091 30.67 1487.46 1023.524 15.75 15.70 10.760 3.45141 4.82576 30.71 1487.61 1023.550 16.05 16.00 10.765 3.45222 4.82624 30.71 1487.64 1023.554 16.35 16.29 10.751 3.45022 4.82538 30.71 1487.58 1023.551 16.65 16.59 10.734 3.44952 4.82672 30.71 1487.53 1023.561 16.95 16.89 10.736 3.45351 4.83203 30.75 1487.59 1023.592 17.25 17.19 10.756 3.45822 4.83579 30.78 1487.70 1023.612 17.55 17.49 10.823 3.46673 4.83876 30.81 1487.98 1023.624 17.85 17.79 10.863 3.47987 4.85156 30.90 1488.24 1023.692 18.15 18.09 10.897 3.48799 4.85837 30.96 1488.43 1023.728 18.45 18.39 10.922 3.49251 4.86123 30.98 1488.55 1023.743 18.75 18.68 10.933 3.49828 4.86772 31.03 1488.65 1023.779 19.05 18.98 10.952 3.50211 4.87046 31.05 1488.75 1023.794 19.35 19.28 10.973 3.50508 4.87181 31.06 1488.84 1023.801 19.65 19.58 10.983 3.50982 4.87711 31.10 1488.93 1023.830 19.95 19.88 10.992 3.51668 4.88539 31.16 1489.04 1023.876 20.25 20.18 11.001 3.52275 4.89258 31.21 1489.14 1023.916 20.55 20.48 11.021 3.52929 4.89892 31.26 1489.27 1023.951 20.85 20.77 11.038 3.53838 4.90920 31.33 1489.43 1024.007 21.15 21.07 11.074 3.55606 4.92879 31.47 1489.73 1024.113 21.45 21.37 11.143 3.56334 4.92947 31.49 1489.99 1024.112 21.75 21.67 11.194 3.57114 4.93332 31.52 1490.22 1024.130 22.05 21.97 11.227 3.58175 4.94350 31.59 1490.43 1024.185 22.35 22.27 11.269 3.58825 4.94668 31.62 1490.62 1024.200 22.65 22.57 11.308 3.59535 4.95112 31.66 1490.80 1024.222 22.95 22.86 11.323 3.59820 4.95307 31.67 1490.88 1024.233 23.25 23.16 11.324 3.59985 4.95521 31.69 1490.90 1024.246 23.55 23.46 11.329 3.60136 4.95661 31.70 1490.94 1024.254 23.85 23.76 11.336 3.60507 4.96069 31.73 1491.00 1024.277 24.15 24.06 11.338 3.60714 4.96336 31.75 1491.04 1024.293 24.45 24.36 11.346 3.61832 4.97761 31.85 1491.19 1024.372 24.75 24.66 11.356 3.62245 4.98197 31.88 1491.27 1024.397 25.05 24.95 11.369 3.62588 4.98483 31.90 1491.35 1024.413 25.35 25.25 11.379 3.63033 4.98959 31.94 1491.43 1024.439 25.65 25.55 11.383 3.63315 4.99287 31.96 1491.48 1024.458 25.95 25.85 11.391 3.63844 4.99908 32.01 1491.56 1024.493 26.25 26.15 11.393 3.64010 5.00111 32.02 1491.59 1024.505 26.55 26.45 11.391 3.64416 5.00696 32.06 1491.64 1024.539 26.85 26.75 11.393 3.64627 5.00958 32.08 1491.67 1024.555 27.15 27.04 11.397 3.64775 5.01104 32.09 1491.71 1024.564 27.45 27.34 11.396 3.64917 5.01316 32.11 1491.73 1024.577 27.75 27.64 11.395 3.65066 5.01535 32.12 1491.74 1024.590 28.05 27.94 11.394 3.65206 5.01733 32.14 1491.77 1024.603 28.35 28.24 11.388 3.65373 5.02046 32.16 1491.78 1024.622 28.65 28.54 11.376 3.65643 5.02590 32.19 1491.78 1024.654 28.95 28.83 11.394 3.65843 5.02608 32.20 1491.85 1024.655 29.25 29.13 11.409 3.65796 5.02344 32.18 1491.89 1024.640 29.55 29.43 11.403 3.65265 5.01694 32.13 1491.82 1024.606 29.85 29.73 11.369 3.64155 5.00642 32.05 1491.61 1024.552 30.15 30.03 11.256 3.63934 5.01896 32.13 1491.31 1024.633 30.45 30.33 11.172 3.63537 5.02507 32.16 1491.06 1024.676 30.75 30.62 11.112 3.63066 5.02689 32.17 1490.86 1024.692 31.05 30.92 11.068 3.62631 5.02706 32.17 1490.71 1024.698 31.35 31.22 11.012 3.62241 5.02939 32.18 1490.53 1024.717 31.66 31.53 10.987 3.61920 5.02842 32.17 1490.43 1024.715