*2026/01/16 09:57:57.21 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/11/26 17:06:43.000 END TIME : UTC 2024/11/26 17:06:59.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 84 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 25.17 2 Depth metres 0.15 25.1 3 Temperature 'deg C (ITS90)' 8.811 10.878 4 Conductivity S/m 2.7405 3.45487 5 Conductance:Specific S/m 4.05004 4.81573 6 Salinity PSS-78 25.11 30.65 7 Speed:Sound m/s 1473.44 1488.08 8 Density kg/m^3 1019.414 1023.524 $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 : 307 LATITUDE : 48 52.66420 N ! (deg min) LONGITUDE : 125 17.57140 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20241126_170643 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:09 84 84 MERGEHDR 1.3 2026/01/16 09:54:12 84 84 HDREDIT2 3.2 2026/01/16 09:55:15 ? ? REMOVECH 8.2 2026/01/16 09:56:25 84 84 CALIB 12.1 2026/01/16 09:56:59 84 84 CLEAN 5.3 2026/01/16 09:57:57 84 84 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:15 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 09:56:25 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:59 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 8.866 2.74344 4.05039 25.12 1473.59 1019.414 0.45 0.45 8.833 2.74050 4.05004 25.11 1473.46 1019.415 0.75 0.75 8.811 2.74373 4.05745 25.16 1473.44 1019.457 1.05 1.05 8.826 2.74317 4.05485 25.15 1473.48 1019.444 1.35 1.35 8.835 2.74335 4.05397 25.14 1473.52 1019.440 1.65 1.65 8.841 2.74321 4.05308 25.14 1473.54 1019.436 1.95 1.95 8.833 2.74410 4.05531 25.15 1473.53 1019.450 2.25 2.25 8.831 2.74424 4.05577 25.15 1473.53 1019.454 2.55 2.55 8.842 2.74500 4.05564 25.15 1473.58 1019.454 2.85 2.85 8.858 2.74719 4.05687 25.16 1473.66 1019.461 3.15 3.15 8.879 2.74840 4.05617 25.16 1473.74 1019.457 3.45 3.45 8.914 2.75063 4.05525 25.16 1473.87 1019.452 3.75 3.75 8.984 2.76187 4.06354 25.22 1474.22 1019.494 4.05 4.05 9.051 2.78605 4.09097 25.42 1474.72 1019.638 4.35 4.35 9.089 2.79908 4.10557 25.52 1474.99 1019.715 4.65 4.65 9.190 2.82592 4.13262 25.72 1475.62 1019.855 4.95 4.95 9.346 2.88928 4.20618 26.24 1476.84 1020.241 5.25 5.25 9.483 2.92471 4.24081 26.49 1477.67 1020.420 5.55 5.55 9.596 3.07544 4.44475 27.91 1479.83 1021.513 5.85 5.85 9.785 3.10081 4.45707 28.02 1480.66 1021.569 6.15 6.15 9.939 3.16043 4.52281 28.50 1481.80 1021.917 6.45 6.45 10.046 3.18628 4.54589 28.67 1482.41 1022.036 6.75 6.75 10.101 3.23815 4.61258 29.14 1483.19 1022.396 7.05 7.04 10.207 3.27880 4.65640 29.46 1483.97 1022.629 7.35 7.34 10.272 3.28284 4.65365 29.45 1484.19 1022.610 7.65 7.64 10.311 3.28499 4.65152 29.44 1484.32 1022.597 7.95 7.94 10.343 3.28639 4.64926 29.42 1484.43 1022.584 8.25 8.24 10.364 3.28957 4.65102 29.44 1484.53 1022.593 8.55 8.54 10.380 3.29187 4.65222 29.45 1484.60 1022.600 8.85 8.84 10.388 3.30014 4.66280 29.52 1484.73 1022.658 9.15 9.14 10.403 3.30090 4.66187 29.52 1484.78 1022.653 9.45 9.44 10.428 3.31045 4.67202 29.59 1484.97 1022.708 9.75 9.74 10.449 3.31668 4.67809 29.64 1485.10 1022.741 10.05 10.04 10.480 3.32955 4.69218 29.74 1485.34 1022.816 10.35 10.33 10.515 3.34056 4.70300 29.82 1485.57 1022.874 10.65 10.63 10.553 3.34955 4.71066 29.88 1485.78 1022.914 10.95 10.93 10.588 3.35677 4.71620 29.92 1485.96 1022.943 11.25 11.23 10.614 3.36839 4.72901 30.01 1486.17 1023.012 11.55 11.53 10.635 3.37277 4.73241 30.04 1486.28 1023.031 11.85 11.83 10.652 3.37542 4.73391 30.05 1486.36 1023.039 12.15 12.13 10.660 3.37610 4.73371 30.05 1486.40 1023.038 12.45 12.43 10.667 3.37642 4.73328 30.05 1486.42 1023.037 12.75 12.73 10.676 3.37820 4.73463 30.06 1486.47 1023.045 13.05 13.02 10.683 3.38246 4.73953 30.09 1486.55 1023.072 13.35 13.32 10.697 3.38924 4.74724 30.15 1486.67 1023.114 13.65 13.62 10.712 3.39183 4.74887 30.16 1486.74 1023.123 13.95 13.92 10.723 3.40035 4.75937 30.24 1486.88 1023.181 14.25 14.22 10.739 3.40237 4.76006 30.24 1486.95 1023.185 14.55 14.52 10.747 3.40476 4.76231 30.26 1487.00 1023.198 14.85 14.82 10.758 3.40805 4.76544 30.28 1487.07 1023.216 15.15 15.12 10.762 3.41155 4.76975 30.32 1487.13 1023.240 15.45 15.42 10.771 3.41275 4.77031 30.32 1487.17 1023.244 15.75 15.71 10.780 3.41563 4.77306 30.34 1487.24 1023.259 16.05 16.01 10.789 3.41696 4.77378 30.35 1487.28 1023.264 16.35 16.31 10.798 3.41976 4.77650 30.37 1487.34 1023.279 16.65 16.61 10.804 3.42290 4.78005 30.39 1487.40 1023.299 16.95 16.91 10.809 3.42507 4.78248 30.41 1487.44 1023.314 17.25 17.21 10.818 3.42639 4.78306 30.41 1487.48 1023.317 17.55 17.51 10.822 3.42722 4.78373 30.42 1487.51 1023.322 17.85 17.81 10.825 3.42667 4.78257 30.41 1487.51 1023.317 18.15 18.11 10.830 3.42802 4.78373 30.42 1487.55 1023.324 18.45 18.40 10.839 3.43100 4.78665 30.44 1487.61 1023.340 18.75 18.70 10.840 3.43387 4.79053 30.47 1487.65 1023.363 19.05 19.00 10.847 3.43556 4.79196 30.48 1487.70 1023.371 19.35 19.30 10.852 3.43656 4.79270 30.49 1487.73 1023.376 19.65 19.60 10.857 3.43736 4.79318 30.49 1487.75 1023.380 19.95 19.90 10.860 3.43803 4.79375 30.49 1487.77 1023.384 20.25 20.20 10.862 3.43908 4.79486 30.50 1487.80 1023.391 20.55 20.50 10.863 3.43915 4.79490 30.50 1487.80 1023.393 20.85 20.80 10.863 3.43945 4.79527 30.50 1487.81 1023.396 21.15 21.09 10.864 3.44106 4.79734 30.52 1487.84 1023.408 21.45 21.39 10.869 3.44127 4.79694 30.52 1487.86 1023.407 21.75 21.69 10.871 3.44263 4.79860 30.53 1487.88 1023.417 22.05 21.99 10.872 3.44454 4.80121 30.55 1487.91 1023.433 22.35 22.29 10.875 3.44548 4.80208 30.55 1487.94 1023.438 22.65 22.59 10.874 3.44648 4.80354 30.56 1487.95 1023.448 22.95 22.89 10.868 3.44723 4.80539 30.58 1487.95 1023.460 23.25 23.19 10.869 3.44809 4.80654 30.58 1487.97 1023.467 23.55 23.48 10.872 3.44842 4.80659 30.58 1487.98 1023.469 23.85 23.78 10.875 3.44917 4.80726 30.59 1488.00 1023.473 24.15 24.08 10.872 3.45305 4.81299 30.63 1488.05 1023.506 24.45 24.38 10.878 3.45321 4.81246 30.63 1488.07 1023.504 24.75 24.68 10.871 3.45487 4.81573 30.65 1488.08 1023.524 25.17 25.10 10.870 3.45236 4.81229 30.62 1488.05 1023.507