*2026/01/16 09:47:01.81 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2023/08/29 22:16:20.000 END TIME : UTC 2023/08/29 22:16:27.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 40 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 11.99 2 Depth metres 0.15 11.96 3 Temperature 'deg C (ITS90)' 10.343 19.132 4 Conductivity S/m 2.01451 3.92448 5 Conductance:Specific S/m 2.28311 4.84272 6 Salinity PSS-78 13.73 30.78 7 Speed:Sound m/s 1486.11 1511.09 8 Density kg/m^3 1008.818 1023.66 $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 : 11 LATITUDE : 49 25.03120 N ! (deg min) LONGITUDE : 125 54.17080 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20230829_221620 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/15 13:40:51 40 40 MERGEHDR 1.3 2026/01/15 13:41:46 40 40 HDREDIT2 3.2 2026/01/15 14:00:53 ? ? REMOVECH 8.2 2026/01/15 14:01:17 40 40 CALIB 12.1 2026/01/16 09:46:00 40 40 CLEAN 5.3 2026/01/16 09:47:01 40 40 $END $REMARKS -HEADER EDITS: 2026/01/15 14:00:53 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 14:01:17 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:46:00 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 19.118 2.01451 2.28311 13.73 1495.18 1008.818 0.45 0.45 19.132 2.60249 2.94854 18.17 1500.19 1012.178 0.75 0.76 19.109 2.89627 3.28310 20.44 1502.67 1013.913 1.05 1.06 18.973 3.53490 4.01939 25.56 1507.99 1017.831 1.35 1.36 18.840 3.85426 4.39582 28.22 1510.60 1019.893 1.65 1.66 18.802 3.91638 4.47050 28.75 1511.09 1020.309 1.95 1.96 18.575 3.92448 4.50319 28.98 1510.69 1020.538 2.25 2.26 17.945 3.92319 4.56771 29.41 1509.32 1021.023 2.55 2.56 17.344 3.91053 4.61758 29.74 1507.90 1021.417 2.85 2.86 17.024 3.88711 4.62489 29.78 1506.98 1021.520 3.15 3.15 16.143 3.84474 4.67242 30.07 1504.61 1021.945 3.45 3.45 15.553 3.82680 4.71832 30.37 1503.10 1022.300 3.75 3.75 15.147 3.81015 4.74520 30.53 1502.01 1022.516 4.05 4.05 14.733 3.74983 4.71878 30.31 1500.43 1022.437 4.35 4.35 14.082 3.71260 4.74970 30.49 1498.52 1022.706 4.65 4.65 13.638 3.68792 4.77238 30.61 1497.21 1022.894 4.95 4.95 13.266 3.66042 4.78287 30.66 1496.03 1023.003 5.25 5.25 12.947 3.62357 4.77453 30.57 1494.86 1022.998 5.55 5.55 12.360 3.58721 4.80082 30.70 1493.03 1023.214 5.85 5.85 12.146 3.57458 4.81158 30.76 1492.36 1023.298 6.15 6.14 11.979 3.55617 4.80831 30.72 1491.74 1023.299 6.45 6.44 11.774 3.54122 4.81481 30.75 1491.07 1023.358 6.75 6.74 11.581 3.51760 4.80798 30.68 1490.32 1023.341 7.05 7.04 11.378 3.51090 4.82557 30.78 1489.74 1023.458 7.35 7.34 11.228 3.49195 4.81942 30.72 1489.14 1023.439 7.65 7.64 11.075 3.47329 4.81400 30.67 1488.54 1023.425 7.95 7.94 10.923 3.45669 4.81127 30.63 1487.96 1023.424 8.25 8.24 10.833 3.45170 4.81636 30.66 1487.68 1023.461 8.55 8.53 10.773 3.44999 4.82201 30.69 1487.51 1023.498 8.85 8.83 10.733 3.44907 4.82615 30.71 1487.40 1023.525 9.15 9.13 10.695 3.44741 4.82893 30.73 1487.29 1023.545 9.45 9.43 10.653 3.44453 4.83060 30.73 1487.15 1023.559 9.75 9.73 10.614 3.43993 4.82950 30.72 1487.00 1023.557 10.05 10.03 10.562 3.43462 4.82902 30.71 1486.81 1023.560 10.35 10.33 10.501 3.42926 4.82983 30.71 1486.59 1023.570 10.65 10.63 10.465 3.42916 4.83463 30.74 1486.50 1023.601 10.95 10.92 10.468 3.42743 4.83166 30.72 1486.50 1023.585 11.25 11.22 10.444 3.42255 4.82812 30.69 1486.38 1023.569 11.55 11.52 10.355 3.41841 4.83435 30.73 1486.11 1023.611 11.99 11.96 10.343 3.42313 4.84272 30.78 1486.14 1023.660