*2026/01/16 09:47:02.63 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2023/11/07 23:01:19.000 END TIME : UTC 2023/11/07 23:01:26.800 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 11.82 2 Depth metres 0.15 11.81 3 Temperature 'deg C (ITS90)' 11.506 13.117 4 Conductivity S/m 0.72562 3.88349 5 Conductance:Specific S/m 0.98873 5.11427 6 Salinity PSS-78 5.49 33 7 Speed:Sound m/s 1459.89 1497.96 8 Density kg/m^3 1003.807 1024.904 $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 : 44 LATITUDE : 48 58.80320 N ! (deg min) LONGITUDE : 124 59.65750 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20231107_230119 ! 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 13:41:47 40 40 HDREDIT2 3.2 2026/01/15 14:00:54 ? ? REMOVECH 8.2 2026/01/15 14:01:17 40 40 CALIB 12.1 2026/01/16 09:46:03 40 40 CLEAN 5.3 2026/01/16 09:47:02 40 40 $END $REMARKS -HEADER EDITS: 2026/01/15 14:00:54 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 09:46:03 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 11.506 0.72658 0.99515 5.53 1459.89 1003.857 0.45 0.46 11.695 0.72562 0.98873 5.49 1460.56 1003.807 0.75 0.76 11.972 1.05258 1.42347 8.14 1464.77 1005.817 1.05 1.07 12.032 1.32694 1.79162 10.43 1467.73 1007.584 1.35 1.37 12.054 1.43160 1.93178 11.32 1468.87 1008.268 1.65 1.67 12.097 1.45849 1.96581 11.54 1469.29 1008.431 1.95 1.97 12.134 1.55777 2.09750 12.38 1470.43 1009.077 2.25 2.28 12.182 2.09563 2.81803 17.08 1476.19 1012.696 2.55 2.58 12.340 2.66220 3.56479 22.10 1482.70 1016.550 2.85 2.88 12.528 2.95463 3.93653 24.66 1486.40 1018.499 3.15 3.18 12.637 3.12837 4.15597 26.19 1488.59 1019.663 3.45 3.48 12.700 3.25711 4.31982 27.34 1490.17 1020.540 3.75 3.78 12.756 3.45319 4.57304 29.13 1492.48 1021.911 4.05 4.08 12.864 3.58396 4.73270 30.27 1494.20 1022.774 4.35 4.38 12.944 3.63504 4.78999 30.68 1494.96 1023.080 4.65 4.68 12.992 3.67043 4.83047 30.97 1495.48 1023.298 4.95 4.97 13.022 3.71075 4.87976 31.33 1496.00 1023.568 5.25 5.27 13.050 3.74040 4.91505 31.58 1496.40 1023.761 5.55 5.57 13.071 3.75081 4.92612 31.66 1496.57 1023.821 5.85 5.87 13.080 3.76354 4.94160 31.77 1496.74 1023.906 6.15 6.17 13.082 3.78917 4.97501 32.01 1497.03 1024.092 6.45 6.47 13.092 3.80977 5.00071 32.20 1497.29 1024.235 6.75 6.77 13.108 3.81695 5.00803 32.25 1497.41 1024.275 7.05 7.07 13.115 3.82415 5.01655 32.31 1497.51 1024.322 7.35 7.36 13.110 3.83129 5.02656 32.39 1497.59 1024.380 7.65 7.66 13.112 3.83751 5.03453 32.44 1497.66 1024.425 7.95 7.96 13.117 3.84145 5.03906 32.48 1497.72 1024.451 8.25 8.26 13.107 3.84701 5.04769 32.54 1497.77 1024.501 8.55 8.56 13.087 3.85216 5.05702 32.60 1497.78 1024.557 8.85 8.86 13.076 3.85439 5.06139 32.63 1497.79 1024.584 9.15 9.15 13.065 3.85547 5.06432 32.65 1497.78 1024.603 9.45 9.45 13.034 3.85397 5.06652 32.66 1497.69 1024.620 9.75 9.75 13.004 3.85416 5.07073 32.69 1497.63 1024.648 10.05 10.05 12.988 3.85446 5.07319 32.71 1497.60 1024.665 10.35 10.35 12.962 3.86016 5.08427 32.78 1497.61 1024.731 10.65 10.65 12.943 3.86585 5.09422 32.85 1497.64 1024.790 10.95 10.95 12.937 3.88041 5.11427 33.00 1497.79 1024.904 11.25 11.24 12.992 3.88349 5.11088 32.98 1497.96 1024.879 11.55 11.54 12.955 3.86950 5.09742 32.88 1497.72 1024.810 11.82 11.81 12.881 3.86815 5.10560 32.93 1497.54 1024.866