*2026/01/16 09:57:49.71 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/04/25 17:32:36.000 END TIME : UTC 2024/04/25 17:32:45.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 46 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 13.69 2 Depth metres 0.15 13.71 3 Temperature 'deg C (ITS90)' 10.204 12.394 4 Conductivity S/m 2.00946 2.9116 5 Conductance:Specific S/m 2.68688 4.13418 6 Salinity PSS-78 16.22 25.83 7 Speed:Sound m/s 1475.9 1482.78 8 Density kg/m^3 1011.993 1019.834 $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 : 92 LATITUDE : 49 7.80670 N ! (deg min) LONGITUDE : 125 43.64230 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240425_173236 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:57 46 46 MERGEHDR 1.3 2026/01/16 09:53:50 46 46 HDREDIT2 3.2 2026/01/16 09:55:03 ? ? REMOVECH 8.2 2026/01/16 09:56:15 46 46 CALIB 12.1 2026/01/16 09:56:48 46 46 CLEAN 5.3 2026/01/16 09:57:49 46 46 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:03 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 09:56:15 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:48 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 12.394 2.00946 2.68688 16.22 1475.90 1011.993 0.45 0.45 12.384 2.01512 2.69516 16.27 1475.93 1012.037 0.75 0.76 12.394 2.01652 2.69635 16.28 1475.98 1012.043 1.05 1.06 12.393 2.02097 2.70233 16.32 1476.03 1012.075 1.35 1.36 12.391 2.02979 2.71424 16.40 1476.12 1012.137 1.65 1.66 12.381 2.05424 2.74768 16.62 1476.35 1012.310 1.95 1.96 12.367 2.07940 2.78237 16.85 1476.57 1012.490 2.25 2.27 12.360 2.11167 2.82612 17.14 1476.89 1012.716 2.55 2.57 12.340 2.15909 2.89115 17.57 1477.34 1013.052 2.85 2.87 12.317 2.21749 2.97117 18.10 1477.89 1013.467 3.15 3.17 12.272 2.40402 3.22494 19.80 1479.74 1014.785 3.45 3.47 12.173 2.62613 3.53227 21.87 1481.85 1016.403 3.75 3.77 12.037 2.74570 3.70666 23.05 1482.78 1017.339 4.05 4.07 11.842 2.78696 3.78229 23.55 1482.69 1017.763 4.35 4.37 11.609 2.84197 3.88146 24.22 1482.66 1018.316 4.65 4.67 11.454 2.85608 3.91737 24.45 1482.39 1018.525 4.95 4.97 11.295 2.86025 3.94027 24.60 1482.00 1018.664 5.25 5.27 11.193 2.86553 3.95871 24.71 1481.78 1018.773 5.55 5.57 11.088 2.87182 3.97895 24.84 1481.56 1018.893 5.85 5.88 10.973 2.87447 3.99533 24.95 1481.28 1018.992 6.15 6.18 10.890 2.87607 4.00680 25.02 1481.07 1019.063 6.45 6.48 10.765 2.88522 4.03362 25.19 1480.83 1019.218 6.75 6.78 10.575 2.88821 4.05936 25.35 1480.34 1019.374 7.05 7.08 10.540 2.88838 4.06352 25.38 1480.25 1019.400 7.35 7.38 10.526 2.89196 4.07022 25.42 1480.25 1019.439 7.65 7.68 10.509 2.89410 4.07514 25.45 1480.23 1019.468 7.95 7.98 10.456 2.89889 4.08804 25.54 1480.15 1019.542 8.25 8.28 10.416 2.90091 4.09548 25.58 1480.06 1019.587 8.55 8.58 10.398 2.90080 4.09741 25.60 1480.02 1019.600 8.85 8.88 10.386 2.90080 4.09883 25.60 1479.99 1019.610 9.15 9.17 10.362 2.90210 4.10346 25.63 1479.94 1019.638 9.45 9.47 10.333 2.90473 4.11054 25.68 1479.89 1019.679 9.75 9.77 10.321 2.90502 4.11233 25.69 1479.87 1019.691 10.05 10.07 10.317 2.90498 4.11268 25.69 1479.86 1019.694 10.35 10.37 10.316 2.90523 4.11324 25.70 1479.86 1019.699 10.65 10.67 10.312 2.90562 4.11426 25.70 1479.86 1019.706 10.95 10.97 10.306 2.90540 4.11460 25.71 1479.85 1019.710 11.25 11.27 10.298 2.90619 4.11669 25.72 1479.84 1019.723 11.55 11.57 10.284 2.90726 4.11980 25.74 1479.82 1019.742 11.85 11.87 10.276 2.90762 4.12123 25.75 1479.81 1019.751 12.15 12.17 10.272 2.90829 4.12268 25.76 1479.81 1019.761 12.45 12.47 10.270 2.91119 4.12702 25.79 1479.84 1019.785 12.75 12.77 10.248 2.91133 4.12974 25.80 1479.79 1019.803 13.05 13.07 10.241 2.91159 4.13099 25.81 1479.77 1019.812 13.35 13.37 10.214 2.91160 4.13411 25.83 1479.70 1019.832 13.69 13.71 10.204 2.91077 4.13418 25.83 1479.67 1019.834