*2026/01/16 09:57:51.65 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/06/11 21:18:51.000 END TIME : UTC 2024/06/11 21:19:00.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 50 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 14.87 2 Depth metres 0.15 14.83 3 Temperature 'deg C (ITS90)' 10.086 15.976 4 Conductivity S/m 2.82215 3.5566 5 Conductance:Specific S/m 3.44584 4.98671 6 Salinity PSS-78 21.47 31.77 7 Speed:Sound m/s 1486.45 1496.23 8 Density kg/m^3 1015.376 1024.482 $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 : 147 LATITUDE : 48 54.79630 N ! (deg min) LONGITUDE : 125 0.93410 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240611_211851 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:01 50 50 MERGEHDR 1.3 2026/01/16 09:53:54 50 50 HDREDIT2 3.2 2026/01/16 09:55:06 ? ? REMOVECH 8.2 2026/01/16 09:56:18 50 50 CALIB 12.1 2026/01/16 09:56:51 50 50 CLEAN 5.3 2026/01/16 09:57:51 50 50 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:06 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 09:56:18 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:51 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 15.976 2.82391 3.44584 21.47 1494.15 1015.376 0.45 0.45 15.953 2.82302 3.44667 21.47 1494.09 1015.385 0.75 0.75 15.942 2.82332 3.44792 21.48 1494.07 1015.395 1.05 1.05 15.901 2.82215 3.44996 21.49 1493.95 1015.414 1.35 1.36 15.851 2.82298 3.45525 21.53 1493.83 1015.452 1.65 1.66 15.832 2.82389 3.45794 21.55 1493.80 1015.471 1.95 1.96 15.812 2.82376 3.45949 21.56 1493.75 1015.484 2.25 2.26 15.810 2.82320 3.45894 21.55 1493.75 1015.482 2.55 2.56 15.811 2.82508 3.46120 21.57 1493.77 1015.496 2.85 2.86 15.797 2.82941 3.46768 21.61 1493.78 1015.533 3.15 3.16 15.778 2.83528 3.47644 21.67 1493.79 1015.584 3.45 3.46 15.512 2.85735 3.52652 22.00 1493.32 1015.894 3.75 3.76 15.130 3.19750 3.98394 25.15 1495.72 1018.386 4.05 4.06 14.871 3.31099 4.15217 26.31 1496.23 1019.332 4.35 4.36 14.519 3.34283 4.22942 26.83 1495.69 1019.805 4.65 4.66 13.911 3.40411 4.37422 27.81 1494.83 1020.680 4.95 4.96 13.361 3.51163 4.57704 29.20 1494.63 1021.861 5.25 5.26 12.970 3.55636 4.68309 29.92 1494.17 1022.493 5.55 5.56 12.511 3.55660 4.74069 30.29 1493.05 1022.866 5.85 5.86 12.220 3.55654 4.77772 30.53 1492.34 1023.104 6.15 6.16 11.900 3.55402 4.81581 30.77 1491.52 1023.349 6.45 6.46 11.612 3.54493 4.84119 30.92 1490.71 1023.519 6.75 6.76 11.354 3.53572 4.86295 31.04 1489.96 1023.665 7.05 7.06 11.159 3.52777 4.87815 31.13 1489.38 1023.768 7.35 7.35 10.937 3.51902 4.89614 31.23 1488.73 1023.887 7.65 7.65 10.784 3.51493 4.91132 31.32 1488.30 1023.985 7.95 7.95 10.685 3.51291 4.92209 31.39 1488.03 1024.053 8.25 8.25 10.583 3.51167 4.93448 31.46 1487.76 1024.131 8.55 8.55 10.530 3.51046 4.94017 31.50 1487.62 1024.167 8.85 8.85 10.508 3.51088 4.94382 31.52 1487.57 1024.190 9.15 9.15 10.491 3.51016 4.94520 31.53 1487.52 1024.201 9.45 9.44 10.461 3.50845 4.94685 31.53 1487.43 1024.213 9.75 9.74 10.441 3.50710 4.94776 31.54 1487.37 1024.221 10.05 10.04 10.416 3.50535 4.94883 31.54 1487.29 1024.230 10.35 10.34 10.383 3.50647 4.95498 31.58 1487.22 1024.267 10.65 10.64 10.363 3.50604 4.95715 31.59 1487.17 1024.282 10.95 10.94 10.342 3.50680 4.96118 31.62 1487.13 1024.307 11.25 11.24 10.321 3.50668 4.96403 31.64 1487.08 1024.326 11.55 11.53 10.295 3.50727 4.96848 31.67 1487.03 1024.353 11.85 11.83 10.264 3.50563 4.97057 31.68 1486.94 1024.368 12.15 12.13 10.236 3.50385 4.97204 31.68 1486.85 1024.380 12.45 12.43 10.198 3.50327 4.97656 31.71 1486.75 1024.408 12.75 12.73 10.157 3.50316 4.98215 31.74 1486.65 1024.443 13.05 13.03 10.137 3.49860 4.97855 31.72 1486.55 1024.426 13.35 13.33 10.132 3.49947 4.98047 31.73 1486.55 1024.438 13.65 13.62 10.128 3.50167 4.98418 31.75 1486.57 1024.460 13.95 13.92 10.127 3.50263 4.98572 31.77 1486.58 1024.470 14.25 14.22 10.124 3.50124 4.98406 31.75 1486.56 1024.462 14.55 14.52 10.105 3.50019 4.98534 31.76 1486.51 1024.472 14.87 14.83 10.086 3.49927 4.98671 31.77 1486.45 1024.482