*2026/01/16 09:57:53.64 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/08/14 17:42:10.000 END TIME : UTC 2024/08/14 17:42:19.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 48 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 14.26 2 Depth metres 0.15 14.27 3 Temperature 'deg C (ITS90)' 10.472 20.514 4 Conductivity S/m 1.1348 3.60492 5 Conductance:Specific S/m 1.25592 4.97647 6 Salinity PSS-78 7.19 31.74 7 Speed:Sound m/s 1487.8 1503.58 8 Density kg/m^3 1003.627 1024.395 $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 : 202 LATITUDE : 49 13.79750 N ! (deg min) LONGITUDE : 124 49.54380 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240814_174210 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:04 48 48 MERGEHDR 1.3 2026/01/16 09:54:00 48 48 HDREDIT2 3.2 2026/01/16 09:55:09 ? ? REMOVECH 8.2 2026/01/16 09:56:20 48 48 CALIB 12.1 2026/01/16 09:56:53 48 48 CLEAN 5.3 2026/01/16 09:57:53 48 48 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:09 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 09:56:20 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:53 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 20.178 1.13480 1.25592 7.19 1491.05 1003.627 0.45 0.46 20.190 1.14801 1.27021 7.28 1491.19 1003.692 0.75 0.76 20.228 1.30655 1.44441 8.36 1492.52 1004.505 1.05 1.07 20.152 1.47505 1.63343 9.55 1493.63 1005.424 1.35 1.37 20.144 1.65192 1.82960 10.80 1495.00 1006.373 1.65 1.67 20.216 1.77739 1.96545 11.68 1496.19 1007.019 1.95 1.98 20.320 1.89540 2.09115 12.49 1497.41 1007.614 2.25 2.28 20.360 2.11101 2.32693 14.04 1499.24 1008.772 2.55 2.58 20.425 2.29575 2.52698 15.36 1500.90 1009.759 2.85 2.89 20.514 2.39129 2.62701 16.03 1501.90 1010.244 3.15 3.19 20.403 2.45494 2.70349 16.54 1502.15 1010.658 3.45 3.49 20.181 2.57112 2.84534 17.49 1502.57 1011.431 3.75 3.79 19.840 2.72611 3.03981 18.80 1503.03 1012.505 4.05 4.10 19.380 2.92023 3.29007 20.50 1503.58 1013.904 4.35 4.40 18.507 3.11706 3.58228 22.49 1503.23 1015.623 4.65 4.70 17.662 3.37233 3.95239 25.04 1503.56 1017.761 4.95 5.00 16.860 3.46108 4.13416 26.29 1502.52 1018.893 5.25 5.30 15.850 3.55137 4.34689 27.74 1501.04 1020.227 5.55 5.60 14.937 3.59111 4.49598 28.74 1499.29 1021.192 5.85 5.90 14.121 3.60355 4.60569 29.46 1497.48 1021.916 6.15 6.20 13.263 3.60492 4.71070 30.14 1495.43 1022.611 6.45 6.50 12.754 3.59463 4.76056 30.45 1494.09 1022.950 6.75 6.79 12.436 3.58991 4.79478 30.67 1493.26 1023.177 7.05 7.09 12.165 3.58678 4.82544 30.86 1492.57 1023.377 7.35 7.39 11.900 3.58189 4.85354 31.03 1491.86 1023.562 7.65 7.69 11.695 3.57379 4.86962 31.13 1491.27 1023.672 7.95 7.99 11.487 3.56497 4.88527 31.21 1490.65 1023.780 8.25 8.29 11.340 3.56004 4.89827 31.29 1490.23 1023.867 8.55 8.59 11.209 3.55693 4.91167 31.37 1489.88 1023.954 8.85 8.89 11.097 3.55043 4.91797 31.40 1489.52 1024.000 9.15 9.18 10.993 3.54692 4.92727 31.46 1489.23 1024.062 9.45 9.48 10.923 3.54547 4.93477 31.50 1489.04 1024.110 9.75 9.78 10.863 3.54313 4.93985 31.53 1488.87 1024.144 10.05 10.08 10.797 3.54146 4.94658 31.57 1488.69 1024.188 10.35 10.38 10.734 3.53900 4.95181 31.60 1488.50 1024.223 10.65 10.68 10.708 3.53720 4.95296 31.61 1488.42 1024.233 10.95 10.98 10.663 3.53568 4.95709 31.63 1488.29 1024.261 11.25 11.27 10.629 3.53596 4.96222 31.66 1488.22 1024.293 11.55 11.57 10.606 3.53434 4.96308 31.67 1488.14 1024.301 11.85 11.87 10.592 3.53384 4.96440 31.67 1488.11 1024.310 12.15 12.17 10.578 3.53343 4.96582 31.68 1488.07 1024.320 12.45 12.47 10.548 3.53442 4.97137 31.72 1488.01 1024.355 12.75 12.77 10.541 3.53091 4.96744 31.69 1487.96 1024.335 13.05 13.07 10.542 3.53040 4.96645 31.68 1487.96 1024.330 13.35 13.36 10.526 3.53122 4.96998 31.70 1487.93 1024.352 13.65 13.66 10.509 3.52907 4.96926 31.70 1487.87 1024.351 13.95 13.96 10.472 3.53046 4.97647 31.74 1487.80 1024.395 14.26 14.27 10.496 3.53062 4.97331 31.72 1487.86 1024.377