*2026/01/16 09:57:52.70 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/07/09 21:39:03.000 END TIME : UTC 2024/07/09 21:39:13.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 55 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 16.4 2 Depth metres 0.15 16.32 3 Temperature 'deg C (ITS90)' 10.246 14.646 4 Conductivity S/m 3.56466 3.89422 5 Conductance:Specific S/m 4.88354 5.05939 6 Salinity PSS-78 31.39 32.3 7 Speed:Sound m/s 1487.71 1501.69 8 Density kg/m^3 1023.421 1024.879 $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 : 168 LATITUDE : 49 49.53660 N ! (deg min) LONGITUDE : 127 2.44280 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240709_213903 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:02 55 55 MERGEHDR 1.3 2026/01/16 09:53:56 55 55 HDREDIT2 3.2 2026/01/16 09:55:07 ? ? REMOVECH 8.2 2026/01/16 09:56:19 55 55 CALIB 12.1 2026/01/16 09:56:52 55 55 CLEAN 5.3 2026/01/16 09:57:52 55 55 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:07 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 09:56:19 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:52 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 14.646 3.89422 4.91128 31.69 1501.69 1023.497 0.45 0.45 14.440 3.85852 4.89169 31.53 1500.84 1023.421 0.75 0.75 13.947 3.80397 4.88354 31.43 1499.13 1023.448 1.05 1.05 13.857 3.80204 4.89237 31.49 1498.90 1023.511 1.35 1.34 13.664 3.78662 4.89681 31.51 1498.29 1023.563 1.65 1.64 13.406 3.75424 4.88757 31.42 1497.34 1023.548 1.95 1.94 13.285 3.74095 4.88570 31.39 1496.91 1023.555 2.25 2.24 13.097 3.73364 4.90011 31.48 1496.39 1023.660 2.55 2.54 12.929 3.73209 4.91989 31.61 1495.98 1023.791 2.85 2.84 12.729 3.72241 4.93312 31.68 1495.40 1023.890 3.15 3.14 12.594 3.71438 4.94008 31.72 1494.99 1023.945 3.45 3.44 12.473 3.69937 4.93603 31.68 1494.53 1023.938 3.75 3.73 12.176 3.68307 4.95360 31.77 1493.64 1024.070 4.05 4.03 11.889 3.66982 4.97421 31.89 1492.79 1024.215 4.35 4.33 11.724 3.63404 4.94777 31.69 1491.98 1024.087 4.65 4.63 11.525 3.62379 4.96066 31.76 1491.38 1024.179 4.95 4.93 11.372 3.62286 4.98035 31.88 1491.00 1024.303 5.25 5.23 11.254 3.62123 4.99430 31.96 1490.69 1024.392 5.55 5.53 11.163 3.61931 5.00410 32.02 1490.45 1024.456 5.85 5.82 11.132 3.61896 5.00792 32.05 1490.38 1024.481 6.15 6.12 11.103 3.61834 5.01115 32.07 1490.30 1024.503 6.45 6.42 11.080 3.61737 5.01305 32.08 1490.24 1024.516 6.75 6.72 11.053 3.61730 5.01658 32.10 1490.18 1024.540 7.05 7.02 11.022 3.61544 5.01830 32.11 1490.08 1024.553 7.35 7.32 10.972 3.61188 5.02039 32.12 1489.92 1024.570 7.65 7.61 10.917 3.61092 5.02677 32.16 1489.78 1024.611 7.95 7.91 10.890 3.60777 5.02615 32.15 1489.68 1024.611 8.25 8.21 10.855 3.60424 5.02617 32.14 1489.55 1024.615 8.55 8.51 10.812 3.60041 5.02679 32.14 1489.40 1024.624 8.85 8.81 10.787 3.59998 5.02977 32.16 1489.34 1024.643 9.15 9.11 10.758 3.59844 5.03167 32.17 1489.26 1024.657 9.45 9.41 10.738 3.59843 5.03445 32.19 1489.21 1024.676 9.75 9.70 10.719 3.59749 5.03582 32.20 1489.16 1024.686 10.05 10.00 10.688 3.59709 5.03960 32.22 1489.08 1024.711 10.35 10.30 10.677 3.59463 5.03773 32.20 1489.03 1024.702 10.65 10.60 10.646 3.59145 5.03766 32.20 1488.92 1024.706 10.95 10.90 10.621 3.59026 5.03958 32.21 1488.84 1024.719 11.25 11.20 10.608 3.59150 5.04317 32.23 1488.83 1024.742 11.55 11.49 10.600 3.59053 5.04287 32.23 1488.81 1024.742 11.85 11.79 10.584 3.58892 5.04283 32.23 1488.75 1024.744 12.15 12.09 10.550 3.58625 5.04396 32.23 1488.64 1024.754 12.45 12.39 10.519 3.58390 5.04510 32.24 1488.54 1024.764 12.75 12.69 10.473 3.58190 5.04882 32.26 1488.40 1024.789 13.05 12.99 10.437 3.57909 5.04997 32.26 1488.28 1024.800 13.35 13.28 10.414 3.57588 5.04869 32.25 1488.19 1024.795 13.65 13.58 10.357 3.57406 5.05430 32.28 1488.03 1024.832 13.95 13.88 10.344 3.57094 5.05175 32.26 1487.96 1024.820 14.25 14.18 10.315 3.56978 5.05420 32.27 1487.88 1024.837 14.55 14.48 10.306 3.56999 5.05585 32.28 1487.87 1024.848 14.85 14.78 10.310 3.57099 5.05662 32.29 1487.90 1024.853 15.15 15.08 10.311 3.56861 5.05311 32.27 1487.87 1024.835 15.45 15.37 10.296 3.56786 5.05414 32.27 1487.83 1024.843 15.75 15.67 10.282 3.56466 5.05174 32.25 1487.76 1024.832 16.05 15.97 10.264 3.56525 5.05505 32.27 1487.73 1024.853 16.40 16.32 10.246 3.56650 5.05939 32.30 1487.71 1024.879