*2026/01/16 09:57:54.82 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/09/05 16:18:17.000 END TIME : UTC 2024/09/05 16:18:30.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 68 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 20.21 2 Depth metres 0.15 20.12 3 Temperature 'deg C (ITS90)' 10.761 15.94 4 Conductivity S/m 3.5793 3.76928 5 Conductance:Specific S/m 4.60347 5.00594 6 Salinity PSS-78 29.57 31.99 7 Speed:Sound m/s 1489.21 1503.34 8 Density kg/m^3 1021.589 1024.557 $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 : 250 LATITUDE : 48 49.13730 N ! (deg min) LONGITUDE : 125 10.63850 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240905_161817 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:06 68 68 MERGEHDR 1.3 2026/01/16 09:54:06 68 68 HDREDIT2 3.2 2026/01/16 09:55:11 ? ? REMOVECH 8.2 2026/01/16 09:56:22 68 68 CALIB 12.1 2026/01/16 09:56:56 68 68 CLEAN 5.3 2026/01/16 09:57:54 68 68 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:11 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 09:56:22 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:56 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 15.940 3.76928 4.60347 29.57 1503.34 1021.589 0.45 0.45 15.365 3.76210 4.66011 29.94 1501.96 1021.999 0.75 0.75 15.176 3.75967 4.67894 30.06 1501.51 1022.134 1.05 1.05 14.822 3.75487 4.71452 30.29 1500.64 1022.388 1.35 1.35 14.513 3.74599 4.74022 30.45 1499.84 1022.578 1.65 1.65 14.130 3.72806 4.76366 30.59 1498.76 1022.765 1.95 1.94 13.604 3.70559 4.79945 30.81 1497.28 1023.037 2.25 2.24 13.027 3.68921 4.85076 31.12 1495.73 1023.396 2.55 2.54 13.027 3.69041 4.85236 31.13 1495.75 1023.406 2.85 2.84 12.399 3.67152 4.90864 31.48 1494.03 1023.793 3.15 3.14 12.347 3.67322 4.91768 31.54 1493.93 1023.850 3.45 3.44 12.319 3.67262 4.92056 31.55 1493.86 1023.870 3.75 3.74 12.305 3.67322 4.92318 31.57 1493.84 1023.887 4.05 4.04 12.310 3.67156 4.92040 31.55 1493.83 1023.873 4.35 4.33 12.281 3.67108 4.92349 31.57 1493.77 1023.894 4.65 4.63 12.259 3.67087 4.92622 31.59 1493.71 1023.913 4.95 4.93 12.225 3.66945 4.92873 31.60 1493.62 1023.932 5.25 5.23 12.212 3.66877 4.92955 31.61 1493.59 1023.939 5.55 5.53 12.177 3.66426 4.92808 31.59 1493.46 1023.936 5.85 5.83 12.130 3.65952 4.92801 31.59 1493.29 1023.942 6.15 6.13 12.080 3.65794 4.93245 31.61 1493.16 1023.973 6.45 6.43 12.024 3.65594 4.93724 31.64 1493.00 1024.007 6.75 6.72 11.988 3.65333 4.93852 31.65 1492.89 1024.019 7.05 7.02 11.941 3.65119 4.94191 31.67 1492.76 1024.044 7.35 7.32 11.858 3.64743 4.94789 31.70 1492.52 1024.086 7.65 7.62 11.806 3.64122 4.94652 31.68 1492.32 1024.086 7.95 7.92 11.675 3.63323 4.95322 31.72 1491.91 1024.137 8.25 8.22 11.625 3.62839 4.95344 31.71 1491.74 1024.144 8.55 8.52 11.535 3.62599 4.96238 31.77 1491.49 1024.204 8.85 8.81 11.505 3.62532 4.96553 31.79 1491.42 1024.225 9.15 9.11 11.470 3.62272 4.96664 31.79 1491.31 1024.236 9.45 9.41 11.437 3.62244 4.97089 31.82 1491.22 1024.264 9.75 9.71 11.437 3.62281 4.97137 31.82 1491.23 1024.268 10.05 10.01 11.416 3.62170 4.97274 31.83 1491.17 1024.278 10.35 10.31 11.399 3.62063 4.97349 31.83 1491.13 1024.285 10.65 10.61 11.389 3.61917 4.97289 31.83 1491.09 1024.284 10.95 10.90 11.382 3.61949 4.97434 31.83 1491.08 1024.294 11.25 11.20 11.351 3.61769 4.97600 31.84 1490.99 1024.307 11.55 11.50 11.327 3.61426 4.97458 31.83 1490.89 1024.303 11.85 11.80 11.248 3.60815 4.97697 31.84 1490.63 1024.325 12.15 12.10 11.199 3.60642 4.98132 31.86 1490.49 1024.354 12.45 12.40 11.177 3.60620 4.98417 31.88 1490.44 1024.374 12.75 12.70 11.158 3.60596 4.98636 31.89 1490.40 1024.389 13.05 12.99 11.155 3.60562 4.98627 31.89 1490.39 1024.390 13.35 13.29 11.147 3.60521 4.98681 31.90 1490.37 1024.395 13.65 13.59 11.138 3.60523 4.98813 31.90 1490.35 1024.404 13.95 13.89 11.132 3.60488 4.98851 31.91 1490.34 1024.408 14.25 14.19 11.131 3.60441 4.98800 31.90 1490.33 1024.406 14.55 14.49 11.111 3.60209 4.98757 31.90 1490.26 1024.407 14.85 14.79 11.082 3.60083 4.98983 31.91 1490.18 1024.423 15.15 15.08 11.056 3.60057 4.99298 31.93 1490.12 1024.444 15.45 15.38 11.031 3.59739 4.99213 31.92 1490.02 1024.443 15.75 15.68 10.996 3.59604 4.99503 31.94 1489.92 1024.463 16.05 15.98 10.969 3.59519 4.99760 31.95 1489.85 1024.481 16.35 16.28 10.952 3.59360 4.99784 31.95 1489.79 1024.485 16.65 16.58 10.925 3.59137 4.99844 31.95 1489.71 1024.492 16.95 16.87 10.896 3.58877 4.99882 31.95 1489.61 1024.497 17.25 17.17 10.873 3.58589 4.99802 31.94 1489.52 1024.496 17.55 17.47 10.854 3.58672 5.00183 31.97 1489.49 1024.520 17.85 17.77 10.833 3.58645 5.00439 31.98 1489.44 1024.537 18.15 18.07 10.839 3.58655 5.00375 31.98 1489.46 1024.534 18.45 18.37 10.839 3.58527 5.00192 31.97 1489.45 1024.526 18.75 18.67 10.829 3.58471 5.00259 31.97 1489.42 1024.531 19.05 18.96 10.817 3.58592 5.00594 31.99 1489.41 1024.552 19.35 19.26 10.818 3.58522 5.00474 31.98 1489.41 1024.547 19.65 19.56 10.817 3.58435 5.00375 31.98 1489.40 1024.542 19.95 19.86 10.781 3.58220 5.00572 31.99 1489.29 1024.557 20.21 20.12 10.761 3.57930 5.00453 31.97 1489.21 1024.554