*2026/01/16 09:57:51.15 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/06/11 00:09:22.000 END TIME : UTC 2024/06/11 00:09:39.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 90 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 26.76 2 Depth metres 0.15 26.64 3 Temperature 'deg C (ITS90)' 9.111 16.175 4 Conductivity S/m 3.44281 3.56938 5 Conductance:Specific S/m 4.31356 5.0473 6 Salinity PSS-78 27.52 32.06 7 Speed:Sound m/s 1483.43 1501.72 8 Density kg/m^3 1019.968 1024.919 $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 : 137 LATITUDE : 48 54.48870 N ! (deg min) LONGITUDE : 125 20.24230 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240611_000922 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:01 90 90 MERGEHDR 1.3 2026/01/16 09:53:53 90 90 HDREDIT2 3.2 2026/01/16 09:55:06 ? ? REMOVECH 8.2 2026/01/16 09:56:17 90 90 CALIB 12.1 2026/01/16 09:56:51 90 90 CLEAN 5.3 2026/01/16 09:57:51 90 90 $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 09:56:17 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 16.175 3.55218 4.31356 27.52 1501.72 1019.968 0.45 0.45 16.113 3.55184 4.31965 27.56 1501.58 1020.013 0.75 0.75 15.960 3.55206 4.33605 27.67 1501.23 1020.130 1.05 1.05 15.796 3.56044 4.36375 27.86 1500.93 1020.310 1.35 1.35 15.749 3.56137 4.36985 27.90 1500.84 1020.353 1.65 1.65 14.923 3.56679 4.46705 28.54 1498.94 1021.020 1.95 1.95 14.085 3.56396 4.55921 29.13 1496.91 1021.651 2.25 2.25 13.502 3.56938 4.63529 29.63 1495.56 1022.150 2.55 2.55 13.295 3.55983 4.64789 29.70 1494.96 1022.247 2.85 2.85 12.777 3.55113 4.70007 30.03 1493.60 1022.600 3.15 3.14 12.374 3.54083 4.73707 30.25 1492.50 1022.852 3.45 3.44 12.181 3.52702 4.74301 30.28 1491.87 1022.907 3.75 3.74 11.894 3.51895 4.76896 30.43 1491.07 1023.082 4.05 4.04 11.530 3.51214 4.80723 30.67 1490.08 1023.330 4.35 4.34 11.238 3.50565 4.83693 30.85 1489.28 1023.522 4.65 4.64 11.124 3.50536 4.85183 30.94 1488.99 1023.616 4.95 4.94 11.041 3.50247 4.85897 30.98 1488.76 1023.663 5.25 5.24 10.946 3.49709 4.86441 31.01 1488.46 1023.703 5.55 5.54 10.769 3.49312 4.88288 31.12 1487.97 1023.820 5.85 5.83 10.631 3.48970 4.89707 31.20 1487.58 1023.911 6.15 6.13 10.557 3.48770 4.90437 31.25 1487.37 1023.958 6.45 6.43 10.526 3.48719 4.90799 31.27 1487.29 1023.982 6.75 6.73 10.504 3.48547 4.90862 31.27 1487.22 1023.988 7.05 7.03 10.473 3.48548 4.91282 31.30 1487.15 1024.015 7.35 7.33 10.445 3.48492 4.91598 31.31 1487.07 1024.035 7.65 7.63 10.423 3.48294 4.91625 31.31 1487.00 1024.040 7.95 7.92 10.398 3.48285 4.91950 31.33 1486.94 1024.061 8.25 8.22 10.360 3.48320 4.92531 31.37 1486.85 1024.097 8.55 8.52 10.337 3.48042 4.92462 31.36 1486.76 1024.096 8.85 8.82 10.315 3.47897 4.92566 31.37 1486.69 1024.104 9.15 9.12 10.282 3.47909 4.93036 31.40 1486.62 1024.134 9.45 9.42 10.250 3.47852 4.93410 31.42 1486.53 1024.158 9.75 9.72 10.224 3.47660 4.93498 31.42 1486.45 1024.166 10.05 10.01 10.201 3.47594 4.93734 31.43 1486.38 1024.182 10.35 10.31 10.179 3.47495 4.93901 31.44 1486.32 1024.194 10.65 10.61 10.153 3.47371 4.94087 31.45 1486.24 1024.207 10.95 10.91 10.119 3.47426 4.94648 31.49 1486.17 1024.242 11.25 11.21 10.091 3.47312 4.94879 31.50 1486.09 1024.258 11.55 11.51 10.065 3.47213 4.95094 31.51 1486.02 1024.272 11.85 11.81 10.056 3.47182 4.95176 31.52 1485.99 1024.279 12.15 12.11 10.049 3.47223 4.95337 31.53 1485.98 1024.289 12.45 12.40 10.046 3.47141 4.95267 31.52 1485.97 1024.287 12.75 12.70 10.045 3.47168 4.95320 31.53 1485.98 1024.291 13.05 13.00 10.024 3.47102 4.95522 31.54 1485.92 1024.305 13.35 13.30 9.968 3.46883 4.95999 31.56 1485.75 1024.336 13.65 13.60 9.942 3.46851 4.96326 31.58 1485.69 1024.357 13.95 13.90 9.909 3.46636 4.96482 31.59 1485.58 1024.369 14.25 14.19 9.883 3.46531 4.96701 31.60 1485.51 1024.384 14.55 14.49 9.855 3.46442 4.96973 31.62 1485.43 1024.402 14.85 14.79 9.832 3.46343 4.97162 31.63 1485.36 1024.415 15.15 15.09 9.806 3.46382 4.97588 31.65 1485.30 1024.441 15.45 15.39 9.785 3.46278 4.97745 31.66 1485.24 1024.452 15.75 15.69 9.759 3.46157 4.97938 31.67 1485.17 1024.466 16.05 15.99 9.733 3.46160 4.98317 31.70 1485.10 1024.490 16.35 16.28 9.696 3.46062 4.98701 31.72 1485.00 1024.514 16.65 16.58 9.676 3.45962 4.98852 31.73 1484.94 1024.525 16.95 16.88 9.650 3.45895 4.99126 31.74 1484.87 1024.543 17.25 17.18 9.638 3.45871 4.99270 31.75 1484.84 1024.553 17.55 17.48 9.605 3.45659 4.99429 31.76 1484.74 1024.564 17.85 17.78 9.554 3.45595 5.00080 31.80 1484.60 1024.604 18.15 18.08 9.515 3.45321 5.00245 31.80 1484.47 1024.617 18.45 18.37 9.481 3.45259 5.00654 31.83 1484.38 1024.642 18.75 18.67 9.454 3.45176 5.00920 31.84 1484.30 1024.660 19.05 18.97 9.432 3.45180 5.01245 31.86 1484.25 1024.680 19.35 19.27 9.428 3.45194 5.01325 31.87 1484.25 1024.686 19.65 19.57 9.421 3.45142 5.01352 31.87 1484.23 1024.689 19.95 19.87 9.416 3.45109 5.01380 31.87 1484.22 1024.692 20.25 20.16 9.410 3.45080 5.01431 31.87 1484.20 1024.697 20.55 20.46 9.397 3.45149 5.01719 31.89 1484.18 1024.714 20.85 20.76 9.395 3.45251 5.01892 31.90 1484.19 1024.725 21.15 21.06 9.384 3.45085 5.01812 31.89 1484.15 1024.723 21.45 21.36 9.367 3.45040 5.01998 31.90 1484.10 1024.735 21.75 21.66 9.364 3.44933 5.01879 31.89 1484.09 1024.730 22.05 21.96 9.350 3.44863 5.01977 31.90 1484.05 1024.737 22.35 22.25 9.330 3.44805 5.02197 31.91 1483.99 1024.752 22.65 22.55 9.320 3.44891 5.02457 31.93 1483.98 1024.768 22.95 22.85 9.309 3.44849 5.02564 31.93 1483.95 1024.775 23.25 23.15 9.288 3.44739 5.02714 31.94 1483.89 1024.786 23.55 23.45 9.277 3.44674 5.02774 31.94 1483.86 1024.791 23.85 23.75 9.266 3.44787 5.03104 31.97 1483.85 1024.811 24.15 24.04 9.276 3.44713 5.02850 31.95 1483.87 1024.798 24.45 24.34 9.273 3.44655 5.02812 31.95 1483.86 1024.797 24.75 24.64 9.265 3.44550 5.02771 31.94 1483.83 1024.797 25.05 24.94 9.251 3.44604 5.03058 31.96 1483.81 1024.814 25.35 25.24 9.234 3.44406 5.03023 31.96 1483.74 1024.814 25.65 25.54 9.203 3.44330 5.03357 31.97 1483.66 1024.835 25.95 25.84 9.172 3.44307 5.03793 32.00 1483.58 1024.862 26.25 26.13 9.137 3.44281 5.04262 32.03 1483.49 1024.891 26.55 26.43 9.111 3.44317 5.04701 32.06 1483.43 1024.917 26.76 26.64 9.127 3.44499 5.04730 32.06 1483.50 1024.919