*2026/01/16 09:57:53.15 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/07/11 15:47:31.000 END TIME : UTC 2024/07/11 15:47:45.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 71 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 21.28 2 Depth metres 0.15 21.19 3 Temperature 'deg C (ITS90)' 9.703 17.972 4 Conductivity S/m 3.52582 3.7687 5 Conductance:Specific S/m 4.37359 5.08239 6 Salinity PSS-78 28.03 32.39 7 Speed:Sound m/s 1485.93 1507.9 8 Density kg/m^3 1019.959 1025.061 $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 : 182 LATITUDE : 49 43.12910 N ! (deg min) LONGITUDE : 126 37.93300 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240711_154731 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:03 71 71 MERGEHDR 1.3 2026/01/16 09:53:57 71 71 HDREDIT2 3.2 2026/01/16 09:55:08 ? ? REMOVECH 8.2 2026/01/16 09:56:19 71 71 CALIB 12.1 2026/01/16 09:56:52 71 71 CLEAN 5.3 2026/01/16 09:57:53 71 71 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:08 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 17.972 3.76870 4.38504 28.11 1507.90 1020.012 0.45 0.45 17.935 3.75563 4.37359 28.03 1507.70 1019.959 0.75 0.75 17.888 3.76517 4.38952 28.14 1507.69 1020.056 1.05 1.05 17.796 3.76275 4.39614 28.18 1507.47 1020.112 1.35 1.35 17.495 3.75820 4.42190 28.35 1506.76 1020.313 1.65 1.65 17.158 3.74956 4.44700 28.52 1505.93 1020.517 1.95 1.95 16.912 3.73876 4.46022 28.60 1505.27 1020.637 2.25 2.25 16.626 3.72916 4.47937 28.72 1504.54 1020.797 2.55 2.55 16.265 3.72081 4.50849 28.91 1503.64 1021.022 2.85 2.85 15.791 3.70470 4.54107 29.11 1502.40 1021.285 3.15 3.15 14.853 3.65378 4.58411 29.36 1499.70 1021.676 3.45 3.45 14.075 3.63770 4.65470 29.81 1497.69 1022.181 3.75 3.74 13.406 3.63150 4.72772 30.28 1496.03 1022.676 4.05 4.04 12.784 3.64317 4.82111 30.89 1494.66 1023.270 4.35 4.34 12.454 3.64575 4.86693 31.18 1493.90 1023.562 4.65 4.64 12.329 3.64211 4.87844 31.25 1493.56 1023.641 4.95 4.94 12.220 3.62456 4.86909 31.18 1493.10 1023.603 5.25 5.24 12.095 3.61608 4.87412 31.20 1492.70 1023.646 5.55 5.54 11.990 3.61333 4.88426 31.26 1492.41 1023.714 5.85 5.84 11.890 3.61720 4.90272 31.38 1492.22 1023.828 6.15 6.13 11.803 3.61101 4.90585 31.39 1491.94 1023.855 6.45 6.43 11.677 3.60269 4.91142 31.42 1491.54 1023.900 6.75 6.73 11.522 3.59265 4.91847 31.45 1491.04 1023.955 7.05 7.03 11.461 3.59093 4.92435 31.49 1490.88 1023.994 7.35 7.33 11.428 3.58779 4.92452 31.49 1490.76 1024.000 7.65 7.63 11.387 3.58486 4.92604 31.49 1490.63 1024.013 7.95 7.93 11.347 3.58256 4.92821 31.50 1490.51 1024.030 8.25 8.23 11.305 3.58130 4.93224 31.53 1490.40 1024.057 8.55 8.52 11.273 3.57769 4.93163 31.52 1490.28 1024.058 8.85 8.82 11.167 3.57195 4.93815 31.55 1489.95 1024.105 9.15 9.12 11.023 3.56071 4.94229 31.57 1489.47 1024.142 9.45 9.42 10.923 3.55581 4.94917 31.60 1489.16 1024.189 9.75 9.72 10.860 3.55486 4.95658 31.65 1489.00 1024.237 10.05 10.02 10.776 3.55027 4.96179 31.68 1488.74 1024.274 10.35 10.32 10.617 3.54002 4.96955 31.71 1488.22 1024.330 10.65 10.61 10.555 3.53472 4.97074 31.71 1488.01 1024.343 10.95 10.91 10.461 3.53267 4.98111 31.78 1487.75 1024.408 11.25 11.21 10.393 3.53050 4.98752 31.81 1487.56 1024.450 11.55 11.51 10.350 3.53022 4.99326 31.85 1487.45 1024.486 11.85 11.81 10.311 3.52953 4.99784 31.88 1487.34 1024.516 12.15 12.11 10.287 3.52928 5.00083 31.89 1487.29 1024.535 12.45 12.40 10.264 3.53054 5.00589 31.93 1487.25 1024.566 12.75 12.70 10.239 3.53132 5.01046 31.96 1487.20 1024.594 13.05 13.00 10.233 3.53147 5.01152 31.96 1487.19 1024.601 13.35 13.30 10.222 3.53171 5.01357 31.97 1487.17 1024.615 13.65 13.60 10.165 3.53042 5.01972 32.01 1487.02 1024.654 13.95 13.90 10.115 3.52741 5.02266 32.03 1486.86 1024.675 14.25 14.20 10.081 3.52582 5.02527 32.04 1486.76 1024.693 14.55 14.49 10.050 3.52678 5.03107 32.08 1486.69 1024.728 14.85 14.79 10.031 3.52694 5.03410 32.09 1486.65 1024.747 15.15 15.09 10.008 3.52658 5.03676 32.11 1486.60 1024.765 15.45 15.39 9.963 3.52663 5.04344 32.15 1486.48 1024.806 15.75 15.69 9.935 3.52630 5.04692 32.17 1486.42 1024.828 16.05 15.99 9.902 3.52635 5.05183 32.20 1486.34 1024.858 16.35 16.28 9.888 3.52684 5.05454 32.22 1486.31 1024.875 16.65 16.58 9.871 3.52617 5.05597 32.23 1486.27 1024.885 16.95 16.88 9.857 3.52595 5.05780 32.24 1486.23 1024.898 17.25 17.18 9.838 3.52670 5.06157 32.26 1486.20 1024.921 17.55 17.48 9.835 3.52626 5.06134 32.26 1486.19 1024.921 17.85 17.78 9.821 3.52658 5.06383 32.28 1486.16 1024.937 18.15 18.07 9.809 3.52670 5.06580 32.29 1486.14 1024.950 18.45 18.37 9.793 3.52664 5.06803 32.30 1486.10 1024.964 18.75 18.67 9.774 3.52655 5.07066 32.32 1486.06 1024.981 19.05 18.97 9.761 3.52610 5.07186 32.32 1486.02 1024.990 19.35 19.27 9.762 3.52738 5.07363 32.34 1486.05 1025.001 19.65 19.57 9.759 3.52667 5.07302 32.33 1486.03 1024.999 19.95 19.86 9.757 3.52709 5.07390 32.34 1486.04 1025.005 20.25 20.16 9.749 3.52611 5.07368 32.34 1486.01 1025.006 20.55 20.46 9.731 3.52582 5.07593 32.35 1485.97 1025.021 20.85 20.76 9.712 3.52633 5.07948 32.37 1485.93 1025.042 21.28 21.19 9.703 3.52748 5.08239 32.39 1485.93 1025.061