*2026/01/16 09:57:51.26 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/06/11 15:58:06.000 END TIME : UTC 2024/06/11 15:58:20.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 75 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 22.46 2 Depth metres 0.15 22.34 3 Temperature 'deg C (ITS90)' 9.451 11.268 4 Conductivity S/m 3.48361 3.5381 5 Conductance:Specific S/m 4.87772 5.07496 6 Salinity PSS-78 31.14 32.3 7 Speed:Sound m/s 1484.85 1489.67 8 Density kg/m^3 1023.726 1025.038 $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 : 140 LATITUDE : 48 48.02040 N ! (deg min) LONGITUDE : 125 11.89670 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240611_155806 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:01 75 75 MERGEHDR 1.3 2026/01/16 09:53:53 75 75 HDREDIT2 3.2 2026/01/16 09:55:06 ? ? REMOVECH 8.2 2026/01/16 09:56:18 75 75 CALIB 12.1 2026/01/16 09:56:51 75 75 CLEAN 5.3 2026/01/16 09:57:51 75 75 $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 09:56:18 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 11.268 3.53810 4.87772 31.14 1489.67 1023.726 0.45 0.45 11.153 3.53683 4.89141 31.22 1489.37 1023.813 0.75 0.75 10.863 3.52645 4.91650 31.37 1488.53 1023.978 1.05 1.05 10.731 3.51818 4.92320 31.40 1488.10 1024.027 1.35 1.34 10.695 3.51746 4.92711 31.43 1488.00 1024.052 1.65 1.64 10.668 3.51455 4.92682 31.42 1487.90 1024.054 1.95 1.94 10.598 3.51470 4.93664 31.48 1487.73 1024.115 2.25 2.24 10.504 3.51354 4.94809 31.55 1487.49 1024.187 2.55 2.54 10.465 3.51290 4.95265 31.58 1487.39 1024.216 2.85 2.84 10.426 3.50953 4.95334 31.58 1487.25 1024.224 3.15 3.14 10.251 3.50485 4.97127 31.68 1486.75 1024.336 3.45 3.43 10.133 3.50056 4.98180 31.74 1486.41 1024.404 3.75 3.73 10.101 3.49741 4.98188 31.74 1486.29 1024.408 4.05 4.03 10.080 3.49721 4.98467 31.76 1486.24 1024.426 4.35 4.33 10.055 3.49743 4.98845 31.78 1486.18 1024.449 4.65 4.63 10.028 3.49625 4.99060 31.79 1486.11 1024.464 4.95 4.93 10.000 3.49609 4.99439 31.81 1486.04 1024.488 5.25 5.23 9.960 3.49440 4.99767 31.83 1485.92 1024.510 5.55 5.52 9.938 3.49398 5.00027 31.85 1485.86 1024.527 5.85 5.82 9.916 3.49367 5.00290 31.86 1485.81 1024.544 6.15 6.12 9.878 3.49278 5.00718 31.89 1485.70 1024.572 6.45 6.42 9.811 3.49156 5.01496 31.93 1485.52 1024.620 6.75 6.72 9.744 3.48733 5.01864 31.95 1485.30 1024.645 7.05 7.02 9.703 3.48652 5.02337 31.98 1485.19 1024.675 7.35 7.31 9.666 3.48564 5.02743 32.00 1485.09 1024.701 7.65 7.61 9.632 3.48409 5.03014 32.02 1484.99 1024.719 7.95 7.91 9.609 3.48372 5.03292 32.03 1484.93 1024.737 8.25 8.21 9.596 3.48366 5.03479 32.04 1484.90 1024.749 8.55 8.51 9.586 3.48413 5.03692 32.06 1484.89 1024.763 8.85 8.81 9.578 3.48366 5.03735 32.06 1484.87 1024.767 9.15 9.11 9.576 3.48419 5.03838 32.07 1484.87 1024.774 9.45 9.40 9.573 3.48392 5.03850 32.07 1484.86 1024.776 9.75 9.70 9.571 3.48424 5.03922 32.07 1484.87 1024.781 10.05 10.00 9.569 3.48396 5.03915 32.07 1484.86 1024.782 10.35 10.30 9.569 3.48422 5.03958 32.07 1484.87 1024.786 10.65 10.60 9.568 3.48396 5.03930 32.07 1484.87 1024.786 10.95 10.90 9.565 3.48406 5.03979 32.08 1484.87 1024.790 11.25 11.19 9.567 3.48373 5.03914 32.07 1484.87 1024.787 11.55 11.49 9.567 3.48361 5.03889 32.07 1484.88 1024.787 11.85 11.79 9.566 3.48450 5.04031 32.08 1484.89 1024.796 12.15 12.09 9.565 3.48434 5.04025 32.08 1484.89 1024.797 12.45 12.39 9.565 3.48487 5.04104 32.08 1484.90 1024.803 12.75 12.69 9.564 3.48476 5.04095 32.08 1484.91 1024.804 13.05 12.98 9.563 3.48521 5.04183 32.09 1484.91 1024.810 13.35 13.28 9.564 3.48551 5.04211 32.09 1484.92 1024.813 13.65 13.58 9.564 3.48464 5.04080 32.08 1484.92 1024.807 13.95 13.88 9.564 3.48601 5.04283 32.09 1484.94 1024.819 14.25 14.18 9.562 3.48650 5.04387 32.10 1484.94 1024.826 14.55 14.48 9.559 3.48625 5.04396 32.10 1484.94 1024.828 14.85 14.78 9.555 3.48623 5.04448 32.11 1484.93 1024.833 15.15 15.07 9.555 3.48693 5.04549 32.11 1484.95 1024.839 15.45 15.37 9.552 3.48646 5.04526 32.11 1484.94 1024.840 15.75 15.67 9.547 3.48745 5.04738 32.12 1484.94 1024.853 16.05 15.97 9.545 3.48723 5.04736 32.12 1484.94 1024.854 16.35 16.27 9.539 3.48644 5.04709 32.12 1484.92 1024.854 16.65 16.57 9.535 3.48713 5.04872 32.13 1484.92 1024.865 16.95 16.86 9.531 3.48677 5.04873 32.13 1484.91 1024.866 17.25 17.16 9.526 3.48714 5.04998 32.14 1484.91 1024.875 17.55 17.46 9.521 3.48665 5.05004 32.14 1484.89 1024.876 17.85 17.76 9.517 3.48517 5.04855 32.13 1484.87 1024.870 18.15 18.06 9.509 3.48554 5.05024 32.14 1484.86 1024.881 18.45 18.36 9.503 3.48573 5.05136 32.14 1484.85 1024.888 18.75 18.65 9.501 3.48669 5.05302 32.16 1484.86 1024.899 19.05 18.95 9.499 3.48619 5.05255 32.15 1484.86 1024.898 19.35 19.25 9.499 3.48788 5.05505 32.17 1484.88 1024.913 19.65 19.55 9.486 3.48789 5.05699 32.18 1484.85 1024.926 19.95 19.85 9.483 3.49041 5.06099 32.21 1484.88 1024.949 20.25 20.15 9.485 3.49105 5.06173 32.21 1484.90 1024.954 20.55 20.45 9.490 3.49365 5.06478 32.24 1484.95 1024.972 20.85 20.74 9.487 3.49642 5.06916 32.27 1484.98 1024.998 21.15 21.04 9.476 3.49736 5.07214 32.29 1484.97 1025.016 21.45 21.34 9.466 3.49671 5.07263 32.29 1484.94 1025.020 21.75 21.64 9.460 3.49655 5.07341 32.29 1484.93 1025.026 22.05 21.94 9.457 3.49697 5.07434 32.30 1484.93 1025.033 22.46 22.34 9.451 3.49674 5.07496 32.30 1484.92 1025.038