*2026/01/16 09:57:50.56 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/05/21 19:21:52.000 END TIME : UTC 2024/05/21 19:22:05.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 69 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 20.65 2 Depth metres 0.15 20.55 3 Temperature 'deg C (ITS90)' 9.254 11.176 4 Conductivity S/m 3.46648 3.55262 5 Conductance:Specific S/m 4.91025 5.06245 6 Salinity PSS-78 31.36 32.19 7 Speed:Sound m/s 1484.02 1489.61 8 Density kg/m^3 1023.914 1024.971 $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 : 118 LATITUDE : 48 54.51580 N ! (deg min) LONGITUDE : 125 27.91970 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240521_192152 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:59 69 69 MERGEHDR 1.3 2026/01/16 09:53:52 69 69 HDREDIT2 3.2 2026/01/16 09:55:05 ? ? REMOVECH 8.2 2026/01/16 09:56:17 69 69 CALIB 12.1 2026/01/16 09:56:50 69 69 CLEAN 5.3 2026/01/16 09:57:50 69 69 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:05 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 09:56:50 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 11.176 3.55262 4.91025 31.36 1489.61 1023.914 0.45 0.45 11.145 3.55214 4.91371 31.38 1489.53 1023.937 0.75 0.75 11.136 3.55111 4.91356 31.38 1489.50 1023.938 1.05 1.05 11.029 3.54519 4.91990 31.41 1489.17 1023.984 1.35 1.34 10.895 3.53863 4.92912 31.46 1488.76 1024.047 1.65 1.64 10.813 3.53260 4.93194 31.47 1488.49 1024.071 1.95 1.94 10.787 3.53263 4.93558 31.50 1488.43 1024.094 2.25 2.24 10.742 3.53102 4.93955 31.52 1488.30 1024.121 2.55 2.54 10.711 3.53060 4.94326 31.54 1488.22 1024.145 2.85 2.84 10.698 3.53037 4.94474 31.55 1488.19 1024.156 3.15 3.14 10.686 3.52956 4.94533 31.55 1488.15 1024.161 3.45 3.43 10.672 3.52936 4.94695 31.56 1488.12 1024.172 3.75 3.73 10.660 3.52749 4.94603 31.55 1488.07 1024.169 4.05 4.03 10.645 3.52764 4.94828 31.57 1488.04 1024.184 4.35 4.33 10.617 3.52713 4.95148 31.59 1487.97 1024.205 4.65 4.63 10.525 3.52253 4.95781 31.62 1487.69 1024.249 4.95 4.93 10.477 3.51879 4.95925 31.63 1487.53 1024.261 5.25 5.23 10.412 3.51546 4.96368 31.65 1487.33 1024.292 5.55 5.52 10.348 3.51099 4.96628 31.66 1487.11 1024.312 5.85 5.82 10.263 3.50868 4.97506 31.71 1486.87 1024.368 6.15 6.12 10.185 3.50644 4.98283 31.76 1486.65 1024.417 6.45 6.42 10.108 3.50249 4.98819 31.78 1486.41 1024.453 6.75 6.72 10.045 3.49831 4.99120 31.80 1486.21 1024.475 7.05 7.02 9.996 3.49391 4.99194 31.80 1486.03 1024.484 7.35 7.32 9.946 3.49108 4.99490 31.81 1485.88 1024.505 7.65 7.61 9.898 3.48947 4.99946 31.84 1485.74 1024.534 7.95 7.91 9.855 3.48827 5.00402 31.86 1485.62 1024.563 8.25 8.21 9.831 3.48799 5.00709 31.88 1485.56 1024.583 8.55 8.51 9.821 3.48848 5.00912 31.89 1485.54 1024.596 8.85 8.81 9.810 3.48779 5.00973 31.90 1485.51 1024.601 9.15 9.11 9.803 3.48787 5.01087 31.90 1485.50 1024.609 9.45 9.40 9.800 3.48727 5.01047 31.90 1485.49 1024.608 9.75 9.70 9.798 3.48779 5.01150 31.91 1485.49 1024.615 10.05 10.00 9.796 3.48734 5.01107 31.90 1485.49 1024.614 10.35 10.30 9.791 3.48726 5.01175 31.91 1485.48 1024.620 10.65 10.60 9.782 3.48770 5.01372 31.92 1485.47 1024.632 10.95 10.90 9.751 3.48667 5.01664 31.94 1485.38 1024.651 11.25 11.20 9.721 3.48603 5.02000 31.96 1485.30 1024.673 11.55 11.49 9.704 3.48411 5.01975 31.95 1485.24 1024.674 11.85 11.79 9.688 3.48350 5.02113 31.96 1485.19 1024.684 12.15 12.09 9.654 3.48118 5.02280 31.97 1485.08 1024.696 12.45 12.39 9.626 3.48019 5.02536 31.98 1485.00 1024.713 12.75 12.69 9.601 3.47914 5.02747 31.99 1484.93 1024.727 13.05 12.99 9.567 3.47842 5.03135 32.01 1484.84 1024.752 13.35 13.28 9.546 3.47835 5.03438 32.03 1484.79 1024.771 13.65 13.58 9.528 3.47725 5.03545 32.04 1484.73 1024.779 13.95 13.88 9.506 3.47584 5.03651 32.04 1484.66 1024.787 14.25 14.18 9.492 3.47561 5.03835 32.05 1484.63 1024.800 14.55 14.48 9.472 3.47499 5.04028 32.06 1484.58 1024.812 14.85 14.78 9.452 3.47384 5.04150 32.07 1484.51 1024.822 15.15 15.08 9.438 3.47349 5.04307 32.08 1484.48 1024.832 15.45 15.37 9.423 3.47287 5.04435 32.09 1484.44 1024.841 15.75 15.67 9.405 3.47254 5.04650 32.10 1484.39 1024.855 16.05 15.97 9.397 3.47140 5.04615 32.09 1484.36 1024.855 16.35 16.27 9.401 3.47271 5.04746 32.10 1484.39 1024.863 16.65 16.57 9.396 3.47174 5.04674 32.10 1484.37 1024.861 16.95 16.87 9.387 3.47155 5.04775 32.10 1484.35 1024.868 17.25 17.16 9.376 3.47109 5.04871 32.11 1484.32 1024.875 17.55 17.46 9.368 3.47055 5.04909 32.11 1484.30 1024.879 17.85 17.76 9.358 3.47088 5.05107 32.12 1484.28 1024.892 18.15 18.06 9.348 3.47071 5.05230 32.13 1484.26 1024.900 18.45 18.36 9.339 3.47060 5.05342 32.14 1484.24 1024.908 18.75 18.66 9.334 3.47042 5.05393 32.14 1484.23 1024.912 19.05 18.95 9.330 3.46930 5.05282 32.13 1484.21 1024.908 19.35 19.25 9.319 3.46889 5.05383 32.14 1484.18 1024.915 19.65 19.55 9.302 3.46841 5.05566 32.15 1484.14 1024.927 19.95 19.85 9.285 3.46648 5.05534 32.14 1484.07 1024.928 20.25 20.15 9.262 3.46721 5.05991 32.17 1484.02 1024.955 20.65 20.55 9.254 3.46820 5.06245 32.19 1484.02 1024.971