*2026/01/16 09:57:50.53 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/05/21 18:19:21.000 END TIME : UTC 2024/05/21 18:19:39.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 93 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 27.86 2 Depth metres 0.15 27.72 3 Temperature 'deg C (ITS90)' 8.947 12.494 4 Conductivity S/m 3.44998 3.58055 5 Conductance:Specific S/m 4.75719 5.08284 6 Salinity PSS-78 30.41 32.28 7 Speed:Sound m/s 1483.1 1493.04 8 Density kg/m^3 1022.936 1025.127 $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 : 117 LATITUDE : 48 54.46420 N ! (deg min) LONGITUDE : 125 20.25070 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240521_181921 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:59 93 93 MERGEHDR 1.3 2026/01/16 09:53:52 93 93 HDREDIT2 3.2 2026/01/16 09:55:05 ? ? REMOVECH 8.2 2026/01/16 09:56:17 93 93 CALIB 12.1 2026/01/16 09:56:50 93 93 CLEAN 5.3 2026/01/16 09:57:50 93 93 $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 12.494 3.56734 4.75719 30.41 1493.04 1022.936 0.45 0.45 12.483 3.56845 4.76013 30.43 1493.03 1022.955 0.75 0.75 12.477 3.56914 4.76178 30.44 1493.03 1022.966 1.05 1.05 12.442 3.57524 4.77432 30.53 1493.02 1023.040 1.35 1.35 12.424 3.57654 4.77839 30.55 1493.00 1023.066 1.65 1.64 12.385 3.57660 4.78352 30.58 1492.90 1023.100 1.95 1.94 12.312 3.57830 4.79508 30.66 1492.75 1023.173 2.25 2.24 12.156 3.58055 4.81833 30.81 1492.39 1023.319 2.55 2.54 11.893 3.56935 4.83744 30.92 1491.62 1023.453 2.85 2.84 11.778 3.56795 4.85071 31.00 1491.33 1023.540 3.15 3.14 11.689 3.56542 4.85904 31.05 1491.08 1023.596 3.45 3.44 11.517 3.56038 4.87497 31.15 1490.60 1023.702 3.75 3.74 11.345 3.55041 4.88427 31.19 1490.06 1023.770 4.05 4.03 11.144 3.53855 4.89501 31.25 1489.43 1023.849 4.35 4.33 10.922 3.53025 4.91383 31.36 1488.77 1023.973 4.65 4.63 10.779 3.52809 4.93034 31.46 1488.40 1024.077 4.95 4.93 10.515 3.51845 4.95341 31.59 1487.62 1024.226 5.25 5.23 10.375 3.50798 4.95829 31.61 1487.14 1024.265 5.55 5.53 10.157 3.49405 4.96920 31.66 1486.42 1024.342 5.85 5.83 10.012 3.48106 4.97119 31.65 1485.90 1024.363 6.15 6.12 9.821 3.47552 4.99061 31.76 1485.34 1024.484 6.45 6.42 9.686 3.47154 5.00427 31.84 1484.95 1024.568 6.75 6.72 9.623 3.46979 5.01077 31.88 1484.78 1024.609 7.05 7.02 9.547 3.46912 5.02085 31.94 1484.58 1024.670 7.35 7.32 9.497 3.46858 5.02730 31.98 1484.45 1024.709 7.65 7.62 9.453 3.46705 5.03160 32.00 1484.32 1024.737 7.95 7.92 9.425 3.46629 5.03461 32.02 1484.24 1024.756 8.25 8.21 9.407 3.46560 5.03624 32.03 1484.19 1024.767 8.55 8.51 9.375 3.46268 5.03668 32.03 1484.07 1024.772 8.85 8.81 9.344 3.46102 5.03871 32.04 1483.98 1024.786 9.15 9.11 9.314 3.46139 5.04366 32.07 1483.91 1024.816 9.45 9.41 9.296 3.45911 5.04296 32.06 1483.84 1024.815 9.75 9.71 9.265 3.45895 5.04742 32.09 1483.76 1024.842 10.05 10.00 9.227 3.45664 5.04965 32.10 1483.64 1024.857 10.35 10.30 9.192 3.45545 5.05299 32.12 1483.54 1024.879 10.65 10.60 9.173 3.45525 5.05546 32.13 1483.49 1024.894 10.95 10.90 9.164 3.45509 5.05666 32.14 1483.47 1024.903 11.25 11.20 9.159 3.45511 5.05744 32.14 1483.46 1024.908 11.55 11.50 9.154 3.45479 5.05774 32.14 1483.45 1024.911 11.85 11.79 9.151 3.45532 5.05884 32.15 1483.46 1024.919 12.15 12.09 9.148 3.45472 5.05849 32.15 1483.44 1024.918 12.45 12.39 9.144 3.45450 5.05867 32.15 1483.44 1024.921 12.75 12.69 9.138 3.45496 5.06033 32.16 1483.43 1024.932 13.05 12.99 9.132 3.45472 5.06076 32.16 1483.42 1024.935 13.35 13.29 9.131 3.45483 5.06115 32.16 1483.42 1024.939 13.65 13.59 9.132 3.45435 5.06025 32.16 1483.42 1024.935 13.95 13.88 9.129 3.45436 5.06067 32.16 1483.42 1024.939 14.25 14.18 9.125 3.45398 5.06075 32.16 1483.41 1024.941 14.55 14.48 9.122 3.45428 5.06162 32.17 1483.41 1024.947 14.85 14.78 9.119 3.45388 5.06145 32.16 1483.40 1024.947 15.15 15.08 9.115 3.45402 5.06225 32.17 1483.40 1024.953 15.45 15.38 9.112 3.45385 5.06255 32.17 1483.39 1024.956 15.75 15.67 9.109 3.45391 5.06301 32.17 1483.39 1024.960 16.05 15.97 9.086 3.45343 5.06579 32.19 1483.33 1024.978 16.35 16.27 9.073 3.45304 5.06709 32.20 1483.30 1024.987 16.65 16.57 9.056 3.45188 5.06789 32.20 1483.24 1024.993 16.95 16.87 9.040 3.45078 5.06874 32.20 1483.19 1025.000 17.25 17.17 9.032 3.45076 5.06984 32.21 1483.18 1025.008 17.55 17.46 9.023 3.45069 5.07112 32.22 1483.15 1025.016 17.85 17.76 9.012 3.45027 5.07211 32.22 1483.13 1025.023 18.15 18.06 9.003 3.45041 5.07374 32.23 1483.11 1025.034 18.45 18.36 9.001 3.45020 5.07369 32.23 1483.11 1025.035 18.75 18.66 8.996 3.45081 5.07535 32.24 1483.10 1025.046 19.05 18.96 8.998 3.45018 5.07410 32.23 1483.11 1025.040 19.35 19.25 8.995 3.45017 5.07452 32.24 1483.10 1025.044 19.65 19.55 8.993 3.45045 5.07522 32.24 1483.11 1025.049 19.95 19.85 8.992 3.45039 5.07535 32.24 1483.11 1025.051 20.25 20.15 8.990 3.44998 5.07504 32.24 1483.10 1025.051 20.55 20.45 8.991 3.45023 5.07525 32.24 1483.11 1025.053 20.85 20.75 8.989 3.45041 5.07573 32.24 1483.12 1025.057 21.15 21.04 8.989 3.45022 5.07549 32.24 1483.12 1025.057 21.45 21.34 8.986 3.45060 5.07653 32.25 1483.12 1025.064 21.75 21.64 8.985 3.45044 5.07641 32.25 1483.12 1025.065 22.05 21.94 8.985 3.45091 5.07717 32.25 1483.13 1025.070 22.35 22.24 8.984 3.45048 5.07670 32.25 1483.13 1025.069 22.65 22.54 8.979 3.45098 5.07809 32.26 1483.13 1025.078 22.95 22.83 8.972 3.45038 5.07833 32.26 1483.10 1025.081 23.25 23.13 8.967 3.45057 5.07931 32.26 1483.10 1025.088 23.55 23.43 8.964 3.45088 5.08013 32.27 1483.10 1025.094 23.85 23.73 8.965 3.45031 5.07921 32.26 1483.10 1025.090 24.15 24.03 8.962 3.45111 5.08086 32.27 1483.11 1025.100 24.45 24.33 8.960 3.45051 5.08031 32.27 1483.10 1025.099 24.75 24.62 8.960 3.45099 5.08098 32.27 1483.11 1025.104 25.05 24.92 8.959 3.45092 5.08100 32.27 1483.11 1025.105 25.35 25.22 8.958 3.45055 5.08063 32.27 1483.11 1025.104 25.65 25.52 8.954 3.45035 5.08088 32.27 1483.10 1025.107 25.95 25.82 8.954 3.45102 5.08193 32.28 1483.11 1025.114 26.25 26.12 8.958 3.45194 5.08264 32.28 1483.14 1025.119 26.55 26.41 8.962 3.45156 5.08157 32.28 1483.15 1025.114 26.85 26.71 8.954 3.45046 5.08111 32.27 1483.12 1025.113 27.15 27.01 8.949 3.45035 5.08168 32.28 1483.11 1025.118 27.45 27.31 8.947 3.45097 5.08284 32.28 1483.12 1025.126 27.86 27.72 8.948 3.45096 5.08277 32.28 1483.13 1025.127