*2026/01/16 09:47:05.43 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2023/12/19 18:56:10.000 END TIME : UTC 2023/12/19 18:56:37.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 138 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 41.13 2 Depth metres 0.15 40.97 3 Temperature 'deg C (ITS90)' 9.998 10.492 4 Conductivity S/m 2.9429 3.4603 5 Conductance:Specific S/m 4.20437 4.89653 6 Salinity PSS-78 26.3 31.15 7 Speed:Sound m/s 1479.26 1487.03 8 Density kg/m^3 1020.168 1024.079 $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 : 2023-031 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 103 LATITUDE : 50 28.35050 N ! (deg min) LONGITUDE : 127 51.74200 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20231219_185610 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/15 13:40:53 138 138 MERGEHDR 1.3 2026/01/15 13:41:48 138 138 HDREDIT2 3.2 2026/01/15 14:00:57 ? ? REMOVECH 8.2 2026/01/15 14:01:18 138 138 CALIB 12.1 2026/01/16 09:46:10 138 138 CLEAN 5.3 2026/01/16 09:47:05 138 138 $END $REMARKS -HEADER EDITS: 2026/01/15 14:00:57 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 2026/01/15 14:01:18 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:46:10 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 09:47:01 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 9.998 2.94290 4.20437 26.30 1479.26 1020.168 0.45 0.45 10.225 3.16900 4.49824 28.36 1482.59 1021.739 0.75 0.75 10.268 3.22372 4.57030 28.87 1483.37 1022.128 1.05 1.05 10.279 3.24436 4.59813 29.06 1483.65 1022.280 1.35 1.35 10.293 3.24500 4.59724 29.06 1483.70 1022.276 1.65 1.65 10.312 3.25080 4.60301 29.10 1483.82 1022.307 1.95 1.95 10.332 3.25543 4.60694 29.13 1483.93 1022.328 2.25 2.24 10.336 3.25640 4.60781 29.14 1483.96 1022.334 2.55 2.54 10.333 3.25751 4.60977 29.15 1483.97 1022.346 2.85 2.84 10.330 3.25969 4.61319 29.17 1483.99 1022.366 3.15 3.14 10.330 3.26338 4.61841 29.21 1484.04 1022.396 3.45 3.44 10.342 3.26967 4.62578 29.26 1484.16 1022.437 3.75 3.74 10.356 3.27158 4.62660 29.27 1484.22 1022.441 4.05 4.04 10.361 3.27312 4.62816 29.28 1484.26 1022.451 4.35 4.34 10.362 3.27809 4.63503 29.33 1484.32 1022.489 4.65 4.64 10.371 3.28385 4.64207 29.38 1484.42 1022.528 4.95 4.94 10.382 3.28719 4.64525 29.40 1484.50 1022.546 5.25 5.23 10.383 3.29331 4.65383 29.46 1484.58 1022.594 5.55 5.53 10.383 3.29611 4.65782 29.49 1484.61 1022.617 5.85 5.83 10.389 3.29683 4.65799 29.49 1484.64 1022.619 6.15 6.13 10.395 3.29852 4.65955 29.50 1484.68 1022.628 6.45 6.43 10.396 3.29946 4.66080 29.51 1484.70 1022.636 6.75 6.73 10.396 3.30385 4.66704 29.56 1484.76 1022.672 7.05 7.03 10.399 3.30513 4.66833 29.56 1484.79 1022.680 7.35 7.33 10.413 3.30864 4.67147 29.59 1484.87 1022.697 7.65 7.63 10.408 3.31201 4.67694 29.63 1484.90 1022.729 7.95 7.93 10.407 3.31376 4.67958 29.64 1484.93 1022.744 8.25 8.22 10.412 3.31519 4.68088 29.65 1484.96 1022.752 8.55 8.52 10.420 3.31579 4.68068 29.65 1484.99 1022.752 8.85 8.82 10.414 3.31865 4.68555 29.69 1485.02 1022.780 9.15 9.12 10.415 3.32017 4.68746 29.70 1485.04 1022.792 9.45 9.42 10.426 3.32323 4.69041 29.72 1485.11 1022.808 9.75 9.72 10.434 3.32527 4.69218 29.74 1485.16 1022.819 10.05 10.02 10.425 3.32681 4.69552 29.76 1485.16 1022.839 10.35 10.32 10.425 3.32761 4.69665 29.77 1485.18 1022.846 10.65 10.62 10.430 3.32924 4.69829 29.78 1485.22 1022.856 10.95 10.92 10.439 3.33079 4.69937 29.79 1485.26 1022.863 11.25 11.21 10.438 3.33428 4.70443 29.82 1485.31 1022.892 11.55 11.51 10.440 3.33660 4.70741 29.84 1485.34 1022.909 11.85 11.81 10.450 3.33874 4.70905 29.85 1485.40 1022.919 12.15 12.11 10.465 3.34089 4.71010 29.86 1485.47 1022.924 12.45 12.41 10.470 3.34268 4.71196 29.88 1485.51 1022.935 12.75 12.71 10.474 3.34960 4.72118 29.94 1485.61 1022.987 13.05 13.01 10.478 3.35455 4.72768 29.99 1485.68 1023.023 13.35 13.31 10.478 3.35729 4.73148 30.01 1485.72 1023.046 13.65 13.61 10.477 3.35892 4.73396 30.03 1485.74 1023.060 13.95 13.90 10.481 3.36398 4.74056 30.08 1485.82 1023.098 14.25 14.20 10.486 3.36901 4.74691 30.12 1485.90 1023.133 14.55 14.50 10.484 3.36984 4.74844 30.13 1485.90 1023.143 14.85 14.80 10.483 3.37435 4.75489 30.18 1485.96 1023.180 15.15 15.10 10.489 3.37863 4.76014 30.22 1486.03 1023.209 15.45 15.40 10.492 3.38214 4.76468 30.25 1486.09 1023.235 15.75 15.70 10.488 3.38287 4.76617 30.26 1486.09 1023.245 16.05 16.00 10.483 3.38730 4.77312 30.31 1486.14 1023.285 16.35 16.30 10.478 3.39191 4.78025 30.36 1486.18 1023.325 16.65 16.59 10.471 3.39544 4.78626 30.40 1486.21 1023.360 16.95 16.89 10.451 3.40310 4.79975 30.49 1486.26 1023.437 17.25 17.19 10.433 3.40877 4.81018 30.56 1486.28 1023.497 17.55 17.49 10.424 3.41309 4.81746 30.61 1486.32 1023.538 17.85 17.79 10.408 3.42126 4.83122 30.71 1486.38 1023.617 18.15 18.09 10.393 3.42649 4.84069 30.77 1486.41 1023.671 18.45 18.39 10.383 3.42941 4.84610 30.81 1486.42 1023.703 18.75 18.69 10.383 3.43113 4.84862 30.83 1486.45 1023.718 19.05 18.98 10.373 3.43561 4.85631 30.88 1486.48 1023.762 19.35 19.28 10.361 3.43691 4.85975 30.90 1486.47 1023.783 19.65 19.58 10.353 3.43722 4.86131 30.91 1486.46 1023.793 19.95 19.88 10.353 3.43681 4.86068 30.91 1486.46 1023.791 20.25 20.18 10.350 3.43858 4.86360 30.93 1486.48 1023.809 20.55 20.48 10.345 3.43993 4.86627 30.95 1486.48 1023.825 20.85 20.78 10.345 3.44050 4.86701 30.95 1486.50 1023.830 21.15 21.07 10.346 3.44034 4.86666 30.95 1486.50 1023.830 21.45 21.37 10.347 3.44125 4.86787 30.96 1486.52 1023.838 21.75 21.67 10.336 3.44051 4.86832 30.96 1486.49 1023.842 22.05 21.97 10.332 3.44021 4.86844 30.96 1486.48 1023.844 22.35 22.27 10.335 3.44050 4.86839 30.96 1486.49 1023.845 22.65 22.57 10.340 3.44119 4.86872 30.96 1486.52 1023.848 22.95 22.87 10.335 3.44103 4.86909 30.96 1486.51 1023.851 23.25 23.17 10.333 3.44133 4.86986 30.97 1486.51 1023.857 23.55 23.46 10.333 3.44157 4.87017 30.97 1486.52 1023.860 23.85 23.76 10.332 3.44171 4.87058 30.97 1486.52 1023.864 24.15 24.06 10.326 3.44119 4.87065 30.97 1486.51 1023.866 24.45 24.36 10.324 3.44154 4.87140 30.98 1486.51 1023.871 24.75 24.66 10.326 3.44142 4.87101 30.97 1486.52 1023.870 25.05 24.96 10.323 3.44123 4.87109 30.98 1486.52 1023.872 25.35 25.26 10.318 3.44148 4.87210 30.98 1486.51 1023.879 25.65 25.55 10.317 3.44218 4.87333 30.99 1486.52 1023.887 25.95 25.85 10.319 3.44311 4.87432 31.00 1486.54 1023.894 26.25 26.15 10.321 3.44328 4.87424 31.00 1486.55 1023.895 26.55 26.45 10.315 3.44320 4.87498 31.00 1486.54 1023.900 26.85 26.75 10.315 3.44424 4.87643 31.01 1486.56 1023.910 27.15 27.05 10.318 3.44585 4.87837 31.02 1486.59 1023.921 27.45 27.35 10.316 3.44758 4.88104 31.04 1486.61 1023.937 27.75 27.64 10.313 3.44826 4.88244 31.05 1486.62 1023.947 28.05 27.94 10.313 3.44857 4.88291 31.06 1486.63 1023.951 28.35 28.24 10.312 3.45012 4.88516 31.07 1486.65 1023.964 28.65 28.54 10.310 3.45055 4.88608 31.08 1486.65 1023.971 28.95 28.84 10.310 3.45077 4.88642 31.08 1486.66 1023.974 29.25 29.14 10.311 3.45095 4.88652 31.08 1486.67 1023.976 29.55 29.44 10.313 3.45149 4.88699 31.08 1486.69 1023.979 29.85 29.74 10.310 3.45182 4.88790 31.09 1486.69 1023.986 30.15 30.03 10.311 3.45201 4.88799 31.09 1486.70 1023.987 30.45 30.33 10.315 3.45148 4.88665 31.08 1486.71 1023.981 30.75 30.63 10.320 3.45229 4.88711 31.09 1486.73 1023.984 31.05 30.93 10.314 3.45218 4.88783 31.09 1486.72 1023.990 31.35 31.23 10.315 3.45226 4.88775 31.09 1486.73 1023.991 31.65 31.53 10.317 3.45297 4.88855 31.09 1486.75 1023.996 31.95 31.83 10.317 3.45273 4.88817 31.09 1486.75 1023.995 32.25 32.12 10.317 3.45278 4.88833 31.09 1486.75 1023.998 32.55 32.42 10.320 3.45321 4.88851 31.09 1486.77 1024.000 32.85 32.72 10.323 3.45376 4.88882 31.10 1486.79 1024.002 33.15 33.02 10.321 3.45350 4.88875 31.10 1486.79 1024.004 33.45 33.32 10.324 3.45361 4.88848 31.09 1486.80 1024.003 33.75 33.62 10.327 3.45504 4.89015 31.11 1486.83 1024.013 34.05 33.92 10.331 3.45561 4.89039 31.11 1486.85 1024.016 34.35 34.21 10.330 3.45575 4.89061 31.11 1486.86 1024.018 34.65 34.51 10.326 3.45540 4.89076 31.11 1486.85 1024.021 34.95 34.81 10.327 3.45542 4.89067 31.11 1486.85 1024.021 35.25 35.11 10.329 3.45569 4.89078 31.11 1486.87 1024.023 35.55 35.41 10.333 3.45606 4.89075 31.11 1486.89 1024.024 35.85 35.71 10.335 3.45656 4.89108 31.11 1486.90 1024.027 36.15 36.01 10.327 3.45751 4.89351 31.13 1486.90 1024.042 36.45 36.30 10.319 3.45637 4.89307 31.12 1486.87 1024.041 36.75 36.60 10.319 3.45628 4.89289 31.12 1486.87 1024.042 37.05 36.90 10.331 3.45656 4.89163 31.12 1486.91 1024.035 37.35 37.20 10.341 3.45669 4.89049 31.11 1486.94 1024.029 37.65 37.50 10.335 3.45818 4.89337 31.13 1486.95 1024.047 37.95 37.80 10.328 3.45808 4.89422 31.13 1486.94 1024.053 38.25 38.10 10.333 3.45808 4.89362 31.13 1486.95 1024.051 38.55 38.40 10.339 3.45937 4.89462 31.14 1486.99 1024.057 38.85 38.69 10.325 3.45826 4.89493 31.14 1486.95 1024.061 39.15 38.99 10.319 3.45819 4.89564 31.14 1486.94 1024.067 39.45 39.29 10.316 3.45851 4.89646 31.15 1486.94 1024.073 39.75 39.59 10.320 3.45870 4.89620 31.15 1486.95 1024.072 40.05 39.89 10.324 3.45923 4.89647 31.15 1486.97 1024.075 40.35 40.19 10.325 3.45867 4.89556 31.14 1486.97 1024.071 40.65 40.49 10.329 3.45979 4.89653 31.15 1487.00 1024.077 40.95 40.78 10.330 3.45951 4.89606 31.15 1487.01 1024.076 41.13 40.97 10.334 3.46030 4.89652 31.15 1487.03 1024.079