*2026/01/16 09:57:50.62 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/05/21 22:20:08.000 END TIME : UTC 2024/05/21 22:20:33.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 126 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 37.77 2 Depth metres 0.15 37.58 3 Temperature 'deg C (ITS90)' 8.791 13.787 4 Conductivity S/m 3.44918 3.61687 5 Conductance:Specific S/m 4.64021 5.10442 6 Salinity PSS-78 29.69 32.41 7 Speed:Sound m/s 1482.85 1496.56 8 Density kg/m^3 1022.131 1025.292 $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 : 121 LATITUDE : 48 58.04600 N ! (deg min) LONGITUDE : 125 19.66890 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240521_222008 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:59 126 126 MERGEHDR 1.3 2026/01/16 09:53:52 126 126 HDREDIT2 3.2 2026/01/16 09:55:05 ? ? REMOVECH 8.2 2026/01/16 09:56:17 126 126 CALIB 12.1 2026/01/16 09:56:50 126 126 CLEAN 5.3 2026/01/16 09:57:50 126 126 $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 13.787 3.60092 4.64194 29.70 1496.56 1022.138 0.45 0.45 13.781 3.59900 4.64021 29.69 1496.52 1022.131 0.75 0.75 13.743 3.60153 4.64793 29.74 1496.47 1022.180 1.05 1.05 13.709 3.59833 4.64791 29.74 1496.35 1022.186 1.35 1.35 13.669 3.59805 4.65239 29.76 1496.26 1022.217 1.65 1.65 13.642 3.59864 4.65637 29.79 1496.21 1022.244 1.95 1.94 13.618 3.59969 4.66060 29.82 1496.16 1022.272 2.25 2.24 13.608 3.59883 4.66070 29.82 1496.14 1022.275 2.55 2.54 13.592 3.59896 4.66279 29.83 1496.10 1022.290 2.85 2.84 13.575 3.59947 4.66550 29.85 1496.07 1022.308 3.15 3.14 13.527 3.60086 4.67320 29.90 1495.98 1022.358 3.45 3.44 13.459 3.60316 4.68442 29.97 1495.84 1022.430 3.75 3.74 13.383 3.61158 4.70464 30.11 1495.76 1022.552 4.05 4.04 13.372 3.61446 4.70971 30.15 1495.77 1022.583 4.35 4.34 13.336 3.61687 4.71730 30.20 1495.71 1022.630 4.65 4.64 13.125 3.61355 4.73903 30.33 1495.17 1022.778 4.95 4.94 12.912 3.61465 4.76719 30.52 1494.67 1022.961 5.25 5.23 12.727 3.61156 4.78642 30.64 1494.19 1023.091 5.55 5.53 12.389 3.58809 4.79832 30.69 1493.11 1023.197 5.85 5.83 11.978 3.57909 4.83947 30.94 1492.00 1023.470 6.15 6.13 11.665 3.56524 4.86196 31.07 1491.07 1023.627 6.45 6.43 11.401 3.55603 4.88457 31.20 1490.31 1023.778 6.75 6.73 11.224 3.54931 4.89907 31.28 1489.80 1023.876 7.05 7.03 11.123 3.54677 4.90926 31.35 1489.52 1023.942 7.35 7.33 11.058 3.54478 4.91540 31.38 1489.34 1023.983 7.65 7.62 10.961 3.54505 4.92905 31.47 1489.10 1024.068 7.95 7.92 10.852 3.54170 4.93934 31.53 1488.79 1024.135 8.25 8.22 10.758 3.53784 4.94692 31.57 1488.52 1024.186 8.55 8.52 10.697 3.53154 4.94651 31.56 1488.29 1024.189 8.85 8.82 10.599 3.52433 4.95008 31.57 1487.96 1024.218 9.15 9.12 10.488 3.52198 4.96216 31.65 1487.66 1024.294 9.45 9.42 10.333 3.51481 4.97386 31.71 1487.18 1024.371 9.75 9.71 10.269 3.50756 4.97263 31.69 1486.94 1024.370 10.05 10.01 10.225 3.50331 4.97272 31.69 1486.78 1024.375 10.35 10.31 10.163 3.50159 4.97907 31.72 1486.61 1024.416 10.65 10.61 10.089 3.50078 4.98836 31.78 1486.41 1024.473 10.95 10.91 10.044 3.49998 4.99365 31.81 1486.29 1024.507 11.25 11.21 10.006 3.49983 4.99891 31.84 1486.20 1024.539 11.55 11.51 9.992 3.49875 4.99936 31.85 1486.15 1024.544 11.85 11.80 9.987 3.49829 4.99946 31.85 1486.14 1024.546 12.15 12.10 9.946 3.49627 5.00239 31.86 1486.02 1024.566 12.45 12.40 9.928 3.49585 5.00431 31.87 1485.97 1024.579 12.75 12.70 9.915 3.49482 5.00477 31.87 1485.93 1024.584 13.05 13.00 9.880 3.49288 5.00701 31.88 1485.82 1024.600 13.35 13.30 9.855 3.49072 5.00741 31.88 1485.74 1024.604 13.65 13.60 9.821 3.48937 5.01042 31.90 1485.64 1024.625 13.95 13.89 9.752 3.48623 5.01580 31.93 1485.43 1024.659 14.25 14.19 9.689 3.48294 5.02025 31.95 1485.23 1024.689 14.55 14.49 9.669 3.48243 5.02234 31.96 1485.17 1024.703 14.85 14.79 9.633 3.47893 5.02250 31.96 1485.04 1024.707 15.15 15.09 9.554 3.47655 5.03068 32.01 1484.81 1024.758 15.45 15.39 9.526 3.47604 5.03391 32.03 1484.74 1024.778 15.75 15.68 9.512 3.47399 5.03305 32.02 1484.68 1024.776 16.05 15.98 9.498 3.47416 5.03530 32.03 1484.66 1024.790 16.35 16.28 9.495 3.47356 5.03493 32.03 1484.64 1024.789 16.65 16.58 9.490 3.47373 5.03585 32.03 1484.64 1024.796 16.95 16.88 9.485 3.47300 5.03554 32.03 1484.62 1024.796 17.25 17.18 9.482 3.47339 5.03657 32.04 1484.62 1024.803 17.55 17.47 9.481 3.47224 5.03494 32.03 1484.61 1024.795 17.85 17.77 9.479 3.47266 5.03593 32.03 1484.62 1024.802 18.15 18.07 9.479 3.47311 5.03662 32.04 1484.63 1024.807 18.45 18.37 9.466 3.47223 5.03719 32.04 1484.59 1024.812 18.75 18.67 9.462 3.47297 5.03885 32.05 1484.59 1024.823 19.05 18.97 9.453 3.47335 5.04070 32.06 1484.58 1024.835 19.35 19.27 9.449 3.47440 5.04286 32.08 1484.58 1024.848 19.65 19.56 9.434 3.47598 5.04734 32.11 1484.57 1024.875 19.95 19.86 9.396 3.47430 5.05045 32.12 1484.46 1024.895 20.25 20.16 9.367 3.46865 5.04648 32.09 1484.32 1024.876 20.55 20.46 9.338 3.46684 5.04811 32.10 1484.22 1024.888 20.85 20.76 9.310 3.46716 5.05272 32.13 1484.16 1024.916 21.15 21.06 9.295 3.46667 5.05423 32.13 1484.12 1024.926 21.45 21.35 9.290 3.46613 5.05413 32.13 1484.10 1024.927 21.75 21.65 9.274 3.46482 5.05458 32.13 1484.05 1024.932 22.05 21.95 9.250 3.46455 5.05772 32.15 1483.99 1024.951 22.35 22.25 9.243 3.46483 5.05914 32.16 1483.98 1024.961 22.65 22.55 9.240 3.46444 5.05900 32.16 1483.97 1024.961 22.95 22.85 9.235 3.46407 5.05927 32.16 1483.96 1024.964 23.25 23.14 9.235 3.46420 5.05951 32.16 1483.96 1024.967 23.55 23.44 9.231 3.46431 5.06014 32.17 1483.96 1024.972 23.85 23.74 9.226 3.46424 5.06079 32.17 1483.95 1024.977 24.15 24.04 9.225 3.46397 5.06056 32.17 1483.95 1024.977 24.45 24.34 9.213 3.46347 5.06166 32.17 1483.92 1024.985 24.75 24.64 9.196 3.46275 5.06312 32.18 1483.87 1024.995 25.05 24.93 9.178 3.46077 5.06288 32.18 1483.80 1024.996 25.35 25.23 9.154 3.45946 5.06455 32.19 1483.73 1025.007 25.65 25.53 9.130 3.45877 5.06705 32.20 1483.66 1025.023 25.95 25.83 9.112 3.45846 5.06922 32.21 1483.62 1025.037 26.25 26.13 9.103 3.45871 5.07105 32.22 1483.60 1025.049 26.55 26.43 9.104 3.45855 5.07059 32.22 1483.61 1025.048 26.85 26.72 9.108 3.46039 5.07263 32.24 1483.65 1025.060 27.15 27.02 9.105 3.46054 5.07340 32.24 1483.64 1025.066 27.45 27.32 9.099 3.46063 5.07434 32.25 1483.64 1025.073 27.75 27.62 9.087 3.46078 5.07633 32.26 1483.61 1025.085 28.05 27.92 9.064 3.45852 5.07651 32.26 1483.53 1025.089 28.35 28.22 9.042 3.45709 5.07770 32.26 1483.46 1025.097 28.65 28.51 9.029 3.45761 5.08044 32.28 1483.43 1025.114 28.95 28.81 9.029 3.45860 5.08190 32.29 1483.45 1025.124 29.25 29.11 9.015 3.45883 5.08422 32.30 1483.42 1025.138 29.55 29.41 9.019 3.45939 5.08454 32.31 1483.44 1025.141 29.85 29.71 9.016 3.45934 5.08485 32.31 1483.44 1025.144 30.15 30.01 9.014 3.45987 5.08597 32.31 1483.45 1025.152 30.45 30.30 9.004 3.45907 5.08620 32.31 1483.42 1025.155 30.75 30.60 8.984 3.45733 5.08677 32.32 1483.35 1025.160 31.05 30.90 8.964 3.45553 5.08701 32.31 1483.28 1025.163 31.35 31.20 8.935 3.45419 5.08940 32.33 1483.19 1025.179 31.65 31.50 8.908 3.45371 5.09270 32.35 1483.12 1025.199 31.95 31.80 8.900 3.45300 5.09293 32.35 1483.09 1025.202 32.25 32.09 8.893 3.45296 5.09394 32.35 1483.08 1025.209 32.55 32.39 8.888 3.45284 5.09456 32.36 1483.07 1025.214 32.85 32.69 8.884 3.45250 5.09464 32.36 1483.06 1025.216 33.15 32.99 8.874 3.45184 5.09510 32.36 1483.03 1025.220 33.45 33.29 8.873 3.45211 5.09572 32.36 1483.03 1025.225 33.75 33.59 8.872 3.45218 5.09599 32.36 1483.04 1025.228 34.05 33.88 8.873 3.45191 5.09534 32.36 1483.04 1025.225 34.35 34.18 8.871 3.45286 5.09702 32.37 1483.06 1025.236 34.65 34.48 8.879 3.45285 5.09583 32.36 1483.08 1025.230 34.95 34.78 8.879 3.45220 5.09494 32.36 1483.08 1025.227 35.25 35.08 8.865 3.45242 5.09733 32.37 1483.05 1025.242 35.55 35.38 8.859 3.45189 5.09746 32.37 1483.03 1025.244 35.85 35.67 8.848 3.45231 5.09973 32.38 1483.01 1025.258 36.15 35.97 8.844 3.45154 5.09918 32.38 1483.00 1025.256 36.45 36.27 8.842 3.45096 5.09861 32.38 1482.99 1025.255 36.75 36.57 8.828 3.45039 5.09991 32.38 1482.95 1025.264 37.05 36.87 8.808 3.44918 5.10115 32.39 1482.89 1025.272 37.35 37.17 8.791 3.44971 5.10442 32.41 1482.85 1025.292 37.77 37.58 8.792 3.44929 5.10367 32.40 1482.86 1025.290