*2026/01/16 09:47:05.99 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2023/12/20 21:17:17.000 END TIME : UTC 2023/12/20 21:17:37.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 103 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 30.81 2 Depth metres 0.15 30.72 3 Temperature 'deg C (ITS90)' 8.937 10.669 4 Conductivity S/m 1.73785 3.42638 5 Conductance:Specific S/m 2.56044 4.80346 6 Salinity PSS-78 15.22 30.54 7 Speed:Sound m/s 1461.77 1487.31 8 Density kg/m^3 1011.682 1023.499 $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 : 115 LATITUDE : 50 33.68030 N ! (deg min) LONGITUDE : 127 32.25150 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20231220_211717 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/15 13:40:53 103 103 MERGEHDR 1.3 2026/01/15 13:41:49 103 103 HDREDIT2 3.2 2026/01/15 14:00:58 ? ? REMOVECH 8.2 2026/01/15 14:01:19 103 103 CALIB 12.1 2026/01/16 09:46:13 103 103 CLEAN 5.3 2026/01/16 09:47:05 103 103 $END $REMARKS -HEADER EDITS: 2026/01/15 14:00:58 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 14:01:19 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:46:13 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 8.937 1.73785 2.56044 15.22 1461.77 1011.682 0.45 0.45 8.978 1.80246 2.65238 15.82 1462.66 1012.145 0.75 0.76 8.998 1.87350 2.75532 16.49 1463.56 1012.667 1.05 1.06 9.168 2.07785 3.04066 18.37 1466.52 1014.114 1.35 1.36 9.292 2.09022 3.04764 18.42 1467.07 1014.143 1.65 1.66 9.371 2.39923 3.49021 21.38 1470.97 1016.434 1.95 1.96 9.519 2.48310 3.59670 22.11 1472.42 1016.983 2.25 2.26 9.620 2.57867 3.72428 22.98 1473.86 1017.649 2.55 2.56 9.836 2.79422 4.01057 24.95 1477.06 1019.153 2.85 2.86 9.986 3.06610 4.38194 27.52 1480.74 1021.137 3.15 3.16 10.137 3.13108 4.45550 28.05 1481.94 1021.525 3.45 3.46 10.255 3.16186 4.48429 28.26 1482.63 1021.674 3.75 3.76 10.300 3.17239 4.49342 28.33 1482.89 1021.721 4.05 4.06 10.324 3.18623 4.51004 28.45 1483.12 1021.811 4.35 4.36 10.343 3.19184 4.51554 28.49 1483.24 1021.840 4.65 4.66 10.352 3.20207 4.52889 28.58 1483.39 1021.914 4.95 4.96 10.374 3.21102 4.53874 28.66 1483.56 1021.967 5.25 5.26 10.404 3.22771 4.55835 28.80 1483.85 1022.072 5.55 5.55 10.415 3.22986 4.55996 28.81 1483.91 1022.081 5.85 5.85 10.420 3.24848 4.58561 28.99 1484.15 1022.222 6.15 6.15 10.440 3.25776 4.59620 29.06 1484.32 1022.279 6.45 6.45 10.454 3.26275 4.60137 29.10 1484.42 1022.308 6.75 6.75 10.464 3.26701 4.60606 29.14 1484.50 1022.334 7.05 7.05 10.476 3.27996 4.62274 29.25 1484.69 1022.425 7.35 7.35 10.501 3.29455 4.64010 29.38 1484.93 1022.519 7.65 7.65 10.521 3.30368 4.65028 29.45 1485.10 1022.574 7.95 7.95 10.534 3.31716 4.66758 29.57 1485.30 1022.669 8.25 8.25 10.546 3.33159 4.68631 29.71 1485.51 1022.772 8.55 8.54 10.550 3.33465 4.69004 29.73 1485.56 1022.793 8.85 8.84 10.551 3.33684 4.69307 29.75 1485.59 1022.811 9.15 9.14 10.551 3.33662 4.69278 29.75 1485.60 1022.810 9.45 9.44 10.549 3.33713 4.69368 29.76 1485.60 1022.817 9.75 9.74 10.551 3.33726 4.69366 29.76 1485.61 1022.818 10.05 10.04 10.551 3.33756 4.69404 29.76 1485.62 1022.821 10.35 10.34 10.552 3.33748 4.69382 29.76 1485.63 1022.821 10.65 10.64 10.553 3.33680 4.69269 29.75 1485.63 1022.816 10.95 10.94 10.553 3.33888 4.69562 29.77 1485.66 1022.833 11.25 11.24 10.557 3.34103 4.69814 29.79 1485.70 1022.848 11.55 11.53 10.563 3.34188 4.69851 29.79 1485.73 1022.851 11.85 11.83 10.571 3.34827 4.70651 29.85 1485.83 1022.895 12.15 12.13 10.574 3.35570 4.71651 29.92 1485.93 1022.951 12.45 12.43 10.583 3.36254 4.72494 29.98 1486.04 1022.998 12.75 12.73 10.591 3.36505 4.72738 30.00 1486.10 1023.012 13.05 13.03 10.596 3.36939 4.73281 30.04 1486.17 1023.042 13.35 13.33 10.602 3.37203 4.73572 30.06 1486.22 1023.059 13.65 13.63 10.606 3.37376 4.73763 30.07 1486.25 1023.070 13.95 13.93 10.608 3.37544 4.73966 30.09 1486.29 1023.083 14.25 14.22 10.612 3.37674 4.74098 30.10 1486.32 1023.091 14.55 14.52 10.614 3.37873 4.74353 30.11 1486.35 1023.106 14.85 14.82 10.619 3.38079 4.74574 30.13 1486.39 1023.119 15.15 15.12 10.621 3.38155 4.74660 30.14 1486.41 1023.125 15.45 15.42 10.622 3.38246 4.74776 30.14 1486.43 1023.132 15.75 15.72 10.623 3.38307 4.74844 30.15 1486.44 1023.137 16.05 16.02 10.623 3.38331 4.74876 30.15 1486.45 1023.140 16.35 16.32 10.624 3.38438 4.75018 30.16 1486.47 1023.149 16.65 16.62 10.623 3.38478 4.75078 30.17 1486.48 1023.154 16.95 16.91 10.621 3.38501 4.75140 30.17 1486.48 1023.159 17.25 17.21 10.622 3.38537 4.75184 30.17 1486.49 1023.162 17.55 17.51 10.621 3.38537 4.75189 30.17 1486.49 1023.164 17.85 17.81 10.623 3.38588 4.75233 30.18 1486.51 1023.167 18.15 18.11 10.622 3.38819 4.75572 30.20 1486.54 1023.187 18.45 18.41 10.622 3.38913 4.75713 30.21 1486.55 1023.196 18.75 18.71 10.621 3.38977 4.75812 30.22 1486.56 1023.203 19.05 19.01 10.621 3.38984 4.75818 30.22 1486.57 1023.205 19.35 19.31 10.621 3.38998 4.75841 30.22 1486.58 1023.207 19.65 19.60 10.621 3.39025 4.75880 30.22 1486.58 1023.211 19.95 19.90 10.622 3.39096 4.75969 30.23 1486.60 1023.217 20.25 20.20 10.623 3.39197 4.76096 30.24 1486.62 1023.225 20.55 20.50 10.624 3.39439 4.76421 30.26 1486.66 1023.244 20.85 20.80 10.625 3.39809 4.76920 30.29 1486.71 1023.272 21.15 21.10 10.636 3.40122 4.77220 30.32 1486.78 1023.289 21.45 21.40 10.642 3.40376 4.77499 30.34 1486.83 1023.305 21.75 21.70 10.647 3.40427 4.77501 30.34 1486.85 1023.306 22.05 21.99 10.650 3.40459 4.77506 30.34 1486.87 1023.307 22.35 22.29 10.651 3.40488 4.77526 30.34 1486.88 1023.310 22.65 22.59 10.654 3.40570 4.77602 30.34 1486.90 1023.315 22.95 22.89 10.655 3.40645 4.77692 30.35 1486.92 1023.321 23.25 23.19 10.655 3.40650 4.77708 30.35 1486.92 1023.323 23.55 23.49 10.650 3.40700 4.77840 30.36 1486.92 1023.332 23.85 23.79 10.647 3.40792 4.78011 30.37 1486.93 1023.343 24.15 24.09 10.646 3.40928 4.78208 30.39 1486.95 1023.355 24.45 24.39 10.650 3.40860 4.78068 30.38 1486.95 1023.348 24.75 24.68 10.651 3.41283 4.78646 30.42 1487.01 1023.381 25.05 24.98 10.653 3.41435 4.78827 30.43 1487.04 1023.392 25.35 25.28 10.655 3.41427 4.78788 30.43 1487.05 1023.391 25.65 25.58 10.657 3.41448 4.78790 30.43 1487.06 1023.393 25.95 25.88 10.657 3.41503 4.78867 30.43 1487.07 1023.398 26.25 26.18 10.658 3.41502 4.78855 30.43 1487.08 1023.399 26.55 26.48 10.658 3.41503 4.78853 30.43 1487.09 1023.400 26.85 26.78 10.658 3.41556 4.78930 30.44 1487.10 1023.405 27.15 27.07 10.658 3.41544 4.78922 30.44 1487.10 1023.406 27.45 27.37 10.659 3.41538 4.78888 30.43 1487.11 1023.405 27.75 27.67 10.660 3.41513 4.78844 30.43 1487.11 1023.404 28.05 27.97 10.660 3.41574 4.78929 30.44 1487.12 1023.410 28.35 28.27 10.661 3.41641 4.79007 30.44 1487.14 1023.415 28.65 28.57 10.663 3.41638 4.78982 30.44 1487.15 1023.415 28.95 28.87 10.665 3.41823 4.79215 30.46 1487.18 1023.429 29.25 29.17 10.668 3.41821 4.79168 30.45 1487.19 1023.428 29.55 29.46 10.669 3.42098 4.79543 30.48 1487.23 1023.449 29.85 29.76 10.662 3.42278 4.79897 30.50 1487.24 1023.471 30.15 30.06 10.663 3.42511 4.80204 30.53 1487.28 1023.489 30.45 30.36 10.666 3.42549 4.80214 30.53 1487.29 1023.490 30.81 30.72 10.666 3.42638 4.80346 30.54 1487.31 1023.499