*2026/01/16 09:57:47.76 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/02/15 00:08:59.000 END TIME : UTC 2024/02/15 00:09:18.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 96 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 28.52 2 Depth metres 0.15 28.43 3 Temperature 'deg C (ITS90)' 9.632 10.206 4 Conductivity S/m 3.06986 3.36407 5 Conductance:Specific S/m 4.43205 4.80673 6 Salinity PSS-78 27.83 30.48 7 Speed:Sound m/s 1479.77 1484.79 8 Density kg/m^3 1021.419 1023.556 $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 : 44 LATITUDE : 48 56.32270 N ! (deg min) LONGITUDE : 125 6.33960 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240215_000859 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:55 96 96 MERGEHDR 1.3 2026/01/16 09:53:46 96 96 HDREDIT2 3.2 2026/01/16 09:55:01 ? ? REMOVECH 8.2 2026/01/16 09:56:14 96 96 CALIB 12.1 2026/01/16 09:56:46 96 96 CLEAN 5.3 2026/01/16 09:57:47 96 96 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:01 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 09:56:14 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:46 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 9.632 3.06986 4.43205 27.83 1479.77 1021.419 0.45 0.45 9.640 3.07131 4.43318 27.84 1479.82 1021.426 0.75 0.75 9.647 3.07322 4.43507 27.85 1479.86 1021.437 1.05 1.05 9.665 3.07768 4.43921 27.89 1479.97 1021.460 1.35 1.35 9.672 3.07958 4.44098 27.90 1480.02 1021.470 1.65 1.65 9.682 3.08749 4.45115 27.97 1480.15 1021.526 1.95 1.95 9.703 3.09311 4.45654 28.01 1480.28 1021.555 2.25 2.25 9.725 3.11695 4.48801 28.23 1480.63 1021.725 2.55 2.54 9.765 3.13795 4.51307 28.41 1481.00 1021.860 2.85 2.84 9.844 3.15759 4.53098 28.54 1481.46 1021.953 3.15 3.14 9.890 3.17226 4.54606 28.65 1481.77 1022.033 3.45 3.44 9.893 3.17995 4.55671 28.73 1481.87 1022.092 3.75 3.74 9.869 3.18344 4.56492 28.78 1481.85 1022.140 4.05 4.04 9.862 3.18432 4.56699 28.80 1481.85 1022.153 4.35 4.34 9.892 3.21214 4.60291 29.05 1482.28 1022.348 4.65 4.64 9.938 3.23141 4.62453 29.21 1482.64 1022.464 4.95 4.94 10.052 3.24373 4.62701 29.24 1483.10 1022.471 5.25 5.24 10.057 3.24178 4.62357 29.21 1483.09 1022.453 5.55 5.54 9.944 3.23687 4.63158 29.26 1482.73 1022.505 5.85 5.84 9.910 3.23693 4.63616 29.28 1482.65 1022.534 6.15 6.13 9.884 3.23910 4.64265 29.33 1482.61 1022.572 6.45 6.43 9.878 3.24119 4.64640 29.35 1482.63 1022.594 6.75 6.73 9.872 3.24495 4.65264 29.39 1482.66 1022.630 7.05 7.03 9.878 3.24852 4.65699 29.43 1482.72 1022.655 7.35 7.33 9.898 3.25009 4.65652 29.42 1482.80 1022.652 7.65 7.63 9.930 3.25562 4.66018 29.45 1482.96 1022.671 7.95 7.93 9.930 3.26173 4.66898 29.51 1483.04 1022.720 8.25 8.23 9.929 3.26381 4.67207 29.54 1483.07 1022.739 8.55 8.53 9.926 3.26298 4.67126 29.53 1483.05 1022.736 8.85 8.83 9.919 3.26651 4.67731 29.57 1483.08 1022.770 9.15 9.12 9.910 3.27067 4.68447 29.62 1483.11 1022.811 9.45 9.42 9.911 3.27296 4.68759 29.64 1483.15 1022.830 9.75 9.72 9.925 3.27516 4.68881 29.65 1483.22 1022.837 10.05 10.02 9.960 3.27771 4.68773 29.65 1483.35 1022.830 10.35 10.32 10.005 3.28661 4.69447 29.70 1483.58 1022.865 10.65 10.62 10.062 3.28960 4.69112 29.68 1483.77 1022.844 10.95 10.92 10.055 3.28807 4.68988 29.67 1483.74 1022.839 11.25 11.22 10.055 3.28862 4.69070 29.68 1483.75 1022.845 11.55 11.52 10.112 3.29986 4.69908 29.75 1484.04 1022.888 11.85 11.82 10.125 3.31170 4.71417 29.85 1484.22 1022.970 12.15 12.11 10.150 3.31338 4.71322 29.85 1484.31 1022.965 12.45 12.41 10.175 3.31258 4.70869 29.82 1484.37 1022.939 12.75 12.71 10.180 3.31319 4.70893 29.82 1484.40 1022.942 13.05 13.01 10.177 3.31289 4.70889 29.82 1484.39 1022.943 13.35 13.31 10.173 3.31296 4.70955 29.83 1484.39 1022.948 13.65 13.61 10.170 3.31295 4.70993 29.83 1484.38 1022.952 13.95 13.91 10.171 3.31297 4.70982 29.83 1484.39 1022.952 14.25 14.21 10.173 3.31281 4.70929 29.82 1484.40 1022.951 14.55 14.51 10.164 3.31450 4.71297 29.85 1484.40 1022.973 14.85 14.81 10.169 3.31586 4.71412 29.86 1484.44 1022.980 15.15 15.10 10.179 3.31674 4.71408 29.86 1484.48 1022.980 15.45 15.40 10.190 3.31824 4.71472 29.86 1484.53 1022.984 15.75 15.70 10.197 3.31983 4.71612 29.87 1484.57 1022.993 16.05 16.00 10.201 3.32121 4.71748 29.88 1484.60 1023.001 16.35 16.30 10.202 3.32366 4.72086 29.91 1484.64 1023.021 16.65 16.60 10.206 3.32494 4.72207 29.92 1484.67 1023.028 16.95 16.90 10.203 3.32689 4.72529 29.94 1484.69 1023.047 17.25 17.20 10.203 3.32868 4.72778 29.96 1484.72 1023.062 17.55 17.50 10.206 3.32946 4.72847 29.96 1484.74 1023.067 17.85 17.79 10.204 3.32988 4.72944 29.97 1484.75 1023.074 18.15 18.09 10.204 3.33027 4.72991 29.97 1484.76 1023.078 18.45 18.39 10.201 3.33022 4.73025 29.97 1484.75 1023.081 18.75 18.69 10.198 3.33033 4.73086 29.98 1484.75 1023.086 19.05 18.99 10.195 3.33094 4.73213 29.98 1484.75 1023.094 19.35 19.29 10.185 3.33185 4.73477 30.00 1484.74 1023.111 19.65 19.59 10.167 3.33380 4.73990 30.04 1484.73 1023.141 19.95 19.89 10.157 3.33492 4.74286 30.05 1484.72 1023.159 20.25 20.19 10.152 3.33605 4.74516 30.07 1484.72 1023.174 20.55 20.48 10.143 3.33591 4.74618 30.08 1484.70 1023.181 20.85 20.78 10.123 3.33666 4.75002 30.10 1484.66 1023.205 21.15 21.08 10.110 3.33661 4.75162 30.11 1484.63 1023.216 21.45 21.38 10.101 3.33729 4.75384 30.12 1484.62 1023.230 21.75 21.68 10.089 3.33787 4.75628 30.14 1484.60 1023.245 22.05 21.98 10.087 3.33819 4.75696 30.14 1484.61 1023.250 22.35 22.28 10.084 3.33831 4.75754 30.15 1484.61 1023.255 22.65 22.58 10.079 3.33893 4.75911 30.16 1484.60 1023.265 22.95 22.88 10.075 3.34036 4.76180 30.18 1484.61 1023.281 23.25 23.17 10.076 3.34283 4.76511 30.20 1484.65 1023.301 23.55 23.47 10.072 3.34532 4.76926 30.23 1484.68 1023.325 23.85 23.77 10.063 3.34564 4.77091 30.24 1484.66 1023.336 24.15 24.07 10.054 3.34721 4.77440 30.26 1484.66 1023.357 24.45 24.37 10.048 3.34822 4.77666 30.28 1484.66 1023.371 24.75 24.67 10.042 3.34822 4.77737 30.28 1484.65 1023.376 25.05 24.97 10.033 3.34847 4.77908 30.29 1484.64 1023.388 25.35 25.27 10.022 3.34911 4.78138 30.31 1484.62 1023.402 25.65 25.57 10.018 3.34998 4.78320 30.32 1484.63 1023.414 25.95 25.86 10.014 3.35049 4.78449 30.33 1484.63 1023.422 26.25 26.16 10.007 3.35154 4.78697 30.34 1484.63 1023.438 26.55 26.46 9.996 3.35452 4.79266 30.38 1484.64 1023.471 26.85 26.76 9.990 3.35613 4.79590 30.40 1484.65 1023.490 27.15 27.06 9.987 3.35713 4.79767 30.42 1484.66 1023.501 27.45 27.36 9.988 3.35816 4.79906 30.43 1484.68 1023.510 27.75 27.66 9.988 3.36019 4.80187 30.45 1484.71 1023.527 28.05 27.96 9.992 3.36305 4.80539 30.47 1484.76 1023.547 28.35 28.25 9.993 3.36407 4.80673 30.48 1484.78 1023.556 28.52 28.43 9.999 3.36380 4.80561 30.47 1484.79 1023.550