*2026/01/16 09:57:55.60 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/10/15 18:11:28.000 END TIME : UTC 2024/10/15 18:11:38.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 53 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 15.9 2 Depth metres 0.15 15.86 3 Temperature 'deg C (ITS90)' 13.507 13.783 4 Conductivity S/m 2.84855 3.60233 5 Conductance:Specific S/m 3.69879 4.67318 6 Salinity PSS-78 23.09 29.9 7 Speed:Sound m/s 1487.86 1496.26 8 Density kg/m^3 1017.097 1022.409 $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 : 263 LATITUDE : 49 16.72290 N ! (deg min) LONGITUDE : 125 52.77670 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20241015_181128 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:07 53 53 MERGEHDR 1.3 2026/01/16 09:54:07 53 53 HDREDIT2 3.2 2026/01/16 09:55:12 ? ? REMOVECH 8.2 2026/01/16 09:56:23 53 53 CALIB 12.1 2026/01/16 09:56:56 53 53 CLEAN 5.3 2026/01/16 09:57:55 53 53 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:12 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 09:56:23 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:56 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 13.507 2.84855 3.69879 23.09 1487.86 1017.097 0.45 0.45 13.673 3.29134 4.25531 26.96 1492.97 1020.051 0.75 0.75 13.708 3.29878 4.26111 27.01 1493.14 1020.079 1.05 1.05 13.770 3.42026 4.41098 28.06 1494.60 1020.884 1.35 1.35 13.771 3.52116 4.54099 28.98 1495.68 1021.594 1.65 1.65 13.774 3.53841 4.56291 29.14 1495.88 1021.714 1.95 1.95 13.783 3.55284 4.58036 29.26 1496.06 1021.809 2.25 2.25 13.782 3.56113 4.59118 29.34 1496.15 1021.870 2.55 2.55 13.775 3.56888 4.60201 29.41 1496.22 1021.931 2.85 2.85 13.769 3.57310 4.60823 29.46 1496.26 1021.968 3.15 3.15 13.754 3.57460 4.61187 29.48 1496.24 1021.991 3.45 3.44 13.740 3.57488 4.61388 29.50 1496.22 1022.005 3.75 3.74 13.731 3.57480 4.61492 29.50 1496.20 1022.013 4.05 4.04 13.718 3.57600 4.61800 29.52 1496.18 1022.033 4.35 4.34 13.708 3.57781 4.62153 29.55 1496.18 1022.055 4.65 4.64 13.690 3.57954 4.62593 29.58 1496.16 1022.083 4.95 4.94 13.675 3.58324 4.63248 29.62 1496.17 1022.122 5.25 5.24 13.665 3.58564 4.63686 29.65 1496.18 1022.149 5.55 5.54 13.658 3.58664 4.63888 29.67 1496.18 1022.162 5.85 5.84 13.652 3.58675 4.63978 29.67 1496.17 1022.169 6.15 6.14 13.649 3.58830 4.64222 29.69 1496.18 1022.184 6.45 6.44 13.640 3.58933 4.64456 29.70 1496.18 1022.200 6.75 6.74 13.636 3.58914 4.64479 29.71 1496.17 1022.203 7.05 7.03 13.634 3.58921 4.64514 29.71 1496.17 1022.206 7.35 7.33 13.632 3.58976 4.64609 29.71 1496.18 1022.213 7.65 7.63 13.632 3.58968 4.64604 29.71 1496.18 1022.214 7.95 7.93 13.630 3.58884 4.64514 29.71 1496.17 1022.210 8.25 8.23 13.629 3.59012 4.64695 29.72 1496.19 1022.222 8.55 8.53 13.630 3.58939 4.64587 29.71 1496.19 1022.217 8.85 8.83 13.628 3.58932 4.64602 29.71 1496.19 1022.219 9.15 9.13 13.628 3.58962 4.64641 29.72 1496.20 1022.223 9.45 9.43 13.626 3.59040 4.64761 29.72 1496.20 1022.231 9.75 9.73 13.622 3.58990 4.64745 29.72 1496.19 1022.232 10.05 10.03 13.618 3.59070 4.64902 29.73 1496.20 1022.242 10.35 10.33 13.610 3.59230 4.65206 29.75 1496.20 1022.261 10.65 10.62 13.606 3.59303 4.65353 29.76 1496.20 1022.271 10.95 10.92 13.601 3.59393 4.65524 29.78 1496.21 1022.282 11.25 11.22 13.592 3.59526 4.65799 29.79 1496.20 1022.300 11.55 11.52 13.589 3.59701 4.66070 29.81 1496.22 1022.317 11.85 11.82 13.584 3.59726 4.66156 29.82 1496.22 1022.323 12.15 12.12 13.577 3.59731 4.66254 29.82 1496.20 1022.331 12.45 12.42 13.573 3.59776 4.66358 29.83 1496.20 1022.338 12.75 12.72 13.566 3.59815 4.66496 29.84 1496.20 1022.348 13.05 13.02 13.560 3.59807 4.66556 29.84 1496.19 1022.353 13.35 13.32 13.556 3.59953 4.66787 29.86 1496.20 1022.368 13.65 13.62 13.553 3.60009 4.66905 29.87 1496.20 1022.376 13.95 13.91 13.549 3.60123 4.67103 29.88 1496.21 1022.389 14.25 14.21 13.546 3.60102 4.67103 29.88 1496.20 1022.390 14.55 14.51 13.544 3.60132 4.67169 29.89 1496.21 1022.395 14.85 14.81 13.543 3.60220 4.67294 29.89 1496.22 1022.404 15.15 15.11 13.543 3.60233 4.67318 29.90 1496.22 1022.406 15.45 15.41 13.542 3.60142 4.67203 29.89 1496.22 1022.401 15.90 15.86 13.542 3.60227 4.67311 29.90 1496.23 1022.409