*2026/01/16 09:57:56.97 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/11/25 19:43:49.000 END TIME : UTC 2024/11/25 19:44:01.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 64 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 18.97 2 Depth metres 0.15 18.98 3 Temperature 'deg C (ITS90)' 8.527 11.074 4 Conductivity S/m 0.18716 3.43575 5 Conductance:Specific S/m 0.27912 4.77087 6 Salinity PSS-78 1.42 30.35 7 Speed:Sound m/s 1443.12 1488.15 8 Density kg/m^3 1000.939 1023.242 $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 : 298 LATITUDE : 49 13.65720 N ! (deg min) LONGITUDE : 124 49.37770 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20241125_194349 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:09 64 64 MERGEHDR 1.3 2026/01/16 09:54:11 64 64 HDREDIT2 3.2 2026/01/16 09:55:15 ? ? REMOVECH 8.2 2026/01/16 09:56:24 64 64 CALIB 12.1 2026/01/16 09:56:58 64 64 CLEAN 5.3 2026/01/16 09:57:56 64 64 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:15 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 09:56:24 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:58 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 8.527 0.18716 0.27912 1.42 1443.12 1000.939 0.45 0.46 8.622 0.18965 0.28204 1.44 1443.54 1000.946 0.75 0.76 8.653 0.19751 0.29344 1.50 1443.75 1000.993 1.05 1.07 8.688 0.20710 0.30737 1.57 1443.99 1001.051 1.35 1.37 8.716 0.21065 0.31239 1.60 1444.14 1001.072 1.65 1.68 8.737 0.26079 0.38651 2.00 1444.74 1001.389 1.95 1.99 8.849 0.28109 0.41521 2.16 1445.40 1001.506 2.25 2.29 9.024 0.58777 0.86377 4.72 1449.28 1003.494 2.55 2.59 9.156 1.01360 1.48378 8.44 1454.38 1006.386 2.85 2.90 9.458 1.29247 1.87542 10.88 1458.55 1008.256 3.15 3.20 9.754 1.75394 2.52339 15.02 1464.74 1011.449 3.45 3.50 9.874 2.87830 4.12671 25.75 1478.19 1019.775 3.75 3.80 10.113 3.07920 4.38471 27.56 1481.26 1021.146 4.05 4.10 10.357 3.13250 4.42981 27.89 1482.57 1021.373 4.35 4.40 10.508 3.17185 4.46641 28.17 1483.45 1021.561 4.65 4.70 10.609 3.17344 4.45594 28.10 1483.74 1021.497 4.95 5.00 10.699 3.19860 4.47998 28.28 1484.28 1021.621 5.25 5.30 10.724 3.22829 4.51839 28.55 1484.70 1021.829 5.55 5.60 10.752 3.26103 4.56061 28.85 1485.17 1022.058 5.85 5.90 10.781 3.27618 4.57808 28.97 1485.43 1022.152 6.15 6.20 10.805 3.28278 4.58421 29.02 1485.58 1022.184 6.45 6.50 10.842 3.30261 4.60716 29.18 1485.91 1022.308 6.75 6.79 10.875 3.31731 4.62340 29.30 1486.18 1022.395 7.05 7.09 10.919 3.33139 4.63739 29.40 1486.46 1022.469 7.35 7.39 10.943 3.33590 4.64050 29.43 1486.58 1022.485 7.65 7.69 10.972 3.34384 4.64784 29.48 1486.75 1022.523 7.95 7.99 11.007 3.35566 4.65972 29.57 1486.99 1022.587 8.25 8.29 11.026 3.37272 4.68095 29.72 1487.24 1022.702 8.55 8.59 11.047 3.38215 4.69134 29.80 1487.41 1022.758 8.85 8.89 11.061 3.38392 4.69199 29.80 1487.47 1022.762 9.15 9.19 11.071 3.38487 4.69190 29.80 1487.52 1022.762 9.45 9.49 11.074 3.39045 4.69924 29.86 1487.59 1022.803 9.75 9.79 11.070 3.39325 4.70371 29.89 1487.62 1022.829 10.05 10.08 11.069 3.39460 4.70570 29.90 1487.64 1022.841 10.35 10.38 11.068 3.39543 4.70697 29.91 1487.65 1022.850 10.65 10.68 11.067 3.39794 4.71061 29.93 1487.68 1022.871 10.95 10.98 11.067 3.40079 4.71459 29.96 1487.72 1022.894 11.25 11.28 11.068 3.40346 4.71813 29.99 1487.76 1022.915 11.55 11.58 11.069 3.40813 4.72446 30.03 1487.82 1022.950 11.85 11.88 11.072 3.40920 4.72561 30.04 1487.84 1022.958 12.15 12.18 11.073 3.41175 4.72889 30.06 1487.88 1022.977 12.45 12.48 11.073 3.41299 4.73063 30.07 1487.90 1022.988 12.75 12.77 11.074 3.41557 4.73407 30.10 1487.94 1023.008 13.05 13.07 11.072 3.41775 4.73744 30.12 1487.96 1023.028 13.35 13.37 11.070 3.41890 4.73921 30.13 1487.98 1023.039 13.65 13.67 11.070 3.42199 4.74358 30.17 1488.02 1023.064 13.95 13.97 11.068 3.42197 4.74375 30.17 1488.02 1023.066 14.25 14.27 11.069 3.42325 4.74546 30.18 1488.04 1023.077 14.55 14.57 11.066 3.42383 4.74667 30.19 1488.04 1023.085 14.85 14.87 11.064 3.42364 4.74667 30.19 1488.04 1023.087 15.15 15.17 11.061 3.42594 4.75021 30.21 1488.07 1023.107 15.45 15.47 11.057 3.42619 4.75102 30.22 1488.07 1023.113 15.75 15.76 11.057 3.42681 4.75197 30.22 1488.08 1023.120 16.05 16.06 11.052 3.42701 4.75284 30.23 1488.07 1023.126 16.35 16.36 11.050 3.42740 4.75366 30.23 1488.08 1023.132 16.65 16.66 11.047 3.42852 4.75563 30.25 1488.09 1023.145 16.95 16.96 11.044 3.42874 4.75627 30.25 1488.09 1023.150 17.25 17.26 11.044 3.43008 4.75814 30.26 1488.11 1023.161 17.55 17.56 11.044 3.43134 4.75996 30.28 1488.12 1023.173 17.85 17.86 11.042 3.43390 4.76378 30.30 1488.15 1023.195 18.15 18.16 11.036 3.43357 4.76403 30.30 1488.14 1023.198 18.45 18.45 11.028 3.43464 4.76664 30.32 1488.14 1023.214 18.75 18.75 11.017 3.43575 4.76960 30.34 1488.13 1023.233 18.97 18.98 11.007 3.43566 4.77087 30.35 1488.10 1023.242