*2026/01/16 09:57:50.51 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/05/21 17:31:18.000 END TIME : UTC 2024/05/21 17:31:32.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 71 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 21.26 2 Depth metres 0.15 21.15 3 Temperature 'deg C (ITS90)' 9.124 12.083 4 Conductivity S/m 3.45249 3.58555 5 Conductance:Specific S/m 4.83446 5.05875 6 Salinity PSS-78 30.92 32.15 7 Speed:Sound m/s 1483.5 1492.24 8 Density kg/m^3 1023.407 1024.959 $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 : 116 LATITUDE : 48 52.65000 N ! (deg min) LONGITUDE : 125 17.60790 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240521_173118 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:59 71 71 MERGEHDR 1.3 2026/01/16 09:53:52 71 71 HDREDIT2 3.2 2026/01/16 09:55:05 ? ? REMOVECH 8.2 2026/01/16 09:56:17 71 71 CALIB 12.1 2026/01/16 09:56:49 71 71 CLEAN 5.3 2026/01/16 09:57:50 71 71 $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 09:56:49 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 12.083 3.58555 4.83446 30.92 1492.24 1023.407 0.45 0.45 12.008 3.58440 4.84268 30.97 1492.05 1023.461 0.75 0.75 11.978 3.58214 4.84362 30.97 1491.95 1023.471 1.05 1.05 11.945 3.58292 4.84896 31.01 1491.89 1023.505 1.35 1.34 11.843 3.58041 4.85896 31.07 1491.61 1023.572 1.65 1.64 11.719 3.57720 4.87100 31.14 1491.27 1023.652 1.95 1.94 11.605 3.56742 4.87290 31.14 1490.88 1023.675 2.25 2.24 11.482 3.56184 4.88160 31.19 1490.51 1023.736 2.55 2.54 11.309 3.55924 4.90136 31.31 1490.06 1023.863 2.85 2.84 11.191 3.55060 4.90531 31.33 1489.67 1023.897 3.15 3.14 11.054 3.54471 4.91583 31.39 1489.26 1023.968 3.45 3.44 10.926 3.53890 4.92523 31.44 1488.87 1024.032 3.75 3.73 10.841 3.53330 4.92917 31.46 1488.60 1024.062 4.05 4.03 10.695 3.53036 4.94518 31.55 1488.20 1024.163 4.35 4.33 10.613 3.52560 4.94991 31.58 1487.94 1024.197 4.65 4.63 10.463 3.51359 4.95393 31.59 1487.42 1024.232 4.95 4.93 10.396 3.51242 4.96162 31.63 1487.24 1024.281 5.25 5.23 10.315 3.51007 4.96966 31.68 1487.01 1024.332 5.55 5.53 10.227 3.50814 4.97935 31.74 1486.77 1024.393 5.85 5.82 10.128 3.50391 4.98736 31.78 1486.47 1024.445 6.15 6.12 10.086 3.50051 4.98846 31.78 1486.33 1024.455 6.45 6.42 10.046 3.49802 4.99056 31.79 1486.20 1024.470 6.75 6.72 10.018 3.49649 4.99244 31.80 1486.12 1024.484 7.05 7.02 9.968 3.49461 4.99681 31.83 1485.97 1024.512 7.35 7.32 9.910 3.49277 5.00261 31.86 1485.80 1024.549 7.65 7.62 9.849 3.48908 5.00607 31.88 1485.61 1024.573 7.95 7.91 9.809 3.48617 5.00750 31.88 1485.48 1024.585 8.25 8.21 9.779 3.48521 5.01045 31.90 1485.39 1024.604 8.55 8.51 9.753 3.48479 5.01363 31.92 1485.32 1024.625 8.85 8.81 9.737 3.48392 5.01465 31.92 1485.28 1024.632 9.15 9.11 9.725 3.48291 5.01498 31.92 1485.24 1024.636 9.45 9.41 9.705 3.48240 5.01712 31.93 1485.18 1024.651 9.75 9.70 9.694 3.48206 5.01820 31.94 1485.16 1024.658 10.05 10.00 9.690 3.48213 5.01899 31.95 1485.15 1024.664 10.35 10.30 9.686 3.48212 5.01948 31.95 1485.15 1024.668 10.65 10.60 9.667 3.48099 5.02065 31.95 1485.09 1024.677 10.95 10.90 9.629 3.48027 5.02510 31.98 1484.99 1024.705 11.25 11.20 9.592 3.47667 5.02531 31.98 1484.85 1024.710 11.55 11.50 9.558 3.47201 5.02350 31.96 1484.71 1024.703 11.85 11.79 9.505 3.47132 5.03012 32.00 1484.57 1024.743 12.15 12.09 9.428 3.46908 5.03811 32.04 1484.35 1024.793 12.45 12.39 9.387 3.46379 5.03653 32.03 1484.18 1024.787 12.75 12.69 9.354 3.46109 5.03739 32.03 1484.07 1024.795 13.05 12.99 9.319 3.46058 5.04179 32.05 1483.98 1024.822 13.35 13.29 9.292 3.45994 5.04481 32.07 1483.90 1024.841 13.65 13.58 9.283 3.45975 5.04582 32.08 1483.88 1024.849 13.95 13.88 9.277 3.45984 5.04695 32.08 1483.87 1024.856 14.25 14.18 9.266 3.45993 5.04867 32.09 1483.85 1024.868 14.55 14.48 9.247 3.45894 5.05006 32.10 1483.79 1024.878 14.85 14.78 9.221 3.45674 5.05060 32.10 1483.70 1024.883 15.15 15.08 9.210 3.45482 5.04939 32.09 1483.65 1024.878 15.45 15.37 9.202 3.45441 5.05006 32.09 1483.63 1024.883 15.75 15.67 9.190 3.45450 5.05192 32.11 1483.61 1024.896 16.05 15.97 9.178 3.45424 5.05327 32.11 1483.58 1024.905 16.35 16.27 9.171 3.45439 5.05457 32.12 1483.57 1024.913 16.65 16.57 9.166 3.45455 5.05554 32.13 1483.56 1024.920 16.95 16.87 9.165 3.45471 5.05596 32.13 1483.56 1024.924 17.25 17.17 9.165 3.45432 5.05529 32.13 1483.57 1024.922 17.55 17.46 9.163 3.45464 5.05615 32.13 1483.57 1024.928 17.85 17.76 9.161 3.45495 5.05684 32.14 1483.57 1024.933 18.15 18.06 9.160 3.45567 5.05804 32.14 1483.58 1024.941 18.45 18.36 9.161 3.45586 5.05819 32.15 1483.59 1024.943 18.75 18.66 9.161 3.45561 5.05780 32.14 1483.59 1024.942 19.05 18.96 9.160 3.45596 5.05847 32.15 1483.60 1024.947 19.35 19.25 9.162 3.45599 5.05830 32.15 1483.61 1024.947 19.65 19.55 9.164 3.45504 5.05654 32.13 1483.61 1024.939 19.95 19.85 9.163 3.45555 5.05750 32.14 1483.62 1024.945 20.25 20.15 9.158 3.45339 5.05503 32.12 1483.58 1024.933 20.55 20.45 9.147 3.45335 5.05652 32.13 1483.56 1024.943 20.85 20.75 9.135 3.45333 5.05840 32.14 1483.53 1024.955 21.26 21.15 9.124 3.45249 5.05875 32.14 1483.50 1024.959