*2026/01/16 09:57:51.29 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/06/11 16:36:42.000 END TIME : UTC 2024/06/11 16:36:57.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 76 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 22.67 2 Depth metres 0.15 22.56 3 Temperature 'deg C (ITS90)' 9.39 12.671 4 Conductivity S/m 3.47719 3.52419 5 Conductance:Specific S/m 4.65788 5.05685 6 Salinity PSS-78 29.72 32.17 7 Speed:Sound m/s 1484.53 1492.97 8 Density kg/m^3 1022.378 1024.941 $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 : 141 LATITUDE : 48 51.16490 N ! (deg min) LONGITUDE : 125 11.75560 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240611_163642 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:01 76 76 MERGEHDR 1.3 2026/01/16 09:53:53 76 76 HDREDIT2 3.2 2026/01/16 09:55:06 ? ? REMOVECH 8.2 2026/01/16 09:56:18 76 76 CALIB 12.1 2026/01/16 09:56:51 76 76 CLEAN 5.3 2026/01/16 09:57:51 76 76 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:06 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 09:56:18 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:51 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 12.671 3.52204 4.67476 29.84 1492.97 1022.463 0.45 0.45 12.620 3.50460 4.65788 29.72 1492.66 1022.378 0.75 0.75 12.590 3.50408 4.66090 29.73 1492.58 1022.399 1.05 1.05 12.525 3.52301 4.69428 29.97 1492.64 1022.591 1.35 1.35 12.385 3.52419 4.71335 30.09 1492.31 1022.713 1.65 1.64 12.088 3.52347 4.75017 30.32 1491.57 1022.949 1.95 1.94 11.825 3.52218 4.78231 30.52 1490.90 1023.155 2.25 2.24 11.769 3.52124 4.78839 30.56 1490.76 1023.195 2.55 2.54 11.545 3.51752 4.81259 30.71 1490.16 1023.352 2.85 2.84 11.362 3.51118 4.82812 30.80 1489.63 1023.456 3.15 3.14 11.000 3.50190 4.86375 31.01 1488.62 1023.686 3.45 3.44 10.658 3.49769 4.90449 31.26 1487.71 1023.939 3.75 3.74 10.420 3.49513 4.93382 31.44 1487.08 1024.120 4.05 4.04 10.205 3.49417 4.96262 31.62 1486.52 1024.296 4.35 4.33 10.131 3.49218 4.97019 31.66 1486.31 1024.344 4.65 4.63 10.106 3.49168 4.97301 31.68 1486.25 1024.362 4.95 4.93 10.052 3.49077 4.97940 31.71 1486.10 1024.402 5.25 5.23 10.023 3.48917 4.98127 31.72 1486.02 1024.416 5.55 5.53 10.020 3.48768 4.97958 31.71 1485.99 1024.408 5.85 5.83 10.000 3.48743 4.98198 31.73 1485.95 1024.424 6.15 6.12 9.970 3.48720 4.98593 31.75 1485.87 1024.449 6.45 6.42 9.932 3.48629 4.99007 31.77 1485.77 1024.475 6.75 6.72 9.906 3.48575 4.99304 31.79 1485.70 1024.494 7.05 7.02 9.877 3.48527 4.99648 31.81 1485.62 1024.516 7.35 7.32 9.871 3.48451 4.99624 31.81 1485.60 1024.517 7.65 7.62 9.835 3.48417 5.00101 31.84 1485.51 1024.547 7.95 7.92 9.794 3.48458 5.00739 31.88 1485.42 1024.585 8.25 8.21 9.772 3.48532 5.01168 31.91 1485.37 1024.612 8.55 8.51 9.754 3.48946 5.02029 31.96 1485.38 1024.661 8.85 8.81 9.752 3.49136 5.02320 31.98 1485.41 1024.679 9.15 9.11 9.753 3.49236 5.02451 31.99 1485.43 1024.687 9.45 9.41 9.757 3.49366 5.02589 32.00 1485.46 1024.696 9.75 9.71 9.759 3.49459 5.02694 32.01 1485.48 1024.703 10.05 10.01 9.758 3.49523 5.02795 32.02 1485.49 1024.710 10.35 10.30 9.757 3.49644 5.02984 32.03 1485.51 1024.721 10.65 10.60 9.775 3.50206 5.03534 32.07 1485.63 1024.752 10.95 10.90 9.786 3.50466 5.03742 32.09 1485.69 1024.764 11.25 11.20 9.795 3.50579 5.03779 32.09 1485.73 1024.767 11.55 11.50 9.801 3.50534 5.03625 32.08 1485.75 1024.759 11.85 11.80 9.802 3.50581 5.03675 32.09 1485.76 1024.763 12.15 12.09 9.795 3.50395 5.03517 32.07 1485.72 1024.756 12.45 12.39 9.770 3.50211 5.03610 32.08 1485.64 1024.764 12.75 12.69 9.749 3.50078 5.03723 32.08 1485.58 1024.773 13.05 12.99 9.733 3.49915 5.03725 32.08 1485.52 1024.775 13.35 13.29 9.716 3.49828 5.03844 32.08 1485.47 1024.784 13.65 13.59 9.706 3.49812 5.03965 32.09 1485.45 1024.792 13.95 13.88 9.694 3.49638 5.03884 32.08 1485.40 1024.790 14.25 14.18 9.679 3.49490 5.03901 32.08 1485.35 1024.793 14.55 14.48 9.674 3.49487 5.03967 32.09 1485.34 1024.798 14.85 14.78 9.668 3.49448 5.03991 32.09 1485.33 1024.801 15.15 15.08 9.665 3.49389 5.03953 32.08 1485.32 1024.800 15.45 15.38 9.657 3.49365 5.04038 32.09 1485.30 1024.807 15.75 15.68 9.628 3.49083 5.04049 32.09 1485.19 1024.810 16.05 15.97 9.608 3.48996 5.04218 32.10 1485.13 1024.822 16.35 16.27 9.580 3.48632 5.04092 32.08 1485.02 1024.818 16.65 16.57 9.542 3.48351 5.04242 32.09 1484.89 1024.829 16.95 16.87 9.511 3.48242 5.04536 32.10 1484.81 1024.849 17.25 17.17 9.493 3.48197 5.04730 32.12 1484.76 1024.861 17.55 17.47 9.470 3.48109 5.04944 32.13 1484.69 1024.876 17.85 17.76 9.452 3.48058 5.05142 32.14 1484.64 1024.889 18.15 18.06 9.445 3.48043 5.05221 32.14 1484.63 1024.895 18.45 18.36 9.443 3.48116 5.05348 32.15 1484.64 1024.903 18.75 18.66 9.440 3.48179 5.05493 32.16 1484.64 1024.913 19.05 18.96 9.434 3.48144 5.05531 32.16 1484.63 1024.916 19.35 19.26 9.434 3.48152 5.05542 32.16 1484.63 1024.918 19.65 19.55 9.428 3.48063 5.05500 32.16 1484.61 1024.917 19.95 19.85 9.422 3.48007 5.05496 32.16 1484.60 1024.919 20.25 20.15 9.423 3.48029 5.05512 32.16 1484.61 1024.921 20.55 20.45 9.419 3.47988 5.05513 32.16 1484.60 1024.922 20.85 20.75 9.420 3.48012 5.05541 32.16 1484.60 1024.925 21.15 21.05 9.423 3.47983 5.05453 32.16 1484.61 1024.922 21.45 21.34 9.422 3.48041 5.05550 32.16 1484.62 1024.928 21.75 21.64 9.423 3.47913 5.05351 32.15 1484.61 1024.918 22.05 21.94 9.397 3.47719 5.05443 32.15 1484.53 1024.926 22.35 22.24 9.390 3.47811 5.05685 32.17 1484.53 1024.941 22.67 22.56 9.397 3.47762 5.05517 32.16 1484.54 1024.933