*2026/01/16 09:57:47.89 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/02/15 17:44:22.000 END TIME : UTC 2024/02/15 17:44:39.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 87 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 25.99 2 Depth metres 0.15 25.92 3 Temperature 'deg C (ITS90)' 8.71 10.057 4 Conductivity S/m 2.87234 3.3174 5 Conductance:Specific S/m 4.26034 4.73473 6 Salinity PSS-78 26.54 29.98 7 Speed:Sound m/s 1474.75 1484.27 8 Density kg/m^3 1020.547 1023.148 $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 : 49 LATITUDE : 48 54.52640 N ! (deg min) LONGITUDE : 125 20.34580 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240215_174422 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:55 87 87 MERGEHDR 1.3 2026/01/16 09:53:47 87 87 HDREDIT2 3.2 2026/01/16 09:55:01 ? ? REMOVECH 8.2 2026/01/16 09:56:14 87 87 CALIB 12.1 2026/01/16 09:56:46 87 87 CLEAN 5.3 2026/01/16 09:57:47 87 87 $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 8.723 2.87584 4.26389 26.57 1474.82 1020.563 0.45 0.45 8.711 2.87422 4.26297 26.56 1474.77 1020.560 0.75 0.75 8.710 2.87234 4.26034 26.54 1474.75 1020.547 1.05 1.05 8.720 2.88063 4.27140 26.62 1474.88 1020.607 1.35 1.35 8.715 2.88360 4.27642 26.65 1474.91 1020.635 1.65 1.65 8.757 2.89205 4.28360 26.70 1475.14 1020.673 1.95 1.95 8.756 2.89451 4.28735 26.73 1475.17 1020.695 2.25 2.25 8.777 2.89541 4.28606 26.72 1475.25 1020.688 2.55 2.55 8.804 2.89656 4.28437 26.72 1475.34 1020.679 2.85 2.85 8.859 2.90443 4.28904 26.75 1475.60 1020.703 3.15 3.15 8.900 2.91415 4.29816 26.82 1475.85 1020.751 3.45 3.45 8.912 2.92781 4.31674 26.95 1476.06 1020.852 3.75 3.75 8.971 2.93887 4.32560 27.02 1476.37 1020.898 4.05 4.04 9.042 2.94940 4.33196 27.07 1476.70 1020.930 4.35 4.34 9.110 2.96974 4.35317 27.22 1477.15 1021.042 4.65 4.64 9.207 2.98163 4.35819 27.27 1477.58 1021.065 4.95 4.94 9.322 3.01829 4.39708 27.55 1478.35 1021.270 5.25 5.24 9.382 3.03878 4.41910 27.71 1478.78 1021.386 5.55 5.54 9.436 3.05558 4.43661 27.84 1479.14 1021.479 5.85 5.84 9.493 3.09047 4.47988 28.15 1479.73 1021.711 6.15 6.14 9.567 3.11819 4.51031 28.37 1480.28 1021.873 6.45 6.44 9.627 3.13208 4.52256 28.46 1480.62 1021.937 6.75 6.74 9.674 3.15156 4.54451 28.62 1480.99 1022.054 7.05 7.04 9.727 3.15538 4.54309 28.61 1481.18 1022.045 7.35 7.34 9.768 3.16037 4.54494 28.63 1481.36 1022.053 7.65 7.64 9.814 3.16906 4.55144 28.68 1481.59 1022.087 7.95 7.94 9.838 3.17085 4.55088 28.68 1481.69 1022.084 8.25 8.24 9.847 3.17084 4.54969 28.67 1481.71 1022.078 8.55 8.53 9.857 3.17323 4.55177 28.69 1481.78 1022.090 8.85 8.83 9.866 3.17543 4.55377 28.70 1481.83 1022.101 9.15 9.13 9.873 3.17592 4.55355 28.70 1481.86 1022.101 9.45 9.43 9.882 3.17674 4.55359 28.70 1481.90 1022.102 9.75 9.73 9.885 3.17769 4.55456 28.71 1481.92 1022.108 10.05 10.03 9.889 3.17896 4.55579 28.72 1481.96 1022.116 10.35 10.33 9.892 3.17933 4.55591 28.72 1481.97 1022.118 10.65 10.63 9.895 3.18027 4.55690 28.73 1482.00 1022.124 10.95 10.93 9.899 3.18111 4.55755 28.73 1482.02 1022.129 11.25 11.23 9.909 3.18354 4.55971 28.75 1482.09 1022.141 11.55 11.53 9.917 3.18843 4.56569 28.79 1482.17 1022.174 11.85 11.83 9.931 3.19230 4.56939 28.82 1482.26 1022.195 12.15 12.13 9.949 3.19714 4.57404 28.85 1482.37 1022.220 12.45 12.42 9.955 3.19832 4.57492 28.86 1482.41 1022.226 12.75 12.72 9.957 3.19880 4.57533 28.86 1482.42 1022.229 13.05 13.02 9.965 3.20082 4.57716 28.88 1482.47 1022.240 13.35 13.32 9.968 3.20414 4.58158 28.91 1482.53 1022.265 13.65 13.62 9.975 3.20535 4.58231 28.91 1482.57 1022.270 13.95 13.92 9.986 3.20644 4.58248 28.91 1482.61 1022.271 14.25 14.22 9.998 3.20862 4.58404 28.93 1482.67 1022.280 14.55 14.52 9.994 3.20798 4.58358 28.92 1482.66 1022.279 14.85 14.82 9.996 3.20845 4.58408 28.93 1482.68 1022.283 15.15 15.12 10.019 3.21780 4.59433 29.00 1482.86 1022.338 15.45 15.42 10.037 3.22398 4.60082 29.05 1482.98 1022.374 15.75 15.72 10.053 3.23491 4.61437 29.14 1483.16 1022.448 16.05 16.01 10.057 3.23867 4.61914 29.18 1483.23 1022.475 16.35 16.31 10.057 3.24216 4.62408 29.21 1483.27 1022.503 16.65 16.61 10.053 3.24465 4.62821 29.24 1483.30 1022.527 16.95 16.91 10.050 3.24757 4.63278 29.27 1483.33 1022.553 17.25 17.21 10.048 3.24930 4.63549 29.29 1483.35 1022.569 17.55 17.51 10.047 3.25140 4.63868 29.31 1483.38 1022.588 17.85 17.81 10.044 3.25404 4.64275 29.34 1483.41 1022.612 18.15 18.11 10.044 3.25681 4.64670 29.37 1483.44 1022.635 18.45 18.41 10.043 3.25976 4.65106 29.40 1483.48 1022.660 18.75 18.71 10.043 3.26089 4.65264 29.41 1483.50 1022.670 19.05 19.00 10.044 3.26305 4.65562 29.43 1483.53 1022.687 19.35 19.30 10.042 3.26466 4.65814 29.45 1483.55 1022.702 19.65 19.60 10.041 3.26587 4.66012 29.46 1483.57 1022.714 19.95 19.90 10.037 3.26533 4.65978 29.46 1483.56 1022.714 20.25 20.20 10.031 3.26603 4.66161 29.47 1483.55 1022.726 20.55 20.50 10.030 3.26617 4.66191 29.47 1483.56 1022.729 20.85 20.80 10.028 3.26691 4.66323 29.48 1483.57 1022.737 21.15 21.10 10.026 3.27158 4.67023 29.53 1483.62 1022.777 21.45 21.40 10.025 3.27425 4.67417 29.56 1483.66 1022.800 21.75 21.70 10.025 3.27660 4.67747 29.58 1483.69 1022.819 22.05 22.00 10.028 3.28157 4.68427 29.63 1483.76 1022.857 22.35 22.29 10.029 3.28416 4.68779 29.65 1483.80 1022.878 22.65 22.59 10.031 3.28482 4.68846 29.66 1483.82 1022.882 22.95 22.89 10.031 3.28509 4.68883 29.66 1483.83 1022.886 23.25 23.19 10.033 3.28549 4.68915 29.66 1483.84 1022.888 23.55 23.49 10.032 3.28539 4.68911 29.66 1483.85 1022.890 23.85 23.79 10.033 3.28614 4.69005 29.67 1483.86 1022.896 24.15 24.09 10.034 3.28891 4.69384 29.69 1483.90 1022.918 24.45 24.39 10.036 3.29458 4.70173 29.75 1483.98 1022.962 24.75 24.69 10.037 3.29968 4.70881 29.80 1484.05 1023.002 25.05 24.98 10.036 3.30398 4.71517 29.84 1484.10 1023.038 25.35 25.28 10.036 3.30972 4.72336 29.90 1484.18 1023.084 25.65 25.58 10.033 3.31740 4.73473 29.98 1484.27 1023.148 25.99 25.92 10.021 3.27376 4.67399 29.55 1483.71 1022.818