*2026/01/16 10:37:50.13 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/04/08 19:28:29.000 END TIME : UTC 2025/04/08 19:28:51.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 114 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 34.19 2 Depth metres 0.15 34.12 3 Temperature 'deg C (ITS90)' 8.935 9.897 4 Conductivity S/m 2.80798 3.14283 5 Conductance:Specific S/m 4.04124 4.62321 6 Salinity PSS-78 25.15 29.07 7 Speed:Sound m/s 1476.92 1480.78 8 Density kg/m^3 1019.313 1022.636 $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 : 2025-087 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 87 LATITUDE : 49 50.63160 N ! (deg min) LONGITUDE : 126 56.37330 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250408_192829 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:26 114 114 MERGEHDR 1.3 2026/01/16 10:35:41 114 114 HDREDIT2 3.2 2026/01/16 10:36:11 ? ? REMOVECH 8.2 2026/01/16 10:36:39 114 114 CALIB 12.1 2026/01/16 10:37:13 114 114 CLEAN 5.3 2026/01/16 10:37:50 114 114 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:11 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 10:36:39 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:13 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 10:37:42 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 9.742 2.80798 4.04124 25.15 1476.92 1019.313 0.45 0.45 9.738 2.80866 4.04266 25.16 1476.92 1019.322 0.75 0.75 9.733 2.81886 4.05784 25.26 1477.03 1019.404 1.05 1.05 9.742 2.82890 4.07131 25.36 1477.18 1019.477 1.35 1.35 9.751 2.83310 4.07633 25.39 1477.26 1019.505 1.65 1.65 9.762 2.83459 4.07716 25.40 1477.32 1019.510 1.95 1.95 9.766 2.84723 4.09483 25.52 1477.49 1019.605 2.25 2.25 9.763 2.85511 4.10650 25.60 1477.58 1019.669 2.55 2.55 9.766 2.86120 4.11489 25.66 1477.66 1019.715 2.85 2.85 9.772 2.86782 4.12378 25.72 1477.76 1019.763 3.15 3.15 9.779 2.88459 4.14704 25.88 1477.99 1019.889 3.45 3.45 9.784 2.90255 4.17220 26.05 1478.23 1020.024 3.75 3.75 9.787 2.90862 4.18058 26.11 1478.31 1020.070 4.05 4.05 9.792 2.91479 4.18892 26.17 1478.40 1020.116 4.35 4.35 9.801 2.92091 4.19656 26.22 1478.51 1020.158 4.65 4.65 9.808 2.92375 4.19988 26.24 1478.56 1020.177 4.95 4.95 9.812 2.92504 4.20119 26.25 1478.60 1020.184 5.25 5.25 9.814 2.92780 4.20491 26.28 1478.64 1020.206 5.55 5.55 9.819 2.93018 4.20774 26.30 1478.69 1020.222 5.85 5.85 9.827 2.93118 4.20825 26.30 1478.73 1020.225 6.15 6.15 9.850 2.95010 4.23255 26.47 1479.02 1020.355 6.45 6.45 9.859 2.97910 4.27304 26.75 1479.40 1020.574 6.75 6.75 9.864 3.00446 4.30878 27.00 1479.73 1020.767 7.05 7.05 9.880 3.03095 4.34486 27.25 1480.09 1020.962 7.35 7.35 9.891 3.05192 4.37349 27.45 1480.38 1021.117 7.65 7.64 9.895 3.05693 4.38016 27.50 1480.46 1021.154 7.95 7.94 9.897 3.05783 4.38121 27.51 1480.48 1021.161 8.25 8.24 9.897 3.06273 4.38823 27.56 1480.54 1021.200 8.55 8.54 9.894 3.06332 4.38946 27.56 1480.55 1021.208 8.85 8.84 9.892 3.06715 4.39523 27.60 1480.59 1021.241 9.15 9.14 9.891 3.06816 4.39684 27.61 1480.61 1021.251 9.45 9.44 9.887 3.06838 4.39758 27.62 1480.60 1021.256 9.75 9.74 9.886 3.06971 4.39968 27.63 1480.62 1021.269 10.05 10.04 9.884 3.06977 4.40001 27.63 1480.62 1021.272 10.35 10.34 9.881 3.07105 4.40215 27.65 1480.63 1021.285 10.65 10.64 9.879 3.07074 4.40197 27.65 1480.63 1021.286 10.95 10.94 9.877 3.07168 4.40362 27.66 1480.64 1021.296 11.25 11.24 9.872 3.07406 4.40761 27.69 1480.66 1021.319 11.55 11.54 9.866 3.07609 4.41131 27.71 1480.67 1021.341 11.85 11.84 9.864 3.07804 4.41442 27.73 1480.69 1021.359 12.15 12.14 9.862 3.07768 4.41415 27.73 1480.69 1021.359 12.45 12.44 9.858 3.08208 4.42088 27.78 1480.74 1021.397 12.75 12.73 9.851 3.08661 4.42824 27.83 1480.78 1021.439 13.05 13.03 9.842 3.08810 4.43160 27.85 1480.77 1021.459 13.35 13.33 9.831 3.08891 4.43414 27.86 1480.76 1021.474 13.65 13.63 9.819 3.08979 4.43699 27.88 1480.74 1021.492 13.95 13.93 9.802 3.09245 4.44287 27.92 1480.73 1021.526 14.25 14.23 9.765 3.09230 4.44745 27.95 1480.63 1021.555 14.55 14.53 9.683 3.09329 4.45940 28.02 1480.43 1021.626 14.85 14.83 9.612 3.09339 4.46862 28.08 1480.24 1021.681 15.15 15.13 9.573 3.09282 4.47291 28.10 1480.13 1021.708 15.45 15.43 9.535 3.09183 4.47631 28.12 1480.02 1021.730 15.75 15.73 9.497 3.09166 4.48100 28.15 1479.91 1021.759 16.05 16.03 9.467 3.09134 4.48449 28.17 1479.83 1021.781 16.35 16.33 9.443 3.09078 4.48678 28.18 1479.76 1021.796 16.65 16.63 9.417 3.09059 4.48990 28.20 1479.69 1021.816 16.95 16.93 9.387 3.09026 4.49335 28.22 1479.61 1021.838 17.25 17.22 9.361 3.08922 4.49522 28.23 1479.53 1021.851 17.55 17.52 9.344 3.08891 4.49698 28.24 1479.49 1021.862 17.85 17.82 9.321 3.08859 4.49954 28.26 1479.42 1021.879 18.15 18.12 9.304 3.08792 4.50077 28.26 1479.37 1021.888 18.45 18.42 9.297 3.08761 4.50128 28.27 1479.35 1021.892 18.75 18.72 9.291 3.08727 4.50154 28.27 1479.34 1021.895 19.05 19.02 9.285 3.08713 4.50219 28.27 1479.32 1021.900 19.35 19.32 9.280 3.08586 4.50093 28.26 1479.30 1021.895 19.65 19.62 9.269 3.08568 4.50221 28.27 1479.27 1021.904 19.95 19.92 9.256 3.08584 4.50408 28.28 1479.24 1021.916 20.25 20.22 9.252 3.08557 4.50425 28.28 1479.23 1021.918 20.55 20.52 9.247 3.08618 4.50576 28.29 1479.23 1021.928 20.85 20.82 9.240 3.08576 4.50613 28.29 1479.21 1021.932 21.15 21.11 9.232 3.08460 4.50545 28.29 1479.18 1021.930 21.45 21.41 9.223 3.08434 4.50627 28.29 1479.16 1021.936 21.75 21.71 9.207 3.08219 4.50518 28.28 1479.09 1021.932 22.05 22.01 9.174 3.08103 4.50779 28.30 1478.99 1021.949 22.35 22.31 9.135 3.07952 4.51086 28.31 1478.87 1021.969 22.65 22.61 9.102 3.08025 4.51617 28.34 1478.79 1022.001 22.95 22.91 9.078 3.08045 4.51968 28.37 1478.73 1022.023 23.25 23.21 9.065 3.07998 4.52074 28.37 1478.69 1022.030 23.55 23.51 9.061 3.07998 4.52128 28.37 1478.69 1022.035 23.85 23.81 9.058 3.08163 4.52403 28.39 1478.71 1022.051 24.15 24.11 9.057 3.08239 4.52534 28.40 1478.72 1022.059 24.45 24.41 9.054 3.08557 4.53047 28.44 1478.75 1022.089 24.75 24.71 9.046 3.08872 4.53607 28.47 1478.77 1022.121 25.05 25.00 9.046 3.09030 4.53838 28.49 1478.80 1022.134 25.35 25.30 9.045 3.09201 4.54101 28.51 1478.82 1022.150 25.65 25.60 9.037 3.09346 4.54424 28.53 1478.82 1022.169 25.95 25.90 9.032 3.09411 4.54590 28.54 1478.82 1022.180 26.25 26.20 9.026 3.09532 4.54851 28.56 1478.82 1022.195 26.55 26.50 9.012 3.09655 4.55214 28.58 1478.81 1022.217 26.85 26.80 8.999 3.09964 4.55846 28.62 1478.81 1022.253 27.15 27.10 8.988 3.10170 4.56294 28.65 1478.81 1022.279 27.45 27.40 8.975 3.10337 4.56715 28.68 1478.80 1022.304 27.75 27.70 8.962 3.10464 4.57079 28.70 1478.79 1022.326 28.05 28.00 8.952 3.10507 4.57272 28.72 1478.77 1022.338 28.35 28.29 8.944 3.10585 4.57491 28.73 1478.76 1022.351 28.65 28.59 8.937 3.10782 4.57882 28.76 1478.77 1022.374 28.95 28.89 8.935 3.10953 4.58154 28.77 1478.80 1022.390 29.25 29.19 8.936 3.11168 4.58457 28.80 1478.83 1022.408 29.55 29.49 8.939 3.11444 4.58829 28.82 1478.88 1022.429 29.85 29.79 8.942 3.11889 4.59450 28.86 1478.94 1022.464 30.15 30.09 8.945 3.12044 4.59627 28.88 1478.98 1022.475 30.45 30.39 8.950 3.12268 4.59891 28.90 1479.02 1022.490 30.75 30.69 8.954 3.12431 4.60077 28.91 1479.06 1022.501 31.05 30.99 8.956 3.12476 4.60117 28.91 1479.08 1022.505 31.35 31.29 8.958 3.12580 4.60240 28.92 1479.10 1022.513 31.65 31.58 8.962 3.13177 4.61070 28.98 1479.19 1022.559 31.95 31.88 8.971 3.13633 4.61619 29.02 1479.28 1022.589 32.25 32.18 8.978 3.13749 4.61701 29.02 1479.31 1022.595 32.55 32.48 8.982 3.13831 4.61757 29.03 1479.34 1022.599 32.85 32.78 8.985 3.13856 4.61763 29.03 1479.36 1022.601 33.15 33.08 8.984 3.13831 4.61735 29.03 1479.36 1022.600 33.45 33.38 8.986 3.13938 4.61867 29.04 1479.38 1022.609 33.75 33.68 8.986 3.14028 4.61992 29.05 1479.40 1022.617 34.19 34.12 8.990 3.14283 4.62321 29.07 1479.44 1022.636