*2026/01/16 09:57:57.13 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/11/26 00:36:04.000 END TIME : UTC 2024/11/26 00:36:24.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 102 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 30.34 2 Depth metres 0.15 30.22 3 Temperature 'deg C (ITS90)' 10.547 10.971 4 Conductivity S/m 3.31971 3.45988 5 Conductance:Specific S/m 4.66949 4.80939 6 Salinity PSS-78 29.59 30.61 7 Speed:Sound m/s 1485.24 1488.48 8 Density kg/m^3 1022.645 1023.504 $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 : 304 LATITUDE : 48 51.21920 N ! (deg min) LONGITUDE : 125 7.47030 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20241126_003604 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:09 102 102 MERGEHDR 1.3 2026/01/16 09:54:12 102 102 HDREDIT2 3.2 2026/01/16 09:55:15 ? ? REMOVECH 8.2 2026/01/16 09:56:25 102 102 CALIB 12.1 2026/01/16 09:56:59 102 102 CLEAN 5.3 2026/01/16 09:57:57 102 102 $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 09:56:25 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:59 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 10.547 3.31971 4.66949 29.59 1485.24 1022.645 0.45 0.45 10.589 3.32469 4.67100 29.61 1485.41 1022.651 0.75 0.75 10.669 3.33759 4.67862 29.67 1485.78 1022.688 1.05 1.05 10.731 3.36105 4.70326 29.85 1486.23 1022.819 1.35 1.35 10.743 3.36702 4.70999 29.90 1486.33 1022.856 1.65 1.64 10.722 3.36963 4.71648 29.94 1486.31 1022.894 1.95 1.94 10.725 3.37309 4.72093 29.97 1486.37 1022.920 2.25 2.24 10.754 3.37666 4.72205 29.98 1486.49 1022.925 2.55 2.54 10.782 3.37759 4.71969 29.97 1486.58 1022.911 2.85 2.84 10.786 3.37794 4.71966 29.97 1486.60 1022.912 3.15 3.14 10.786 3.37773 4.71939 29.97 1486.60 1022.911 3.45 3.44 10.785 3.37887 4.72112 29.98 1486.61 1022.922 3.75 3.74 10.784 3.37978 4.72253 29.99 1486.63 1022.931 4.05 4.04 10.781 3.38006 4.72322 29.99 1486.63 1022.937 4.35 4.34 10.777 3.38127 4.72545 30.01 1486.64 1022.950 4.65 4.63 10.778 3.38249 4.72709 30.02 1486.66 1022.961 4.95 4.93 10.778 3.38382 4.72886 30.03 1486.68 1022.972 5.25 5.23 10.781 3.38657 4.73233 30.06 1486.73 1022.992 5.55 5.53 10.783 3.38781 4.73386 30.07 1486.75 1023.001 5.85 5.83 10.786 3.38851 4.73446 30.07 1486.77 1023.005 6.15 6.13 10.786 3.38998 4.73640 30.09 1486.79 1023.017 6.45 6.43 10.788 3.39169 4.73859 30.10 1486.82 1023.030 6.75 6.73 10.790 3.39473 4.74260 30.13 1486.87 1023.053 7.05 7.03 10.794 3.39700 4.74520 30.15 1486.91 1023.069 7.35 7.32 10.799 3.39910 4.74745 30.17 1486.95 1023.082 7.65 7.62 10.803 3.39968 4.74780 30.17 1486.97 1023.085 7.95 7.92 10.805 3.40076 4.74903 30.18 1487.00 1023.093 8.25 8.22 10.807 3.40155 4.74978 30.18 1487.02 1023.098 8.55 8.52 10.811 3.40256 4.75078 30.19 1487.04 1023.104 8.85 8.82 10.813 3.40330 4.75150 30.20 1487.06 1023.109 9.15 9.12 10.814 3.40474 4.75336 30.21 1487.09 1023.121 9.45 9.42 10.816 3.40532 4.75390 30.21 1487.10 1023.125 9.75 9.72 10.818 3.40635 4.75502 30.22 1487.13 1023.132 10.05 10.02 10.821 3.40795 4.75692 30.23 1487.16 1023.143 10.35 10.31 10.821 3.40920 4.75862 30.25 1487.18 1023.154 10.65 10.61 10.822 3.40914 4.75842 30.24 1487.18 1023.154 10.95 10.91 10.823 3.40986 4.75926 30.25 1487.20 1023.160 11.25 11.21 10.825 3.41072 4.76024 30.26 1487.22 1023.166 11.55 11.51 10.830 3.41161 4.76088 30.26 1487.25 1023.171 11.85 11.81 10.834 3.41234 4.76135 30.27 1487.27 1023.174 12.15 12.11 10.840 3.41269 4.76103 30.26 1487.30 1023.173 12.45 12.41 10.842 3.41575 4.76507 30.29 1487.34 1023.196 12.75 12.71 10.846 3.41781 4.76731 30.31 1487.38 1023.210 13.05 13.00 10.851 3.41845 4.76758 30.31 1487.41 1023.212 13.35 13.30 10.857 3.42050 4.76960 30.33 1487.45 1023.224 13.65 13.60 10.859 3.41979 4.76843 30.32 1487.45 1023.218 13.95 13.90 10.860 3.41985 4.76837 30.32 1487.46 1023.219 14.25 14.20 10.860 3.42051 4.76925 30.32 1487.47 1023.225 14.55 14.50 10.861 3.42054 4.76912 30.32 1487.48 1023.226 14.85 14.80 10.861 3.42095 4.76969 30.33 1487.49 1023.230 15.15 15.10 10.862 3.42101 4.76975 30.33 1487.50 1023.232 15.45 15.40 10.862 3.42168 4.77062 30.33 1487.51 1023.238 15.75 15.69 10.862 3.42185 4.77085 30.33 1487.52 1023.240 16.05 15.99 10.863 3.42208 4.77103 30.34 1487.53 1023.242 16.35 16.29 10.868 3.42276 4.77127 30.34 1487.56 1023.245 16.65 16.59 10.870 3.42324 4.77171 30.34 1487.57 1023.248 16.95 16.89 10.875 3.42435 4.77263 30.35 1487.60 1023.254 17.25 17.19 10.882 3.42507 4.77275 30.35 1487.63 1023.255 17.55 17.49 10.886 3.42650 4.77421 30.36 1487.66 1023.264 17.85 17.79 10.893 3.42786 4.77512 30.37 1487.70 1023.270 18.15 18.08 10.897 3.42842 4.77539 30.37 1487.72 1023.272 18.45 18.38 10.900 3.42913 4.77589 30.37 1487.75 1023.276 18.75 18.68 10.902 3.43041 4.77740 30.38 1487.77 1023.286 19.05 18.98 10.904 3.43069 4.77763 30.39 1487.78 1023.288 19.35 19.28 10.912 3.43175 4.77794 30.39 1487.82 1023.290 19.65 19.58 10.915 3.43232 4.77845 30.39 1487.84 1023.294 19.95 19.88 10.916 3.43345 4.77986 30.40 1487.86 1023.303 20.25 20.18 10.922 3.43414 4.78004 30.40 1487.89 1023.305 20.55 20.48 10.926 3.43517 4.78093 30.41 1487.92 1023.310 20.85 20.77 10.928 3.43538 4.78089 30.41 1487.93 1023.311 21.15 21.07 10.929 3.43575 4.78137 30.41 1487.94 1023.315 21.45 21.37 10.930 3.43672 4.78248 30.42 1487.96 1023.322 21.75 21.67 10.937 3.43751 4.78273 30.42 1487.99 1023.325 22.05 21.97 10.940 3.43786 4.78279 30.42 1488.01 1023.326 22.35 22.27 10.942 3.43825 4.78308 30.43 1488.02 1023.328 22.65 22.57 10.943 3.43853 4.78329 30.43 1488.03 1023.331 22.95 22.87 10.945 3.43949 4.78438 30.44 1488.05 1023.338 23.25 23.17 10.947 3.44059 4.78565 30.44 1488.08 1023.346 23.55 23.46 10.947 3.44117 4.78645 30.45 1488.09 1023.352 23.85 23.76 10.949 3.44297 4.78869 30.47 1488.12 1023.365 24.15 24.06 10.952 3.44438 4.79029 30.48 1488.15 1023.375 24.45 24.36 10.953 3.44479 4.79064 30.48 1488.16 1023.378 24.75 24.66 10.955 3.44462 4.79021 30.48 1488.17 1023.377 25.05 24.96 10.956 3.44553 4.79125 30.48 1488.19 1023.383 25.35 25.26 10.957 3.44619 4.79216 30.49 1488.20 1023.390 25.65 25.56 10.957 3.44712 4.79336 30.50 1488.22 1023.398 25.95 25.86 10.957 3.44769 4.79425 30.51 1488.23 1023.404 26.25 26.15 10.959 3.44839 4.79495 30.51 1488.25 1023.409 26.55 26.45 10.958 3.44814 4.79464 30.51 1488.25 1023.408 26.85 26.75 10.961 3.44899 4.79551 30.51 1488.27 1023.414 27.15 27.05 10.960 3.44944 4.79621 30.52 1488.28 1023.419 27.45 27.35 10.960 3.44956 4.79636 30.52 1488.28 1023.421 27.75 27.65 10.961 3.44968 4.79647 30.52 1488.29 1023.423 28.05 27.95 10.959 3.45069 4.79810 30.53 1488.30 1023.434 28.35 28.25 10.953 3.45154 4.80007 30.55 1488.30 1023.446 28.65 28.54 10.954 3.45247 4.80121 30.55 1488.32 1023.454 28.95 28.84 10.959 3.45312 4.80149 30.56 1488.35 1023.456 29.25 29.14 10.966 3.45459 4.80262 30.56 1488.39 1023.463 29.55 29.44 10.970 3.45672 4.80499 30.58 1488.43 1023.477 29.85 29.74 10.971 3.45777 4.80629 30.59 1488.45 1023.485 30.15 30.04 10.970 3.45970 4.80911 30.61 1488.47 1023.502 30.34 30.22 10.970 3.45988 4.80939 30.61 1488.48 1023.504