*2026/01/16 09:57:49.32 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/04/24 01:27:30.000 END TIME : UTC 2024/04/24 01:27:53.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 119 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 35.43 2 Depth metres 0.15 35.27 3 Temperature 'deg C (ITS90)' 9.959 11.565 4 Conductivity S/m 3.32211 3.49818 5 Conductance:Specific S/m 4.54281 5.00278 6 Salinity PSS-78 28.81 31.86 7 Speed:Sound m/s 1486.12 1487.94 8 Density kg/m^3 1021.863 1024.663 $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 : 84 LATITUDE : 48 53.18020 N ! (deg min) LONGITUDE : 125 7.04210 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240424_012730 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:57 119 119 MERGEHDR 1.3 2026/01/16 09:53:49 119 119 HDREDIT2 3.2 2026/01/16 09:55:03 ? ? REMOVECH 8.2 2026/01/16 09:56:15 119 119 CALIB 12.1 2026/01/16 09:56:48 119 119 CLEAN 5.3 2026/01/16 09:57:49 119 119 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:03 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 09:56:15 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:48 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 11.565 3.32211 4.54281 28.81 1487.92 1021.863 0.45 0.45 11.564 3.32397 4.54536 28.83 1487.94 1021.878 0.75 0.75 11.498 3.32664 4.55725 28.90 1487.81 1021.951 1.05 1.05 11.328 3.34377 4.60226 29.20 1487.57 1022.214 1.35 1.35 11.181 3.37110 4.65871 29.58 1487.51 1022.537 1.65 1.65 11.129 3.37704 4.67363 29.68 1487.45 1022.625 1.95 1.94 11.108 3.38033 4.68085 29.73 1487.44 1022.668 2.25 2.24 11.099 3.38309 4.68585 29.77 1487.46 1022.697 2.55 2.54 11.087 3.38508 4.69011 29.79 1487.45 1022.723 2.85 2.84 11.036 3.38887 4.70201 29.87 1487.37 1022.794 3.15 3.14 10.979 3.39642 4.71999 29.99 1487.32 1022.898 3.45 3.44 10.922 3.39996 4.73237 30.07 1487.22 1022.972 3.75 3.74 10.874 3.40997 4.75265 30.21 1487.22 1023.089 4.05 4.04 10.860 3.41290 4.75861 30.25 1487.22 1023.124 4.35 4.34 10.857 3.41390 4.76048 30.27 1487.23 1023.136 4.65 4.64 10.854 3.41537 4.76291 30.28 1487.24 1023.151 4.95 4.93 10.841 3.41740 4.76750 30.31 1487.24 1023.178 5.25 5.23 10.788 3.42056 4.77891 30.39 1487.15 1023.246 5.55 5.53 10.728 3.42907 4.79886 30.52 1487.10 1023.362 5.85 5.83 10.679 3.43438 4.81284 30.61 1487.04 1023.444 6.15 6.13 10.568 3.44262 4.83953 30.79 1486.86 1023.601 6.45 6.43 10.512 3.44447 4.84973 30.85 1486.74 1023.662 6.75 6.73 10.468 3.44607 4.85800 30.91 1486.65 1023.712 7.05 7.03 10.430 3.44639 4.86362 30.94 1486.57 1023.747 7.35 7.32 10.396 3.44736 4.86964 30.98 1486.50 1023.784 7.65 7.62 10.372 3.44772 4.87353 31.01 1486.44 1023.808 7.95 7.92 10.324 3.45094 4.88464 31.08 1486.36 1023.874 8.25 8.22 10.291 3.45430 4.89409 31.14 1486.32 1023.930 8.55 8.52 10.266 3.45453 4.89783 31.16 1486.27 1023.954 8.85 8.82 10.249 3.45484 4.90057 31.18 1486.23 1023.971 9.15 9.12 10.235 3.45488 4.90256 31.19 1486.20 1023.984 9.45 9.42 10.228 3.45454 4.90318 31.20 1486.18 1023.990 9.75 9.71 10.220 3.45550 4.90559 31.21 1486.18 1024.005 10.05 10.01 10.211 3.45533 4.90662 31.22 1486.16 1024.012 10.35 10.31 10.206 3.45566 4.90774 31.23 1486.16 1024.020 10.65 10.61 10.199 3.45576 4.90883 31.23 1486.14 1024.028 10.95 10.91 10.198 3.45697 4.91081 31.25 1486.16 1024.040 11.25 11.21 10.196 3.45783 4.91221 31.26 1486.17 1024.049 11.55 11.51 10.193 3.45855 4.91363 31.27 1486.18 1024.058 11.85 11.80 10.188 3.45983 4.91625 31.28 1486.18 1024.074 12.15 12.10 10.183 3.46013 4.91736 31.29 1486.18 1024.082 12.45 12.40 10.175 3.46000 4.91824 31.30 1486.16 1024.089 12.75 12.70 10.170 3.46014 4.91921 31.30 1486.16 1024.096 13.05 13.00 10.167 3.46015 4.91960 31.30 1486.15 1024.099 13.35 13.30 10.160 3.46020 4.92069 31.31 1486.14 1024.107 13.65 13.60 10.152 3.46095 4.92282 31.32 1486.13 1024.120 13.95 13.89 10.146 3.46241 4.92578 31.34 1486.14 1024.139 14.25 14.19 10.148 3.46362 4.92720 31.35 1486.17 1024.147 14.55 14.49 10.145 3.46540 4.93014 31.37 1486.19 1024.165 14.85 14.79 10.138 3.46685 4.93318 31.39 1486.19 1024.184 15.15 15.09 10.128 3.46715 4.93499 31.41 1486.17 1024.195 15.45 15.39 10.119 3.46741 4.93667 31.42 1486.16 1024.207 15.75 15.69 10.111 3.46836 4.93917 31.43 1486.15 1024.222 16.05 15.99 10.108 3.46903 4.94056 31.44 1486.16 1024.231 16.35 16.28 10.108 3.46917 4.94070 31.44 1486.16 1024.233 16.65 16.58 10.097 3.46937 4.94256 31.46 1486.14 1024.246 16.95 16.88 10.082 3.47036 4.94602 31.48 1486.12 1024.267 17.25 17.18 10.075 3.47137 4.94852 31.49 1486.12 1024.282 17.55 17.48 10.072 3.47267 4.95072 31.51 1486.14 1024.296 17.85 17.78 10.063 3.47332 4.95302 31.52 1486.12 1024.311 18.15 18.08 10.055 3.47538 4.95704 31.55 1486.13 1024.334 18.45 18.37 10.053 3.47634 4.95869 31.56 1486.15 1024.345 18.75 18.67 10.047 3.47697 4.96045 31.57 1486.14 1024.356 19.05 18.97 10.039 3.47768 4.96261 31.59 1486.13 1024.370 19.35 19.27 10.037 3.47819 4.96355 31.59 1486.14 1024.376 19.65 19.57 10.037 3.47791 4.96320 31.59 1486.14 1024.376 19.95 19.87 10.036 3.47835 4.96402 31.60 1486.15 1024.382 20.25 20.16 10.034 3.47861 4.96465 31.60 1486.15 1024.387 20.55 20.46 10.034 3.47827 4.96416 31.60 1486.15 1024.385 20.85 20.76 10.033 3.47876 4.96500 31.60 1486.16 1024.391 21.15 21.06 10.031 3.47853 4.96491 31.60 1486.16 1024.392 21.45 21.36 10.032 3.47918 4.96566 31.61 1486.17 1024.397 21.75 21.66 10.033 3.47918 4.96562 31.61 1486.18 1024.398 22.05 21.96 10.032 3.47885 4.96525 31.61 1486.18 1024.398 22.35 22.25 10.031 3.47871 4.96521 31.60 1486.18 1024.399 22.65 22.55 10.031 3.47906 4.96563 31.61 1486.19 1024.402 22.95 22.85 10.032 3.47921 4.96578 31.61 1486.20 1024.404 23.25 23.15 10.031 3.47918 4.96584 31.61 1486.20 1024.406 23.55 23.45 10.031 3.47931 4.96599 31.61 1486.21 1024.408 23.85 23.75 10.031 3.47981 4.96680 31.62 1486.22 1024.414 24.15 24.05 10.027 3.48129 4.96947 31.63 1486.23 1024.430 24.45 24.34 10.023 3.48206 4.97106 31.64 1486.23 1024.440 24.75 24.64 10.022 3.48375 4.97368 31.66 1486.26 1024.456 25.05 24.94 10.017 3.48461 4.97561 31.68 1486.26 1024.468 25.35 25.24 10.013 3.48666 4.97910 31.70 1486.28 1024.489 25.65 25.54 10.009 3.48814 4.98182 31.72 1486.29 1024.506 25.95 25.84 10.005 3.48888 4.98337 31.73 1486.30 1024.516 26.25 26.14 10.002 3.48964 4.98487 31.74 1486.30 1024.525 26.55 26.43 9.999 3.49041 4.98643 31.75 1486.31 1024.535 26.85 26.73 10.001 3.49065 4.98655 31.75 1486.32 1024.537 27.15 27.03 9.998 3.49118 4.98767 31.76 1486.32 1024.545 27.45 27.33 9.993 3.49203 4.98963 31.77 1486.33 1024.557 27.75 27.63 9.984 3.49179 4.99061 31.78 1486.30 1024.564 28.05 27.93 9.983 3.49251 4.99171 31.78 1486.32 1024.572 28.35 28.23 9.983 3.49264 4.99193 31.78 1486.32 1024.574 28.65 28.52 9.981 3.49319 4.99295 31.79 1486.33 1024.581 28.95 28.82 9.981 3.49316 4.99296 31.79 1486.33 1024.583 29.25 29.12 9.981 3.49270 4.99228 31.79 1486.33 1024.580 29.55 29.42 9.982 3.49289 4.99248 31.79 1486.34 1024.583 29.85 29.72 9.981 3.49275 4.99230 31.79 1486.34 1024.583 30.15 30.02 9.979 3.49313 4.99316 31.79 1486.35 1024.589 30.45 30.31 9.978 3.49275 4.99273 31.79 1486.35 1024.588 30.75 30.61 9.976 3.49316 4.99361 31.79 1486.35 1024.594 31.05 30.91 9.973 3.49320 4.99406 31.80 1486.35 1024.598 31.35 31.21 9.972 3.49375 4.99501 31.80 1486.36 1024.605 31.65 31.51 9.973 3.49381 4.99494 31.80 1486.37 1024.605 31.95 31.81 9.973 3.49340 4.99442 31.80 1486.36 1024.604 32.25 32.11 9.972 3.49384 4.99527 31.81 1486.37 1024.610 32.55 32.40 9.974 3.49466 4.99605 31.81 1486.39 1024.615 32.85 32.70 9.975 3.49527 4.99687 31.82 1486.41 1024.621 33.15 33.00 9.972 3.49580 4.99800 31.82 1486.41 1024.629 33.45 33.30 9.963 3.49642 5.00014 31.84 1486.40 1024.642 33.75 33.60 9.964 3.49622 4.99976 31.84 1486.40 1024.641 34.05 33.90 9.963 3.49668 5.00059 31.84 1486.41 1024.647 34.35 34.19 9.959 3.49687 5.00142 31.85 1486.41 1024.653 34.65 34.49 9.961 3.49711 5.00144 31.85 1486.42 1024.655 34.95 34.79 9.962 3.49818 5.00278 31.86 1486.44 1024.663 35.25 35.09 9.964 3.49741 5.00147 31.85 1486.44 1024.657 35.43 35.27 9.964 3.49723 5.00112 31.84 1486.45 1024.656