*2026/01/16 10:37:49.76 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/03/11 19:21:48.000 END TIME : UTC 2025/03/11 19:22:12.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 122 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 36.3 2 Depth metres 0.15 36.25 3 Temperature 'deg C (ITS90)' 7.724 8.444 4 Conductivity S/m 2.49785 2.94943 5 Conductance:Specific S/m 3.8098 4.40954 6 Salinity PSS-78 23.37 27.52 7 Speed:Sound m/s 1467.14 1475.5 8 Density kg/m^3 1018.183 1021.51 $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 : 78 LATITUDE : 49 14.62010 N ! (deg min) LONGITUDE : 125 51.03540 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250311_192148 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:26 122 122 MERGEHDR 1.3 2026/01/16 10:35:41 122 122 HDREDIT2 3.2 2026/01/16 10:36:11 ? ? REMOVECH 8.2 2026/01/16 10:36:38 122 122 CALIB 12.1 2026/01/16 10:37:13 122 122 CLEAN 5.3 2026/01/16 10:37:49 122 122 $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 10:36:38 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 7.794 2.49880 3.80980 23.37 1467.30 1018.183 0.45 0.45 7.745 2.49785 3.81413 23.39 1467.14 1018.209 0.75 0.75 7.724 2.50357 3.82522 23.47 1467.15 1018.269 1.05 1.05 7.724 2.51186 3.83799 23.55 1467.26 1018.338 1.35 1.35 7.736 2.52774 3.86076 23.71 1467.51 1018.459 1.65 1.65 7.742 2.53173 3.86617 23.74 1467.58 1018.489 1.95 1.95 7.746 2.53803 3.87530 23.81 1467.68 1018.538 2.25 2.25 7.758 2.54382 3.88280 23.86 1467.79 1018.579 2.55 2.55 7.792 2.55077 3.88930 23.91 1467.99 1018.613 2.85 2.85 7.861 2.59014 3.94101 24.26 1468.71 1018.886 3.15 3.15 7.934 2.66594 4.04745 24.99 1469.89 1019.450 3.45 3.45 7.989 2.69603 4.08620 25.26 1470.45 1019.656 3.75 3.75 8.043 2.72085 4.11713 25.48 1470.93 1019.820 4.05 4.05 8.093 2.73192 4.12765 25.56 1471.22 1019.876 4.35 4.35 8.140 2.73775 4.13063 25.58 1471.44 1019.891 4.65 4.65 8.185 2.74475 4.13549 25.62 1471.67 1019.917 4.95 4.95 8.229 2.75685 4.14824 25.71 1471.96 1019.985 5.25 5.25 8.259 2.77646 4.17399 25.89 1472.30 1020.122 5.55 5.55 8.289 2.78555 4.18394 25.96 1472.50 1020.176 5.85 5.85 8.314 2.80458 4.20929 26.14 1472.82 1020.312 6.15 6.15 8.331 2.82499 4.23775 26.34 1473.14 1020.465 6.45 6.45 8.352 2.83725 4.25354 26.45 1473.36 1020.550 6.75 6.75 8.363 2.83992 4.25603 26.47 1473.43 1020.564 7.05 7.05 8.374 2.84308 4.25943 26.49 1473.50 1020.583 7.35 7.35 8.382 2.84632 4.26328 26.52 1473.57 1020.605 7.65 7.65 8.388 2.84868 4.26605 26.54 1473.62 1020.621 7.95 7.95 8.391 2.85013 4.26775 26.55 1473.66 1020.631 8.25 8.25 8.395 2.85086 4.26841 26.55 1473.68 1020.636 8.55 8.55 8.398 2.85151 4.26905 26.56 1473.70 1020.640 8.85 8.85 8.399 2.85320 4.27145 26.58 1473.73 1020.654 9.15 9.15 8.399 2.85331 4.27157 26.58 1473.74 1020.656 9.45 9.45 8.399 2.85323 4.27142 26.57 1473.74 1020.657 9.75 9.75 8.400 2.85353 4.27175 26.58 1473.75 1020.660 10.05 10.05 8.400 2.85353 4.27174 26.58 1473.76 1020.661 10.35 10.35 8.400 2.85471 4.27350 26.59 1473.78 1020.672 10.65 10.65 8.401 2.85485 4.27365 26.59 1473.79 1020.674 10.95 10.95 8.401 2.85519 4.27417 26.59 1473.80 1020.678 11.25 11.24 8.400 2.85502 4.27396 26.59 1473.80 1020.678 11.55 11.54 8.400 2.85546 4.27459 26.60 1473.81 1020.683 11.85 11.84 8.401 2.85612 4.27552 26.60 1473.82 1020.689 12.15 12.14 8.399 2.85658 4.27638 26.61 1473.83 1020.695 12.45 12.44 8.400 2.85921 4.28021 26.63 1473.87 1020.717 12.75 12.74 8.400 2.86259 4.28528 26.67 1473.92 1020.745 13.05 13.04 8.402 2.87291 4.30048 26.77 1474.06 1020.828 13.35 13.34 8.402 2.88089 4.31242 26.85 1474.16 1020.893 13.65 13.64 8.404 2.88661 4.32077 26.91 1474.24 1020.940 13.95 13.94 8.407 2.89390 4.33129 26.98 1474.35 1020.997 14.25 14.24 8.410 2.90319 4.34482 27.08 1474.48 1021.071 14.55 14.54 8.414 2.90533 4.34752 27.10 1474.52 1021.087 14.85 14.84 8.416 2.90602 4.34823 27.10 1474.54 1021.092 15.15 15.14 8.417 2.90756 4.35039 27.12 1474.57 1021.105 15.45 15.44 8.417 2.91065 4.35499 27.15 1474.62 1021.131 15.75 15.74 8.418 2.91221 4.35723 27.16 1474.64 1021.144 16.05 16.04 8.418 2.91309 4.35852 27.17 1474.66 1021.152 16.35 16.34 8.418 2.91521 4.36174 27.19 1474.69 1021.171 16.65 16.64 8.416 2.91650 4.36387 27.21 1474.71 1021.184 16.95 16.94 8.416 2.91787 4.36604 27.22 1474.73 1021.197 17.25 17.24 8.417 2.91874 4.36720 27.23 1474.75 1021.204 17.55 17.53 8.417 2.91960 4.36838 27.24 1474.76 1021.212 17.85 17.83 8.417 2.91994 4.36889 27.24 1474.77 1021.216 18.15 18.13 8.419 2.92066 4.36983 27.25 1474.79 1021.222 18.45 18.43 8.417 2.92076 4.37019 27.25 1474.79 1021.225 18.75 18.73 8.416 2.92105 4.37068 27.25 1474.80 1021.229 19.05 19.03 8.418 2.92143 4.37110 27.26 1474.81 1021.233 19.35 19.33 8.419 2.92146 4.37090 27.26 1474.82 1021.233 19.65 19.63 8.420 2.92192 4.37151 27.26 1474.83 1021.238 19.95 19.93 8.421 2.92215 4.37177 27.26 1474.84 1021.240 20.25 20.23 8.421 2.92289 4.37288 27.27 1474.86 1021.247 20.55 20.53 8.422 2.92314 4.37314 27.27 1474.87 1021.250 20.85 20.83 8.421 2.92349 4.37368 27.28 1474.88 1021.254 21.15 21.13 8.422 2.92412 4.37448 27.28 1474.89 1021.260 21.45 21.43 8.423 2.92485 4.37545 27.29 1474.91 1021.266 21.75 21.73 8.423 2.92542 4.37631 27.29 1474.92 1021.272 22.05 22.03 8.424 2.92656 4.37792 27.30 1474.94 1021.282 22.35 22.33 8.426 2.92815 4.38001 27.32 1474.97 1021.295 22.65 22.63 8.427 2.92929 4.38157 27.33 1475.00 1021.304 22.95 22.92 8.429 2.93014 4.38261 27.34 1475.02 1021.311 23.25 23.22 8.431 2.93010 4.38233 27.34 1475.03 1021.311 23.55 23.52 8.433 2.93176 4.38458 27.35 1475.06 1021.324 23.85 23.82 8.434 2.93173 4.38441 27.35 1475.06 1021.325 24.15 24.12 8.434 2.93280 4.38593 27.36 1475.08 1021.334 24.45 24.42 8.435 2.93387 4.38748 27.37 1475.10 1021.344 24.75 24.72 8.434 2.93474 4.38885 27.38 1475.12 1021.352 25.05 25.02 8.434 2.93528 4.38962 27.39 1475.13 1021.358 25.35 25.32 8.434 2.93582 4.39043 27.39 1475.14 1021.363 25.65 25.62 8.434 2.93582 4.39048 27.39 1475.14 1021.365 25.95 25.92 8.434 2.93664 4.39168 27.40 1475.16 1021.373 26.25 26.22 8.435 2.93736 4.39263 27.41 1475.18 1021.379 26.55 26.52 8.434 2.93882 4.39491 27.42 1475.20 1021.393 26.85 26.82 8.434 2.94136 4.39871 27.45 1475.23 1021.414 27.15 27.12 8.434 2.94296 4.40115 27.46 1475.26 1021.429 27.45 27.42 8.435 2.94383 4.40237 27.47 1475.28 1021.437 27.75 27.72 8.435 2.94371 4.40207 27.47 1475.28 1021.436 28.05 28.01 8.435 2.94443 4.40320 27.48 1475.29 1021.444 28.35 28.31 8.436 2.94443 4.40302 27.48 1475.30 1021.444 28.65 28.61 8.437 2.94534 4.40435 27.49 1475.32 1021.452 28.95 28.91 8.437 2.94581 4.40501 27.49 1475.33 1021.457 29.25 29.21 8.437 2.94585 4.40504 27.49 1475.34 1021.459 29.55 29.51 8.438 2.94707 4.40678 27.50 1475.36 1021.469 29.85 29.81 8.439 2.94702 4.40660 27.50 1475.37 1021.470 30.15 30.11 8.439 2.94782 4.40772 27.51 1475.38 1021.477 30.45 30.41 8.440 2.94796 4.40781 27.51 1475.39 1021.479 30.75 30.71 8.441 2.94809 4.40794 27.51 1475.40 1021.481 31.05 31.01 8.441 2.94804 4.40788 27.51 1475.40 1021.482 31.35 31.31 8.441 2.94767 4.40727 27.50 1475.41 1021.480 31.65 31.61 8.441 2.94817 4.40798 27.51 1475.42 1021.485 31.95 31.91 8.440 2.94833 4.40843 27.51 1475.42 1021.488 32.25 32.21 8.442 2.94820 4.40796 27.51 1475.43 1021.487 32.55 32.51 8.442 2.94857 4.40846 27.51 1475.44 1021.491 32.85 32.81 8.441 2.94851 4.40851 27.51 1475.44 1021.493 33.15 33.10 8.441 2.94901 4.40932 27.52 1475.45 1021.498 33.45 33.40 8.442 2.94907 4.40923 27.52 1475.46 1021.499 33.75 33.70 8.441 2.94852 4.40851 27.51 1475.45 1021.497 34.05 34.00 8.443 2.94904 4.40912 27.52 1475.47 1021.501 34.35 34.30 8.442 2.94871 4.40874 27.51 1475.47 1021.500 34.65 34.60 8.443 2.94862 4.40846 27.51 1475.47 1021.500 34.95 34.90 8.444 2.94943 4.40954 27.52 1475.49 1021.507 35.25 35.20 8.444 2.94858 4.40820 27.51 1475.49 1021.501 35.55 35.50 8.443 2.94835 4.40806 27.51 1475.49 1021.502 35.85 35.80 8.442 2.94824 4.40795 27.51 1475.49 1021.503 36.15 36.10 8.443 2.94893 4.40892 27.51 1475.50 1021.509 36.30 36.25 8.442 2.94898 4.40908 27.52 1475.50 1021.510