*2026/01/16 09:57:57.25 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/11/26 17:44:06.000 END TIME : UTC 2024/11/26 17:44:23.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 90 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 26.74 2 Depth metres 0.15 26.66 3 Temperature 'deg C (ITS90)' 8.974 10.779 4 Conductivity S/m 2.74846 3.46509 5 Conductance:Specific S/m 4.04443 4.85139 6 Salinity PSS-78 25.09 30.88 7 Speed:Sound m/s 1473.99 1487.85 8 Density kg/m^3 1019.379 1023.741 $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 : 308 LATITUDE : 48 54.46170 N ! (deg min) LONGITUDE : 125 20.42500 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20241126_174406 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:09 90 90 MERGEHDR 1.3 2026/01/16 09:54:12 90 90 HDREDIT2 3.2 2026/01/16 09:55:15 ? ? REMOVECH 8.2 2026/01/16 09:56:25 90 90 CALIB 12.1 2026/01/16 09:56:59 90 90 CLEAN 5.3 2026/01/16 09:57:57 90 90 $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 9.080 2.77094 4.06537 25.25 1474.55 1019.483 0.45 0.45 8.974 2.75631 4.05650 25.17 1474.07 1019.442 0.75 0.75 8.978 2.74846 4.04443 25.09 1473.99 1019.379 1.05 1.05 9.030 2.78388 4.09029 25.41 1474.58 1019.622 1.35 1.35 9.101 2.80395 4.11124 25.56 1475.04 1019.731 1.65 1.65 9.172 2.82134 4.12815 25.69 1475.46 1019.819 1.95 1.95 9.223 2.85911 4.17722 26.03 1476.07 1020.080 2.25 2.25 9.321 2.88107 4.19730 26.18 1476.63 1020.183 2.55 2.55 9.442 2.89654 4.20497 26.24 1477.17 1020.219 2.85 2.85 9.500 2.98125 4.32064 27.05 1478.37 1020.838 3.15 3.15 9.557 3.02994 4.38392 27.49 1479.13 1021.177 3.45 3.45 9.648 3.06469 4.42264 27.77 1479.80 1021.382 3.75 3.75 9.737 3.10822 4.47397 28.13 1480.58 1021.655 4.05 4.05 9.860 3.14235 4.50711 28.38 1481.34 1021.828 4.35 4.35 9.958 3.18600 4.55694 28.74 1482.14 1022.093 4.65 4.64 10.025 3.20286 4.57231 28.85 1482.52 1022.173 4.95 4.94 10.084 3.20702 4.57053 28.85 1482.74 1022.161 5.25 5.24 10.147 3.22032 4.58127 28.93 1483.07 1022.216 5.55 5.54 10.185 3.23127 4.59184 29.01 1483.31 1022.272 5.85 5.84 10.212 3.25313 4.61928 29.20 1483.65 1022.421 6.15 6.14 10.250 3.26436 4.63028 29.28 1483.89 1022.479 6.45 6.44 10.293 3.27668 4.64217 29.37 1484.16 1022.542 6.75 6.74 10.321 3.28271 4.64694 29.41 1484.31 1022.568 7.05 7.04 10.342 3.29725 4.66474 29.53 1484.54 1022.664 7.35 7.34 10.374 3.30173 4.66689 29.55 1484.69 1022.675 7.65 7.64 10.399 3.30670 4.67065 29.58 1484.82 1022.695 7.95 7.94 10.430 3.31241 4.67452 29.61 1484.97 1022.715 8.25 8.23 10.457 3.32422 4.68768 29.71 1485.19 1022.786 8.55 8.53 10.469 3.32985 4.69396 29.75 1485.29 1022.821 8.85 8.83 10.479 3.33774 4.70376 29.82 1485.42 1022.875 9.15 9.13 10.502 3.34484 4.71071 29.87 1485.57 1022.912 9.45 9.43 10.523 3.34994 4.71516 29.91 1485.69 1022.936 9.75 9.73 10.544 3.35408 4.71818 29.93 1485.80 1022.952 10.05 10.03 10.571 3.36006 4.72302 29.97 1485.94 1022.978 10.35 10.33 10.581 3.36611 4.73025 30.02 1486.04 1023.018 10.65 10.63 10.601 3.37081 4.73420 30.05 1486.16 1023.039 10.95 10.92 10.620 3.37254 4.73404 30.05 1486.23 1023.038 11.25 11.22 10.625 3.37868 4.74197 30.11 1486.32 1023.083 11.55 11.52 10.638 3.37951 4.74139 30.10 1486.37 1023.080 11.85 11.82 10.649 3.38443 4.74693 30.14 1486.46 1023.110 12.15 12.12 10.662 3.39461 4.75944 30.23 1486.62 1023.179 12.45 12.42 10.678 3.39843 4.76269 30.26 1486.71 1023.197 12.75 12.72 10.694 3.40127 4.76450 30.27 1486.79 1023.207 13.05 13.02 10.706 3.40767 4.77179 30.32 1486.91 1023.247 13.35 13.32 10.720 3.41071 4.77422 30.34 1486.98 1023.260 13.65 13.61 10.728 3.41790 4.78320 30.41 1487.09 1023.310 13.95 13.91 10.741 3.42143 4.78648 30.43 1487.17 1023.328 14.25 14.21 10.752 3.42349 4.78783 30.44 1487.23 1023.336 14.55 14.51 10.758 3.42532 4.78956 30.45 1487.27 1023.347 14.85 14.81 10.765 3.42795 4.79234 30.48 1487.33 1023.362 15.15 15.11 10.769 3.42844 4.79245 30.48 1487.35 1023.364 15.45 15.41 10.773 3.42815 4.79148 30.47 1487.36 1023.360 15.75 15.71 10.775 3.42939 4.79298 30.48 1487.39 1023.369 16.05 16.01 10.775 3.42951 4.79320 30.48 1487.39 1023.371 16.35 16.30 10.778 3.43009 4.79358 30.48 1487.41 1023.375 16.65 16.60 10.778 3.43082 4.79453 30.49 1487.43 1023.381 16.95 16.90 10.779 3.43114 4.79488 30.49 1487.44 1023.384 17.25 17.20 10.778 3.43192 4.79612 30.50 1487.45 1023.392 17.55 17.50 10.778 3.43304 4.79767 30.51 1487.47 1023.402 17.85 17.80 10.779 3.43383 4.79869 30.52 1487.48 1023.409 18.15 18.10 10.776 3.43454 4.80005 30.53 1487.49 1023.418 18.45 18.40 10.776 3.43526 4.80113 30.54 1487.50 1023.425 18.75 18.70 10.776 3.43569 4.80163 30.54 1487.51 1023.429 19.05 18.99 10.775 3.43601 4.80231 30.54 1487.52 1023.434 19.35 19.29 10.770 3.43810 4.80582 30.57 1487.53 1023.455 19.65 19.59 10.772 3.44045 4.80890 30.59 1487.57 1023.473 19.95 19.89 10.771 3.44085 4.80954 30.60 1487.58 1023.478 20.25 20.19 10.766 3.44340 4.81381 30.62 1487.60 1023.503 20.55 20.49 10.766 3.44487 4.81588 30.64 1487.62 1023.516 20.85 20.79 10.765 3.44594 4.81741 30.65 1487.64 1023.525 21.15 21.09 10.763 3.44678 4.81894 30.66 1487.65 1023.535 21.45 21.38 10.758 3.44709 4.82008 30.67 1487.64 1023.543 21.75 21.68 10.757 3.44795 4.82135 30.68 1487.66 1023.551 22.05 21.98 10.756 3.44917 4.82325 30.69 1487.67 1023.563 22.35 22.28 10.755 3.44995 4.82450 30.70 1487.68 1023.571 22.65 22.58 10.751 3.45078 4.82610 30.71 1487.69 1023.582 22.95 22.88 10.752 3.45064 4.82578 30.71 1487.69 1023.581 23.25 23.18 10.748 3.45172 4.82780 30.72 1487.70 1023.594 23.55 23.48 10.746 3.45216 4.82878 30.73 1487.71 1023.601 23.85 23.77 10.743 3.45458 4.83259 30.75 1487.73 1023.623 24.15 24.07 10.741 3.45562 4.83420 30.76 1487.75 1023.633 24.45 24.37 10.741 3.45723 4.83654 30.78 1487.77 1023.648 24.75 24.67 10.739 3.46012 4.84083 30.81 1487.80 1023.673 25.05 24.97 10.736 3.46193 4.84380 30.83 1487.82 1023.690 25.35 25.27 10.733 3.46358 4.84648 30.85 1487.84 1023.707 25.65 25.57 10.731 3.46431 4.84778 30.86 1487.85 1023.715 25.95 25.87 10.728 3.46509 4.84923 30.87 1487.85 1023.725 26.25 26.16 10.727 3.46417 4.84805 30.86 1487.85 1023.720 26.55 26.46 10.703 3.46423 4.85139 30.88 1487.79 1023.741 26.74 26.66 10.726 3.46344 4.84726 30.85 1487.84 1023.717