*2026/01/16 09:57:53.71 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/08/14 19:55:55.000 END TIME : UTC 2024/08/14 19:56:11.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 85 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 25.5 2 Depth metres 0.15 25.41 3 Temperature 'deg C (ITS90)' 10.176 19.298 4 Conductivity S/m 3.15943 3.63245 5 Conductance:Specific S/m 3.56762 5.02694 6 Salinity PSS-78 22.41 32.06 7 Speed:Sound m/s 1487.29 1505.43 8 Density kg/m^3 1015.363 1024.742 $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 : 205 LATITUDE : 49 3.21890 N ! (deg min) LONGITUDE : 124 50.40750 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240814_195555 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:04 85 85 MERGEHDR 1.3 2026/01/16 09:54:00 85 85 HDREDIT2 3.2 2026/01/16 09:55:09 ? ? REMOVECH 8.2 2026/01/16 09:56:20 85 85 CALIB 12.1 2026/01/16 09:56:53 85 85 CLEAN 5.3 2026/01/16 09:57:53 85 85 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:09 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 09:56:20 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:53 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 19.298 3.16336 3.57056 22.43 1505.43 1015.373 0.45 0.45 19.279 3.15943 3.56762 22.41 1505.36 1015.363 0.75 0.75 19.274 3.16490 3.57423 22.45 1505.40 1015.400 1.05 1.05 19.256 3.16603 3.57691 22.47 1505.37 1015.419 1.35 1.36 19.226 3.16964 3.58347 22.52 1505.34 1015.462 1.65 1.66 19.207 3.17209 3.58776 22.55 1505.32 1015.490 1.95 1.96 19.180 3.17478 3.59301 22.58 1505.29 1015.525 2.25 2.26 19.130 3.17588 3.59828 22.62 1505.19 1015.565 2.55 2.56 19.075 3.17661 3.60361 22.65 1505.07 1015.606 2.85 2.86 19.026 3.17782 3.60904 22.69 1504.97 1015.646 3.15 3.16 18.868 3.18897 3.63469 22.86 1504.70 1015.817 3.45 3.46 18.618 3.23661 3.71016 23.38 1504.55 1016.271 3.75 3.76 18.350 3.30496 3.81198 24.08 1504.54 1016.868 4.05 4.06 17.773 3.36751 3.93647 24.93 1503.77 1017.651 4.35 4.36 17.136 3.40325 4.03843 25.62 1502.61 1018.324 4.65 4.67 16.871 3.45825 4.12964 26.25 1502.52 1018.866 4.95 4.96 15.457 3.59959 4.44866 28.44 1500.59 1020.846 5.25 5.26 14.791 3.61523 4.54283 29.06 1499.18 1021.469 5.55 5.56 13.881 3.63245 4.67128 29.91 1497.21 1022.309 5.85 5.86 13.391 3.62752 4.72439 30.25 1495.98 1022.669 6.15 6.16 12.647 3.61248 4.79784 30.71 1494.02 1023.167 6.45 6.46 12.111 3.60113 4.85178 31.04 1492.59 1023.526 6.75 6.76 11.849 3.59202 4.87394 31.17 1491.84 1023.677 7.05 7.06 11.527 3.58409 4.90612 31.37 1490.96 1023.888 7.35 7.36 11.391 3.58225 4.92191 31.46 1490.61 1023.989 7.65 7.66 11.317 3.58650 4.93781 31.57 1490.48 1024.085 7.95 7.95 11.287 3.58842 4.94452 31.61 1490.43 1024.126 8.25 8.25 11.278 3.59011 4.94809 31.64 1490.43 1024.147 8.55 8.55 11.270 3.59228 4.95216 31.67 1490.44 1024.172 8.85 8.85 11.263 3.59200 4.95277 31.67 1490.43 1024.177 9.15 9.15 11.263 3.59146 4.95200 31.66 1490.43 1024.174 9.45 9.45 11.247 3.59196 4.95484 31.68 1490.40 1024.193 9.75 9.75 11.228 3.59297 4.95887 31.71 1490.37 1024.218 10.05 10.04 11.216 3.59324 4.96086 31.72 1490.35 1024.231 10.35 10.34 11.187 3.59425 4.96623 31.76 1490.29 1024.265 10.65 10.64 11.168 3.59413 4.96861 31.77 1490.25 1024.281 10.95 10.94 11.151 3.59356 4.97018 31.78 1490.20 1024.292 11.25 11.24 11.130 3.59232 4.97137 31.79 1490.14 1024.302 11.55 11.54 11.101 3.59118 4.97375 31.80 1490.06 1024.319 11.85 11.84 11.062 3.59041 4.97810 31.83 1489.96 1024.348 12.15 12.13 11.029 3.58879 4.98039 31.84 1489.86 1024.364 12.45 12.43 11.008 3.58634 4.97988 31.83 1489.79 1024.364 12.75 12.73 10.978 3.58469 4.98171 31.84 1489.70 1024.378 13.05 13.03 10.956 3.58485 4.98507 31.86 1489.65 1024.400 13.35 13.33 10.936 3.58389 4.98648 31.87 1489.59 1024.411 13.65 13.63 10.912 3.58364 4.98948 31.89 1489.53 1024.431 13.95 13.93 10.889 3.58170 4.98997 31.89 1489.46 1024.437 14.25 14.22 10.864 3.58031 4.99150 31.90 1489.38 1024.448 14.55 14.52 10.852 3.57524 4.98606 31.86 1489.30 1024.420 14.85 14.82 10.836 3.57740 4.99141 31.89 1489.29 1024.453 15.15 15.12 10.800 3.57412 4.99176 31.89 1489.17 1024.459 15.45 15.42 10.773 3.57317 4.99420 31.90 1489.09 1024.476 15.75 15.72 10.754 3.57153 4.99455 31.90 1489.03 1024.480 16.05 16.01 10.729 3.57047 4.99665 31.92 1488.96 1024.495 16.35 16.31 10.712 3.57027 4.99870 31.93 1488.92 1024.509 16.65 16.61 10.696 3.56972 5.00021 31.94 1488.88 1024.520 16.95 16.91 10.684 3.56858 5.00026 31.94 1488.84 1024.522 17.25 17.21 10.670 3.56802 5.00145 31.94 1488.80 1024.531 17.55 17.51 10.663 3.56705 5.00099 31.94 1488.78 1024.531 17.85 17.81 10.632 3.56495 5.00251 31.95 1488.68 1024.543 18.15 18.10 10.592 3.56149 5.00328 31.95 1488.54 1024.551 18.45 18.40 10.559 3.56029 5.00613 31.96 1488.45 1024.571 18.75 18.70 10.544 3.55904 5.00646 31.96 1488.40 1024.575 19.05 19.00 10.513 3.55667 5.00755 31.97 1488.30 1024.585 19.35 19.30 10.487 3.55544 5.00948 31.98 1488.22 1024.599 19.65 19.60 10.468 3.55430 5.01058 31.98 1488.17 1024.607 19.95 19.90 10.446 3.55341 5.01245 31.99 1488.10 1024.620 20.25 20.19 10.411 3.55285 5.01665 32.02 1488.01 1024.647 20.55 20.49 10.378 3.54782 5.01411 32.00 1487.88 1024.637 20.85 20.79 10.348 3.54459 5.01385 31.99 1487.77 1024.639 21.15 21.09 10.325 3.54490 5.01758 32.01 1487.72 1024.663 21.45 21.39 10.301 3.54429 5.02006 32.03 1487.65 1024.679 21.75 21.69 10.271 3.54086 5.01947 32.02 1487.54 1024.679 22.05 21.98 10.237 3.53894 5.02159 32.03 1487.44 1024.695 22.35 22.28 10.222 3.53826 5.02285 32.04 1487.39 1024.704 22.65 22.58 10.219 3.53769 5.02240 32.03 1487.38 1024.703 22.95 22.88 10.217 3.53730 5.02216 32.03 1487.38 1024.703 23.25 23.18 10.206 3.53642 5.02253 32.03 1487.34 1024.707 23.55 23.48 10.198 3.53546 5.02223 32.03 1487.32 1024.707 23.85 23.78 10.191 3.53525 5.02298 32.03 1487.30 1024.713 24.15 24.07 10.184 3.53544 5.02428 32.04 1487.29 1024.722 24.45 24.37 10.186 3.53519 5.02363 32.04 1487.30 1024.720 24.75 24.67 10.188 3.53573 5.02409 32.04 1487.31 1024.723 25.05 24.97 10.176 3.53587 5.02601 32.05 1487.29 1024.736 25.50 25.41 10.182 3.53717 5.02694 32.06 1487.33 1024.742