*2026/01/16 09:57:56.71 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/10/17 20:11:43.000 END TIME : UTC 2024/10/17 20:12:02.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 100 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 29.73 2 Depth metres 0.15 29.6 3 Temperature 'deg C (ITS90)' 10.507 12.708 4 Conductivity S/m 3.35598 3.66625 5 Conductance:Specific S/m 4.47779 5.00622 6 Salinity PSS-78 28.43 31.95 7 Speed:Sound m/s 1488.43 1493.89 8 Density kg/m^3 1021.41 1024.622 $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 : 289 LATITUDE : 48 57.93370 N ! (deg min) LONGITUDE : 125 19.34230 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20241017_201143 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:08 100 100 MERGEHDR 1.3 2026/01/16 09:54:10 100 100 HDREDIT2 3.2 2026/01/16 09:55:14 ? ? REMOVECH 8.2 2026/01/16 09:56:24 100 100 CALIB 12.1 2026/01/16 09:56:58 100 100 CLEAN 5.3 2026/01/16 09:57:56 100 100 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:14 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 09:56:24 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:58 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 12.474 3.35598 4.47779 28.43 1490.63 1021.410 0.45 0.45 12.442 3.38916 4.52588 28.77 1490.92 1021.677 0.75 0.75 12.429 3.40443 4.54786 28.92 1491.07 1021.800 1.05 1.05 12.450 3.40989 4.55262 28.96 1491.18 1021.825 1.35 1.35 12.464 3.41706 4.56050 29.01 1491.30 1021.867 1.65 1.65 12.469 3.42482 4.57025 29.08 1491.41 1021.921 1.95 1.95 12.482 3.42720 4.57174 29.09 1491.47 1021.929 2.25 2.24 12.547 3.44461 4.58703 29.21 1491.84 1022.006 2.55 2.54 12.623 3.50199 4.65407 29.69 1492.67 1022.365 2.85 2.84 12.617 3.52399 4.68403 29.90 1492.90 1022.531 3.15 3.14 12.657 3.55728 4.72332 30.18 1493.38 1022.743 3.45 3.44 12.708 3.57370 4.73869 30.30 1493.69 1022.823 3.75 3.74 12.707 3.59153 4.76237 30.46 1493.89 1022.954 4.05 4.04 12.667 3.59425 4.77107 30.52 1493.83 1023.008 4.35 4.34 12.638 3.59671 4.77797 30.57 1493.79 1023.051 4.65 4.64 12.603 3.59673 4.78247 30.60 1493.71 1023.081 4.95 4.94 12.540 3.59723 4.79124 30.65 1493.57 1023.138 5.25 5.23 12.459 3.59622 4.80016 30.71 1493.37 1023.198 5.55 5.53 12.372 3.59795 4.81364 30.80 1493.18 1023.283 5.85 5.83 12.328 3.59890 4.82061 30.84 1493.08 1023.328 6.15 6.13 12.277 3.60910 4.84089 30.98 1493.08 1023.446 6.45 6.43 12.202 3.61635 4.86037 31.11 1492.98 1023.563 6.75 6.73 12.201 3.61979 4.86521 31.15 1493.02 1023.591 7.05 7.03 12.245 3.63050 4.87375 31.21 1493.26 1023.635 7.35 7.33 12.252 3.64682 4.89477 31.36 1493.47 1023.751 7.65 7.62 12.257 3.66158 4.91396 31.50 1493.65 1023.858 7.95 7.92 12.291 3.66483 4.91381 31.50 1493.78 1023.855 8.25 8.22 12.301 3.66625 4.91447 31.51 1493.82 1023.858 8.55 8.52 12.286 3.66420 4.91364 31.50 1493.77 1023.857 8.85 8.82 12.263 3.66330 4.91541 31.51 1493.71 1023.870 9.15 9.12 12.236 3.66285 4.91845 31.53 1493.64 1023.891 9.45 9.42 12.199 3.66202 4.92222 31.55 1493.54 1023.917 9.75 9.72 12.172 3.66155 4.92512 31.57 1493.48 1023.938 10.05 10.01 12.140 3.65838 4.92517 31.57 1493.37 1023.943 10.35 10.31 12.113 3.65861 4.92905 31.59 1493.31 1023.968 10.65 10.61 12.079 3.65758 4.93220 31.61 1493.22 1023.991 10.95 10.91 12.013 3.65452 4.93685 31.64 1493.03 1024.025 11.25 11.21 11.871 3.64166 4.93834 31.63 1492.54 1024.049 11.55 11.51 11.680 3.62795 4.94547 31.66 1491.92 1024.109 11.85 11.81 11.594 3.61178 4.93494 31.58 1491.53 1024.060 12.15 12.10 11.533 3.60380 4.93220 31.55 1491.29 1024.052 12.45 12.40 11.383 3.59478 4.94020 31.59 1490.82 1024.112 12.75 12.70 11.247 3.58821 4.94962 31.64 1490.41 1024.178 13.05 13.00 11.199 3.58733 4.95502 31.68 1490.28 1024.213 13.35 13.30 11.158 3.58531 4.95781 31.69 1490.16 1024.233 13.65 13.60 11.123 3.58370 4.96046 31.71 1490.06 1024.252 13.95 13.90 11.098 3.58407 4.96432 31.73 1490.01 1024.277 14.25 14.20 11.075 3.58212 4.96484 31.73 1489.93 1024.283 14.55 14.49 11.051 3.58011 4.96530 31.73 1489.85 1024.289 14.85 14.79 11.036 3.58014 4.96750 31.75 1489.82 1024.304 15.15 15.09 11.019 3.57878 4.96784 31.75 1489.77 1024.308 15.45 15.39 11.008 3.57848 4.96895 31.75 1489.74 1024.317 15.75 15.69 10.998 3.57697 4.96828 31.75 1489.70 1024.315 16.05 15.99 10.989 3.57606 4.96831 31.75 1489.67 1024.317 16.35 16.29 10.975 3.57711 4.97166 31.77 1489.66 1024.338 16.65 16.58 10.962 3.57657 4.97273 31.77 1489.62 1024.347 16.95 16.88 10.949 3.57567 4.97330 31.78 1489.58 1024.352 17.25 17.18 10.941 3.57528 4.97380 31.78 1489.56 1024.357 17.55 17.48 10.934 3.57456 4.97380 31.78 1489.54 1024.359 17.85 17.78 10.925 3.57451 4.97497 31.78 1489.52 1024.367 18.15 18.08 10.915 3.57498 4.97701 31.80 1489.51 1024.380 18.45 18.37 10.904 3.57420 4.97747 31.80 1489.48 1024.385 18.75 18.67 10.893 3.57428 4.97910 31.81 1489.46 1024.396 19.05 18.97 10.887 3.57422 4.97977 31.81 1489.45 1024.402 19.35 19.27 10.880 3.57244 4.97837 31.80 1489.41 1024.396 19.65 19.57 10.862 3.57177 4.97994 31.81 1489.36 1024.407 19.95 19.87 10.838 3.57051 4.98151 31.82 1489.29 1024.419 20.25 20.17 10.820 3.56981 4.98294 31.83 1489.25 1024.430 20.55 20.46 10.803 3.56850 4.98353 31.83 1489.19 1024.436 20.85 20.76 10.787 3.56778 4.98479 31.84 1489.15 1024.445 21.15 21.06 10.776 3.56647 4.98443 31.83 1489.11 1024.445 21.45 21.36 10.762 3.56543 4.98497 31.83 1489.07 1024.451 21.75 21.66 10.742 3.56537 4.98767 31.85 1489.02 1024.469 22.05 21.96 10.728 3.56474 4.98879 31.86 1488.98 1024.477 22.35 22.26 10.708 3.56385 4.99027 31.87 1488.93 1024.488 22.65 22.55 10.693 3.56408 4.99263 31.88 1488.90 1024.504 22.95 22.85 10.686 3.56325 4.99251 31.88 1488.87 1024.505 23.25 23.15 10.676 3.56272 4.99314 31.88 1488.85 1024.510 23.55 23.45 10.671 3.56281 4.99396 31.89 1488.84 1024.516 23.85 23.75 10.668 3.56297 4.99470 31.89 1488.84 1024.522 24.15 24.05 10.665 3.56224 4.99406 31.89 1488.83 1024.520 24.45 24.35 10.660 3.56186 4.99423 31.89 1488.82 1024.523 24.75 24.64 10.656 3.56205 4.99501 31.89 1488.81 1024.528 25.05 24.94 10.651 3.56255 4.99645 31.90 1488.81 1024.538 25.35 25.24 10.643 3.56158 4.99623 31.90 1488.78 1024.539 25.65 25.54 10.632 3.56032 4.99590 31.90 1488.75 1024.539 25.95 25.84 10.619 3.56024 4.99767 31.91 1488.72 1024.551 26.25 26.14 10.612 3.56005 4.99838 31.91 1488.70 1024.557 26.55 26.43 10.608 3.56001 4.99894 31.91 1488.70 1024.562 26.85 26.73 10.608 3.55996 4.99876 31.91 1488.70 1024.562 27.15 27.03 10.606 3.55980 4.99890 31.91 1488.70 1024.564 27.45 27.33 10.602 3.55930 4.99870 31.91 1488.69 1024.564 27.75 27.63 10.592 3.55831 4.99876 31.91 1488.66 1024.567 28.05 27.93 10.587 3.55818 4.99927 31.91 1488.65 1024.571 28.35 28.23 10.567 3.55643 4.99955 31.91 1488.58 1024.575 28.65 28.52 10.546 3.55755 5.00418 31.94 1488.54 1024.604 28.95 28.82 10.536 3.55645 5.00403 31.94 1488.51 1024.605 29.25 29.12 10.517 3.55575 5.00569 31.95 1488.46 1024.617 29.55 29.42 10.512 3.55558 5.00622 31.95 1488.45 1024.622 29.73 29.60 10.507 3.55495 5.00604 31.95 1488.43 1024.622