*2026/01/16 09:57:55.89 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/10/15 22:42:01.000 END TIME : UTC 2024/10/15 22:42:19.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 91 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 27.27 2 Depth metres 0.15 27.18 3 Temperature 'deg C (ITS90)' 12.594 13.322 4 Conductivity S/m 3.54227 3.60827 5 Conductance:Specific S/m 4.62226 4.79901 6 Salinity PSS-78 29.52 30.7 7 Speed:Sound m/s 1494.18 1494.83 8 Density kg/m^3 1022.095 1023.268 $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 : 270 LATITUDE : 49 12.82710 N ! (deg min) LONGITUDE : 125 56.03730 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20241015_224201 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:07 91 91 MERGEHDR 1.3 2026/01/16 09:54:08 91 91 HDREDIT2 3.2 2026/01/16 09:55:13 ? ? REMOVECH 8.2 2026/01/16 09:56:23 91 91 CALIB 12.1 2026/01/16 09:56:56 91 91 CLEAN 5.3 2026/01/16 09:57:55 91 91 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:13 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 09:56:23 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:56 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 13.322 3.54331 4.62305 29.53 1494.81 1022.098 0.45 0.45 13.318 3.54227 4.62226 29.52 1494.79 1022.095 0.75 0.75 13.308 3.54243 4.62363 29.53 1494.77 1022.105 1.05 1.05 13.296 3.54412 4.62733 29.56 1494.76 1022.129 1.35 1.35 13.284 3.54591 4.63102 29.58 1494.76 1022.151 1.65 1.65 13.270 3.54973 4.63777 29.63 1494.77 1022.192 1.95 1.94 13.251 3.55474 4.64666 29.69 1494.78 1022.244 2.25 2.24 13.242 3.55736 4.65112 29.72 1494.80 1022.271 2.55 2.54 13.241 3.55713 4.65099 29.72 1494.80 1022.272 2.85 2.84 13.238 3.55683 4.65091 29.72 1494.79 1022.273 3.15 3.14 13.234 3.55695 4.65153 29.72 1494.79 1022.278 3.45 3.44 13.232 3.55832 4.65356 29.74 1494.80 1022.291 3.75 3.74 13.230 3.55831 4.65382 29.74 1494.80 1022.294 4.05 4.04 13.228 3.55788 4.65349 29.74 1494.80 1022.293 4.35 4.34 13.229 3.55751 4.65291 29.73 1494.80 1022.291 4.65 4.64 13.228 3.55807 4.65373 29.74 1494.81 1022.297 4.95 4.94 13.228 3.55727 4.65275 29.73 1494.80 1022.293 5.25 5.24 13.226 3.55762 4.65336 29.73 1494.81 1022.298 5.55 5.53 13.226 3.55769 4.65356 29.74 1494.81 1022.300 5.85 5.83 13.227 3.55836 4.65428 29.74 1494.83 1022.305 6.15 6.13 13.228 3.55811 4.65384 29.74 1494.83 1022.304 6.45 6.43 13.219 3.55889 4.65597 29.75 1494.82 1022.318 6.75 6.73 13.207 3.56129 4.66048 29.78 1494.83 1022.346 7.05 7.03 13.191 3.56351 4.66542 29.82 1494.82 1022.376 7.35 7.33 13.175 3.56332 4.66713 29.83 1494.78 1022.389 7.65 7.63 13.165 3.56590 4.67175 29.86 1494.79 1022.417 7.95 7.93 13.156 3.56595 4.67280 29.86 1494.77 1022.425 8.25 8.23 13.152 3.56691 4.67458 29.88 1494.78 1022.436 8.55 8.53 13.147 3.56724 4.67559 29.88 1494.78 1022.444 8.85 8.82 13.144 3.56730 4.67611 29.89 1494.77 1022.448 9.15 9.12 13.141 3.56783 4.67722 29.89 1494.78 1022.456 9.45 9.42 13.138 3.56838 4.67825 29.90 1494.78 1022.463 9.75 9.72 13.132 3.56856 4.67922 29.91 1494.77 1022.471 10.05 10.02 13.126 3.56997 4.68183 29.93 1494.78 1022.487 10.35 10.32 13.116 3.57125 4.68466 29.94 1494.77 1022.505 10.65 10.62 13.109 3.57098 4.68519 29.95 1494.76 1022.510 10.95 10.92 13.097 3.57068 4.68628 29.95 1494.73 1022.519 11.25 11.22 13.088 3.57265 4.69000 29.98 1494.73 1022.542 11.55 11.52 13.086 3.57280 4.69049 29.98 1494.73 1022.546 11.85 11.82 13.083 3.57270 4.69061 29.98 1494.73 1022.548 12.15 12.11 13.085 3.57232 4.68998 29.98 1494.74 1022.546 12.45 12.41 13.079 3.57355 4.69225 29.99 1494.74 1022.560 12.75 12.71 13.069 3.57371 4.69371 30.00 1494.72 1022.571 13.05 13.01 13.058 3.57406 4.69551 30.02 1494.71 1022.583 13.35 13.31 13.057 3.57387 4.69543 30.02 1494.71 1022.584 13.65 13.61 13.054 3.57389 4.69586 30.02 1494.70 1022.588 13.95 13.91 13.046 3.57418 4.69719 30.03 1494.69 1022.598 14.25 14.21 13.042 3.57563 4.69963 30.04 1494.70 1022.613 14.55 14.51 13.028 3.57622 4.70204 30.06 1494.68 1022.629 14.85 14.81 13.020 3.57727 4.70444 30.08 1494.68 1022.645 15.15 15.11 13.017 3.57656 4.70384 30.07 1494.67 1022.643 15.45 15.40 13.011 3.57653 4.70461 30.08 1494.66 1022.649 15.75 15.70 13.006 3.57683 4.70559 30.08 1494.65 1022.657 16.05 16.00 13.000 3.57638 4.70574 30.08 1494.64 1022.659 16.35 16.30 12.996 3.57732 4.70745 30.09 1494.64 1022.670 16.65 16.60 12.993 3.57731 4.70787 30.10 1494.64 1022.674 16.95 16.90 12.991 3.57794 4.70894 30.10 1494.65 1022.682 17.25 17.20 12.988 3.57842 4.70994 30.11 1494.65 1022.689 17.55 17.50 12.985 3.57844 4.71039 30.11 1494.65 1022.693 17.85 17.80 12.983 3.57783 4.70984 30.11 1494.64 1022.692 18.15 18.10 12.983 3.57851 4.71071 30.12 1494.65 1022.698 18.45 18.39 12.984 3.57900 4.71120 30.12 1494.67 1022.701 18.75 18.69 12.981 3.57791 4.71018 30.11 1494.65 1022.698 19.05 18.99 12.983 3.57776 4.70974 30.11 1494.66 1022.696 19.35 19.29 12.986 3.57843 4.71023 30.11 1494.68 1022.700 19.65 19.59 12.981 3.57853 4.71096 30.12 1494.67 1022.706 19.95 19.89 12.977 3.57926 4.71234 30.13 1494.68 1022.715 20.25 20.19 12.974 3.57928 4.71274 30.13 1494.67 1022.719 20.55 20.49 12.968 3.57919 4.71345 30.13 1494.66 1022.725 20.85 20.79 12.957 3.57959 4.71532 30.14 1494.65 1022.738 21.15 21.09 12.947 3.57984 4.71693 30.16 1494.63 1022.749 21.45 21.38 12.933 3.58085 4.71996 30.18 1494.61 1022.768 21.75 21.68 12.913 3.58182 4.72369 30.20 1494.58 1022.793 22.05 21.98 12.908 3.58278 4.72558 30.21 1494.58 1022.805 22.35 22.28 12.905 3.58334 4.72671 30.22 1494.58 1022.813 22.65 22.58 12.902 3.58323 4.72690 30.22 1494.58 1022.815 22.95 22.88 12.900 3.58393 4.72812 30.23 1494.59 1022.824 23.25 23.18 12.897 3.58336 4.72774 30.23 1494.58 1022.823 23.55 23.48 12.896 3.58352 4.72816 30.23 1494.58 1022.827 23.85 23.78 12.896 3.58337 4.72795 30.23 1494.59 1022.827 24.15 24.08 12.896 3.58390 4.72864 30.23 1494.60 1022.832 24.45 24.37 12.895 3.58396 4.72880 30.23 1494.60 1022.834 24.75 24.67 12.894 3.58427 4.72927 30.24 1494.61 1022.838 25.05 24.97 12.895 3.58468 4.72977 30.24 1494.62 1022.842 25.35 25.27 12.896 3.58357 4.72813 30.23 1494.61 1022.834 25.65 25.57 12.897 3.58440 4.72909 30.24 1494.63 1022.841 25.95 25.87 12.895 3.58535 4.73066 30.25 1494.64 1022.851 26.25 26.17 12.879 3.58869 4.73706 30.29 1494.64 1022.889 26.55 26.47 12.807 3.59415 4.75324 30.40 1494.53 1022.988 26.85 26.77 12.631 3.60419 4.78888 30.64 1494.22 1023.206 27.27 27.18 12.594 3.60827 4.79901 30.70 1494.18 1023.268