*2026/01/16 09:57:57.79 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/12/10 22:46:03.000 END TIME : UTC 2024/12/10 22:46:30.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 138 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 41.16 2 Depth metres 0.15 41 3 Temperature 'deg C (ITS90)' 8.357 11.726 4 Conductivity S/m 1.71879 3.60523 5 Conductance:Specific S/m 2.57632 4.9392 6 Salinity PSS-78 15.28 31.57 7 Speed:Sound m/s 1459.57 1491.98 8 Density kg/m^3 1011.797 1024.232 $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 : 331 LATITUDE : 49 42.91380 N ! (deg min) LONGITUDE : 126 37.94550 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20241210_224603 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:10 138 138 MERGEHDR 1.3 2026/01/16 09:54:15 138 138 HDREDIT2 3.2 2026/01/16 09:55:17 ? ? REMOVECH 8.2 2026/01/16 09:56:26 138 138 CALIB 12.1 2026/01/16 09:57:00 138 138 CLEAN 5.3 2026/01/16 09:57:57 138 138 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:17 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 09:56:26 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:57:00 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 8.357 1.71879 2.57632 15.28 1459.57 1011.797 0.45 0.45 8.865 1.88615 2.78482 16.67 1463.26 1012.824 0.75 0.75 9.127 2.29482 3.36215 20.50 1468.95 1015.778 1.05 1.06 9.311 2.50665 3.65279 22.47 1472.06 1017.287 1.35 1.36 9.581 2.74759 3.97272 24.66 1475.75 1018.964 1.65 1.66 9.764 2.98703 4.29620 26.91 1479.16 1020.684 1.95 1.96 9.794 3.07963 4.42556 27.81 1480.36 1021.382 2.25 2.25 9.870 3.07682 4.41185 27.72 1480.54 1021.304 2.55 2.55 9.994 3.12608 4.46665 28.11 1481.48 1021.593 2.85 2.85 10.065 3.15718 4.50191 28.37 1482.05 1021.781 3.15 3.15 10.107 3.19201 4.54613 28.68 1482.59 1022.019 3.45 3.45 10.148 3.20088 4.55344 28.73 1482.81 1022.057 3.75 3.75 10.184 3.21231 4.56500 28.82 1483.05 1022.118 4.05 4.05 10.216 3.22738 4.58226 28.94 1483.32 1022.211 4.35 4.35 10.256 3.23300 4.58509 28.97 1483.50 1022.225 4.65 4.65 10.285 3.24826 4.60289 29.09 1483.77 1022.321 4.95 4.95 10.313 3.27232 4.63337 29.31 1484.13 1022.487 5.25 5.25 10.337 3.27649 4.63602 29.33 1484.25 1022.500 5.55 5.55 10.360 3.27873 4.63620 29.34 1484.35 1022.501 5.85 5.84 10.373 3.29025 4.65073 29.44 1484.52 1022.580 6.15 6.14 10.381 3.29110 4.65098 29.44 1484.56 1022.583 6.45 6.44 10.389 3.30226 4.66567 29.55 1484.72 1022.663 6.75 6.74 10.409 3.30776 4.67080 29.58 1484.84 1022.691 7.05 7.04 10.437 3.31878 4.68260 29.67 1485.05 1022.755 7.35 7.34 10.457 3.33634 4.70472 29.83 1485.32 1022.875 7.65 7.64 10.473 3.34592 4.71621 29.91 1485.48 1022.938 7.95 7.94 10.489 3.34888 4.71823 29.93 1485.56 1022.949 8.25 8.24 10.508 3.34936 4.71642 29.91 1485.62 1022.939 8.55 8.54 10.529 3.35427 4.72042 29.94 1485.74 1022.961 8.85 8.83 10.544 3.36068 4.72753 30.00 1485.86 1023.000 9.15 9.13 10.574 3.37526 4.74399 30.12 1486.12 1023.089 9.45 9.43 10.603 3.38525 4.75416 30.19 1486.32 1023.143 9.75 9.73 10.619 3.39171 4.76116 30.24 1486.44 1023.182 10.05 10.03 10.643 3.39592 4.76385 30.26 1486.56 1023.196 10.35 10.33 10.667 3.39947 4.76553 30.28 1486.67 1023.204 10.65 10.63 10.690 3.40263 4.76698 30.29 1486.77 1023.212 10.95 10.93 10.713 3.40749 4.77066 30.32 1486.89 1023.231 11.25 11.23 10.739 3.41237 4.77402 30.34 1487.02 1023.249 11.55 11.52 10.763 3.41972 4.78102 30.40 1487.17 1023.287 11.85 11.82 10.778 3.42516 4.78664 30.44 1487.28 1023.317 12.15 12.12 10.803 3.42774 4.78701 30.44 1487.38 1023.319 12.45 12.42 10.823 3.42801 4.78461 30.43 1487.44 1023.305 12.75 12.72 10.838 3.42816 4.78286 30.42 1487.48 1023.296 13.05 13.02 10.858 3.42898 4.78130 30.41 1487.55 1023.287 13.35 13.32 10.873 3.43569 4.78869 30.46 1487.67 1023.327 13.65 13.62 10.900 3.43839 4.78881 30.47 1487.78 1023.327 13.95 13.91 10.923 3.43961 4.78747 30.46 1487.86 1023.319 14.25 14.21 10.940 3.44840 4.79741 30.53 1488.01 1023.373 14.55 14.51 10.978 3.45659 4.80372 30.58 1488.21 1023.406 14.85 14.81 11.017 3.46075 4.80434 30.59 1488.36 1023.407 15.15 15.11 11.043 3.46391 4.80526 30.60 1488.47 1023.411 15.45 15.41 11.073 3.47144 4.81173 30.65 1488.64 1023.445 15.75 15.71 11.106 3.47658 4.81444 30.67 1488.79 1023.458 16.05 16.01 11.144 3.48383 4.81941 30.71 1488.97 1023.484 16.35 16.31 11.173 3.48603 4.81854 30.70 1489.08 1023.477 16.65 16.60 11.192 3.49075 4.82259 30.74 1489.18 1023.499 16.95 16.90 11.211 3.49231 4.82221 30.73 1489.26 1023.497 17.25 17.20 11.227 3.49620 4.82540 30.76 1489.35 1023.514 17.55 17.50 11.248 3.50068 4.82884 30.79 1489.46 1023.532 17.85 17.80 11.260 3.50168 4.82860 30.78 1489.50 1023.531 18.15 18.10 11.262 3.50537 4.83340 30.82 1489.56 1023.559 18.45 18.40 11.272 3.50626 4.83326 30.82 1489.60 1023.558 18.75 18.70 11.287 3.50580 4.83062 30.80 1489.64 1023.544 19.05 18.99 11.295 3.50817 4.83281 30.82 1489.69 1023.556 19.35 19.29 11.294 3.50867 4.83364 30.82 1489.70 1023.562 19.65 19.59 11.295 3.51276 4.83924 30.86 1489.75 1023.594 19.95 19.89 11.305 3.51507 4.84097 30.88 1489.81 1023.604 20.25 20.19 11.301 3.51565 4.84235 30.89 1489.81 1023.613 20.55 20.49 11.309 3.51602 4.84181 30.88 1489.84 1023.611 20.85 20.79 11.324 3.51576 4.83951 30.87 1489.88 1023.598 21.15 21.09 11.331 3.51844 4.84214 30.89 1489.93 1023.613 21.45 21.38 11.339 3.52051 4.84399 30.90 1489.98 1023.624 21.75 21.68 11.358 3.52482 4.84736 30.93 1490.08 1023.642 22.05 21.98 11.395 3.52906 4.84821 30.94 1490.23 1023.644 22.35 22.28 11.424 3.53496 4.85253 30.97 1490.38 1023.667 22.65 22.58 11.457 3.53943 4.85423 30.99 1490.52 1023.674 22.95 22.88 11.488 3.54577 4.85886 31.02 1490.67 1023.698 23.25 23.18 11.514 3.54926 4.86015 31.03 1490.78 1023.704 23.55 23.48 11.535 3.55289 4.86230 31.05 1490.88 1023.715 23.85 23.77 11.556 3.55545 4.86297 31.06 1490.97 1023.718 24.15 24.07 11.584 3.55825 4.86318 31.06 1491.07 1023.717 24.45 24.37 11.601 3.56174 4.86560 31.08 1491.16 1023.730 24.75 24.67 11.613 3.56522 4.86879 31.10 1491.24 1023.748 25.05 24.97 11.625 3.56677 4.86935 31.11 1491.29 1023.751 25.35 25.27 11.635 3.56905 4.87114 31.12 1491.35 1023.761 25.65 25.57 11.640 3.57019 4.87194 31.13 1491.38 1023.766 25.95 25.87 11.643 3.57242 4.87461 31.15 1491.42 1023.782 26.25 26.16 11.655 3.57227 4.87279 31.14 1491.45 1023.772 26.55 26.46 11.676 3.57726 4.87685 31.17 1491.56 1023.794 26.85 26.76 11.685 3.58014 4.87950 31.19 1491.62 1023.808 27.15 27.06 11.691 3.58319 4.88286 31.21 1491.68 1023.828 27.45 27.36 11.699 3.58388 4.88277 31.21 1491.71 1023.828 27.75 27.66 11.707 3.58560 4.88415 31.22 1491.75 1023.836 28.05 27.96 11.712 3.58725 4.88569 31.23 1491.79 1023.845 28.35 28.25 11.716 3.58870 4.88714 31.24 1491.82 1023.854 28.65 28.55 11.718 3.58965 4.88809 31.25 1491.84 1023.860 28.95 28.85 11.720 3.59097 4.88966 31.26 1491.87 1023.870 29.25 29.15 11.723 3.59155 4.89008 31.27 1491.89 1023.873 29.55 29.45 11.725 3.59226 4.89079 31.27 1491.90 1023.878 29.85 29.75 11.725 3.59357 4.89255 31.28 1491.92 1023.889 30.15 30.05 11.725 3.59449 4.89378 31.29 1491.94 1023.897 30.45 30.35 11.726 3.59588 4.89553 31.30 1491.96 1023.908 30.75 30.64 11.719 3.59783 4.89918 31.33 1491.97 1023.930 31.05 30.94 11.709 3.59771 4.90025 31.34 1491.95 1023.938 31.35 31.24 11.709 3.59652 4.89867 31.32 1491.94 1023.931 31.65 31.54 11.706 3.59563 4.89783 31.32 1491.93 1023.928 31.95 31.84 11.700 3.59817 4.90214 31.35 1491.95 1023.953 32.25 32.14 11.696 3.60008 4.90528 31.37 1491.97 1023.972 32.55 32.44 11.696 3.60067 4.90604 31.37 1491.98 1023.978 32.85 32.73 11.693 3.60106 4.90700 31.38 1491.98 1023.985 33.15 33.03 11.686 3.60139 4.90838 31.39 1491.97 1023.994 33.45 33.33 11.679 3.60123 4.90907 31.39 1491.96 1024.000 33.75 33.63 11.671 3.60043 4.90915 31.39 1491.93 1024.002 34.05 33.93 11.669 3.59972 4.90840 31.39 1491.92 1024.000 34.35 34.23 11.665 3.60004 4.90943 31.39 1491.92 1024.007 34.65 34.53 11.654 3.60211 4.91372 31.42 1491.92 1024.033 34.95 34.82 11.643 3.60313 4.91650 31.44 1491.92 1024.051 35.25 35.12 11.640 3.60246 4.91595 31.44 1491.91 1024.049 35.55 35.42 11.637 3.60191 4.91570 31.44 1491.90 1024.049 35.85 35.72 11.634 3.60270 4.91713 31.45 1491.90 1024.059 36.15 36.02 11.626 3.60437 4.92056 31.47 1491.91 1024.080 36.45 36.32 11.615 3.60523 4.92309 31.49 1491.90 1024.096 36.75 36.62 11.605 3.60509 4.92428 31.49 1491.87 1024.105 37.05 36.92 11.614 3.60489 4.92285 31.48 1491.90 1024.097 37.35 37.21 11.614 3.60408 4.92176 31.48 1491.89 1024.093 37.65 37.51 11.600 3.60169 4.92027 31.46 1491.84 1024.087 37.95 37.81 11.578 3.60180 4.92345 31.48 1491.79 1024.108 38.25 38.11 11.550 3.59420 4.91679 31.43 1491.64 1024.075 38.55 38.41 11.493 3.59425 4.92463 31.48 1491.50 1024.125 38.85 38.71 11.460 3.59959 4.93631 31.56 1491.49 1024.194 39.15 39.01 11.478 3.59938 4.93358 31.54 1491.53 1024.179 39.45 39.30 11.484 3.59468 4.92639 31.49 1491.50 1024.140 39.75 39.60 11.433 3.58909 4.92560 31.48 1491.31 1024.141 40.05 39.90 11.371 3.58286 4.92543 31.47 1491.09 1024.147 40.35 40.20 11.323 3.58333 4.93262 31.52 1490.98 1024.193 40.65 40.50 11.308 3.58541 4.93754 31.55 1490.97 1024.223 40.95 40.80 11.315 3.58734 4.93920 31.57 1491.02 1024.232 41.16 41.00 11.324 3.58818 4.93906 31.57 1491.05 1024.232