*2026/01/16 09:57:54.31 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/09/03 23:31:46.000 END TIME : UTC 2024/09/03 23:32:06.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 104 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 31.15 2 Depth metres 0.15 31.02 3 Temperature 'deg C (ITS90)' 9.991 18.588 4 Conductivity S/m 3.42448 3.74463 5 Conductance:Specific S/m 3.92827 5.01815 6 Salinity PSS-78 24.9 31.97 7 Speed:Sound m/s 1486.61 1506.27 8 Density kg/m^3 1017.423 1024.726 $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 : 231 LATITUDE : 48 57.58310 N ! (deg min) LONGITUDE : 124 59.24670 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240903_233146 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:05 104 104 MERGEHDR 1.3 2026/01/16 09:54:04 104 104 HDREDIT2 3.2 2026/01/16 09:55:11 ? ? REMOVECH 8.2 2026/01/16 09:56:21 104 104 CALIB 12.1 2026/01/16 09:56:55 104 104 CLEAN 5.3 2026/01/16 09:57:54 104 104 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:11 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 09:56:21 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:55 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 18.588 3.42448 3.92827 24.90 1506.11 1017.423 0.45 0.45 18.344 3.43427 3.96165 25.13 1505.65 1017.654 0.75 0.75 18.088 3.48418 4.04306 25.69 1505.52 1018.144 1.05 1.05 18.000 3.58628 4.17012 26.59 1506.27 1018.847 1.35 1.35 17.773 3.59882 4.20685 26.84 1505.88 1019.092 1.65 1.65 17.623 3.59998 4.22306 26.95 1505.55 1019.211 1.95 1.95 17.413 3.60967 4.25534 27.17 1505.17 1019.428 2.25 2.25 17.050 3.66133 4.35350 27.85 1504.84 1020.032 2.55 2.55 16.525 3.69381 4.44768 28.49 1503.97 1020.644 2.85 2.85 16.092 3.72942 4.53793 29.11 1503.33 1021.215 3.15 3.15 15.861 3.74463 4.58214 29.41 1502.96 1021.499 3.45 3.45 15.296 3.72751 4.62515 29.68 1501.50 1021.831 3.75 3.75 14.909 3.72135 4.66229 29.92 1500.54 1022.098 4.05 4.05 14.625 3.71832 4.69189 30.11 1499.85 1022.306 4.35 4.35 14.366 3.71669 4.72065 30.30 1499.23 1022.505 4.65 4.65 14.193 3.71481 4.73913 30.42 1498.81 1022.633 4.95 4.95 14.011 3.71183 4.75739 30.54 1498.36 1022.761 5.25 5.24 13.667 3.69610 4.77939 30.67 1497.38 1022.931 5.55 5.54 13.121 3.68397 4.83197 30.99 1495.95 1023.294 5.85 5.84 12.830 3.67368 4.85546 31.14 1495.14 1023.461 6.15 6.14 12.678 3.66910 4.86904 31.22 1494.73 1023.556 6.45 6.44 12.553 3.66742 4.88305 31.31 1494.41 1023.649 6.75 6.74 12.457 3.66410 4.89111 31.36 1494.15 1023.706 7.05 7.04 12.373 3.65975 4.89630 31.38 1493.90 1023.745 7.35 7.34 12.350 3.65691 4.89553 31.38 1493.82 1023.745 7.65 7.63 12.288 3.65160 4.89643 31.38 1493.61 1023.758 7.95 7.93 12.089 3.64076 4.90818 31.44 1493.01 1023.846 8.25 8.23 11.963 3.62980 4.91004 31.44 1492.58 1023.870 8.55 8.53 11.854 3.62704 4.92084 31.51 1492.29 1023.943 8.85 8.83 11.786 3.62274 4.92404 31.52 1492.08 1023.968 9.15 9.13 11.731 3.61949 4.92696 31.54 1491.91 1023.991 9.45 9.43 11.657 3.61371 4.92915 31.54 1491.66 1024.012 9.75 9.73 11.603 3.61198 4.93399 31.57 1491.52 1024.045 10.05 10.02 11.561 3.61050 4.93759 31.59 1491.40 1024.070 10.35 10.32 11.494 3.60609 4.94061 31.61 1491.19 1024.095 10.65 10.62 11.463 3.60355 4.94141 31.61 1491.09 1024.104 10.95 10.92 11.385 3.59616 4.94179 31.60 1490.81 1024.114 11.25 11.22 11.327 3.59174 4.94366 31.61 1490.62 1024.131 11.55 11.52 11.266 3.58838 4.94727 31.63 1490.44 1024.158 11.85 11.82 11.222 3.58401 4.94733 31.62 1490.28 1024.163 12.15 12.11 11.166 3.58117 4.95101 31.64 1490.11 1024.190 12.45 12.41 11.108 3.58022 4.95763 31.68 1489.96 1024.233 12.75 12.71 11.066 3.57765 4.95990 31.70 1489.83 1024.250 13.05 13.01 10.993 3.57131 4.96118 31.70 1489.58 1024.265 13.35 13.31 10.918 3.56712 4.96558 31.72 1489.35 1024.297 13.65 13.61 10.814 3.55966 4.96959 31.74 1489.00 1024.329 13.95 13.91 10.748 3.55638 4.97429 31.76 1488.80 1024.361 14.25 14.20 10.724 3.55561 4.97650 31.77 1488.74 1024.377 14.55 14.50 10.694 3.55478 4.97947 31.79 1488.66 1024.397 14.85 14.80 10.681 3.55223 4.97777 31.78 1488.60 1024.390 15.15 15.10 10.657 3.55102 4.97941 31.79 1488.53 1024.402 15.45 15.40 10.618 3.54901 4.98210 31.80 1488.41 1024.421 15.75 15.70 10.596 3.54811 4.98387 31.81 1488.35 1024.434 16.05 16.00 10.580 3.54743 4.98511 31.82 1488.31 1024.443 16.35 16.29 10.568 3.54627 4.98522 31.82 1488.27 1024.446 16.65 16.59 10.551 3.54561 4.98667 31.82 1488.22 1024.456 16.95 16.89 10.545 3.54533 4.98706 31.83 1488.21 1024.460 17.25 17.19 10.533 3.54496 4.98828 31.83 1488.18 1024.469 17.55 17.49 10.527 3.54410 4.98788 31.83 1488.16 1024.469 17.85 17.79 10.522 3.54407 4.98853 31.83 1488.15 1024.474 18.15 18.09 10.520 3.54437 4.98929 31.84 1488.15 1024.480 18.45 18.38 10.511 3.54190 4.98700 31.82 1488.11 1024.469 18.75 18.68 10.502 3.54083 4.98679 31.82 1488.07 1024.470 19.05 18.98 10.483 3.54068 4.98931 31.83 1488.03 1024.486 19.35 19.28 10.476 3.53780 4.98621 31.81 1487.98 1024.471 19.65 19.58 10.434 3.53486 4.98795 31.82 1487.85 1024.485 19.95 19.88 10.386 3.53373 4.99310 31.85 1487.72 1024.518 20.25 20.17 10.322 3.53102 4.99831 31.88 1487.53 1024.553 20.55 20.47 10.274 3.52885 5.00211 31.90 1487.38 1024.578 20.85 20.77 10.246 3.52688 5.00330 31.90 1487.29 1024.588 21.15 21.07 10.202 3.52490 5.00662 31.92 1487.16 1024.611 21.45 21.37 10.192 3.52376 5.00652 31.92 1487.13 1024.612 21.75 21.67 10.156 3.52117 5.00788 31.92 1487.01 1024.623 22.05 21.97 10.151 3.52122 5.00864 31.93 1487.00 1024.629 22.35 22.26 10.138 3.52061 5.00969 31.93 1486.97 1024.637 22.65 22.56 10.119 3.51984 5.01127 31.94 1486.91 1024.648 22.95 22.86 10.117 3.51923 5.01074 31.94 1486.90 1024.647 23.25 23.16 10.106 3.51864 5.01142 31.94 1486.88 1024.652 23.55 23.46 10.103 3.51790 5.01078 31.94 1486.86 1024.650 23.85 23.76 10.092 3.51835 5.01299 31.95 1486.85 1024.665 24.15 24.05 10.084 3.51783 5.01345 31.95 1486.82 1024.669 24.45 24.35 10.074 3.51664 5.01322 31.95 1486.79 1024.669 24.75 24.65 10.062 3.51624 5.01425 31.95 1486.76 1024.677 25.05 24.95 10.054 3.51520 5.01402 31.95 1486.73 1024.678 25.35 25.25 10.050 3.51517 5.01452 31.95 1486.72 1024.682 25.65 25.55 10.045 3.51499 5.01490 31.96 1486.71 1024.686 25.95 25.85 10.032 3.51396 5.01536 31.96 1486.67 1024.690 26.25 26.14 10.029 3.51376 5.01548 31.96 1486.67 1024.693 26.55 26.44 10.023 3.51379 5.01647 31.96 1486.66 1024.700 26.85 26.74 10.019 3.51311 5.01606 31.96 1486.64 1024.699 27.15 27.04 10.018 3.51264 5.01547 31.96 1486.64 1024.697 27.45 27.34 10.012 3.51275 5.01644 31.96 1486.63 1024.704 27.75 27.64 10.008 3.51262 5.01682 31.96 1486.62 1024.708 28.05 27.93 10.009 3.51269 5.01689 31.96 1486.63 1024.709 28.35 28.23 10.007 3.51336 5.01815 31.97 1486.64 1024.717 28.65 28.53 10.006 3.51319 5.01799 31.97 1486.64 1024.718 28.95 28.83 10.009 3.51259 5.01663 31.96 1486.65 1024.711 29.25 29.13 10.010 3.51243 5.01629 31.96 1486.65 1024.711 29.55 29.43 10.014 3.51323 5.01689 31.96 1486.67 1024.715 29.85 29.73 10.016 3.51327 5.01661 31.96 1486.69 1024.715 30.15 30.02 10.019 3.51260 5.01527 31.95 1486.69 1024.708 30.45 30.32 10.008 3.51141 5.01518 31.95 1486.65 1024.710 30.75 30.62 9.991 3.51150 5.01771 31.97 1486.61 1024.726 31.15 31.02 10.001 3.51198 5.01702 31.96 1486.65 1024.723