*2026/01/16 09:57:53.98 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/08/15 20:31:36.000 END TIME : UTC 2024/08/15 20:32:00.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 125 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 37.36 2 Depth metres 0.15 37.19 3 Temperature 'deg C (ITS90)' 9.417 18.435 4 Conductivity S/m 3.49014 4.15947 5 Conductance:Specific S/m 4.75317 5.07537 6 Salinity PSS-78 30.58 32.29 7 Speed:Sound m/s 1484.99 1512.55 8 Density kg/m^3 1022.123 1025.104 $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 : 217 LATITUDE : 48 56.74560 N ! (deg min) LONGITUDE : 125 19.33670 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240815_203136 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:04 125 125 MERGEHDR 1.3 2026/01/16 09:54:02 125 125 HDREDIT2 3.2 2026/01/16 09:55:10 ? ? REMOVECH 8.2 2026/01/16 09:56:20 125 125 CALIB 12.1 2026/01/16 09:56:54 125 125 CLEAN 5.3 2026/01/16 09:57:53 125 125 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:10 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 09:56:54 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 18.435 4.15947 4.78813 31.02 1512.55 1022.123 0.45 0.45 18.350 4.15845 4.79640 31.08 1512.37 1022.188 0.75 0.75 18.303 4.15246 4.79469 31.06 1512.22 1022.190 1.05 1.05 18.136 4.13875 4.79731 31.07 1511.75 1022.240 1.35 1.35 18.013 4.12274 4.79246 31.03 1511.35 1022.240 1.65 1.65 17.830 4.11560 4.80456 31.11 1510.90 1022.345 1.95 1.94 17.764 4.11620 4.81265 31.17 1510.77 1022.405 2.25 2.24 17.731 4.11243 4.81199 31.16 1510.67 1022.409 2.55 2.54 17.654 4.10937 4.81715 31.19 1510.48 1022.454 2.85 2.84 17.578 4.10417 4.81956 31.21 1510.28 1022.484 3.15 3.14 17.526 4.09769 4.81788 31.19 1510.11 1022.486 3.45 3.44 17.459 4.09321 4.82018 31.21 1509.93 1022.513 3.75 3.74 17.323 4.08176 4.82212 31.21 1509.53 1022.552 4.05 4.04 17.009 4.05956 4.83173 31.27 1508.65 1022.667 4.35 4.34 16.541 4.03298 4.85426 31.40 1507.38 1022.880 4.65 4.64 16.237 3.98245 4.82872 31.20 1506.22 1022.795 4.95 4.94 16.001 3.94547 4.81139 31.06 1505.33 1022.742 5.25 5.23 15.623 3.91173 4.81462 31.06 1504.15 1022.826 5.55 5.53 15.017 3.80414 4.75317 30.58 1501.68 1022.588 5.85 5.83 14.423 3.78293 4.79790 30.86 1500.09 1022.928 6.15 6.13 14.016 3.77021 4.83167 31.07 1499.01 1023.175 6.45 6.43 13.678 3.76548 4.86774 31.30 1498.18 1023.422 6.75 6.73 13.353 3.75330 4.89310 31.45 1497.28 1023.607 7.05 7.03 13.119 3.72012 4.87968 31.33 1496.37 1023.564 7.35 7.33 12.930 3.71465 4.89672 31.44 1495.86 1023.683 7.65 7.63 12.692 3.69993 4.90812 31.50 1495.13 1023.776 7.95 7.92 12.531 3.68656 4.91138 31.51 1494.60 1023.814 8.25 8.22 12.459 3.68401 4.91737 31.54 1494.40 1023.857 8.55 8.52 12.400 3.67787 4.91688 31.53 1494.20 1023.862 8.85 8.82 12.300 3.67596 4.92752 31.60 1493.94 1023.933 9.15 9.12 12.180 3.66785 4.93260 31.62 1493.56 1023.976 9.45 9.42 12.069 3.66132 4.93858 31.65 1493.22 1024.022 9.75 9.72 12.045 3.65986 4.93973 31.66 1493.15 1024.032 10.05 10.01 11.979 3.65349 4.93997 31.65 1492.92 1024.042 10.35 10.31 11.911 3.64369 4.93578 31.62 1492.65 1024.027 10.65 10.61 11.791 3.63160 4.93549 31.60 1492.22 1024.039 10.95 10.91 11.682 3.62722 4.94420 31.65 1491.91 1024.099 11.25 11.21 11.601 3.62594 4.95331 31.71 1491.70 1024.158 11.55 11.51 11.542 3.62295 4.95726 31.73 1491.52 1024.187 11.85 11.81 11.511 3.62105 4.95888 31.74 1491.43 1024.200 12.15 12.10 11.470 3.61928 4.96201 31.76 1491.31 1024.223 12.45 12.40 11.443 3.61734 4.96306 31.76 1491.23 1024.233 12.75 12.70 11.404 3.61542 4.96569 31.78 1491.11 1024.252 13.05 13.00 11.388 3.61453 4.96669 31.78 1491.07 1024.260 13.35 13.30 11.355 3.61238 4.96826 31.79 1490.97 1024.273 13.65 13.60 11.335 3.61123 4.96935 31.79 1490.91 1024.282 13.95 13.90 11.268 3.60652 4.97199 31.80 1490.69 1024.304 14.25 14.19 11.237 3.60437 4.97331 31.81 1490.60 1024.316 14.55 14.49 11.172 3.60087 4.97742 31.83 1490.40 1024.345 14.85 14.79 11.125 3.59351 4.97371 31.80 1490.20 1024.330 15.15 15.09 10.924 3.58109 4.98423 31.85 1489.56 1024.407 15.45 15.39 10.868 3.57558 4.98436 31.85 1489.36 1024.414 15.75 15.69 10.779 3.57082 4.99008 31.88 1489.08 1024.454 16.05 15.99 10.700 3.55886 4.98441 31.83 1488.75 1024.430 16.35 16.28 10.604 3.55443 4.99163 31.87 1488.46 1024.479 16.65 16.58 10.553 3.55255 4.99610 31.89 1488.31 1024.508 16.95 16.88 10.508 3.55223 5.00207 31.93 1488.20 1024.546 17.25 17.18 10.473 3.55086 5.00503 31.94 1488.10 1024.566 17.55 17.48 10.428 3.54897 5.00867 31.96 1487.97 1024.591 17.85 17.78 10.413 3.54804 5.00947 31.97 1487.92 1024.598 18.15 18.08 10.402 3.54660 5.00904 31.96 1487.88 1024.597 18.45 18.37 10.377 3.54446 5.00951 31.96 1487.80 1024.603 18.75 18.67 10.338 3.54242 5.01223 31.98 1487.68 1024.622 19.05 18.97 10.320 3.54093 5.01260 31.98 1487.62 1024.627 19.35 19.27 10.307 3.54035 5.01366 31.98 1487.59 1024.635 19.65 19.57 10.289 3.54021 5.01600 32.00 1487.54 1024.650 19.95 19.87 10.272 3.53880 5.01651 32.00 1487.49 1024.655 20.25 20.16 10.265 3.53821 5.01656 32.00 1487.47 1024.657 20.55 20.46 10.257 3.53812 5.01762 32.00 1487.45 1024.665 20.85 20.76 10.251 3.53698 5.01689 32.00 1487.43 1024.663 21.15 21.06 10.239 3.53723 5.01897 32.01 1487.40 1024.676 21.45 21.36 10.230 3.53650 5.01916 32.01 1487.38 1024.679 21.75 21.66 10.211 3.53576 5.02080 32.02 1487.33 1024.691 22.05 21.96 10.202 3.53496 5.02101 32.02 1487.30 1024.694 22.35 22.25 10.192 3.53412 5.02124 32.02 1487.27 1024.697 22.65 22.55 10.169 3.53190 5.02134 32.02 1487.19 1024.700 22.95 22.85 10.144 3.53046 5.02291 32.03 1487.11 1024.712 23.25 23.15 10.115 3.52782 5.02324 32.03 1487.01 1024.717 23.55 23.45 10.097 3.52754 5.02542 32.04 1486.97 1024.732 23.85 23.75 10.082 3.52689 5.02660 32.04 1486.92 1024.740 24.15 24.04 10.072 3.52668 5.02777 32.05 1486.90 1024.749 24.45 24.34 10.055 3.52626 5.02960 32.06 1486.86 1024.761 24.75 24.64 10.049 3.52517 5.02898 32.06 1486.83 1024.759 25.05 24.94 10.040 3.52522 5.03034 32.07 1486.81 1024.769 25.35 25.24 10.035 3.52479 5.03039 32.06 1486.80 1024.771 25.65 25.54 10.020 3.52419 5.03162 32.07 1486.76 1024.780 25.95 25.84 10.014 3.52300 5.03083 32.06 1486.74 1024.777 26.25 26.13 9.996 3.52240 5.03250 32.07 1486.69 1024.788 26.55 26.43 9.977 3.52016 5.03206 32.07 1486.62 1024.789 26.85 26.73 9.945 3.51939 5.03565 32.09 1486.53 1024.812 27.15 27.03 9.918 3.51752 5.03686 32.09 1486.44 1024.821 27.45 27.33 9.897 3.51647 5.03838 32.10 1486.38 1024.832 27.75 27.63 9.880 3.51573 5.03972 32.11 1486.34 1024.842 28.05 27.92 9.870 3.51486 5.03998 32.11 1486.30 1024.845 28.35 28.22 9.842 3.51439 5.04330 32.13 1486.23 1024.867 28.65 28.52 9.821 3.51191 5.04280 32.12 1486.15 1024.866 28.95 28.82 9.792 3.51049 5.04499 32.13 1486.07 1024.881 29.25 29.12 9.775 3.50903 5.04527 32.13 1486.01 1024.885 29.55 29.42 9.750 3.50792 5.04740 32.15 1485.94 1024.900 29.85 29.71 9.729 3.50700 5.04914 32.16 1485.87 1024.912 30.15 30.01 9.708 3.50594 5.05056 32.16 1485.81 1024.922 30.45 30.31 9.702 3.50626 5.05199 32.17 1485.81 1024.932 30.75 30.61 9.690 3.50591 5.05322 32.18 1485.78 1024.940 31.05 30.91 9.683 3.50441 5.05210 32.17 1485.74 1024.936 31.35 31.21 9.673 3.50436 5.05343 32.18 1485.72 1024.945 31.65 31.51 9.668 3.50377 5.05328 32.18 1485.71 1024.946 31.95 31.80 9.658 3.50417 5.05540 32.19 1485.69 1024.959 32.25 32.10 9.654 3.50432 5.05620 32.19 1485.69 1024.965 32.55 32.40 9.658 3.50377 5.05482 32.18 1485.70 1024.958 32.85 32.70 9.638 3.50314 5.05680 32.20 1485.64 1024.972 33.15 33.00 9.609 3.50308 5.06098 32.22 1485.57 1024.998 33.45 33.30 9.590 3.50012 5.05943 32.21 1485.49 1024.991 33.75 33.59 9.586 3.49886 5.05823 32.20 1485.47 1024.986 34.05 33.89 9.553 3.49759 5.06121 32.21 1485.37 1025.006 34.35 34.19 9.522 3.49593 5.06332 32.23 1485.28 1025.020 34.65 34.49 9.491 3.49438 5.06564 32.24 1485.19 1025.036 34.95 34.79 9.464 3.49467 5.07006 32.26 1485.12 1025.063 35.25 35.09 9.449 3.49504 5.07278 32.28 1485.10 1025.080 35.55 35.38 9.450 3.49394 5.07105 32.27 1485.09 1025.072 35.85 35.68 9.433 3.49330 5.07256 32.28 1485.04 1025.082 36.15 35.98 9.424 3.49285 5.07335 32.28 1485.02 1025.089 36.45 36.28 9.418 3.49282 5.07415 32.29 1485.01 1025.094 36.75 36.58 9.417 3.49325 5.07495 32.29 1485.01 1025.100 37.05 36.88 9.418 3.49367 5.07537 32.29 1485.03 1025.104 37.36 37.19 9.418 3.49014 5.07024 32.26 1484.99 1025.077