*2026/01/16 09:57:54.39 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/09/04 01:22:31.000 END TIME : UTC 2024/09/04 01:22:59.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 144 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 43.07 2 Depth metres 0.15 42.86 3 Temperature 'deg C (ITS90)' 9.706 16.15 4 Conductivity S/m 3.49752 3.73641 5 Conductance:Specific S/m 4.53031 5.04031 6 Salinity PSS-78 29.06 32.08 7 Speed:Sound m/s 1485.91 1503.41 8 Density kg/m^3 1021.152 1024.919 $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 : 234 LATITUDE : 48 53.12040 N ! (deg min) LONGITUDE : 125 7.05520 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240904_012231 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:05 144 144 MERGEHDR 1.3 2026/01/16 09:54:04 144 144 HDREDIT2 3.2 2026/01/16 09:55:11 ? ? REMOVECH 8.2 2026/01/16 09:56:21 144 144 CALIB 12.1 2026/01/16 09:56:55 144 144 CLEAN 5.3 2026/01/16 09:57:54 144 144 $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 16.150 3.72843 4.53031 29.06 1503.41 1021.152 0.45 0.45 15.988 3.72525 4.54434 29.15 1503.02 1021.259 0.75 0.75 15.800 3.72977 4.57080 29.33 1502.64 1021.437 1.05 1.05 15.301 3.73641 4.63561 29.76 1501.56 1021.878 1.35 1.35 14.786 3.73031 4.68798 30.10 1500.31 1022.249 1.65 1.65 14.598 3.72908 4.70869 30.23 1499.86 1022.393 1.95 1.95 14.404 3.71943 4.71965 30.30 1499.31 1022.484 2.25 2.24 14.036 3.71112 4.75346 30.51 1498.36 1022.725 2.55 2.54 13.692 3.70437 4.78703 30.72 1497.48 1022.959 2.85 2.84 13.484 3.69330 4.79847 30.79 1496.87 1023.051 3.15 3.14 13.282 3.68628 4.81458 30.89 1496.32 1023.168 3.45 3.44 13.125 3.68160 4.82838 30.97 1495.90 1023.265 3.75 3.74 12.988 3.67727 4.84002 31.04 1495.53 1023.348 4.05 4.04 12.817 3.67115 4.85383 31.12 1495.05 1023.446 4.35 4.34 12.666 3.66694 4.86764 31.21 1494.65 1023.542 4.65 4.64 12.548 3.66258 4.87723 31.27 1494.32 1023.610 4.95 4.93 12.454 3.65626 4.88105 31.28 1494.02 1023.643 5.25 5.23 12.336 3.65368 4.89302 31.36 1493.71 1023.724 5.55 5.53 12.196 3.65194 4.90906 31.46 1493.36 1023.829 5.85 5.83 12.131 3.64836 4.91278 31.48 1493.17 1023.858 6.15 6.13 12.002 3.63661 4.91409 31.47 1492.72 1023.880 6.45 6.43 11.913 3.63256 4.92045 31.51 1492.46 1023.926 6.75 6.73 11.815 3.62911 4.92889 31.56 1492.19 1023.984 7.05 7.03 11.754 3.62774 4.93520 31.60 1492.03 1024.026 7.35 7.32 11.691 3.62438 4.93902 31.62 1491.84 1024.054 7.65 7.62 11.657 3.62007 4.93779 31.61 1491.71 1024.052 7.95 7.92 11.596 3.61667 4.94137 31.62 1491.52 1024.079 8.25 8.22 11.571 3.61574 4.94351 31.64 1491.46 1024.095 8.55 8.52 11.540 3.61468 4.94624 31.65 1491.37 1024.114 8.85 8.82 11.517 3.61285 4.94683 31.65 1491.30 1024.121 9.15 9.12 11.493 3.61329 4.95062 31.68 1491.25 1024.145 9.45 9.41 11.468 3.61304 4.95365 31.70 1491.19 1024.166 9.75 9.71 11.422 3.61050 4.95644 31.71 1491.05 1024.187 10.05 10.01 11.407 3.61012 4.95798 31.72 1491.02 1024.198 10.35 10.31 11.371 3.60757 4.95944 31.73 1490.90 1024.210 10.65 10.61 11.374 3.60656 4.95755 31.71 1490.90 1024.201 10.95 10.91 11.352 3.60347 4.95638 31.70 1490.82 1024.198 11.25 11.21 11.356 3.60375 4.95619 31.70 1490.84 1024.198 11.55 11.50 11.349 3.60501 4.95888 31.72 1490.84 1024.214 11.85 11.80 11.336 3.60571 4.96165 31.74 1490.82 1024.232 12.15 12.10 11.322 3.60581 4.96373 31.75 1490.79 1024.246 12.45 12.40 11.289 3.60237 4.96338 31.75 1490.67 1024.249 12.75 12.70 11.255 3.59928 4.96379 31.75 1490.56 1024.255 13.05 13.00 11.218 3.59916 4.96871 31.78 1490.47 1024.287 13.35 13.30 11.202 3.59897 4.97065 31.79 1490.43 1024.300 13.65 13.59 11.162 3.59806 4.97495 31.81 1490.33 1024.329 13.95 13.89 11.112 3.59271 4.97444 31.80 1490.14 1024.332 14.25 14.19 11.036 3.58346 4.97208 31.78 1489.85 1024.327 14.55 14.49 10.972 3.58006 4.97618 31.80 1489.66 1024.356 14.85 14.79 10.918 3.57694 4.97926 31.82 1489.49 1024.379 15.15 15.09 10.863 3.56939 4.97644 31.79 1489.27 1024.369 15.45 15.39 10.815 3.56456 4.97629 31.78 1489.09 1024.373 15.75 15.68 10.766 3.55842 4.97463 31.76 1488.90 1024.369 16.05 15.98 10.722 3.55604 4.97741 31.78 1488.77 1024.390 16.35 16.28 10.674 3.55543 4.98317 31.81 1488.65 1024.426 16.65 16.58 10.656 3.55613 4.98670 31.84 1488.61 1024.448 16.95 16.88 10.647 3.55619 4.98800 31.84 1488.60 1024.458 17.25 17.18 10.642 3.55571 4.98813 31.84 1488.58 1024.460 17.55 17.48 10.637 3.55542 4.98842 31.85 1488.57 1024.463 17.85 17.77 10.629 3.55489 4.98872 31.85 1488.55 1024.467 18.15 18.07 10.621 3.55457 4.98949 31.85 1488.53 1024.473 18.45 18.37 10.598 3.55470 4.99280 31.87 1488.48 1024.494 18.75 18.67 10.562 3.55378 4.99662 31.89 1488.38 1024.519 19.05 18.97 10.512 3.54696 4.99407 31.87 1488.18 1024.510 19.35 19.27 10.510 3.54664 4.99382 31.87 1488.18 1024.510 19.65 19.56 10.502 3.54257 4.98929 31.83 1488.11 1024.487 19.95 19.86 10.467 3.53896 4.98909 31.83 1487.98 1024.490 20.25 20.16 10.429 3.53876 4.99410 31.86 1487.89 1024.522 20.55 20.46 10.406 3.53843 4.99695 31.88 1487.83 1024.540 20.85 20.76 10.392 3.53792 4.99824 31.88 1487.79 1024.550 21.15 21.06 10.383 3.53718 4.99848 31.88 1487.77 1024.553 21.45 21.36 10.360 3.53742 5.00205 31.91 1487.72 1024.576 21.75 21.65 10.360 3.53608 5.00018 31.89 1487.71 1024.567 22.05 21.95 10.338 3.53389 5.00007 31.89 1487.63 1024.569 22.35 22.25 10.332 3.53340 5.00024 31.89 1487.61 1024.571 22.65 22.55 10.318 3.53290 5.00152 31.90 1487.58 1024.581 22.95 22.85 10.307 3.53246 5.00244 31.90 1487.55 1024.588 23.25 23.15 10.292 3.53178 5.00359 31.91 1487.51 1024.596 23.55 23.45 10.273 3.53109 5.00540 31.92 1487.45 1024.609 23.85 23.74 10.258 3.52929 5.00492 31.91 1487.40 1024.609 24.15 24.04 10.227 3.52637 5.00523 31.91 1487.29 1024.614 24.45 24.34 10.213 3.52533 5.00569 31.91 1487.25 1024.619 24.75 24.64 10.183 3.52385 5.00795 31.93 1487.16 1024.634 25.05 24.94 10.175 3.52405 5.00938 31.93 1487.14 1024.644 25.35 25.24 10.174 3.52415 5.00957 31.94 1487.15 1024.646 25.65 25.53 10.171 3.52341 5.00898 31.93 1487.14 1024.645 25.95 25.83 10.166 3.52373 5.01016 31.94 1487.13 1024.653 26.25 26.13 10.162 3.52363 5.01052 31.94 1487.13 1024.656 26.55 26.43 10.160 3.52351 5.01075 31.94 1487.12 1024.659 26.85 26.73 10.161 3.52297 5.00972 31.93 1487.13 1024.654 27.15 27.03 10.153 3.52298 5.01090 31.94 1487.11 1024.663 27.45 27.33 10.151 3.52244 5.01042 31.94 1487.10 1024.661 27.75 27.62 10.147 3.52253 5.01120 31.94 1487.10 1024.667 28.05 27.92 10.141 3.52212 5.01143 31.94 1487.08 1024.670 28.35 28.22 10.138 3.52154 5.01104 31.94 1487.07 1024.670 28.65 28.52 10.134 3.52188 5.01210 31.95 1487.07 1024.677 28.95 28.82 10.130 3.52141 5.01191 31.94 1487.06 1024.677 29.25 29.12 10.131 3.52161 5.01211 31.95 1487.07 1024.680 29.55 29.41 10.126 3.52130 5.01232 31.95 1487.06 1024.682 29.85 29.71 10.123 3.52109 5.01253 31.95 1487.05 1024.685 30.15 30.01 10.123 3.52174 5.01347 31.95 1487.06 1024.692 30.45 30.31 10.120 3.52111 5.01297 31.95 1487.05 1024.690 30.75 30.61 10.116 3.52092 5.01323 31.95 1487.05 1024.693 31.05 30.91 10.112 3.52079 5.01360 31.95 1487.04 1024.697 31.35 31.21 10.107 3.52012 5.01336 31.95 1487.03 1024.697 31.65 31.50 10.104 3.51979 5.01338 31.95 1487.02 1024.699 31.95 31.80 10.099 3.51962 5.01389 31.95 1487.01 1024.703 32.25 32.10 10.092 3.51947 5.01467 31.96 1486.99 1024.709 32.55 32.40 10.081 3.51923 5.01580 31.96 1486.97 1024.717 32.85 32.70 10.075 3.51844 5.01563 31.96 1486.95 1024.718 33.15 33.00 10.067 3.51808 5.01617 31.96 1486.93 1024.723 33.45 33.29 10.061 3.51765 5.01645 31.97 1486.91 1024.726 33.75 33.59 10.055 3.51705 5.01652 31.97 1486.89 1024.728 34.05 33.89 10.040 3.51625 5.01750 31.97 1486.85 1024.736 34.35 34.19 10.027 3.51520 5.01791 31.97 1486.81 1024.740 34.65 34.49 10.019 3.51514 5.01887 31.98 1486.79 1024.747 34.95 34.79 10.013 3.51404 5.01825 31.97 1486.77 1024.745 35.25 35.09 9.998 3.51371 5.01980 31.98 1486.73 1024.756 35.55 35.38 9.995 3.51320 5.01954 31.98 1486.72 1024.756 35.85 35.68 9.991 3.51427 5.02173 31.99 1486.73 1024.770 36.15 35.98 9.991 3.51485 5.02257 32.00 1486.74 1024.776 36.45 36.28 9.990 3.51468 5.02246 32.00 1486.74 1024.776 36.75 36.58 9.973 3.51444 5.02453 32.01 1486.70 1024.790 37.05 36.88 9.983 3.51510 5.02395 32.01 1486.74 1024.788 37.35 37.17 9.952 3.51154 5.02332 32.00 1486.62 1024.787 37.65 37.47 9.937 3.51081 5.02446 32.00 1486.58 1024.796 37.95 37.77 9.919 3.51188 5.02859 32.03 1486.55 1024.821 38.25 38.07 9.924 3.51282 5.02922 32.04 1486.58 1024.825 38.55 38.37 9.906 3.51158 5.03000 32.04 1486.52 1024.832 38.85 38.67 9.905 3.50962 5.02737 32.02 1486.50 1024.819 39.15 38.96 9.890 3.50941 5.02931 32.03 1486.46 1024.832 39.45 39.26 9.885 3.50904 5.02940 32.03 1486.45 1024.834 39.75 39.56 9.879 3.50662 5.02683 32.01 1486.41 1024.821 40.05 39.86 9.857 3.50609 5.02919 32.03 1486.35 1024.837 40.35 40.16 9.840 3.50837 5.03491 32.06 1486.34 1024.871 40.65 40.46 9.839 3.50650 5.03242 32.05 1486.32 1024.858 40.95 40.76 9.821 3.50448 5.03210 32.04 1486.26 1024.859 41.25 41.05 9.796 3.50231 5.03258 32.04 1486.17 1024.864 41.55 41.35 9.772 3.50200 5.03568 32.06 1486.11 1024.884 41.85 41.65 9.761 3.50143 5.03650 32.06 1486.08 1024.891 42.15 41.95 9.753 3.50016 5.03579 32.06 1486.05 1024.888 42.45 42.25 9.735 3.50011 5.03836 32.07 1486.01 1024.905 42.75 42.55 9.706 3.49860 5.04031 32.08 1485.92 1024.919 43.07 42.86 9.706 3.49752 5.03880 32.07 1485.91 1024.912