*2026/01/16 10:37:58.20 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/07/22 17:36:40.000 END TIME : UTC 2025/07/22 17:37:08.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 143 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 42.63 2 Depth metres 0.15 42.41 3 Temperature 'deg C (ITS90)' 9.2 15.073 4 Conductivity S/m 3.45644 3.88797 5 Conductance:Specific S/m 4.85116 5.05557 6 Salinity PSS-78 31.28 32.12 7 Speed:Sound m/s 1484.03 1502.59 8 Density kg/m^3 1023.097 1025.028 $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 : 2025-087 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 225 LATITUDE : 49 52.04580 N ! (deg min) LONGITUDE : 126 55.57020 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250722_173640 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:34 143 143 MERGEHDR 1.3 2026/01/16 10:35:48 143 143 HDREDIT2 3.2 2026/01/16 10:36:19 ? ? REMOVECH 8.2 2026/01/16 10:36:51 143 143 CALIB 12.1 2026/01/16 10:37:22 143 143 CLEAN 5.3 2026/01/16 10:37:58 143 143 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:19 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 10:36:51 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:22 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 10:37:42 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 15.073 3.88797 4.85116 31.29 1502.59 1023.097 0.45 0.45 15.044 3.88762 4.85423 31.31 1502.52 1023.120 0.75 0.75 15.045 3.88729 4.85371 31.30 1502.53 1023.119 1.05 1.05 15.021 3.88685 4.85606 31.32 1502.47 1023.137 1.35 1.34 14.987 3.88634 4.85955 31.34 1502.40 1023.163 1.65 1.64 14.942 3.88509 4.86340 31.37 1502.29 1023.192 1.95 1.94 14.894 3.88027 4.86323 31.36 1502.13 1023.200 2.25 2.24 14.810 3.87985 4.87291 31.42 1501.94 1023.268 2.55 2.54 14.709 3.86688 4.86902 31.39 1501.58 1023.263 2.85 2.84 14.633 3.86012 4.86986 31.39 1501.34 1023.281 3.15 3.14 14.558 3.84735 4.86294 31.33 1501.04 1023.255 3.45 3.44 14.488 3.83610 4.85724 31.29 1500.77 1023.235 3.75 3.74 14.360 3.83029 4.86576 31.34 1500.41 1023.303 4.05 4.03 14.273 3.82827 4.87397 31.39 1500.20 1023.362 4.35 4.33 14.225 3.82701 4.87827 31.42 1500.08 1023.394 4.65 4.63 14.184 3.82680 4.88313 31.45 1499.99 1023.429 4.95 4.93 14.157 3.82480 4.88393 31.45 1499.91 1023.438 5.25 5.23 14.130 3.82405 4.88629 31.47 1499.84 1023.456 5.55 5.53 14.094 3.82248 4.88881 31.48 1499.75 1023.477 5.85 5.83 14.029 3.82051 4.89443 31.52 1499.58 1023.518 6.15 6.13 13.899 3.81268 4.90073 31.55 1499.20 1023.573 6.45 6.42 13.678 3.79648 4.90781 31.58 1498.51 1023.644 6.75 6.72 13.434 3.76982 4.90423 31.54 1497.66 1023.658 7.05 7.02 13.129 3.74514 4.91119 31.56 1496.67 1023.737 7.35 7.32 12.809 3.71319 4.91040 31.53 1495.56 1023.773 7.65 7.62 12.552 3.67629 4.89497 31.39 1494.53 1023.720 7.95 7.92 12.309 3.64382 4.88331 31.28 1493.58 1023.684 8.25 8.22 11.947 3.62252 4.90236 31.38 1492.46 1023.830 8.55 8.52 11.651 3.61029 4.92523 31.52 1491.60 1023.987 8.85 8.81 11.490 3.59162 4.92142 31.47 1490.99 1023.983 9.15 9.11 11.313 3.58162 4.93154 31.52 1490.44 1024.057 9.45 9.41 11.173 3.57680 4.94404 31.60 1490.04 1024.140 9.75 9.71 11.038 3.57603 4.96148 31.71 1489.70 1024.249 10.05 10.01 10.883 3.57343 4.97923 31.81 1489.28 1024.361 10.35 10.31 10.739 3.56704 4.99041 31.88 1488.85 1024.436 10.65 10.61 10.640 3.55061 4.98118 31.80 1488.41 1024.394 10.95 10.90 10.523 3.52913 4.96737 31.69 1487.86 1024.328 11.25 11.20 10.402 3.51582 4.96556 31.66 1487.40 1024.328 11.55 11.50 10.243 3.50929 4.97871 31.73 1486.92 1024.413 11.85 11.80 10.102 3.50526 4.99297 31.81 1486.52 1024.503 12.15 12.10 10.017 3.50206 5.00054 31.86 1486.27 1024.551 12.45 12.40 9.948 3.49830 5.00506 31.88 1486.05 1024.582 12.75 12.70 9.889 3.49189 5.00431 31.87 1485.82 1024.583 13.05 12.99 9.827 3.49155 5.01273 31.92 1485.67 1024.634 13.35 13.29 9.784 3.48879 5.01491 31.93 1485.53 1024.650 13.65 13.59 9.752 3.48844 5.01903 31.95 1485.45 1024.676 13.95 13.89 9.725 3.48622 5.01977 31.95 1485.35 1024.683 14.25 14.19 9.706 3.48532 5.02125 31.96 1485.30 1024.693 14.55 14.49 9.694 3.48411 5.02123 31.96 1485.26 1024.695 14.85 14.78 9.683 3.48279 5.02092 31.96 1485.22 1024.696 15.15 15.08 9.655 3.48288 5.02503 31.98 1485.15 1024.721 15.45 15.38 9.632 3.48133 5.02617 31.99 1485.08 1024.730 15.75 15.68 9.624 3.48059 5.02634 31.99 1485.05 1024.733 16.05 15.98 9.616 3.47892 5.02502 31.98 1485.02 1024.727 16.35 16.28 9.594 3.47923 5.02869 32.00 1484.97 1024.750 16.65 16.57 9.576 3.47919 5.03125 32.01 1484.93 1024.766 16.95 16.87 9.564 3.47867 5.03223 32.02 1484.89 1024.773 17.25 17.17 9.557 3.47723 5.03118 32.01 1484.86 1024.769 17.55 17.47 9.541 3.47697 5.03308 32.02 1484.83 1024.782 17.85 17.77 9.532 3.47676 5.03410 32.03 1484.80 1024.789 18.15 18.07 9.533 3.47674 5.03386 32.03 1484.81 1024.789 18.45 18.37 9.522 3.47525 5.03344 32.02 1484.77 1024.789 18.75 18.66 9.509 3.47497 5.03487 32.03 1484.74 1024.798 19.05 18.96 9.502 3.47479 5.03557 32.03 1484.72 1024.804 19.35 19.26 9.487 3.47445 5.03730 32.04 1484.68 1024.815 19.65 19.56 9.474 3.47382 5.03837 32.05 1484.65 1024.823 19.95 19.86 9.468 3.47276 5.03770 32.04 1484.62 1024.821 20.25 20.16 9.465 3.47030 5.03457 32.02 1484.59 1024.805 20.55 20.45 9.448 3.46982 5.03627 32.03 1484.54 1024.817 20.85 20.75 9.433 3.46931 5.03784 32.04 1484.50 1024.828 21.15 21.05 9.423 3.46850 5.03801 32.04 1484.47 1024.830 21.45 21.35 9.415 3.46850 5.03925 32.05 1484.46 1024.839 21.75 21.65 9.410 3.46838 5.03974 32.05 1484.45 1024.843 22.05 21.95 9.405 3.46859 5.04082 32.06 1484.44 1024.850 22.35 22.24 9.396 3.46789 5.04115 32.06 1484.41 1024.854 22.65 22.54 9.390 3.46791 5.04202 32.06 1484.40 1024.860 22.95 22.84 9.386 3.46594 5.03973 32.04 1484.37 1024.849 23.25 23.14 9.379 3.46666 5.04177 32.06 1484.37 1024.862 23.55 23.44 9.373 3.46636 5.04224 32.06 1484.35 1024.866 23.85 23.74 9.369 3.46668 5.04335 32.07 1484.35 1024.874 24.15 24.03 9.364 3.46664 5.04399 32.07 1484.34 1024.879 24.45 24.33 9.360 3.46636 5.04417 32.07 1484.34 1024.881 24.75 24.63 9.357 3.46644 5.04467 32.07 1484.33 1024.885 25.05 24.93 9.357 3.46620 5.04433 32.07 1484.34 1024.885 25.35 25.23 9.352 3.46534 5.04393 32.07 1484.31 1024.884 25.65 25.53 9.340 3.46496 5.04501 32.07 1484.29 1024.892 25.95 25.82 9.330 3.46354 5.04443 32.07 1484.25 1024.891 26.25 26.12 9.322 3.46295 5.04477 32.07 1484.22 1024.894 26.55 26.42 9.315 3.46247 5.04516 32.07 1484.20 1024.898 26.85 26.72 9.307 3.46141 5.04483 32.07 1484.17 1024.898 27.15 27.02 9.298 3.46166 5.04651 32.08 1484.16 1024.909 27.45 27.32 9.289 3.46101 5.04684 32.08 1484.13 1024.912 27.75 27.61 9.283 3.46109 5.04787 32.09 1484.12 1024.919 28.05 27.91 9.275 3.46066 5.04834 32.09 1484.10 1024.924 28.35 28.21 9.270 3.46006 5.04827 32.09 1484.08 1024.925 28.65 28.51 9.265 3.46034 5.04942 32.09 1484.08 1024.933 28.95 28.81 9.259 3.45999 5.04977 32.09 1484.07 1024.936 29.25 29.11 9.255 3.45860 5.04828 32.08 1484.04 1024.929 29.55 29.41 9.253 3.45900 5.04922 32.09 1484.05 1024.936 29.85 29.70 9.251 3.45959 5.05040 32.10 1484.05 1024.944 30.15 30.00 9.248 3.45873 5.04961 32.09 1484.04 1024.941 30.45 30.30 9.245 3.45890 5.05029 32.10 1484.04 1024.946 30.75 30.60 9.243 3.45898 5.05068 32.10 1484.04 1024.949 31.05 30.90 9.242 3.45899 5.05086 32.10 1484.04 1024.952 31.35 31.20 9.241 3.45928 5.05141 32.10 1484.05 1024.956 31.65 31.49 9.240 3.45911 5.05129 32.10 1484.05 1024.957 31.95 31.79 9.240 3.45869 5.05062 32.10 1484.05 1024.954 32.25 32.09 9.236 3.45912 5.05191 32.11 1484.05 1024.963 32.55 32.39 9.234 3.45864 5.05152 32.10 1484.04 1024.962 32.85 32.69 9.232 3.45840 5.05147 32.10 1484.04 1024.963 33.15 32.99 9.229 3.45876 5.05240 32.11 1484.04 1024.970 33.45 33.28 9.227 3.45911 5.05317 32.11 1484.04 1024.975 33.75 33.58 9.226 3.45810 5.05181 32.10 1484.03 1024.969 34.05 33.88 9.225 3.45888 5.05320 32.11 1484.04 1024.978 34.35 34.18 9.223 3.45825 5.05250 32.11 1484.04 1024.976 34.65 34.48 9.222 3.45868 5.05337 32.11 1484.04 1024.982 34.95 34.78 9.221 3.45830 5.05296 32.11 1484.04 1024.981 35.25 35.07 9.219 3.45876 5.05388 32.12 1484.05 1024.987 35.55 35.37 9.218 3.45823 5.05318 32.11 1484.04 1024.984 35.85 35.67 9.219 3.45802 5.05274 32.11 1484.05 1024.983 36.15 35.97 9.217 3.45831 5.05347 32.11 1484.05 1024.989 36.45 36.27 9.217 3.45800 5.05310 32.11 1484.05 1024.988 36.75 36.57 9.217 3.45796 5.05291 32.11 1484.06 1024.988 37.05 36.86 9.217 3.45812 5.05320 32.11 1484.06 1024.991 37.35 37.16 9.217 3.45840 5.05362 32.11 1484.07 1024.995 37.65 37.46 9.216 3.45854 5.05404 32.12 1484.07 1024.998 37.95 37.76 9.214 3.45783 5.05323 32.11 1484.06 1024.995 38.25 38.06 9.213 3.45773 5.05330 32.11 1484.06 1024.997 38.55 38.36 9.215 3.45793 5.05322 32.11 1484.08 1024.998 38.85 38.65 9.216 3.45746 5.05239 32.10 1484.08 1024.994 39.15 38.95 9.212 3.45644 5.05150 32.10 1484.06 1024.991 39.45 39.25 9.208 3.45702 5.05297 32.11 1484.06 1025.000 39.75 39.55 9.204 3.45693 5.05336 32.11 1484.06 1025.004 40.05 39.85 9.203 3.45728 5.05404 32.11 1484.06 1025.009 40.35 40.15 9.204 3.45695 5.05343 32.11 1484.07 1025.007 40.65 40.44 9.203 3.45713 5.05384 32.11 1484.07 1025.010 40.95 40.74 9.202 3.45683 5.05358 32.11 1484.07 1025.010 41.25 41.04 9.200 3.45653 5.05341 32.11 1484.06 1025.011 41.55 41.34 9.200 3.45755 5.05490 32.12 1484.08 1025.020 41.85 41.64 9.200 3.45790 5.05541 32.12 1484.09 1025.024 42.15 41.94 9.205 3.45825 5.05515 32.12 1484.11 1025.024 42.45 42.23 9.205 3.45803 5.05487 32.12 1484.12 1025.024 42.63 42.41 9.208 3.45880 5.05557 32.12 1484.14 1025.028