*2026/01/16 09:57:54.27 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/09/03 22:17:06.000 END TIME : UTC 2024/09/03 22:17:27.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 108 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 32.38 2 Depth metres 0.15 32.25 3 Temperature 'deg C (ITS90)' 9.952 16.144 4 Conductivity S/m 3.50321 3.60456 5 Conductance:Specific S/m 4.38046 5.01151 6 Salinity PSS-78 27.99 31.92 7 Speed:Sound m/s 1486.44 1502.17 8 Density kg/m^3 1020.337 1024.701 $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 : 229 LATITUDE : 48 58.93830 N ! (deg min) LONGITUDE : 124 55.33860 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240903_221706 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:05 108 108 MERGEHDR 1.3 2026/01/16 09:54:04 108 108 HDREDIT2 3.2 2026/01/16 09:55:10 ? ? REMOVECH 8.2 2026/01/16 09:56:21 108 108 CALIB 12.1 2026/01/16 09:56:55 108 108 CLEAN 5.3 2026/01/16 09:57:54 108 108 $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 09:56:21 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 16.144 3.60456 4.38046 27.99 1502.17 1020.337 0.45 0.45 16.126 3.60377 4.38142 28.00 1502.12 1020.346 0.75 0.75 16.084 3.60388 4.38601 28.03 1502.03 1020.380 1.05 1.05 15.981 3.60268 4.39552 28.09 1501.79 1020.451 1.35 1.35 15.750 3.59974 4.41685 28.23 1501.22 1020.608 1.65 1.65 15.434 3.59275 4.44276 28.40 1500.41 1020.804 1.95 1.95 15.425 3.59038 4.44081 28.38 1500.37 1020.796 2.25 2.25 15.450 3.59191 4.43994 28.38 1500.45 1020.789 2.55 2.55 15.359 3.59192 4.44994 28.44 1500.24 1020.859 2.85 2.85 15.305 3.59145 4.45539 28.48 1500.12 1020.899 3.15 3.15 15.232 3.59030 4.46205 28.52 1499.94 1020.949 3.45 3.45 15.097 3.59016 4.47684 28.62 1499.62 1021.053 3.75 3.75 14.958 3.58507 4.48608 28.67 1499.24 1021.127 4.05 4.04 14.808 3.58452 4.50223 28.78 1498.89 1021.240 4.35 4.34 14.663 3.58843 4.52370 28.92 1498.59 1021.381 4.65 4.64 14.436 3.59273 4.55519 29.13 1498.09 1021.589 4.95 4.94 14.001 3.59751 4.61211 29.50 1497.11 1021.965 5.25 5.24 13.489 3.60170 4.67887 29.94 1495.93 1022.403 5.55 5.54 13.095 3.60183 4.72742 30.25 1494.98 1022.722 5.85 5.84 12.651 3.59997 4.78073 30.59 1493.88 1023.071 6.15 6.14 12.448 3.59705 4.80269 30.73 1493.36 1023.217 6.45 6.44 12.359 3.59564 4.81226 30.78 1493.13 1023.281 6.75 6.74 12.214 3.59527 4.83060 30.90 1492.78 1023.399 7.05 7.04 11.987 3.59284 4.85684 31.06 1492.20 1023.569 7.35 7.33 11.847 3.59122 4.87317 31.17 1491.84 1023.675 7.65 7.63 11.680 3.58993 4.89359 31.29 1491.42 1023.806 7.95 7.93 11.645 3.58705 4.89438 31.30 1491.30 1023.815 8.25 8.23 11.633 3.58669 4.89544 31.30 1491.27 1023.823 8.55 8.53 11.571 3.58286 4.89854 31.32 1491.08 1023.848 8.85 8.83 11.418 3.58240 4.91845 31.44 1490.70 1023.973 9.15 9.13 11.378 3.58375 4.92565 31.49 1490.62 1024.018 9.45 9.42 11.373 3.58269 4.92493 31.48 1490.60 1024.016 9.75 9.72 11.366 3.58237 4.92549 31.49 1490.58 1024.021 10.05 10.02 11.352 3.58367 4.92912 31.51 1490.57 1024.044 10.35 10.32 11.341 3.58340 4.93031 31.52 1490.54 1024.052 10.65 10.62 11.332 3.58194 4.92949 31.51 1490.51 1024.050 10.95 10.92 11.314 3.57973 4.92882 31.50 1490.45 1024.049 11.25 11.22 11.278 3.58005 4.93419 31.54 1490.36 1024.083 11.55 11.52 11.232 3.57901 4.93897 31.57 1490.24 1024.115 11.85 11.81 11.217 3.57639 4.93739 31.55 1490.18 1024.109 12.15 12.11 11.187 3.57535 4.94004 31.57 1490.10 1024.128 12.45 12.41 11.122 3.57117 4.94327 31.58 1489.89 1024.152 12.75 12.71 11.079 3.56881 4.94584 31.60 1489.76 1024.172 13.05 13.01 11.026 3.56628 4.94953 31.62 1489.60 1024.198 13.35 13.31 10.963 3.56363 4.95465 31.65 1489.42 1024.233 13.65 13.61 10.936 3.56193 4.95591 31.65 1489.34 1024.243 13.95 13.90 10.910 3.55957 4.95630 31.65 1489.25 1024.249 14.25 14.20 10.882 3.55797 4.95782 31.66 1489.16 1024.261 14.55 14.50 10.869 3.55795 4.95964 31.67 1489.13 1024.273 14.85 14.80 10.850 3.55706 4.96110 31.68 1489.08 1024.284 15.15 15.10 10.832 3.55641 4.96257 31.69 1489.03 1024.295 15.45 15.40 10.791 3.55461 4.96572 31.70 1488.91 1024.317 15.75 15.70 10.714 3.55064 4.97095 31.73 1488.68 1024.353 16.05 15.99 10.677 3.54558 4.96901 31.71 1488.53 1024.347 16.35 16.29 10.642 3.54221 4.96920 31.71 1488.40 1024.352 16.65 16.59 10.589 3.53943 4.97261 31.73 1488.24 1024.376 16.95 16.89 10.551 3.53916 4.97757 31.76 1488.15 1024.407 17.25 17.19 10.524 3.53664 4.97779 31.76 1488.06 1024.412 17.55 17.49 10.509 3.53614 4.97922 31.77 1488.02 1024.422 17.85 17.79 10.488 3.53563 4.98143 31.78 1487.96 1024.437 18.15 18.08 10.470 3.53348 4.98092 31.77 1487.90 1024.437 18.45 18.38 10.433 3.53150 4.98339 31.79 1487.78 1024.455 18.75 18.68 10.394 3.52914 4.98546 31.79 1487.66 1024.470 19.05 18.98 10.377 3.52741 4.98539 31.79 1487.60 1024.472 19.35 19.28 10.354 3.52731 4.98856 31.81 1487.55 1024.493 19.65 19.58 10.348 3.52664 4.98848 31.81 1487.53 1024.494 19.95 19.88 10.343 3.52594 4.98816 31.81 1487.51 1024.494 20.25 20.17 10.335 3.52591 4.98922 31.81 1487.50 1024.501 20.55 20.47 10.331 3.52543 4.98911 31.81 1487.49 1024.502 20.85 20.77 10.323 3.52485 4.98944 31.81 1487.46 1024.506 21.15 21.07 10.321 3.52444 4.98922 31.81 1487.46 1024.506 21.45 21.37 10.322 3.52540 4.99039 31.82 1487.48 1024.514 21.75 21.67 10.321 3.52465 4.98947 31.81 1487.47 1024.510 22.05 21.96 10.319 3.52468 4.98985 31.82 1487.47 1024.514 22.35 22.26 10.309 3.52453 4.99097 31.82 1487.45 1024.522 22.65 22.56 10.304 3.52355 4.99030 31.82 1487.43 1024.520 22.95 22.86 10.302 3.52350 4.99056 31.82 1487.43 1024.523 23.25 23.16 10.298 3.52425 4.99214 31.83 1487.43 1024.533 23.55 23.46 10.284 3.52333 4.99278 31.83 1487.39 1024.539 23.85 23.76 10.282 3.52233 4.99163 31.82 1487.38 1024.534 24.15 24.05 10.278 3.52243 4.99240 31.83 1487.37 1024.540 24.45 24.35 10.268 3.52224 4.99358 31.83 1487.35 1024.548 24.75 24.65 10.266 3.52193 4.99344 31.83 1487.34 1024.549 25.05 24.95 10.258 3.52151 4.99395 31.84 1487.32 1024.553 25.35 25.25 10.257 3.52139 4.99387 31.83 1487.33 1024.554 25.65 25.55 10.253 3.52127 4.99427 31.84 1487.32 1024.558 25.95 25.85 10.237 3.52125 4.99657 31.85 1487.28 1024.573 26.25 26.14 10.220 3.51912 4.99595 31.84 1487.22 1024.572 26.55 26.44 10.207 3.51754 4.99546 31.84 1487.17 1024.571 26.85 26.74 10.191 3.51724 4.99741 31.85 1487.13 1024.585 27.15 27.04 10.189 3.51706 4.99745 31.85 1487.13 1024.586 27.45 27.34 10.179 3.51710 4.99888 31.86 1487.11 1024.596 27.75 27.64 10.168 3.51671 4.99990 31.86 1487.08 1024.604 28.05 27.93 10.164 3.51663 5.00033 31.87 1487.07 1024.608 28.35 28.23 10.146 3.51531 5.00098 31.87 1487.02 1024.614 28.65 28.53 10.118 3.51285 5.00145 31.87 1486.92 1024.619 28.95 28.83 10.115 3.51084 4.99905 31.85 1486.89 1024.608 29.25 29.13 10.088 3.50928 5.00066 31.86 1486.81 1024.620 29.55 29.43 10.070 3.50975 5.00398 31.88 1486.77 1024.640 29.85 29.73 10.065 3.50962 5.00440 31.88 1486.77 1024.644 30.15 30.02 10.055 3.50857 5.00441 31.88 1486.73 1024.646 30.45 30.32 10.049 3.50944 5.00650 31.90 1486.73 1024.659 30.75 30.62 10.052 3.50934 5.00597 31.89 1486.74 1024.657 31.05 30.92 10.052 3.50908 5.00560 31.89 1486.74 1024.657 31.35 31.22 10.045 3.50777 5.00462 31.88 1486.72 1024.653 31.65 31.52 10.030 3.50696 5.00568 31.89 1486.67 1024.661 31.95 31.81 9.975 3.50502 5.01072 31.91 1486.51 1024.694 32.38 32.25 9.952 3.50321 5.01151 31.92 1486.44 1024.701