*2026/01/16 10:37:57.98 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/07/22 15:27:25.000 END TIME : UTC 2025/07/22 15:27:54.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 147 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 44.05 2 Depth metres 0.15 43.83 3 Temperature 'deg C (ITS90)' 9.101 16.823 4 Conductivity S/m 3.45301 3.9157 5 Conductance:Specific S/m 4.67062 5.06421 6 Salinity PSS-78 30.1 32.17 7 Speed:Sound m/s 1483.73 1506.68 8 Density kg/m^3 1021.798 1025.083 $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 : 221 LATITUDE : 49 53.30570 N ! (deg min) LONGITUDE : 126 47.79980 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250722_152725 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:34 147 147 MERGEHDR 1.3 2026/01/16 10:35:48 147 147 HDREDIT2 3.2 2026/01/16 10:36:19 ? ? REMOVECH 8.2 2026/01/16 10:36:51 147 147 CALIB 12.1 2026/01/16 10:37:22 147 147 CLEAN 5.3 2026/01/16 10:37:57 147 147 $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 16.823 3.90676 4.67062 30.10 1506.68 1021.798 0.45 0.45 16.762 3.90658 4.67717 30.14 1506.55 1021.847 0.75 0.75 16.689 3.90089 4.67856 30.15 1506.34 1021.869 1.05 1.05 16.663 3.89895 4.67911 30.15 1506.27 1021.878 1.35 1.35 16.605 3.89952 4.68637 30.20 1506.15 1021.930 1.65 1.65 16.559 3.90973 4.70387 30.32 1506.15 1022.036 1.95 1.95 16.590 3.91182 4.70279 30.32 1506.25 1022.026 2.25 2.24 16.597 3.91318 4.70372 30.32 1506.28 1022.031 2.55 2.54 16.544 3.91570 4.71275 30.38 1506.20 1022.091 2.85 2.84 16.515 3.91306 4.71282 30.38 1506.11 1022.098 3.15 3.14 16.508 3.91249 4.71298 30.38 1506.09 1022.102 3.45 3.44 16.474 3.91027 4.71412 30.39 1506.00 1022.115 3.75 3.74 16.401 3.91118 4.72356 30.45 1505.85 1022.182 4.05 4.04 16.271 3.90676 4.73305 30.51 1505.53 1022.259 4.35 4.34 16.128 3.89739 4.73810 30.54 1505.12 1022.313 4.65 4.64 15.963 3.89438 4.75355 30.64 1504.73 1022.429 4.95 4.94 15.667 3.88106 4.77170 30.75 1503.93 1022.581 5.25 5.24 15.241 3.85411 4.78877 30.85 1502.70 1022.747 5.55 5.53 14.890 3.81399 4.78068 30.77 1501.49 1022.760 5.85 5.83 14.566 3.78158 4.77882 30.73 1500.41 1022.801 6.15 6.13 14.122 3.72108 4.75578 30.53 1498.73 1022.741 6.45 6.43 13.610 3.70535 4.79846 30.80 1497.36 1023.049 6.75 6.73 13.257 3.68812 4.82022 30.92 1496.34 1023.217 7.05 7.03 12.952 3.67939 4.84746 31.09 1495.52 1023.407 7.35 7.33 12.698 3.65498 4.84772 31.07 1494.64 1023.441 7.65 7.63 12.429 3.63954 4.86198 31.14 1493.82 1023.552 7.95 7.93 12.090 3.62663 4.88896 31.30 1492.85 1023.739 8.25 8.22 11.776 3.60726 4.90441 31.38 1491.86 1023.859 8.55 8.52 11.463 3.59460 4.92912 31.52 1490.95 1024.027 8.85 8.82 11.186 3.57000 4.93279 31.52 1489.98 1024.074 9.15 9.12 11.007 3.55030 4.93007 31.48 1489.30 1024.076 9.45 9.42 10.810 3.53714 4.93870 31.52 1488.66 1024.141 9.75 9.72 10.633 3.52036 4.93973 31.50 1488.02 1024.162 10.05 10.02 10.445 3.51139 4.95326 31.58 1487.44 1024.252 10.35 10.31 10.181 3.50281 4.97821 31.72 1486.67 1024.410 10.65 10.61 10.000 3.49632 4.99471 31.81 1486.13 1024.514 10.95 10.91 9.929 3.48989 4.99568 31.81 1485.87 1024.525 11.25 11.21 9.841 3.48744 5.00485 31.86 1485.62 1024.582 11.55 11.51 9.770 3.48336 5.00916 31.89 1485.40 1024.612 11.85 11.81 9.735 3.48304 5.01367 31.91 1485.31 1024.640 12.15 12.11 9.685 3.48115 5.01823 31.94 1485.16 1024.669 12.45 12.40 9.639 3.47975 5.02285 31.96 1485.03 1024.698 12.75 12.70 9.614 3.47755 5.02327 31.96 1484.94 1024.703 13.05 13.00 9.585 3.47491 5.02379 31.96 1484.84 1024.709 13.35 13.30 9.556 3.47178 5.02345 31.96 1484.73 1024.710 13.65 13.60 9.539 3.47087 5.02464 31.96 1484.68 1024.719 13.95 13.90 9.518 3.47058 5.02715 31.98 1484.63 1024.735 14.25 14.19 9.509 3.47126 5.02957 31.99 1484.62 1024.750 14.55 14.49 9.505 3.47171 5.03071 32.00 1484.62 1024.758 14.85 14.79 9.504 3.47237 5.03191 32.01 1484.63 1024.766 15.15 15.09 9.509 3.47348 5.03279 32.02 1484.66 1024.772 15.45 15.39 9.514 3.47369 5.03231 32.01 1484.68 1024.770 15.75 15.69 9.515 3.47404 5.03266 32.02 1484.69 1024.773 16.05 15.98 9.516 3.47421 5.03271 32.02 1484.70 1024.775 16.35 16.28 9.512 3.47521 5.03479 32.03 1484.71 1024.788 16.65 16.58 9.492 3.47443 5.03658 32.04 1484.65 1024.800 16.95 16.88 9.473 3.47142 5.03492 32.03 1484.57 1024.793 17.25 17.18 9.454 3.47021 5.03601 32.03 1484.51 1024.801 17.55 17.48 9.432 3.46744 5.03524 32.02 1484.42 1024.799 17.85 17.77 9.416 3.46700 5.03688 32.03 1484.38 1024.811 18.15 18.07 9.399 3.46594 5.03788 32.04 1484.33 1024.818 18.45 18.37 9.378 3.46548 5.04024 32.05 1484.28 1024.833 18.75 18.67 9.364 3.46380 5.03984 32.04 1484.22 1024.833 19.05 18.97 9.355 3.46337 5.04049 32.05 1484.20 1024.839 19.35 19.27 9.348 3.46362 5.04197 32.06 1484.19 1024.848 19.65 19.57 9.343 3.46418 5.04355 32.07 1484.19 1024.859 19.95 19.86 9.344 3.46430 5.04358 32.07 1484.20 1024.860 20.25 20.16 9.342 3.46408 5.04353 32.07 1484.19 1024.861 20.55 20.46 9.339 3.46447 5.04454 32.07 1484.19 1024.868 20.85 20.76 9.335 3.46483 5.04559 32.08 1484.19 1024.875 21.15 21.06 9.333 3.46477 5.04579 32.08 1484.19 1024.878 21.45 21.36 9.327 3.46401 5.04563 32.08 1484.17 1024.878 21.75 21.65 9.321 3.46381 5.04626 32.08 1484.16 1024.883 22.05 21.95 9.316 3.46254 5.04507 32.07 1484.14 1024.878 22.35 22.25 9.312 3.46223 5.04529 32.07 1484.12 1024.881 22.65 22.55 9.303 3.46242 5.04685 32.08 1484.11 1024.891 22.95 22.85 9.299 3.46182 5.04652 32.08 1484.10 1024.891 23.25 23.15 9.295 3.46156 5.04679 32.08 1484.09 1024.894 23.55 23.44 9.290 3.46178 5.04782 32.09 1484.08 1024.901 23.85 23.74 9.285 3.46194 5.04880 32.09 1484.08 1024.908 24.15 24.04 9.278 3.46155 5.04921 32.10 1484.06 1024.912 24.45 24.34 9.265 3.46069 5.04985 32.10 1484.02 1024.917 24.75 24.64 9.255 3.46002 5.05038 32.10 1483.99 1024.922 25.05 24.94 9.247 3.45940 5.05060 32.10 1483.97 1024.925 25.35 25.23 9.243 3.45902 5.05064 32.10 1483.96 1024.926 25.65 25.53 9.239 3.45903 5.05132 32.10 1483.95 1024.932 25.95 25.83 9.235 3.45931 5.05237 32.11 1483.95 1024.939 26.25 26.13 9.231 3.45916 5.05271 32.11 1483.94 1024.942 26.55 26.43 9.228 3.45936 5.05337 32.12 1483.94 1024.947 26.85 26.73 9.228 3.45996 5.05422 32.12 1483.95 1024.953 27.15 27.02 9.228 3.45889 5.05274 32.11 1483.94 1024.946 27.45 27.32 9.223 3.45866 5.05314 32.11 1483.93 1024.950 27.75 27.62 9.220 3.45895 5.05405 32.12 1483.93 1024.956 28.05 27.92 9.225 3.45872 5.05295 32.11 1483.95 1024.951 28.35 28.22 9.214 3.45880 5.05471 32.12 1483.92 1024.963 28.65 28.52 9.208 3.45872 5.05540 32.13 1483.91 1024.968 28.95 28.81 9.212 3.45937 5.05582 32.13 1483.94 1024.972 29.25 29.11 9.219 3.45894 5.05417 32.12 1483.95 1024.964 29.55 29.41 9.214 3.45878 5.05468 32.12 1483.94 1024.968 29.85 29.71 9.202 3.45763 5.05476 32.12 1483.90 1024.970 30.15 30.01 9.194 3.45822 5.05673 32.13 1483.89 1024.983 30.45 30.31 9.210 3.45890 5.05546 32.13 1483.95 1024.976 30.75 30.60 9.193 3.45671 5.05468 32.12 1483.88 1024.974 31.05 30.90 9.162 3.45540 5.05733 32.13 1483.79 1024.991 31.35 31.20 9.145 3.45456 5.05870 32.14 1483.74 1025.001 31.65 31.50 9.139 3.45459 5.05959 32.15 1483.73 1025.007 31.95 31.80 9.139 3.45467 5.05977 32.15 1483.73 1025.009 32.25 32.10 9.142 3.45500 5.05968 32.15 1483.75 1025.010 32.55 32.39 9.141 3.45509 5.06001 32.15 1483.76 1025.013 32.85 32.69 9.137 3.45460 5.05994 32.15 1483.74 1025.014 33.15 32.99 9.134 3.45512 5.06108 32.16 1483.75 1025.022 33.45 33.29 9.130 3.45427 5.06045 32.15 1483.73 1025.020 33.75 33.59 9.127 3.45428 5.06085 32.15 1483.73 1025.023 34.05 33.89 9.127 3.45435 5.06098 32.15 1483.73 1025.025 34.35 34.18 9.127 3.45375 5.06016 32.15 1483.73 1025.022 34.65 34.48 9.127 3.45401 5.06050 32.15 1483.74 1025.025 34.95 34.78 9.126 3.45421 5.06094 32.15 1483.74 1025.029 35.25 35.08 9.127 3.45402 5.06061 32.15 1483.75 1025.028 35.55 35.38 9.128 3.45420 5.06063 32.15 1483.76 1025.030 35.85 35.68 9.127 3.45390 5.06031 32.15 1483.76 1025.029 36.15 35.97 9.123 3.45421 5.06140 32.15 1483.75 1025.037 36.45 36.27 9.123 3.45425 5.06151 32.16 1483.76 1025.039 36.75 36.57 9.119 3.45362 5.06115 32.15 1483.75 1025.038 37.05 36.87 9.117 3.45402 5.06203 32.16 1483.75 1025.044 37.35 37.17 9.115 3.45340 5.06140 32.15 1483.74 1025.042 37.65 37.47 9.110 3.45342 5.06218 32.16 1483.73 1025.048 37.95 37.76 9.109 3.45346 5.06233 32.16 1483.74 1025.050 38.25 38.06 9.108 3.45343 5.06250 32.16 1483.74 1025.052 38.55 38.36 9.106 3.45312 5.06237 32.16 1483.73 1025.053 38.85 38.66 9.105 3.45394 5.06362 32.17 1483.75 1025.061 39.15 38.96 9.104 3.45340 5.06303 32.16 1483.74 1025.059 39.45 39.26 9.104 3.45322 5.06285 32.16 1483.74 1025.059 39.75 39.55 9.105 3.45338 5.06279 32.16 1483.76 1025.060 40.05 39.85 9.104 3.45336 5.06300 32.16 1483.76 1025.063 40.35 40.15 9.103 3.45368 5.06353 32.16 1483.76 1025.067 40.65 40.45 9.104 3.45301 5.06251 32.16 1483.76 1025.063 40.95 40.75 9.104 3.45337 5.06293 32.16 1483.77 1025.066 41.25 41.05 9.104 3.45369 5.06349 32.16 1483.78 1025.071 41.55 41.34 9.103 3.45411 5.06421 32.17 1483.79 1025.076 41.85 41.64 9.104 3.45338 5.06304 32.16 1483.78 1025.071 42.15 41.94 9.103 3.45364 5.06349 32.16 1483.79 1025.074 42.45 42.24 9.103 3.45383 5.06388 32.17 1483.80 1025.078 42.75 42.54 9.102 3.45343 5.06335 32.16 1483.80 1025.076 43.05 42.84 9.103 3.45330 5.06304 32.16 1483.80 1025.076 43.35 43.13 9.103 3.45404 5.06415 32.17 1483.81 1025.083 43.65 43.43 9.101 3.45368 5.06388 32.17 1483.81 1025.083 44.05 43.83 9.103 3.45339 5.06311 32.16 1483.82 1025.080