*2026/01/16 10:37:54.18 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/05/09 15:47:56.000 END TIME : UTC 2025/05/09 15:48:21.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 127 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 38.04 2 Depth metres 0.15 37.86 3 Temperature 'deg C (ITS90)' 9.179 12.698 4 Conductivity S/m 3.01583 3.45196 5 Conductance:Specific S/m 4 5.0464 6 Salinity PSS-78 25.12 32.06 7 Speed:Sound m/s 1483.4 1489.84 8 Density kg/m^3 1018.806 1024.957 $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 : 149 LATITUDE : 48 52.74740 N ! (deg min) LONGITUDE : 125 7.74150 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250509_154756 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:30 127 127 MERGEHDR 1.3 2026/01/16 10:35:44 127 127 HDREDIT2 3.2 2026/01/16 10:36:15 ? ? REMOVECH 8.2 2026/01/16 10:36:41 127 127 CALIB 12.1 2026/01/16 10:37:17 127 127 CLEAN 5.3 2026/01/16 10:37:54 127 127 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:15 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 10:36:41 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:17 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 12.698 3.01583 4.00000 25.12 1487.48 1018.806 0.45 0.45 12.570 3.01650 4.01454 25.21 1487.15 1018.900 0.75 0.75 12.446 3.02083 4.03354 25.33 1486.87 1019.018 1.05 1.05 12.306 3.04880 4.08616 25.68 1486.81 1019.318 1.35 1.35 12.268 3.06884 4.11724 25.90 1486.93 1019.491 1.65 1.65 12.234 3.16304 4.24752 26.80 1487.89 1020.197 1.95 1.95 12.247 3.23237 4.33905 27.44 1488.70 1020.691 2.25 2.25 12.230 3.32059 4.45955 28.28 1489.65 1021.348 2.55 2.55 12.160 3.35340 4.51210 28.65 1489.84 1021.643 2.85 2.85 12.022 3.37035 4.55185 28.91 1489.68 1021.876 3.15 3.15 11.902 3.38312 4.58388 29.13 1489.53 1022.065 3.45 3.45 11.754 3.39079 4.61288 29.32 1489.24 1022.240 3.75 3.75 11.577 3.39961 4.64722 29.54 1488.90 1022.447 4.05 4.04 11.403 3.41171 4.68599 29.80 1488.60 1022.677 4.35 4.34 11.221 3.41868 4.71923 30.01 1488.22 1022.878 4.65 4.64 11.032 3.42286 4.74973 30.21 1487.79 1023.063 4.95 4.94 10.867 3.42455 4.77400 30.36 1487.39 1023.212 5.25 5.24 10.693 3.42402 4.79644 30.50 1486.94 1023.350 5.55 5.54 10.480 3.42185 4.82229 30.66 1486.37 1023.510 5.85 5.84 10.250 3.42236 4.85445 30.86 1485.79 1023.705 6.15 6.14 10.067 3.42257 4.88001 31.01 1485.33 1023.859 6.45 6.44 9.906 3.41804 4.89609 31.11 1484.86 1023.959 6.75 6.73 9.785 3.41546 4.90937 31.19 1484.52 1024.041 7.05 7.03 9.688 3.41377 4.92069 31.25 1484.25 1024.110 7.35 7.33 9.615 3.41193 4.92837 31.30 1484.04 1024.158 7.65 7.63 9.555 3.41120 4.93591 31.34 1483.88 1024.204 7.95 7.93 9.507 3.41090 4.94229 31.38 1483.76 1024.243 8.25 8.23 9.475 3.41111 4.94721 31.41 1483.68 1024.273 8.55 8.53 9.452 3.41143 4.95095 31.43 1483.63 1024.296 8.85 8.82 9.430 3.41184 4.95477 31.46 1483.59 1024.320 9.15 9.12 9.409 3.41313 4.95962 31.49 1483.55 1024.349 9.45 9.42 9.392 3.41336 4.96242 31.51 1483.52 1024.366 9.75 9.72 9.381 3.41423 4.96532 31.52 1483.50 1024.384 10.05 10.02 9.371 3.41368 4.96599 31.53 1483.47 1024.389 10.35 10.32 9.353 3.41412 4.96918 31.55 1483.44 1024.409 10.65 10.62 9.339 3.41476 4.97208 31.57 1483.41 1024.427 10.95 10.91 9.334 3.41415 4.97201 31.57 1483.40 1024.428 11.25 11.21 9.329 3.41518 4.97412 31.58 1483.40 1024.441 11.55 11.51 9.325 3.41698 4.97733 31.60 1483.42 1024.460 11.85 11.81 9.323 3.41688 4.97753 31.60 1483.42 1024.463 12.15 12.11 9.318 3.41801 4.97985 31.62 1483.42 1024.477 12.45 12.41 9.316 3.41890 4.98155 31.63 1483.43 1024.488 12.75 12.71 9.314 3.42034 4.98384 31.64 1483.45 1024.502 13.05 13.00 9.313 3.42014 4.98367 31.64 1483.45 1024.502 13.35 13.30 9.310 3.42114 4.98567 31.66 1483.46 1024.515 13.65 13.60 9.308 3.42049 4.98503 31.65 1483.45 1024.513 13.95 13.90 9.307 3.42152 4.98668 31.66 1483.47 1024.523 14.25 14.20 9.306 3.42213 4.98768 31.67 1483.48 1024.530 14.55 14.50 9.307 3.42304 4.98890 31.68 1483.49 1024.538 14.85 14.79 9.307 3.42385 4.99007 31.69 1483.51 1024.545 15.15 15.09 9.308 3.42495 4.99148 31.70 1483.53 1024.554 15.45 15.39 9.310 3.42629 4.99309 31.71 1483.56 1024.564 15.75 15.69 9.314 3.42603 4.99223 31.70 1483.57 1024.561 16.05 15.99 9.315 3.42792 4.99477 31.72 1483.60 1024.576 16.35 16.29 9.316 3.42852 4.99548 31.73 1483.62 1024.581 16.65 16.59 9.316 3.42943 4.99679 31.73 1483.63 1024.589 16.95 16.88 9.318 3.43046 4.99802 31.74 1483.66 1024.597 17.25 17.18 9.322 3.43085 4.99810 31.74 1483.68 1024.599 17.55 17.48 9.324 3.43189 4.99918 31.75 1483.70 1024.606 17.85 17.78 9.327 3.43239 4.99960 31.76 1483.72 1024.609 18.15 18.08 9.326 3.43310 5.00072 31.76 1483.73 1024.617 18.45 18.38 9.328 3.43333 5.00075 31.76 1483.74 1024.618 18.75 18.68 9.330 3.43428 5.00193 31.77 1483.76 1024.626 19.05 18.97 9.331 3.43523 5.00302 31.78 1483.78 1024.633 19.35 19.27 9.336 3.43535 5.00261 31.78 1483.80 1024.632 19.65 19.57 9.343 3.43559 5.00190 31.77 1483.83 1024.629 19.95 19.87 9.350 3.43984 5.00705 31.81 1483.90 1024.658 20.25 20.17 9.355 3.44260 5.01038 31.83 1483.96 1024.678 20.55 20.47 9.360 3.44366 5.01115 31.84 1483.99 1024.683 20.85 20.76 9.367 3.44447 5.01136 31.84 1484.02 1024.685 21.15 21.06 9.373 3.44535 5.01170 31.85 1484.05 1024.688 21.45 21.36 9.377 3.44593 5.01191 31.85 1484.08 1024.690 21.75 21.66 9.380 3.44663 5.01252 31.85 1484.10 1024.694 22.05 21.96 9.383 3.44729 5.01307 31.86 1484.12 1024.699 22.35 22.26 9.384 3.44842 5.01454 31.87 1484.14 1024.708 22.65 22.55 9.384 3.44854 5.01470 31.87 1484.15 1024.710 22.95 22.85 9.383 3.44934 5.01605 31.88 1484.16 1024.719 23.25 23.15 9.382 3.45009 5.01734 31.89 1484.17 1024.727 23.55 23.45 9.382 3.45055 5.01802 31.89 1484.18 1024.732 23.85 23.75 9.380 3.45018 5.01775 31.89 1484.17 1024.732 24.15 24.05 9.375 3.45069 5.01915 31.90 1484.17 1024.741 24.45 24.35 9.370 3.45059 5.01973 31.90 1484.16 1024.746 24.75 24.64 9.367 3.45086 5.02067 31.91 1484.16 1024.753 25.05 24.94 9.362 3.45119 5.02182 31.91 1484.16 1024.761 25.35 25.24 9.357 3.45143 5.02286 31.92 1484.15 1024.768 25.65 25.54 9.350 3.45171 5.02428 31.93 1484.14 1024.777 25.95 25.84 9.344 3.45196 5.02559 31.94 1484.14 1024.786 26.25 26.14 9.336 3.45111 5.02548 31.94 1484.11 1024.787 26.55 26.43 9.327 3.44983 5.02488 31.93 1484.08 1024.785 26.85 26.73 9.322 3.44890 5.02430 31.93 1484.06 1024.784 27.15 27.03 9.315 3.44947 5.02617 31.94 1484.05 1024.796 27.45 27.33 9.308 3.44951 5.02725 31.94 1484.04 1024.803 27.75 27.63 9.305 3.44938 5.02748 31.94 1484.03 1024.806 28.05 27.93 9.305 3.45022 5.02877 31.95 1484.05 1024.814 28.35 28.23 9.303 3.45129 5.03054 31.97 1484.06 1024.825 28.65 28.52 9.298 3.45177 5.03202 31.98 1484.06 1024.835 28.95 28.82 9.296 3.45189 5.03245 31.98 1484.06 1024.839 29.25 29.12 9.293 3.45147 5.03225 31.98 1484.05 1024.839 29.55 29.42 9.286 3.45168 5.03367 31.98 1484.04 1024.849 29.85 29.72 9.280 3.45067 5.03304 31.98 1484.02 1024.847 30.15 30.02 9.275 3.45047 5.03357 31.98 1484.00 1024.851 30.45 30.31 9.266 3.45079 5.03534 31.99 1483.99 1024.863 30.75 30.61 9.258 3.45038 5.03582 32.00 1483.97 1024.867 31.05 30.91 9.254 3.45021 5.03625 32.00 1483.96 1024.871 31.35 31.21 9.249 3.44997 5.03658 32.00 1483.95 1024.874 31.65 31.51 9.239 3.45019 5.03836 32.01 1483.93 1024.885 31.95 31.81 9.230 3.45030 5.03991 32.02 1483.91 1024.896 32.25 32.10 9.225 3.45051 5.04098 32.03 1483.91 1024.903 32.55 32.40 9.219 3.45023 5.04138 32.03 1483.90 1024.907 32.85 32.70 9.215 3.45075 5.04277 32.04 1483.90 1024.916 33.15 33.00 9.209 3.45007 5.04262 32.04 1483.88 1024.917 33.45 33.30 9.207 3.45025 5.04318 32.04 1483.88 1024.921 33.75 33.60 9.207 3.45000 5.04289 32.04 1483.88 1024.921 34.05 33.89 9.207 3.45029 5.04327 32.04 1483.89 1024.924 34.35 34.19 9.208 3.45052 5.04348 32.04 1483.90 1024.927 34.65 34.49 9.208 3.45075 5.04380 32.04 1483.91 1024.930 34.95 34.79 9.207 3.45108 5.04436 32.05 1483.91 1024.934 35.25 35.09 9.207 3.45083 5.04404 32.04 1483.92 1024.933 35.55 35.39 9.204 3.45058 5.04410 32.04 1483.91 1024.935 35.85 35.69 9.201 3.45068 5.04469 32.05 1483.91 1024.940 36.15 35.98 9.198 3.44983 5.04397 32.04 1483.89 1024.937 36.45 36.28 9.197 3.45063 5.04526 32.05 1483.91 1024.946 36.75 36.58 9.195 3.44997 5.04460 32.05 1483.90 1024.943 37.05 36.88 9.193 3.45025 5.04529 32.05 1483.90 1024.949 37.35 37.18 9.191 3.45083 5.04640 32.06 1483.91 1024.956 37.65 37.48 9.179 3.44945 5.04622 32.05 1483.86 1024.957 38.04 37.86 9.185 3.44705 5.04175 32.02 1483.85 1024.934