*2026/01/16 10:37:47.95 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/02/19 19:52:36.000 END TIME : UTC 2025/02/19 19:53:03.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 136 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 40.55 2 Depth metres 0.15 40.36 3 Temperature 'deg C (ITS90)' 9.317 10.273 4 Conductivity S/m 3.30911 3.5139 5 Conductance:Specific S/m 4.8109 5.00473 6 Salinity PSS-78 30.45 31.88 7 Speed:Sound m/s 1482.05 1487.32 8 Density kg/m^3 1023.495 1024.693 $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 : 52 LATITUDE : 49 43.97570 N ! (deg min) LONGITUDE : 126 27.39200 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250219_195236 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:25 136 136 MERGEHDR 1.3 2026/01/16 10:35:39 136 136 HDREDIT2 3.2 2026/01/16 10:36:09 ? ? REMOVECH 8.2 2026/01/16 10:36:37 136 136 CALIB 12.1 2026/01/16 10:37:11 136 136 CLEAN 5.3 2026/01/16 10:37:47 136 136 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:09 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 10:36:37 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:11 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 9.392 3.30911 4.81090 30.45 1482.07 1023.495 0.45 0.45 9.425 3.31255 4.81120 30.45 1482.20 1023.496 0.75 0.75 9.377 3.31487 4.82137 30.52 1482.11 1023.556 1.05 1.05 9.345 3.31695 4.82883 30.56 1482.05 1023.599 1.35 1.34 9.345 3.33263 4.85171 30.72 1482.25 1023.726 1.65 1.64 9.330 3.33973 4.86420 30.81 1482.31 1023.797 1.95 1.94 9.317 3.33969 4.86600 30.82 1482.28 1023.808 2.25 2.24 9.327 3.34025 4.86531 30.82 1482.32 1023.805 2.55 2.54 9.344 3.34139 4.86465 30.82 1482.38 1023.802 2.85 2.84 9.357 3.34498 4.86797 30.84 1482.46 1023.821 3.15 3.14 9.363 3.34680 4.86974 30.85 1482.51 1023.832 3.45 3.44 9.366 3.34697 4.86964 30.85 1482.52 1023.832 3.75 3.73 9.368 3.34709 4.86949 30.85 1482.53 1023.833 4.05 4.03 9.372 3.34693 4.86867 30.85 1482.55 1023.829 4.35 4.33 9.373 3.34760 4.86945 30.85 1482.56 1023.835 4.65 4.63 9.376 3.34831 4.87014 30.86 1482.58 1023.840 4.95 4.93 9.378 3.34911 4.87103 30.86 1482.60 1023.846 5.25 5.23 9.379 3.34980 4.87182 30.87 1482.62 1023.851 5.55 5.53 9.380 3.35199 4.87493 30.89 1482.65 1023.870 5.85 5.82 9.382 3.35314 4.87627 30.90 1482.68 1023.878 6.15 6.12 9.384 3.35360 4.87670 30.90 1482.69 1023.882 6.45 6.42 9.385 3.35455 4.87795 30.91 1482.71 1023.890 6.75 6.72 9.386 3.35588 4.87977 30.93 1482.74 1023.901 7.05 7.02 9.400 3.36461 4.89040 31.00 1482.89 1023.960 7.35 7.32 9.422 3.37408 4.90112 31.08 1483.07 1024.019 7.65 7.62 9.439 3.37655 4.90228 31.09 1483.15 1024.025 7.95 7.92 9.452 3.37766 4.90197 31.09 1483.20 1024.024 8.25 8.21 9.461 3.37890 4.90246 31.09 1483.25 1024.028 8.55 8.51 9.472 3.37999 4.90249 31.10 1483.29 1024.029 8.85 8.81 9.487 3.38219 4.90359 31.11 1483.36 1024.035 9.15 9.11 9.504 3.38334 4.90280 31.10 1483.43 1024.031 9.45 9.41 9.522 3.38727 4.90596 31.13 1483.53 1024.049 9.75 9.71 9.541 3.39187 4.90986 31.16 1483.64 1024.070 10.05 10.01 9.566 3.39386 4.90924 31.15 1483.74 1024.067 10.35 10.30 9.587 3.40593 4.92366 31.26 1483.95 1024.146 10.65 10.60 9.610 3.40789 4.92323 31.26 1484.03 1024.144 10.95 10.90 9.641 3.41188 4.92455 31.27 1484.17 1024.151 11.25 11.20 9.668 3.41649 4.92750 31.30 1484.30 1024.167 11.55 11.50 9.690 3.42026 4.92970 31.31 1484.41 1024.179 11.85 11.80 9.710 3.42289 4.93074 31.32 1484.50 1024.185 12.15 12.10 9.725 3.42484 4.93134 31.33 1484.57 1024.188 12.45 12.39 9.744 3.42592 4.93026 31.33 1484.63 1024.182 12.75 12.69 9.761 3.42631 4.92840 31.31 1484.69 1024.172 13.05 12.99 9.782 3.43012 4.93095 31.33 1484.79 1024.187 13.35 13.29 9.811 3.43340 4.93142 31.34 1484.91 1024.188 13.65 13.59 9.854 3.44151 4.93697 31.39 1485.13 1024.218 13.95 13.89 9.900 3.45077 4.94375 31.44 1485.37 1024.253 14.25 14.19 9.940 3.45591 4.94556 31.46 1485.54 1024.262 14.55 14.48 9.978 3.45853 4.94381 31.45 1485.67 1024.251 14.85 14.78 10.011 3.46254 4.94491 31.46 1485.81 1024.257 15.15 15.08 10.043 3.46563 4.94483 31.47 1485.94 1024.255 15.45 15.38 10.079 3.47098 4.94742 31.49 1486.10 1024.268 15.75 15.68 10.124 3.47931 4.95289 31.53 1486.32 1024.297 16.05 15.98 10.164 3.48564 4.95631 31.56 1486.50 1024.314 16.35 16.28 10.180 3.48765 4.95688 31.57 1486.57 1024.318 16.65 16.57 10.181 3.48641 4.95501 31.55 1486.57 1024.308 16.95 16.87 10.178 3.48547 4.95399 31.55 1486.55 1024.304 17.25 17.17 10.177 3.48570 4.95445 31.55 1486.56 1024.308 17.55 17.47 10.177 3.48541 4.95407 31.55 1486.56 1024.307 17.85 17.77 10.177 3.48538 4.95406 31.55 1486.56 1024.309 18.15 18.07 10.176 3.48569 4.95464 31.55 1486.57 1024.313 18.45 18.37 10.173 3.48530 4.95445 31.55 1486.56 1024.313 18.75 18.66 10.174 3.48517 4.95420 31.55 1486.57 1024.313 19.05 18.96 10.177 3.48619 4.95527 31.55 1486.59 1024.320 19.35 19.26 10.175 3.48821 4.95832 31.58 1486.62 1024.339 19.65 19.56 10.172 3.48852 4.95916 31.58 1486.62 1024.345 19.95 19.86 10.171 3.48822 4.95899 31.58 1486.61 1024.345 20.25 20.16 10.173 3.48791 4.95824 31.57 1486.62 1024.342 20.55 20.46 10.180 3.48839 4.95791 31.57 1486.65 1024.341 20.85 20.75 10.184 3.49052 4.96042 31.59 1486.69 1024.356 21.15 21.05 10.188 3.49146 4.96114 31.60 1486.72 1024.361 21.45 21.35 10.194 3.49265 4.96205 31.60 1486.75 1024.367 21.75 21.65 10.207 3.49591 4.96477 31.62 1486.83 1024.382 22.05 21.95 10.217 3.49740 4.96544 31.63 1486.88 1024.386 22.35 22.25 10.225 3.49896 4.96662 31.64 1486.92 1024.393 22.65 22.54 10.237 3.49970 4.96599 31.64 1486.97 1024.391 22.95 22.84 10.243 3.49956 4.96484 31.63 1486.99 1024.385 23.25 23.14 10.248 3.50021 4.96518 31.63 1487.01 1024.388 23.55 23.44 10.253 3.49973 4.96371 31.62 1487.02 1024.380 23.85 23.74 10.252 3.50044 4.96494 31.63 1487.03 1024.389 24.15 24.04 10.254 3.50255 4.96759 31.65 1487.07 1024.404 24.45 24.34 10.258 3.50358 4.96848 31.66 1487.10 1024.410 24.75 24.63 10.257 3.50367 4.96877 31.66 1487.10 1024.413 25.05 24.93 10.256 3.50297 4.96789 31.65 1487.09 1024.410 25.35 25.23 10.257 3.50290 4.96772 31.65 1487.10 1024.410 25.65 25.53 10.255 3.50276 4.96772 31.65 1487.10 1024.411 25.95 25.83 10.256 3.50313 4.96816 31.65 1487.11 1024.415 26.25 26.13 10.259 3.50341 4.96810 31.65 1487.13 1024.416 26.55 26.43 10.261 3.50466 4.96964 31.66 1487.15 1024.425 26.85 26.72 10.261 3.50534 4.97055 31.67 1487.16 1024.432 27.15 27.02 10.264 3.50621 4.97136 31.68 1487.19 1024.437 27.45 27.32 10.267 3.50756 4.97283 31.69 1487.22 1024.446 27.75 27.62 10.271 3.50864 4.97384 31.69 1487.24 1024.453 28.05 27.92 10.273 3.51069 4.97651 31.71 1487.28 1024.469 28.35 28.22 10.272 3.51136 4.97757 31.72 1487.29 1024.476 28.65 28.51 10.269 3.51235 4.97940 31.73 1487.30 1024.487 28.95 28.81 10.268 3.51258 4.97978 31.73 1487.30 1024.491 29.25 29.11 10.267 3.51316 4.98082 31.74 1487.31 1024.498 29.55 29.41 10.264 3.51324 4.98133 31.74 1487.31 1024.502 29.85 29.71 10.263 3.51376 4.98219 31.75 1487.32 1024.508 30.15 30.01 10.257 3.51381 4.98311 31.76 1487.31 1024.515 30.45 30.31 10.252 3.51300 4.98272 31.75 1487.29 1024.514 30.75 30.60 10.243 3.51366 4.98488 31.77 1487.28 1024.528 31.05 30.90 10.232 3.51323 4.98587 31.77 1487.25 1024.536 31.35 31.20 10.222 3.51390 4.98822 31.79 1487.24 1024.551 31.65 31.50 10.208 3.51375 4.98996 31.80 1487.21 1024.562 31.95 31.80 10.197 3.51284 4.99032 31.80 1487.17 1024.567 32.25 32.10 10.194 3.51257 4.99027 31.80 1487.17 1024.568 32.55 32.40 10.188 3.51282 4.99157 31.81 1487.16 1024.577 32.85 32.69 10.181 3.51308 4.99287 31.81 1487.15 1024.585 33.15 32.99 10.178 3.51324 4.99347 31.82 1487.15 1024.590 33.45 33.29 10.175 3.51332 4.99408 31.82 1487.15 1024.595 33.75 33.59 10.171 3.51288 4.99403 31.82 1487.14 1024.596 34.05 33.89 10.169 3.51230 4.99353 31.82 1487.13 1024.595 34.35 34.19 10.165 3.51204 4.99362 31.82 1487.12 1024.597 34.65 34.48 10.163 3.51215 4.99403 31.82 1487.12 1024.601 34.95 34.78 10.159 3.51164 4.99397 31.82 1487.11 1024.602 35.25 35.08 10.157 3.51241 4.99527 31.83 1487.12 1024.610 35.55 35.38 10.153 3.51246 4.99594 31.83 1487.11 1024.616 35.85 35.68 10.144 3.51321 4.99828 31.85 1487.11 1024.630 36.15 35.98 10.140 3.51187 4.99693 31.84 1487.08 1024.624 36.45 36.28 10.139 3.51140 4.99649 31.83 1487.08 1024.623 36.75 36.57 10.137 3.51081 4.99596 31.83 1487.07 1024.622 37.05 36.87 10.128 3.51124 4.99775 31.84 1487.06 1024.634 37.35 37.17 10.123 3.51190 4.99937 31.85 1487.06 1024.644 37.65 37.47 10.120 3.51181 4.99977 31.85 1487.05 1024.648 37.95 37.77 10.118 3.51048 4.99817 31.84 1487.04 1024.640 38.25 38.07 10.113 3.51047 4.99887 31.85 1487.03 1024.646 38.55 38.36 10.108 3.51075 4.99988 31.85 1487.03 1024.653 38.85 38.66 10.105 3.51051 4.99998 31.85 1487.02 1024.655 39.15 38.96 10.096 3.50911 4.99933 31.85 1486.98 1024.653 39.45 39.26 10.079 3.50762 4.99955 31.85 1486.93 1024.657 39.75 39.56 10.062 3.50788 5.00236 31.86 1486.89 1024.675 40.05 39.86 10.050 3.50818 5.00457 31.88 1486.87 1024.689 40.35 40.16 10.043 3.50725 5.00421 31.87 1486.85 1024.689 40.55 40.36 10.039 3.50726 5.00473 31.88 1486.84 1024.693