*2026/01/16 09:57:47.16 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/01/30 18:51:55.000 END TIME : UTC 2024/01/30 18:52:05.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 51 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 15.12 2 Depth metres 0.15 15.13 3 Temperature 'deg C (ITS90)' 7.325 9.405 4 Conductivity S/m 0.92174 3.30826 5 Conductance:Specific S/m 1.42272 4.82941 6 Salinity PSS-78 8.01 30.55 7 Speed:Sound m/s 1446.54 1482.06 8 Density kg/m^3 1006.193 1023.667 $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 : 18 LATITUDE : 49 38.14480 N ! (deg min) LONGITUDE : 126 21.71190 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240130_185155 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:54 51 51 MERGEHDR 1.3 2026/01/16 09:53:44 51 51 HDREDIT2 3.2 2026/01/16 09:55:00 ? ? REMOVECH 8.2 2026/01/16 09:56:13 51 51 CALIB 12.1 2026/01/16 09:56:45 51 51 CLEAN 5.3 2026/01/16 09:57:47 51 51 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:00 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 09:56:13 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:45 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 7.325 0.93318 1.44346 8.13 1446.54 1006.294 0.45 0.46 7.394 0.92174 1.42272 8.01 1446.68 1006.193 0.75 0.76 7.367 0.94526 1.46021 8.23 1446.86 1006.374 1.05 1.06 7.359 0.95941 1.48244 8.37 1447.00 1006.482 1.35 1.37 7.369 0.97828 1.51112 8.54 1447.26 1006.620 1.65 1.67 7.533 1.26998 1.95184 11.27 1451.32 1008.745 1.95 1.97 7.542 1.31784 2.02483 11.73 1451.93 1009.104 2.25 2.28 7.591 1.43069 2.19491 12.80 1453.47 1009.941 2.55 2.58 7.664 1.58930 2.43277 14.32 1455.64 1011.122 2.85 2.88 7.757 1.69218 2.58295 15.28 1457.22 1011.873 3.15 3.18 7.832 1.82337 2.77684 16.54 1459.07 1012.851 3.45 3.49 8.031 1.96563 2.97547 17.85 1461.48 1013.855 3.75 3.79 8.187 2.11339 3.18408 19.24 1463.81 1014.921 4.05 4.09 8.291 2.19376 3.29486 19.98 1465.13 1015.490 4.35 4.39 8.480 2.30952 3.44911 21.02 1467.16 1016.283 4.65 4.69 8.681 2.51006 3.72622 22.90 1470.24 1017.726 4.95 4.99 8.805 2.71617 4.01740 24.89 1473.15 1019.262 5.25 5.29 8.957 2.84973 4.19609 26.13 1475.25 1020.210 5.55 5.59 9.096 3.00873 4.41216 27.63 1477.61 1021.366 5.85 5.89 9.170 3.08446 4.51338 28.34 1478.76 1021.911 6.15 6.19 9.227 3.11558 4.55139 28.61 1479.31 1022.115 6.45 6.49 9.273 3.14254 4.58451 28.85 1479.78 1022.293 6.75 6.79 9.302 3.15684 4.60159 28.97 1480.04 1022.386 7.05 7.09 9.299 3.18489 4.64279 29.26 1480.38 1022.612 7.35 7.38 9.331 3.19723 4.65653 29.35 1480.63 1022.686 7.65 7.68 9.353 3.21558 4.68024 29.52 1480.92 1022.815 7.95 7.98 9.371 3.22821 4.69617 29.64 1481.13 1022.902 8.25 8.28 9.386 3.23216 4.69979 29.66 1481.22 1022.922 8.55 8.58 9.397 3.23969 4.70928 29.73 1481.35 1022.975 8.85 8.88 9.397 3.25209 4.72734 29.86 1481.51 1023.075 9.15 9.18 9.402 3.26400 4.74389 29.97 1481.68 1023.166 9.45 9.48 9.405 3.27036 4.75276 30.04 1481.77 1023.216 9.75 9.78 9.405 3.27456 4.75888 30.08 1481.82 1023.250 10.05 10.07 9.404 3.27440 4.75874 30.08 1481.82 1023.251 10.35 10.37 9.399 3.27695 4.76319 30.11 1481.85 1023.277 10.65 10.67 9.401 3.28096 4.76870 30.15 1481.91 1023.308 10.95 10.97 9.398 3.28269 4.77157 30.17 1481.93 1023.325 11.25 11.27 9.398 3.28754 4.77873 30.22 1481.99 1023.366 11.55 11.57 9.394 3.29239 4.78635 30.27 1482.04 1023.409 11.85 11.87 9.384 3.29567 4.79251 30.31 1482.06 1023.444 12.15 12.17 9.369 3.29630 4.79549 30.33 1482.04 1023.463 12.45 12.47 9.357 3.29675 4.79777 30.34 1482.02 1023.477 12.75 12.76 9.344 3.29763 4.80091 30.36 1482.00 1023.496 13.05 13.06 9.316 3.29935 4.80727 30.40 1481.95 1023.534 13.35 13.36 9.309 3.29982 4.80899 30.42 1481.94 1023.545 13.65 13.66 9.287 3.30076 4.81345 30.44 1481.90 1023.572 13.95 13.96 9.284 3.30128 4.81467 30.45 1481.90 1023.580 14.25 14.26 9.265 3.30242 4.81894 30.48 1481.87 1023.605 14.55 14.56 9.260 3.30349 4.82116 30.49 1481.88 1023.619 14.85 14.86 9.251 3.30663 4.82703 30.53 1481.90 1023.653 15.12 15.13 9.251 3.30826 4.82941 30.55 1481.92 1023.667