*2026/01/16 10:37:53.37 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/05/07 20:14:42.000 END TIME : UTC 2025/05/07 20:15:01.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 96 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 28.66 2 Depth metres 0.15 28.59 3 Temperature 'deg C (ITS90)' 9.581 15.048 4 Conductivity S/m 1.111 3.45832 5 Conductance:Specific S/m 1.38709 4.99993 6 Salinity PSS-78 7.96 31.79 7 Speed:Sound m/s 1474.56 1488.56 8 Density kg/m^3 1005.215 1024.641 $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 : 128 LATITUDE : 49 5.74090 N ! (deg min) LONGITUDE : 124 49.20470 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250507_201442 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:29 96 96 MERGEHDR 1.3 2026/01/16 10:35:43 96 96 HDREDIT2 3.2 2026/01/16 10:36:14 ? ? REMOVECH 8.2 2026/01/16 10:36:40 96 96 CALIB 12.1 2026/01/16 10:37:16 96 96 CLEAN 5.3 2026/01/16 10:37:53 96 96 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:14 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 10:36:40 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:16 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 15.048 1.11100 1.38709 7.96 1475.49 1005.215 0.45 0.46 15.019 1.12003 1.39937 8.04 1475.49 1005.279 0.75 0.76 14.996 1.12135 1.40182 8.05 1475.43 1005.296 1.05 1.06 14.980 1.12245 1.40376 8.06 1475.40 1005.309 1.35 1.37 14.977 1.13213 1.41598 8.14 1475.48 1005.369 1.65 1.67 14.973 1.13454 1.41914 8.16 1475.49 1005.386 1.95 1.98 14.953 1.13660 1.42243 8.18 1475.45 1005.406 2.25 2.28 14.897 1.13956 1.42811 8.21 1475.31 1005.443 2.55 2.59 14.666 1.17809 1.48501 8.56 1474.92 1005.752 2.85 2.89 14.328 1.33682 1.69956 9.90 1475.32 1006.836 3.15 3.19 13.811 1.42883 1.84074 10.79 1474.56 1007.600 3.45 3.50 12.881 2.33923 3.08761 18.91 1480.84 1013.999 3.75 3.80 12.328 3.19811 4.28379 27.06 1488.56 1020.391 4.05 4.10 11.660 3.25920 4.44511 28.13 1487.51 1021.339 4.35 4.40 11.131 3.29235 4.55618 28.86 1486.51 1021.995 4.65 4.69 10.718 3.33330 4.66616 29.59 1485.92 1022.632 4.95 4.99 10.471 3.36367 4.74137 30.09 1485.65 1023.065 5.25 5.29 10.264 3.37639 4.78728 30.39 1485.26 1023.333 5.55 5.59 10.104 3.38499 4.82141 30.61 1484.96 1023.532 5.85 5.89 9.983 3.39131 4.84710 30.77 1484.72 1023.683 6.15 6.19 9.909 3.39983 4.86959 30.92 1484.64 1023.812 6.45 6.49 9.860 3.40688 4.88657 31.03 1484.60 1023.910 6.75 6.79 9.800 3.41156 4.90167 31.13 1484.51 1023.998 7.05 7.08 9.764 3.41323 4.90917 31.18 1484.44 1024.042 7.35 7.38 9.750 3.41465 4.91319 31.21 1484.43 1024.067 7.65 7.68 9.738 3.41568 4.91634 31.23 1484.42 1024.086 7.95 7.98 9.727 3.41711 4.92002 31.25 1484.41 1024.108 8.25 8.28 9.719 3.41790 4.92223 31.27 1484.40 1024.122 8.55 8.58 9.714 3.41956 4.92529 31.29 1484.42 1024.140 8.85 8.88 9.709 3.41932 4.92569 31.29 1484.40 1024.144 9.15 9.17 9.705 3.41966 4.92672 31.30 1484.40 1024.151 9.45 9.47 9.703 3.42081 4.92867 31.31 1484.42 1024.163 9.75 9.77 9.698 3.42100 4.92973 31.32 1484.41 1024.171 10.05 10.07 9.693 3.42209 4.93200 31.33 1484.42 1024.185 10.35 10.37 9.687 3.42117 4.93144 31.33 1484.39 1024.183 10.65 10.67 9.683 3.42175 4.93284 31.34 1484.40 1024.193 10.95 10.97 9.680 3.42316 4.93541 31.35 1484.41 1024.208 11.25 11.26 9.676 3.42458 4.93796 31.37 1484.42 1024.224 11.55 11.56 9.671 3.42722 4.94250 31.40 1484.45 1024.250 11.85 11.86 9.668 3.42731 4.94302 31.41 1484.44 1024.255 12.15 12.16 9.666 3.42669 4.94246 31.40 1484.44 1024.253 12.45 12.46 9.663 3.42709 4.94347 31.41 1484.44 1024.260 12.75 12.76 9.660 3.42874 4.94618 31.43 1484.46 1024.276 13.05 13.06 9.657 3.42951 4.94784 31.44 1484.46 1024.287 13.35 13.35 9.655 3.43298 4.95312 31.47 1484.50 1024.317 13.65 13.65 9.652 3.43258 4.95289 31.47 1484.50 1024.317 13.95 13.95 9.651 3.43315 4.95393 31.48 1484.51 1024.324 14.25 14.25 9.647 3.43281 4.95394 31.48 1484.50 1024.326 14.55 14.55 9.645 3.43377 4.95569 31.49 1484.51 1024.337 14.85 14.85 9.642 3.43526 4.95818 31.51 1484.52 1024.352 15.15 15.15 9.641 3.43597 4.95940 31.52 1484.53 1024.360 15.45 15.44 9.641 3.43689 4.96073 31.53 1484.55 1024.369 15.75 15.74 9.641 3.43780 4.96208 31.53 1484.57 1024.377 16.05 16.04 9.637 3.43749 4.96216 31.53 1484.56 1024.379 16.35 16.34 9.632 3.43722 4.96244 31.54 1484.55 1024.382 16.65 16.64 9.630 3.43730 4.96294 31.54 1484.55 1024.387 16.95 16.94 9.627 3.43775 4.96392 31.55 1484.55 1024.393 17.25 17.24 9.626 3.43733 4.96344 31.54 1484.55 1024.392 17.55 17.53 9.625 3.43757 4.96395 31.54 1484.55 1024.396 17.85 17.83 9.625 3.43657 4.96259 31.54 1484.54 1024.390 18.15 18.13 9.622 3.43702 4.96366 31.54 1484.55 1024.397 18.45 18.43 9.620 3.43667 4.96337 31.54 1484.54 1024.397 18.75 18.73 9.619 3.43637 4.96308 31.54 1484.54 1024.397 19.05 19.03 9.618 3.43675 4.96376 31.54 1484.55 1024.402 19.35 19.33 9.617 3.43687 4.96411 31.54 1484.55 1024.405 19.65 19.62 9.616 3.43682 4.96419 31.54 1484.55 1024.407 19.95 19.92 9.617 3.43586 4.96271 31.53 1484.55 1024.400 20.25 20.22 9.614 3.43598 4.96324 31.54 1484.55 1024.404 20.55 20.52 9.611 3.43742 4.96577 31.55 1484.56 1024.420 20.85 20.82 9.609 3.43877 4.96805 31.57 1484.58 1024.434 21.15 21.12 9.606 3.43935 4.96932 31.58 1484.58 1024.442 21.45 21.42 9.604 3.44110 4.97205 31.60 1484.60 1024.458 21.75 21.71 9.604 3.44228 4.97385 31.61 1484.62 1024.470 22.05 22.01 9.603 3.44403 4.97648 31.63 1484.65 1024.485 22.35 22.31 9.603 3.44514 4.97815 31.64 1484.66 1024.496 22.65 22.61 9.600 3.44685 4.98095 31.66 1484.68 1024.513 22.95 22.91 9.598 3.44936 4.98486 31.69 1484.71 1024.536 23.25 23.21 9.597 3.45083 4.98726 31.70 1484.73 1024.550 23.55 23.51 9.595 3.45201 4.98915 31.72 1484.75 1024.562 23.85 23.80 9.595 3.45276 4.99026 31.72 1484.76 1024.569 24.15 24.10 9.595 3.45362 4.99151 31.73 1484.78 1024.578 24.45 24.40 9.595 3.45294 4.99049 31.73 1484.77 1024.573 24.75 24.70 9.594 3.45310 4.99092 31.73 1484.78 1024.577 25.05 25.00 9.591 3.45363 4.99209 31.74 1484.78 1024.585 25.35 25.30 9.589 3.45338 4.99198 31.73 1484.78 1024.585 25.65 25.59 9.588 3.45418 4.99329 31.74 1484.79 1024.594 25.95 25.89 9.588 3.45479 4.99413 31.75 1484.80 1024.600 26.25 26.19 9.589 3.45575 4.99548 31.76 1484.82 1024.609 26.55 26.49 9.588 3.45570 4.99554 31.76 1484.82 1024.610 26.85 26.79 9.587 3.45654 4.99681 31.77 1484.84 1024.618 27.15 27.09 9.586 3.45644 4.99692 31.77 1484.84 1024.620 27.45 27.39 9.584 3.45634 4.99702 31.77 1484.84 1024.622 27.75 27.68 9.584 3.45744 4.99862 31.78 1484.85 1024.632 28.05 27.98 9.584 3.45832 4.99993 31.79 1484.87 1024.641 28.35 28.28 9.581 3.45788 4.99967 31.79 1484.86 1024.641 28.66 28.59 9.583 3.45762 4.99899 31.78 1484.87 1024.638