*2026/01/16 09:57:54.09 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/08/16 16:07:06.000 END TIME : UTC 2024/08/16 16:07:20.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 75 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 22.23 2 Depth metres 0.15 22.13 3 Temperature 'deg C (ITS90)' 10.395 14.196 4 Conductivity S/m 3.55278 3.82776 5 Conductance:Specific S/m 4.82495 5.02009 6 Salinity PSS-78 31.01 32.04 7 Speed:Sound m/s 1488.01 1499.95 8 Density kg/m^3 1023.143 1024.675 $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 : 223 LATITUDE : 48 51.15690 N ! (deg min) LONGITUDE : 125 11.69630 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240816_160706 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:05 75 75 MERGEHDR 1.3 2026/01/16 09:54:02 75 75 HDREDIT2 3.2 2026/01/16 09:55:10 ? ? REMOVECH 8.2 2026/01/16 09:56:21 75 75 CALIB 12.1 2026/01/16 09:56:54 75 75 CLEAN 5.3 2026/01/16 09:57:54 75 75 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:10 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 09:56:21 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:54 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 14.196 3.82776 4.88290 31.45 1499.95 1023.407 0.45 0.45 14.126 3.80723 4.86538 31.32 1499.57 1023.321 0.75 0.75 13.980 3.77467 4.84178 31.14 1498.89 1023.213 1.05 1.05 13.825 3.74656 4.82495 31.01 1498.23 1023.143 1.35 1.34 13.476 3.72009 4.83424 31.04 1497.12 1023.243 1.65 1.64 12.967 3.69074 4.86047 31.19 1495.59 1023.454 1.95 1.94 12.650 3.68896 4.89907 31.43 1494.82 1023.707 2.25 2.24 12.438 3.66878 4.89975 31.42 1494.09 1023.737 2.55 2.54 12.194 3.65331 4.91113 31.47 1493.32 1023.828 2.85 2.84 12.001 3.64850 4.93021 31.59 1492.80 1023.955 3.15 3.14 11.826 3.64551 4.94968 31.71 1492.35 1024.082 3.45 3.44 11.674 3.63761 4.95940 31.76 1491.89 1024.152 3.75 3.73 11.556 3.62920 4.96392 31.78 1491.51 1024.190 4.05 4.03 11.434 3.61700 4.96384 31.77 1491.07 1024.202 4.35 4.33 11.267 3.60696 4.97282 31.81 1490.54 1024.269 4.65 4.63 11.224 3.60508 4.97605 31.83 1490.42 1024.292 4.95 4.93 11.171 3.60369 4.98146 31.86 1490.28 1024.328 5.25 5.23 11.144 3.60191 4.98279 31.87 1490.19 1024.339 5.55 5.53 11.100 3.59861 4.98417 31.88 1490.05 1024.351 5.85 5.82 11.075 3.59780 4.98651 31.89 1489.98 1024.368 6.15 6.12 11.069 3.59699 4.98631 31.89 1489.96 1024.368 6.45 6.42 11.060 3.59668 4.98708 31.89 1489.94 1024.375 6.75 6.72 11.053 3.59713 4.98860 31.90 1489.94 1024.385 7.05 7.02 11.049 3.59640 4.98825 31.90 1489.92 1024.385 7.35 7.32 11.045 3.59604 4.98825 31.90 1489.91 1024.386 7.65 7.62 11.037 3.59602 4.98937 31.90 1489.90 1024.394 7.95 7.91 11.035 3.59617 4.98980 31.91 1489.90 1024.398 8.25 8.21 11.036 3.59604 4.98951 31.90 1489.90 1024.398 8.55 8.51 11.030 3.59572 4.98986 31.91 1489.89 1024.401 8.85 8.81 11.011 3.59479 4.99127 31.91 1489.84 1024.412 9.15 9.11 11.000 3.59384 4.99142 31.91 1489.80 1024.415 9.45 9.41 10.991 3.59331 4.99191 31.92 1489.78 1024.420 9.75 9.71 10.987 3.59327 4.99250 31.92 1489.77 1024.425 10.05 10.00 10.981 3.59317 4.99317 31.92 1489.76 1024.430 10.35 10.30 10.983 3.59290 4.99253 31.92 1489.77 1024.428 10.65 10.60 10.979 3.59299 4.99318 31.92 1489.76 1024.433 10.95 10.90 10.965 3.59226 4.99417 31.93 1489.72 1024.441 11.25 11.20 10.947 3.58947 4.99267 31.92 1489.65 1024.435 11.55 11.50 10.936 3.58917 4.99382 31.92 1489.63 1024.444 11.85 11.80 10.906 3.58661 4.99442 31.92 1489.53 1024.451 12.15 12.09 10.828 3.57952 4.99541 31.92 1489.25 1024.464 12.45 12.39 10.792 3.57735 4.99746 31.93 1489.14 1024.479 12.75 12.69 10.754 3.57444 4.99871 31.94 1489.01 1024.491 13.05 12.99 10.677 3.57098 5.00463 31.97 1488.79 1024.531 13.35 13.29 10.637 3.56828 5.00643 31.98 1488.66 1024.545 13.65 13.59 10.612 3.56721 5.00850 31.99 1488.59 1024.560 13.95 13.88 10.590 3.56620 5.01012 32.00 1488.53 1024.572 14.25 14.18 10.560 3.56478 5.01232 32.01 1488.44 1024.587 14.55 14.48 10.555 3.56277 5.01025 31.99 1488.41 1024.578 14.85 14.78 10.543 3.56190 5.01069 31.99 1488.37 1024.582 15.15 15.08 10.530 3.56054 5.01066 31.99 1488.32 1024.584 15.45 15.38 10.510 3.56007 5.01284 32.00 1488.27 1024.599 15.75 15.68 10.506 3.56018 5.01346 32.01 1488.27 1024.604 16.05 15.97 10.504 3.56026 5.01387 32.01 1488.27 1024.608 16.35 16.27 10.500 3.55933 5.01321 32.01 1488.25 1024.606 16.65 16.57 10.495 3.55976 5.01444 32.01 1488.25 1024.614 16.95 16.87 10.495 3.55919 5.01364 32.01 1488.25 1024.611 17.25 17.17 10.487 3.55932 5.01490 32.02 1488.24 1024.620 17.55 17.47 10.480 3.55691 5.01258 32.00 1488.19 1024.609 17.85 17.77 10.467 3.55563 5.01263 32.00 1488.15 1024.611 18.15 18.06 10.448 3.55612 5.01589 32.02 1488.11 1024.632 18.45 18.36 10.446 3.55565 5.01565 32.02 1488.11 1024.632 18.75 18.66 10.440 3.55570 5.01644 32.02 1488.10 1024.638 19.05 18.96 10.437 3.55559 5.01681 32.02 1488.09 1024.641 19.35 19.26 10.433 3.55483 5.01634 32.02 1488.08 1024.640 19.65 19.56 10.432 3.55473 5.01634 32.02 1488.08 1024.642 19.95 19.85 10.425 3.55487 5.01744 32.02 1488.07 1024.650 20.25 20.15 10.421 3.55567 5.01911 32.04 1488.07 1024.660 20.55 20.45 10.429 3.55506 5.01720 32.02 1488.09 1024.651 20.85 20.75 10.426 3.55338 5.01526 32.01 1488.07 1024.641 21.15 21.05 10.409 3.55278 5.01677 32.02 1488.02 1024.652 21.45 21.35 10.401 3.55384 5.01942 32.04 1488.02 1024.669 21.75 21.65 10.411 3.55524 5.01995 32.04 1488.07 1024.672 22.05 21.94 10.395 3.55370 5.02009 32.04 1488.01 1024.675 22.23 22.13 10.425 3.55668 5.01997 32.04 1488.13 1024.673