*2026/01/16 10:37:50.90 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/04/09 01:11:59.000 END TIME : UTC 2025/04/09 01:12:17.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 93 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 27.89 2 Depth metres 0.15 27.84 3 Temperature 'deg C (ITS90)' 8.588 9.608 4 Conductivity S/m 0.77303 3.10433 5 Conductance:Specific S/m 1.13791 4.6184 6 Salinity PSS-78 6.34 28.99 7 Speed:Sound m/s 1451.01 1478.7 8 Density kg/m^3 1004.755 1022.6 $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 : 95 LATITUDE : 49 56.83260 N ! (deg min) LONGITUDE : 126 48.88640 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250409_011159 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:27 93 93 MERGEHDR 1.3 2026/01/16 10:35:41 93 93 HDREDIT2 3.2 2026/01/16 10:36:12 ? ? REMOVECH 8.2 2026/01/16 10:36:39 93 93 CALIB 12.1 2026/01/16 10:37:14 93 93 CLEAN 5.3 2026/01/16 10:37:50 93 93 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:12 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 10:36:39 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:14 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 8.967 0.77303 1.13791 6.34 1451.01 1004.755 0.45 0.46 9.211 1.12100 1.63835 9.39 1455.73 1007.114 0.75 0.76 9.410 1.73443 2.52025 14.98 1463.33 1011.449 1.05 1.06 9.524 2.14018 3.09955 18.78 1468.39 1014.393 1.35 1.36 9.608 2.55336 3.68901 22.74 1473.51 1017.460 1.65 1.66 9.561 2.70690 3.91614 24.28 1475.21 1018.665 1.95 1.96 9.549 2.79911 4.05087 25.20 1476.29 1019.385 2.25 2.26 9.512 2.82720 4.09592 25.50 1476.52 1019.629 2.55 2.56 9.449 2.86178 4.15369 25.89 1476.76 1019.943 2.85 2.86 9.412 2.90632 4.22283 26.36 1477.21 1020.317 3.15 3.16 9.392 2.93714 4.27012 26.68 1477.53 1020.574 3.45 3.46 9.350 2.95996 4.30852 26.94 1477.69 1020.784 3.75 3.76 9.291 2.96920 4.32940 27.08 1477.65 1020.901 4.05 4.06 9.246 2.97495 4.34349 27.17 1477.60 1020.981 4.35 4.36 9.213 2.97635 4.34973 27.21 1477.52 1021.018 4.65 4.66 9.192 2.98008 4.35792 27.27 1477.51 1021.064 4.95 4.96 9.226 2.98481 4.36047 27.29 1477.67 1021.077 5.25 5.26 9.263 2.99375 4.36874 27.35 1477.89 1021.121 5.55 5.56 9.321 3.00330 4.37536 27.40 1478.18 1021.155 5.85 5.86 9.363 3.01782 4.39107 27.52 1478.48 1021.239 6.15 6.16 9.344 3.02302 4.40104 27.58 1478.50 1021.295 6.45 6.46 9.357 3.03235 4.41298 27.67 1478.65 1021.360 6.75 6.76 9.363 3.03444 4.41525 27.68 1478.70 1021.373 7.05 7.05 9.372 3.03233 4.41100 27.65 1478.70 1021.351 7.35 7.35 9.382 3.02869 4.40449 27.61 1478.69 1021.316 7.65 7.65 9.367 3.02796 4.40537 27.61 1478.64 1021.323 7.95 7.95 9.331 3.02747 4.40928 27.64 1478.54 1021.348 8.25 8.25 9.271 3.02898 4.41920 27.70 1478.40 1021.406 8.55 8.55 9.249 3.03151 4.42562 27.74 1478.37 1021.443 8.85 8.85 9.253 3.03047 4.42368 27.73 1478.37 1021.434 9.15 9.15 9.248 3.02988 4.42344 27.72 1478.36 1021.434 9.45 9.45 9.228 3.03229 4.42949 27.76 1478.34 1021.469 9.75 9.75 9.162 3.03271 4.43872 27.82 1478.16 1021.524 10.05 10.05 9.084 3.02474 4.43713 27.80 1477.85 1021.521 10.35 10.35 9.073 3.02142 4.43381 27.77 1477.78 1021.504 10.65 10.65 9.053 3.02384 4.43993 27.81 1477.76 1021.540 10.95 10.95 8.991 3.02539 4.45022 27.88 1477.61 1021.600 11.25 11.25 8.937 3.02258 4.45321 27.89 1477.43 1021.620 11.55 11.55 8.911 3.01946 4.45201 27.88 1477.32 1021.616 11.85 11.84 8.884 3.01965 4.45592 27.90 1477.25 1021.640 12.15 12.14 8.851 3.02164 4.46312 27.95 1477.19 1021.681 12.45 12.44 8.832 3.02230 4.46662 27.97 1477.15 1021.702 12.75 12.74 8.820 3.02230 4.46828 27.98 1477.12 1021.713 13.05 13.04 8.807 3.02294 4.47089 28.00 1477.10 1021.729 13.35 13.34 8.790 3.02321 4.47355 28.01 1477.06 1021.745 13.65 13.64 8.765 3.02455 4.47884 28.05 1477.01 1021.776 13.95 13.94 8.740 3.02548 4.48356 28.08 1476.96 1021.804 14.25 14.24 8.723 3.02905 4.49114 28.13 1476.96 1021.847 14.55 14.54 8.706 3.03035 4.49521 28.15 1476.93 1021.871 14.85 14.84 8.692 3.03133 4.49862 28.17 1476.91 1021.892 15.15 15.14 8.684 3.03300 4.50218 28.20 1476.91 1021.913 15.45 15.44 8.673 3.03368 4.50465 28.21 1476.90 1021.928 15.75 15.74 8.665 3.03510 4.50780 28.23 1476.90 1021.946 16.05 16.03 8.659 3.03566 4.50940 28.24 1476.89 1021.956 16.35 16.33 8.653 3.03668 4.51177 28.26 1476.89 1021.971 16.65 16.63 8.651 3.03723 4.51280 28.27 1476.90 1021.978 16.95 16.93 8.648 3.03777 4.51407 28.27 1476.90 1021.986 17.25 17.23 8.647 3.03810 4.51462 28.28 1476.91 1021.990 17.55 17.53 8.645 3.03865 4.51581 28.29 1476.91 1021.998 17.85 17.83 8.640 3.03890 4.51680 28.29 1476.91 1022.005 18.15 18.13 8.637 3.03916 4.51759 28.30 1476.91 1022.011 18.45 18.43 8.633 3.04282 4.52357 28.34 1476.95 1022.044 18.75 18.73 8.626 3.04682 4.53039 28.38 1476.98 1022.083 19.05 19.03 8.625 3.05045 4.53601 28.42 1477.03 1022.115 19.35 19.33 8.620 3.05145 4.53816 28.44 1477.03 1022.128 19.65 19.62 8.614 3.05270 4.54087 28.45 1477.04 1022.144 19.95 19.92 8.610 3.05398 4.54330 28.47 1477.05 1022.159 20.25 20.22 8.605 3.05625 4.54726 28.50 1477.07 1022.181 20.55 20.52 8.603 3.05693 4.54861 28.51 1477.07 1022.190 20.85 20.82 8.599 3.05971 4.55322 28.54 1477.10 1022.217 21.15 21.12 8.596 3.06065 4.55504 28.55 1477.11 1022.228 21.45 21.42 8.595 3.06270 4.55827 28.57 1477.14 1022.247 21.75 21.72 8.594 3.06371 4.55989 28.58 1477.16 1022.257 22.05 22.02 8.592 3.06389 4.56045 28.59 1477.16 1022.261 22.35 22.32 8.590 3.06433 4.56141 28.59 1477.16 1022.268 22.65 22.62 8.590 3.06504 4.56240 28.60 1477.18 1022.274 22.95 22.92 8.590 3.06469 4.56195 28.60 1477.17 1022.273 23.25 23.21 8.589 3.06522 4.56279 28.60 1477.18 1022.279 23.55 23.51 8.589 3.06519 4.56285 28.60 1477.19 1022.281 23.85 23.81 8.588 3.06524 4.56295 28.60 1477.19 1022.283 24.15 24.11 8.589 3.06670 4.56507 28.62 1477.22 1022.295 24.45 24.41 8.589 3.06912 4.56866 28.64 1477.25 1022.316 24.75 24.71 8.590 3.07445 4.57638 28.70 1477.33 1022.359 25.05 25.01 8.594 3.08268 4.58808 28.78 1477.45 1022.424 25.35 25.31 8.592 3.08902 4.59782 28.84 1477.53 1022.478 25.65 25.61 8.593 3.09384 4.60485 28.89 1477.60 1022.517 25.95 25.91 8.597 3.09665 4.60857 28.92 1477.65 1022.539 26.25 26.21 8.601 3.09734 4.60898 28.92 1477.67 1022.542 26.55 26.50 8.603 3.09943 4.61182 28.94 1477.71 1022.558 26.85 26.80 8.606 3.10118 4.61403 28.96 1477.74 1022.572 27.15 27.10 8.607 3.10143 4.61424 28.96 1477.76 1022.574 27.45 27.40 8.606 3.10307 4.61678 28.98 1477.78 1022.589 27.89 27.84 8.608 3.10433 4.61840 28.99 1477.81 1022.600