*2026/01/16 10:37:55.88 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/06/24 15:50:26.000 END TIME : UTC 2025/06/24 15:50:55.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 146 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 43.61 2 Depth metres 0.15 43.52 3 Temperature 'deg C (ITS90)' 12.735 13.294 4 Conductivity S/m 3.3541 3.41809 5 Conductance:Specific S/m 4.39429 4.52504 6 Salinity PSS-78 27.91 28.77 7 Speed:Sound m/s 1491.47 1493.01 8 Density kg/m^3 1020.867 1021.815 $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 : 179 LATITUDE : 49 11.00620 N ! (deg min) LONGITUDE : 125 46.44670 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250624_155026 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:32 146 146 MERGEHDR 1.3 2026/01/16 10:35:45 146 146 HDREDIT2 3.2 2026/01/16 10:36:17 ? ? REMOVECH 8.2 2026/01/16 10:36:45 146 146 CALIB 12.1 2026/01/16 10:37:19 146 146 CLEAN 5.3 2026/01/16 10:37:55 146 146 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:17 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 10:36:45 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:19 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 13.294 3.38426 4.41881 28.08 1493.01 1020.988 0.45 0.45 13.262 3.37554 4.41111 28.03 1492.84 1020.951 0.75 0.75 13.235 3.36413 4.39928 27.94 1492.65 1020.892 1.05 1.05 13.228 3.35974 4.39429 27.91 1492.59 1020.867 1.35 1.35 13.211 3.36687 4.40560 27.98 1492.63 1020.932 1.65 1.65 13.192 3.36274 4.40236 27.96 1492.55 1020.918 1.95 1.95 13.172 3.36552 4.40837 28.00 1492.53 1020.954 2.25 2.25 13.144 3.36793 4.41471 28.04 1492.49 1020.994 2.55 2.55 13.109 3.36585 4.41610 28.05 1492.38 1021.007 2.85 2.85 13.067 3.36417 4.41871 28.06 1492.27 1021.028 3.15 3.15 13.034 3.36225 4.42010 28.07 1492.17 1021.041 3.45 3.44 13.004 3.36190 4.42308 28.09 1492.09 1021.062 3.75 3.74 12.963 3.36028 4.42568 28.11 1491.98 1021.083 4.05 4.04 12.927 3.35872 4.42785 28.12 1491.87 1021.100 4.35 4.34 12.904 3.35733 4.42878 28.12 1491.80 1021.110 4.65 4.64 12.888 3.35627 4.42916 28.12 1491.76 1021.115 4.95 4.94 12.866 3.35410 4.42894 28.12 1491.68 1021.118 5.25 5.24 12.834 3.35475 4.43354 28.15 1491.61 1021.148 5.55 5.54 12.807 3.35450 4.43639 28.17 1491.54 1021.168 5.85 5.84 12.787 3.35596 4.44059 28.20 1491.52 1021.195 6.15 6.14 12.775 3.35565 4.44158 28.20 1491.49 1021.203 6.45 6.44 12.771 3.35610 4.44274 28.21 1491.49 1021.211 6.75 6.74 12.765 3.35617 4.44348 28.21 1491.48 1021.217 7.05 7.04 12.758 3.35651 4.44479 28.22 1491.47 1021.226 7.35 7.34 12.753 3.35859 4.44817 28.25 1491.48 1021.247 7.65 7.64 12.748 3.35857 4.44866 28.25 1491.48 1021.251 7.95 7.94 12.744 3.35854 4.44910 28.25 1491.47 1021.255 8.25 8.24 12.741 3.35957 4.45087 28.26 1491.48 1021.266 8.55 8.54 12.740 3.35875 4.44987 28.26 1491.47 1021.262 8.85 8.84 12.738 3.35869 4.45000 28.26 1491.47 1021.265 9.15 9.13 12.737 3.35972 4.45150 28.27 1491.48 1021.274 9.45 9.43 12.737 3.36002 4.45191 28.27 1491.49 1021.278 9.75 9.73 12.736 3.36060 4.45275 28.28 1491.50 1021.284 10.05 10.03 12.736 3.36025 4.45230 28.27 1491.50 1021.282 10.35 10.33 12.735 3.36077 4.45306 28.28 1491.51 1021.288 10.65 10.63 12.736 3.35937 4.45119 28.26 1491.50 1021.279 10.95 10.93 12.735 3.36069 4.45304 28.28 1491.52 1021.290 11.25 11.23 12.736 3.36038 4.45250 28.27 1491.52 1021.289 11.55 11.53 12.738 3.36019 4.45205 28.27 1491.53 1021.287 11.85 11.83 12.737 3.36109 4.45328 28.28 1491.54 1021.295 12.15 12.13 12.737 3.35799 4.44921 28.25 1491.51 1021.274 12.45 12.43 12.737 3.35957 4.45129 28.26 1491.54 1021.287 12.75 12.73 12.737 3.36288 4.45570 28.29 1491.58 1021.312 13.05 13.03 12.738 3.36236 4.45489 28.29 1491.58 1021.309 13.35 13.33 12.738 3.36337 4.45624 28.30 1491.59 1021.318 13.65 13.63 12.738 3.36439 4.45757 28.31 1491.61 1021.326 13.95 13.93 12.739 3.36428 4.45731 28.31 1491.62 1021.326 14.25 14.22 12.740 3.36437 4.45727 28.31 1491.62 1021.327 14.55 14.52 12.741 3.36487 4.45790 28.31 1491.64 1021.331 14.85 14.82 12.740 3.36499 4.45807 28.31 1491.64 1021.334 15.15 15.12 12.740 3.36528 4.45845 28.31 1491.65 1021.337 15.45 15.42 12.742 3.36495 4.45782 28.31 1491.66 1021.335 15.75 15.72 12.741 3.36600 4.45928 28.32 1491.67 1021.344 16.05 16.02 12.743 3.36629 4.45948 28.32 1491.68 1021.346 16.35 16.32 12.745 3.36646 4.45945 28.32 1491.69 1021.347 16.65 16.62 12.745 3.36775 4.46121 28.33 1491.71 1021.358 16.95 16.92 12.745 3.36832 4.46193 28.34 1491.72 1021.363 17.25 17.22 12.745 3.36848 4.46217 28.34 1491.73 1021.366 17.55 17.52 12.746 3.36991 4.46397 28.35 1491.75 1021.377 17.85 17.82 12.746 3.37121 4.46562 28.36 1491.77 1021.387 18.15 18.12 12.747 3.37224 4.46685 28.37 1491.79 1021.395 18.45 18.42 12.748 3.37418 4.46938 28.39 1491.82 1021.410 18.75 18.72 12.748 3.37382 4.46887 28.39 1491.82 1021.408 19.05 19.02 12.750 3.37576 4.47125 28.40 1491.85 1021.422 19.35 19.32 12.750 3.37625 4.47184 28.41 1491.86 1021.426 19.65 19.61 12.751 3.37780 4.47380 28.42 1491.89 1021.438 19.95 19.91 12.750 3.37859 4.47491 28.43 1491.90 1021.446 20.25 20.21 12.751 3.38034 4.47715 28.44 1491.92 1021.459 20.55 20.51 12.752 3.38047 4.47719 28.44 1491.93 1021.460 20.85 20.81 12.752 3.38160 4.47869 28.46 1491.95 1021.470 21.15 21.11 12.754 3.38205 4.47908 28.46 1491.97 1021.473 21.45 21.41 12.755 3.38209 4.47906 28.46 1491.97 1021.474 21.75 21.71 12.755 3.38271 4.47985 28.46 1491.98 1021.480 22.05 22.01 12.755 3.38304 4.48027 28.47 1491.99 1021.483 22.35 22.31 12.754 3.38298 4.48034 28.47 1491.99 1021.485 22.65 22.61 12.754 3.38418 4.48193 28.48 1492.01 1021.495 22.95 22.91 12.754 3.38416 4.48184 28.48 1492.02 1021.496 23.25 23.21 12.754 3.38407 4.48175 28.48 1492.02 1021.496 23.55 23.51 12.755 3.38420 4.48183 28.48 1492.03 1021.498 23.85 23.81 12.755 3.38422 4.48187 28.48 1492.03 1021.500 24.15 24.11 12.755 3.38463 4.48239 28.48 1492.04 1021.504 24.45 24.40 12.754 3.38378 4.48138 28.47 1492.04 1021.500 24.75 24.70 12.752 3.38470 4.48275 28.48 1492.05 1021.508 25.05 25.00 12.752 3.38487 4.48304 28.48 1492.05 1021.511 25.35 25.30 12.752 3.38455 4.48259 28.48 1492.06 1021.510 25.65 25.60 12.752 3.38527 4.48361 28.49 1492.07 1021.517 25.95 25.90 12.751 3.38519 4.48357 28.49 1492.07 1021.518 26.25 26.20 12.751 3.38531 4.48368 28.49 1492.08 1021.520 26.55 26.50 12.751 3.38578 4.48431 28.49 1492.09 1021.525 26.85 26.80 12.751 3.38720 4.48623 28.51 1492.11 1021.536 27.15 27.10 12.751 3.38804 4.48738 28.51 1492.12 1021.544 27.45 27.40 12.751 3.38871 4.48829 28.52 1492.13 1021.550 27.75 27.70 12.750 3.39093 4.49133 28.54 1492.16 1021.568 28.05 28.00 12.750 3.39057 4.49081 28.54 1492.16 1021.566 28.35 28.30 12.750 3.39155 4.49211 28.55 1492.18 1021.575 28.65 28.60 12.750 3.39292 4.49389 28.56 1492.20 1021.586 28.95 28.90 12.750 3.39449 4.49606 28.57 1492.22 1021.599 29.25 29.19 12.751 3.39561 4.49736 28.58 1492.24 1021.607 29.55 29.49 12.751 3.39674 4.49888 28.59 1492.25 1021.617 29.85 29.79 12.750 3.39661 4.49881 28.59 1492.26 1021.618 30.15 30.09 12.751 3.39695 4.49914 28.60 1492.27 1021.621 30.45 30.39 12.752 3.39746 4.49975 28.60 1492.28 1021.625 30.75 30.69 12.751 3.39849 4.50116 28.61 1492.29 1021.634 31.05 30.99 12.751 3.39950 4.50253 28.62 1492.31 1021.643 31.35 31.29 12.752 3.40140 4.50490 28.64 1492.34 1021.657 31.65 31.59 12.752 3.40223 4.50608 28.64 1492.35 1021.665 31.95 31.89 12.752 3.40219 4.50600 28.64 1492.36 1021.666 32.25 32.19 12.752 3.40280 4.50680 28.65 1492.37 1021.671 32.55 32.49 12.753 3.40561 4.51036 28.67 1492.41 1021.692 32.85 32.79 12.752 3.40667 4.51189 28.68 1492.42 1021.701 33.15 33.09 12.754 3.40810 4.51355 28.70 1492.45 1021.711 33.45 33.39 12.754 3.40906 4.51486 28.71 1492.46 1021.720 33.75 33.68 12.755 3.41019 4.51618 28.71 1492.48 1021.728 34.05 33.98 12.756 3.41151 4.51790 28.73 1492.50 1021.739 34.35 34.28 12.755 3.41308 4.51998 28.74 1492.52 1021.751 34.65 34.58 12.756 3.41295 4.51970 28.74 1492.53 1021.751 34.95 34.88 12.756 3.41396 4.52104 28.75 1492.54 1021.760 35.25 35.18 12.757 3.41369 4.52059 28.75 1492.55 1021.758 35.55 35.48 12.759 3.41451 4.52147 28.75 1492.57 1021.764 35.85 35.78 12.759 3.41488 4.52193 28.75 1492.58 1021.768 36.15 36.08 12.759 3.41388 4.52065 28.75 1492.57 1021.762 36.45 36.38 12.760 3.41503 4.52205 28.76 1492.59 1021.771 36.75 36.68 12.760 3.41498 4.52194 28.75 1492.59 1021.772 37.05 36.98 12.760 3.41538 4.52252 28.76 1492.60 1021.776 37.35 37.28 12.761 3.41518 4.52216 28.76 1492.61 1021.775 37.65 37.58 12.762 3.41561 4.52254 28.76 1492.62 1021.778 37.95 37.87 12.763 3.41630 4.52339 28.76 1492.63 1021.784 38.25 38.17 12.762 3.41668 4.52394 28.77 1492.64 1021.789 38.55 38.47 12.762 3.41646 4.52370 28.77 1492.64 1021.789 38.85 38.77 12.762 3.41710 4.52450 28.77 1492.66 1021.794 39.15 39.07 12.764 3.41648 4.52350 28.76 1492.66 1021.790 39.45 39.37 12.763 3.41626 4.52334 28.76 1492.66 1021.790 39.75 39.67 12.762 3.41680 4.52406 28.77 1492.67 1021.796 40.05 39.97 12.764 3.41506 4.52158 28.75 1492.66 1021.783 40.35 40.27 12.765 3.41672 4.52370 28.77 1492.68 1021.796 40.65 40.57 12.765 3.41663 4.52352 28.76 1492.69 1021.796 40.95 40.87 12.765 3.41742 4.52454 28.77 1492.70 1021.803 41.25 41.17 12.766 3.41658 4.52336 28.76 1492.70 1021.798 41.55 41.47 12.766 3.41710 4.52405 28.77 1492.71 1021.803 41.85 41.77 12.767 3.41739 4.52434 28.77 1492.72 1021.805 42.15 42.07 12.769 3.41722 4.52382 28.77 1492.73 1021.804 42.45 42.36 12.770 3.41665 4.52298 28.76 1492.73 1021.800 42.75 42.66 12.770 3.41738 4.52394 28.77 1492.74 1021.807 43.05 42.96 12.770 3.41725 4.52375 28.77 1492.75 1021.807 43.35 43.26 12.769 3.41809 4.52504 28.77 1492.76 1021.815 43.61 43.52 12.770 3.41729 4.52383 28.77 1492.75 1021.810