*2026/01/16 09:57:51.11 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/06/10 22:41:38.000 END TIME : UTC 2024/06/10 22:42:03.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 127 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 38.02 2 Depth metres 0.15 37.84 3 Temperature 'deg C (ITS90)' 9.606 12.899 4 Conductivity S/m 3.45627 3.65565 5 Conductance:Specific S/m 4.82047 4.99742 6 Salinity PSS-78 30.81 31.77 7 Speed:Sound m/s 1484.99 1495.02 8 Density kg/m^3 1023.245 1024.653 $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 : 136 LATITUDE : 48 54.58130 N ! (deg min) LONGITUDE : 125 28.47350 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240610_224138 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:00 127 127 MERGEHDR 1.3 2026/01/16 09:53:53 127 127 HDREDIT2 3.2 2026/01/16 09:55:06 ? ? REMOVECH 8.2 2026/01/16 09:56:17 127 127 CALIB 12.1 2026/01/16 09:56:51 127 127 CLEAN 5.3 2026/01/16 09:57:51 127 127 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:06 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 09:56:17 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:51 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 12.899 3.65565 4.82285 30.91 1495.02 1023.249 0.45 0.45 12.831 3.64724 4.82047 30.89 1494.76 1023.245 0.75 0.75 12.680 3.63446 4.82276 30.89 1494.26 1023.277 1.05 1.05 12.559 3.62689 4.82827 30.92 1493.89 1023.323 1.35 1.34 12.180 3.59953 4.84073 30.97 1492.66 1023.436 1.65 1.64 11.866 3.55518 4.82182 30.81 1491.38 1023.367 1.95 1.94 11.489 3.53040 4.83761 30.88 1490.16 1023.492 2.25 2.24 11.330 3.52742 4.85476 30.98 1489.73 1023.603 2.55 2.54 11.202 3.52529 4.86888 31.07 1489.39 1023.694 2.85 2.84 11.128 3.52536 4.87896 31.13 1489.21 1023.757 3.15 3.14 11.089 3.52496 4.88376 31.16 1489.11 1023.788 3.45 3.44 11.065 3.52248 4.88355 31.16 1489.03 1023.790 3.75 3.73 11.052 3.52214 4.88479 31.17 1489.00 1023.800 4.05 4.03 11.033 3.52186 4.88701 31.18 1488.95 1023.815 4.35 4.33 10.983 3.52037 4.89176 31.21 1488.81 1023.846 4.65 4.63 10.842 3.50986 4.89633 31.22 1488.34 1023.885 4.95 4.93 10.664 3.49787 4.90395 31.26 1487.75 1023.942 5.25 5.23 10.537 3.48892 4.90880 31.28 1487.32 1023.980 5.55 5.53 10.408 3.48372 4.91934 31.33 1486.94 1024.049 5.85 5.83 10.297 3.48065 4.93050 31.40 1486.62 1024.120 6.15 6.12 10.244 3.48045 4.93766 31.44 1486.49 1024.164 6.45 6.42 10.208 3.47999 4.94204 31.47 1486.39 1024.192 6.75 6.72 10.185 3.48003 4.94533 31.49 1486.34 1024.213 7.05 7.02 10.162 3.47994 4.94842 31.51 1486.29 1024.233 7.35 7.32 10.144 3.47942 4.95029 31.52 1486.24 1024.246 7.65 7.62 10.132 3.47926 4.95174 31.53 1486.21 1024.256 7.95 7.92 10.137 3.47926 4.95097 31.52 1486.23 1024.253 8.25 8.21 10.103 3.47670 4.95208 31.53 1486.12 1024.262 8.55 8.51 10.089 3.47733 4.95500 31.55 1486.09 1024.280 8.85 8.81 10.080 3.47447 4.95214 31.52 1486.04 1024.267 9.15 9.11 10.062 3.47292 4.95255 31.52 1485.98 1024.271 9.45 9.41 10.044 3.47272 4.95477 31.54 1485.93 1024.286 9.75 9.71 10.028 3.47201 4.95608 31.54 1485.89 1024.296 10.05 10.01 10.020 3.47198 4.95711 31.55 1485.87 1024.303 10.35 10.30 10.017 3.47233 4.95807 31.56 1485.87 1024.310 10.65 10.60 10.015 3.47389 4.96059 31.57 1485.89 1024.325 10.95 10.90 10.021 3.47515 4.96153 31.58 1485.93 1024.331 11.25 11.20 10.019 3.47562 4.96253 31.59 1485.93 1024.338 11.55 11.50 10.015 3.47506 4.96227 31.59 1485.92 1024.338 11.85 11.80 10.011 3.47518 4.96300 31.59 1485.92 1024.344 12.15 12.10 10.010 3.47416 4.96168 31.58 1485.91 1024.338 12.45 12.39 10.009 3.47479 4.96277 31.59 1485.92 1024.345 12.75 12.69 10.008 3.47466 4.96260 31.59 1485.92 1024.345 13.05 12.99 10.007 3.47449 4.96254 31.59 1485.92 1024.346 13.35 13.29 10.005 3.47420 4.96243 31.59 1485.91 1024.347 13.65 13.59 10.007 3.47379 4.96153 31.58 1485.92 1024.343 13.95 13.89 10.006 3.47426 4.96237 31.58 1485.93 1024.349 14.25 14.19 9.995 3.47433 4.96402 31.59 1485.91 1024.360 14.55 14.48 9.986 3.47287 4.96322 31.59 1485.87 1024.358 14.85 14.78 9.978 3.47036 4.96085 31.57 1485.82 1024.347 15.15 15.08 9.966 3.47015 4.96219 31.58 1485.79 1024.356 15.45 15.38 9.966 3.47025 4.96231 31.58 1485.80 1024.358 15.75 15.68 9.965 3.47156 4.96427 31.59 1485.82 1024.370 16.05 15.98 9.961 3.47195 4.96540 31.60 1485.82 1024.378 16.35 16.28 9.961 3.47109 4.96424 31.59 1485.81 1024.373 16.65 16.57 9.943 3.47019 4.96544 31.60 1485.76 1024.382 16.95 16.87 9.929 3.46933 4.96628 31.60 1485.72 1024.388 17.25 17.17 9.917 3.46958 4.96828 31.61 1485.69 1024.401 17.55 17.47 9.905 3.46874 4.96879 31.62 1485.66 1024.406 17.85 17.77 9.903 3.46894 4.96942 31.62 1485.66 1024.411 18.15 18.07 9.889 3.46830 4.97046 31.63 1485.62 1024.419 18.45 18.37 9.881 3.46818 4.97138 31.63 1485.60 1024.426 18.75 18.66 9.838 3.46643 4.97501 31.65 1485.48 1024.450 19.05 18.96 9.824 3.46640 4.97696 31.66 1485.45 1024.463 19.35 19.26 9.821 3.46614 4.97702 31.66 1485.44 1024.464 19.65 19.56 9.817 3.46528 4.97637 31.66 1485.42 1024.462 19.95 19.86 9.810 3.46569 4.97797 31.67 1485.42 1024.473 20.25 20.16 9.802 3.46479 4.97787 31.67 1485.39 1024.474 20.55 20.45 9.803 3.46497 4.97793 31.67 1485.40 1024.475 20.85 20.75 9.800 3.46427 4.97746 31.66 1485.38 1024.474 21.15 21.05 9.798 3.46482 4.97842 31.67 1485.39 1024.481 21.45 21.35 9.794 3.46426 4.97817 31.67 1485.38 1024.481 21.75 21.65 9.777 3.46392 4.98018 31.68 1485.34 1024.495 22.05 21.95 9.769 3.46349 4.98072 31.68 1485.32 1024.499 22.35 22.25 9.771 3.46303 4.97976 31.67 1485.32 1024.495 22.65 22.54 9.765 3.46331 4.98100 31.68 1485.31 1024.504 22.95 22.84 9.763 3.46331 4.98131 31.68 1485.31 1024.507 23.25 23.14 9.760 3.46298 4.98129 31.68 1485.30 1024.508 23.55 23.44 9.755 3.46324 4.98230 31.69 1485.30 1024.515 23.85 23.74 9.747 3.46242 4.98230 31.69 1485.27 1024.517 24.15 24.04 9.741 3.46164 4.98212 31.69 1485.25 1024.517 24.45 24.34 9.735 3.46210 4.98363 31.70 1485.25 1024.527 24.75 24.63 9.729 3.46214 4.98448 31.70 1485.24 1024.534 25.05 24.93 9.725 3.46102 4.98347 31.69 1485.22 1024.530 25.35 25.23 9.706 3.45938 4.98381 31.69 1485.15 1024.534 25.65 25.53 9.684 3.45851 4.98569 31.70 1485.09 1024.547 25.95 25.83 9.662 3.45827 4.98860 31.72 1485.04 1024.565 26.25 26.13 9.647 3.45770 4.98995 31.73 1484.99 1024.575 26.55 26.43 9.651 3.45870 4.99079 31.73 1485.02 1024.580 26.85 26.72 9.659 3.45826 4.98901 31.72 1485.04 1024.572 27.15 27.02 9.659 3.45815 4.98884 31.72 1485.05 1024.572 27.45 27.32 9.653 3.45857 4.99024 31.73 1485.04 1024.581 27.75 27.62 9.645 3.45832 4.99103 31.73 1485.02 1024.587 28.05 27.92 9.646 3.45808 4.99064 31.73 1485.03 1024.586 28.35 28.22 9.642 3.45755 4.99035 31.73 1485.02 1024.586 28.65 28.51 9.646 3.45742 4.98968 31.72 1485.03 1024.583 28.95 28.81 9.655 3.45873 4.99019 31.73 1485.07 1024.587 29.25 29.11 9.646 3.45703 4.98911 31.72 1485.03 1024.583 29.55 29.41 9.647 3.45755 4.98967 31.72 1485.05 1024.587 29.85 29.71 9.642 3.45764 4.99058 31.73 1485.04 1024.594 30.15 30.01 9.632 3.45744 4.99174 31.74 1485.02 1024.602 30.45 30.31 9.631 3.45758 4.99200 31.74 1485.02 1024.605 30.75 30.60 9.634 3.45725 4.99105 31.73 1485.03 1024.601 31.05 30.90 9.633 3.45670 4.99041 31.73 1485.02 1024.598 31.35 31.20 9.629 3.45788 4.99276 31.74 1485.03 1024.613 31.65 31.50 9.635 3.45718 4.99083 31.73 1485.05 1024.603 31.95 31.80 9.642 3.45783 4.99082 31.73 1485.07 1024.604 32.25 32.10 9.641 3.45787 4.99096 31.73 1485.08 1024.606 32.55 32.39 9.630 3.45799 4.99271 31.74 1485.06 1024.618 32.85 32.69 9.639 3.45795 4.99143 31.73 1485.08 1024.611 33.15 32.99 9.644 3.45764 4.99027 31.73 1485.10 1024.606 33.45 33.29 9.646 3.45773 4.99013 31.73 1485.11 1024.606 33.75 33.59 9.642 3.45781 4.99080 31.73 1485.10 1024.611 34.05 33.89 9.635 3.45722 4.99090 31.73 1485.08 1024.614 34.35 34.19 9.614 3.45680 4.99339 31.74 1485.03 1024.630 34.65 34.48 9.612 3.45945 4.99742 31.77 1485.06 1024.653 34.95 34.78 9.646 3.45967 4.99295 31.74 1485.16 1024.628 35.25 35.08 9.667 3.45826 4.98788 31.71 1485.20 1024.600 35.55 35.38 9.668 3.45776 4.98702 31.71 1485.20 1024.597 35.85 35.68 9.660 3.45781 4.98822 31.71 1485.18 1024.605 36.15 35.98 9.649 3.45827 4.99041 31.73 1485.17 1024.619 36.45 36.27 9.641 3.45773 4.99088 31.73 1485.14 1024.623 36.75 36.57 9.634 3.45714 4.99092 31.73 1485.12 1024.625 37.05 36.87 9.640 3.45718 4.99009 31.72 1485.14 1024.621 37.35 37.17 9.621 3.45681 4.99238 31.74 1485.09 1024.636 37.65 37.47 9.606 3.45627 4.99370 31.74 1485.05 1024.646 38.02 37.84 9.606 3.45631 4.99384 31.74 1485.06 1024.648