*2026/01/16 09:57:48.05 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/02/15 22:33:46.000 END TIME : UTC 2024/02/15 22:34:05.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 100 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 29.87 2 Depth metres 0.15 29.78 3 Temperature 'deg C (ITS90)' 8.781 9.985 4 Conductivity S/m 2.8325 3.34599 5 Conductance:Specific S/m 4.19051 4.78963 6 Salinity PSS-78 26.07 30.35 7 Speed:Sound m/s 1474.46 1484.41 8 Density kg/m^3 1020.168 1023.473 $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 : 55 LATITUDE : 48 56.43070 N ! (deg min) LONGITUDE : 125 15.82930 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240215_223346 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:56 100 100 MERGEHDR 1.3 2026/01/16 09:53:47 100 100 HDREDIT2 3.2 2026/01/16 09:55:02 ? ? REMOVECH 8.2 2026/01/16 09:56:14 100 100 CALIB 12.1 2026/01/16 09:56:46 100 100 CLEAN 5.3 2026/01/16 09:57:48 100 100 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:02 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 09:56:14 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:46 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 8.781 2.83359 4.19404 26.09 1474.46 1020.186 0.45 0.45 8.784 2.83273 4.19236 26.08 1474.46 1020.178 0.75 0.75 8.797 2.83250 4.19051 26.07 1474.50 1020.168 1.05 1.05 8.829 2.83869 4.19562 26.11 1474.67 1020.196 1.35 1.35 8.884 2.85277 4.20957 26.21 1475.01 1020.269 1.65 1.65 8.884 2.85276 4.20965 26.21 1475.02 1020.271 1.95 1.95 8.912 2.86783 4.22839 26.34 1475.29 1020.371 2.25 2.25 8.957 2.87970 4.24023 26.43 1475.57 1020.433 2.55 2.55 9.043 2.90526 4.26702 26.62 1476.14 1020.574 2.85 2.85 9.103 2.92055 4.28198 26.73 1476.50 1020.653 3.15 3.15 9.144 2.93360 4.29589 26.83 1476.78 1020.727 3.45 3.45 9.185 2.94511 4.30761 26.92 1477.05 1020.789 3.75 3.75 9.245 2.95699 4.31739 26.99 1477.37 1020.839 4.05 4.05 9.290 2.96685 4.32606 27.06 1477.62 1020.885 4.35 4.35 9.332 2.97399 4.33119 27.10 1477.83 1020.911 4.65 4.64 9.385 2.98189 4.33606 27.14 1478.08 1020.936 4.95 4.94 9.438 2.99151 4.34328 27.19 1478.35 1020.973 5.25 5.24 9.533 3.01042 4.35877 27.31 1478.85 1021.052 5.55 5.54 9.584 3.03128 4.38253 27.48 1479.25 1021.178 5.85 5.84 9.636 3.05549 4.41080 27.68 1479.70 1021.329 6.15 6.14 9.721 3.07092 4.42226 27.77 1480.12 1021.386 6.45 6.44 9.818 3.10343 4.45662 28.02 1480.79 1021.567 6.75 6.74 9.845 3.16317 4.53889 28.60 1481.59 1022.013 7.05 7.04 9.882 3.17523 4.55133 28.69 1481.85 1022.079 7.35 7.34 9.917 3.17794 4.55073 28.69 1481.98 1022.075 7.65 7.64 9.948 3.18218 4.55270 28.70 1482.12 1022.085 7.95 7.94 9.965 3.18264 4.55120 28.70 1482.17 1022.077 8.25 8.24 9.975 3.19186 4.56302 28.78 1482.32 1022.142 8.55 8.54 9.978 3.19469 4.56676 28.81 1482.36 1022.163 8.85 8.84 9.978 3.19674 4.56967 28.83 1482.39 1022.180 9.15 9.13 9.976 3.19841 4.57229 28.84 1482.41 1022.196 9.45 9.43 9.976 3.20072 4.57564 28.87 1482.44 1022.215 9.75 9.73 9.976 3.20191 4.57731 28.88 1482.46 1022.226 10.05 10.03 9.979 3.20602 4.58282 28.92 1482.53 1022.257 10.35 10.33 9.981 3.21388 4.59374 28.99 1482.63 1022.317 10.65 10.63 9.983 3.21926 4.60116 29.05 1482.71 1022.359 10.95 10.93 9.984 3.22286 4.60622 29.08 1482.76 1022.388 11.25 11.23 9.985 3.22912 4.61495 29.14 1482.84 1022.436 11.55 11.53 9.984 3.23043 4.61695 29.16 1482.86 1022.448 11.85 11.83 9.980 3.23873 4.62940 29.24 1482.95 1022.518 12.15 12.13 9.978 3.24152 4.63364 29.27 1482.99 1022.542 12.45 12.43 9.976 3.24398 4.63746 29.30 1483.02 1022.565 12.75 12.72 9.974 3.24437 4.63828 29.30 1483.02 1022.570 13.05 13.02 9.973 3.24467 4.63887 29.31 1483.03 1022.575 13.35 13.32 9.968 3.24686 4.64262 29.33 1483.04 1022.597 13.65 13.62 9.961 3.24977 4.64774 29.37 1483.07 1022.627 13.95 13.92 9.953 3.25930 4.66236 29.47 1483.17 1022.708 14.25 14.22 9.950 3.26595 4.67231 29.54 1483.24 1022.764 14.55 14.52 9.946 3.26963 4.67808 29.58 1483.28 1022.797 14.85 14.82 9.942 3.27232 4.68250 29.61 1483.31 1022.823 15.15 15.12 9.939 3.27882 4.69225 29.68 1483.38 1022.877 15.45 15.42 9.934 3.28073 4.69560 29.70 1483.40 1022.897 15.75 15.71 9.932 3.28216 4.69798 29.71 1483.41 1022.912 16.05 16.01 9.931 3.28314 4.69945 29.73 1483.43 1022.921 16.35 16.31 9.930 3.28487 4.70212 29.74 1483.45 1022.937 16.65 16.61 9.929 3.28700 4.70520 29.76 1483.48 1022.955 16.95 16.91 9.929 3.28921 4.70837 29.79 1483.51 1022.974 17.25 17.21 9.929 3.29067 4.71049 29.80 1483.54 1022.987 17.55 17.51 9.928 3.29107 4.71119 29.81 1483.54 1022.992 17.85 17.81 9.927 3.29161 4.71213 29.81 1483.55 1022.998 18.15 18.11 9.927 3.29231 4.71316 29.82 1483.56 1023.005 18.45 18.40 9.927 3.29203 4.71269 29.82 1483.57 1023.004 18.75 18.70 9.927 3.29272 4.71368 29.82 1483.58 1023.010 19.05 19.00 9.927 3.29325 4.71441 29.83 1483.59 1023.016 19.35 19.30 9.926 3.29406 4.71577 29.84 1483.60 1023.024 19.65 19.60 9.925 3.29487 4.71709 29.85 1483.61 1023.033 19.95 19.90 9.924 3.29492 4.71721 29.85 1483.62 1023.035 20.25 20.20 9.924 3.29516 4.71757 29.85 1483.63 1023.038 20.55 20.50 9.923 3.29559 4.71835 29.85 1483.63 1023.044 20.85 20.80 9.920 3.29906 4.72375 29.89 1483.67 1023.075 21.15 21.10 9.918 3.30280 4.72934 29.93 1483.72 1023.107 21.45 21.39 9.917 3.30451 4.73192 29.95 1483.74 1023.122 21.75 21.69 9.916 3.30661 4.73513 29.97 1483.77 1023.141 22.05 21.99 9.913 3.30946 4.73957 30.00 1483.80 1023.167 22.35 22.29 9.912 3.31122 4.74225 30.02 1483.82 1023.183 22.65 22.59 9.913 3.31307 4.74481 30.04 1483.85 1023.198 22.95 22.89 9.913 3.31486 4.74737 30.06 1483.88 1023.213 23.25 23.19 9.912 3.31552 4.74833 30.06 1483.89 1023.220 23.55 23.49 9.913 3.31748 4.75106 30.08 1483.92 1023.236 23.85 23.79 9.913 3.31910 4.75344 30.10 1483.94 1023.250 24.15 24.08 9.913 3.32061 4.75556 30.11 1483.97 1023.263 24.45 24.38 9.914 3.32317 4.75913 30.14 1484.01 1023.284 24.75 24.68 9.915 3.32456 4.76092 30.15 1484.03 1023.295 25.05 24.98 9.916 3.32543 4.76209 30.16 1484.05 1023.302 25.35 25.28 9.916 3.32780 4.76537 30.18 1484.08 1023.322 25.65 25.58 9.918 3.32950 4.76757 30.20 1484.11 1023.335 25.95 25.88 9.920 3.33000 4.76801 30.20 1484.13 1023.338 26.25 26.18 9.920 3.33142 4.77003 30.21 1484.15 1023.351 26.55 26.48 9.921 3.33211 4.77097 30.22 1484.17 1023.357 26.85 26.77 9.920 3.33299 4.77228 30.23 1484.18 1023.366 27.15 27.07 9.921 3.33415 4.77384 30.24 1484.20 1023.375 27.45 27.37 9.921 3.33615 4.77676 30.26 1484.23 1023.393 27.75 27.67 9.922 3.33652 4.77710 30.26 1484.24 1023.396 28.05 27.97 9.923 3.33676 4.77738 30.27 1484.25 1023.398 28.35 28.27 9.924 3.33946 4.78108 30.29 1484.29 1023.420 28.65 28.57 9.925 3.34222 4.78479 30.32 1484.34 1023.441 28.95 28.87 9.927 3.34312 4.78580 30.32 1484.36 1023.448 29.25 29.16 9.929 3.34547 4.78895 30.35 1484.40 1023.466 29.55 29.46 9.929 3.34590 4.78957 30.35 1484.41 1023.471 29.87 29.78 9.929 3.34599 4.78963 30.35 1484.41 1023.473