*2026/01/16 09:57:52.93 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/07/10 16:54:05.000 END TIME : UTC 2024/07/10 16:54:32.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 140 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 41.87 2 Depth metres 0.15 41.68 3 Temperature 'deg C (ITS90)' 9.081 21.722 4 Conductivity S/m 3.17856 3.82854 5 Conductance:Specific S/m 3.40428 5.14158 6 Salinity PSS-78 21.32 32.71 7 Speed:Sound m/s 1484.37 1511.42 8 Density kg/m^3 1013.944 1025.504 $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 : 174 LATITUDE : 49 45.43470 N ! (deg min) LONGITUDE : 126 25.66020 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240710_165405 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:02 140 140 MERGEHDR 1.3 2026/01/16 09:53:57 140 140 HDREDIT2 3.2 2026/01/16 09:55:07 ? ? REMOVECH 8.2 2026/01/16 09:56:19 140 140 CALIB 12.1 2026/01/16 09:56:52 140 140 CLEAN 5.3 2026/01/16 09:57:52 140 140 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:07 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 09:56:19 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:52 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 21.693 3.17979 3.40497 21.33 1511.03 1013.944 0.45 0.45 21.656 3.17856 3.40641 21.33 1510.94 1013.962 0.75 0.75 21.689 3.17885 3.40428 21.32 1511.02 1013.944 1.05 1.06 21.722 3.20047 3.42500 21.46 1511.27 1014.046 1.35 1.36 21.698 3.21899 3.44661 21.61 1511.37 1014.166 1.65 1.66 21.564 3.24536 3.48483 21.88 1511.30 1014.400 1.95 1.96 21.379 3.28825 3.54499 22.29 1511.25 1014.762 2.25 2.26 21.220 3.35075 3.62480 22.84 1511.42 1015.222 2.55 2.56 21.013 3.36846 3.66030 23.09 1511.11 1015.460 2.85 2.86 20.777 3.39456 3.70770 23.41 1510.82 1015.769 3.15 3.16 20.185 3.43249 3.79828 24.03 1509.83 1016.389 3.45 3.47 19.719 3.51961 3.93529 24.98 1509.56 1017.226 3.75 3.77 18.384 3.71668 4.28347 27.40 1508.38 1019.391 4.05 4.07 17.603 3.78507 4.44227 28.50 1507.30 1020.414 4.35 4.36 16.835 3.82854 4.57576 29.42 1506.01 1021.293 4.65 4.66 15.914 3.81657 4.66410 30.00 1503.83 1021.945 4.95 4.96 15.286 3.79298 4.70759 30.27 1502.17 1022.292 5.25 5.26 14.659 3.77538 4.75980 30.60 1500.55 1022.680 5.55 5.56 13.983 3.75226 4.81270 30.93 1498.73 1023.072 5.85 5.86 13.419 3.72317 4.84553 31.12 1497.09 1023.332 6.15 6.16 12.935 3.69810 4.87429 31.28 1495.67 1023.554 6.45 6.46 12.613 3.68056 4.89270 31.38 1494.71 1023.695 6.75 6.76 12.313 3.66475 4.91081 31.48 1493.81 1023.831 7.05 7.06 12.138 3.65545 4.92146 31.54 1493.28 1023.910 7.35 7.35 11.978 3.65009 4.93546 31.62 1492.84 1024.005 7.65 7.65 11.835 3.64288 4.94484 31.68 1492.41 1024.073 7.95 7.95 11.718 3.63883 4.95510 31.74 1492.08 1024.143 8.25 8.25 11.615 3.63430 4.96281 31.78 1491.78 1024.197 8.55 8.55 11.532 3.63277 4.97209 31.84 1491.56 1024.258 8.85 8.85 11.406 3.62664 4.98079 31.88 1491.19 1024.319 9.15 9.15 11.247 3.61233 4.98287 31.88 1490.63 1024.346 9.45 9.44 11.138 3.60219 4.98399 31.88 1490.25 1024.363 9.75 9.74 11.042 3.59522 4.98748 31.89 1489.93 1024.392 10.05 10.04 10.963 3.59259 4.99485 31.93 1489.71 1024.441 10.35 10.34 10.876 3.59083 5.00453 31.99 1489.48 1024.503 10.65 10.64 10.809 3.58744 5.00916 32.02 1489.27 1024.535 10.95 10.94 10.778 3.58671 5.01245 32.04 1489.19 1024.557 11.25 11.23 10.752 3.58606 5.01514 32.05 1489.13 1024.575 11.55 11.53 10.730 3.58453 5.01607 32.06 1489.06 1024.583 11.85 11.83 10.699 3.58388 5.01952 32.08 1488.98 1024.606 12.15 12.13 10.647 3.57931 5.02050 32.08 1488.80 1024.617 12.45 12.43 10.595 3.57595 5.02309 32.09 1488.63 1024.637 12.75 12.73 10.555 3.57311 5.02474 32.10 1488.50 1024.650 13.05 13.03 10.512 3.57140 5.02848 32.12 1488.38 1024.675 13.35 13.32 10.479 3.56996 5.03102 32.13 1488.28 1024.693 13.65 13.62 10.435 3.56669 5.03271 32.14 1488.14 1024.707 13.95 13.92 10.407 3.56529 5.03479 32.15 1488.05 1024.722 14.25 14.22 10.377 3.56407 5.03721 32.16 1487.97 1024.738 14.55 14.52 10.349 3.56198 5.03827 32.17 1487.88 1024.747 14.85 14.82 10.308 3.55896 5.03984 32.17 1487.74 1024.760 15.15 15.11 10.246 3.55523 5.04347 32.19 1487.55 1024.786 15.45 15.41 10.190 3.55264 5.04776 32.21 1487.38 1024.815 15.75 15.71 10.139 3.54970 5.05097 32.23 1487.22 1024.837 16.05 16.01 10.106 3.54859 5.05404 32.25 1487.13 1024.858 16.35 16.31 10.083 3.54787 5.05635 32.26 1487.07 1024.873 16.65 16.61 10.053 3.54830 5.06135 32.29 1487.00 1024.904 16.95 16.90 10.046 3.54696 5.06041 32.28 1486.97 1024.900 17.25 17.20 10.038 3.54610 5.06035 32.28 1486.94 1024.902 17.55 17.50 10.030 3.54556 5.06076 32.28 1486.92 1024.906 17.85 17.80 10.022 3.54521 5.06144 32.29 1486.90 1024.911 18.15 18.10 10.020 3.54493 5.06135 32.29 1486.90 1024.912 18.45 18.40 10.012 3.54524 5.06283 32.29 1486.89 1024.922 18.75 18.70 10.008 3.54597 5.06453 32.31 1486.89 1024.933 19.05 18.99 9.983 3.54437 5.06583 32.31 1486.81 1024.943 19.35 19.29 9.978 3.54358 5.06548 32.31 1486.79 1024.943 19.65 19.59 9.966 3.54325 5.06671 32.32 1486.76 1024.952 19.95 19.89 9.946 3.54303 5.06928 32.33 1486.72 1024.968 20.25 20.19 9.936 3.54158 5.06864 32.32 1486.68 1024.967 20.55 20.49 9.929 3.54064 5.06838 32.32 1486.65 1024.967 20.85 20.78 9.911 3.54058 5.07084 32.34 1486.61 1024.983 21.15 21.08 9.901 3.54126 5.07334 32.35 1486.60 1024.999 21.45 21.38 9.903 3.54112 5.07285 32.35 1486.61 1024.997 21.75 21.68 9.906 3.54131 5.07264 32.35 1486.62 1024.997 22.05 21.98 9.902 3.53976 5.07098 32.34 1486.60 1024.989 22.35 22.28 9.879 3.53921 5.07358 32.35 1486.54 1025.006 22.65 22.57 9.872 3.53841 5.07349 32.35 1486.51 1025.008 22.95 22.87 9.850 3.53791 5.07592 32.36 1486.46 1025.024 23.25 23.17 9.842 3.53708 5.07583 32.36 1486.43 1025.025 23.55 23.47 9.822 3.53603 5.07723 32.37 1486.37 1025.035 23.85 23.77 9.813 3.53516 5.07731 32.37 1486.34 1025.037 24.15 24.07 9.790 3.53424 5.07933 32.38 1486.28 1025.051 24.45 24.36 9.765 3.53267 5.08078 32.39 1486.20 1025.062 24.75 24.66 9.733 3.53179 5.08423 32.41 1486.11 1025.084 25.05 24.96 9.714 3.53109 5.08593 32.42 1486.06 1025.096 25.35 25.26 9.682 3.52949 5.08830 32.43 1485.97 1025.112 25.65 25.56 9.643 3.52832 5.09242 32.45 1485.85 1025.138 25.95 25.86 9.634 3.52728 5.09224 32.45 1485.82 1025.139 26.25 26.15 9.619 3.52836 5.09602 32.47 1485.80 1025.162 26.55 26.45 9.637 3.52818 5.09301 32.45 1485.85 1025.145 26.85 26.75 9.620 3.52589 5.09228 32.45 1485.78 1025.144 27.15 27.05 9.608 3.52652 5.09499 32.46 1485.77 1025.160 27.45 27.35 9.597 3.52605 5.09595 32.47 1485.74 1025.168 27.75 27.64 9.592 3.52582 5.09624 32.47 1485.73 1025.171 28.05 27.94 9.586 3.52576 5.09716 32.48 1485.71 1025.177 28.35 28.24 9.585 3.52583 5.09731 32.48 1485.72 1025.180 28.65 28.54 9.579 3.52533 5.09754 32.48 1485.70 1025.182 28.95 28.84 9.573 3.52598 5.09931 32.49 1485.70 1025.194 29.25 29.14 9.573 3.52489 5.09778 32.48 1485.69 1025.187 29.55 29.43 9.556 3.52356 5.09833 32.48 1485.64 1025.192 29.85 29.73 9.540 3.52310 5.10004 32.49 1485.59 1025.203 30.15 30.03 9.529 3.52280 5.10128 32.50 1485.57 1025.212 30.45 30.33 9.511 3.52285 5.10398 32.51 1485.53 1025.229 30.75 30.63 9.500 3.52205 5.10443 32.51 1485.49 1025.234 31.05 30.93 9.485 3.52115 5.10530 32.52 1485.45 1025.240 31.35 31.22 9.436 3.51823 5.10831 32.53 1485.29 1025.261 31.65 31.52 9.414 3.51708 5.10998 32.54 1485.22 1025.272 31.95 31.82 9.397 3.51662 5.11188 32.55 1485.18 1025.285 32.25 32.12 9.382 3.51626 5.11353 32.56 1485.14 1025.296 32.55 32.42 9.369 3.51642 5.11561 32.57 1485.12 1025.309 32.85 32.72 9.345 3.51604 5.11871 32.59 1485.05 1025.329 33.15 33.01 9.341 3.51462 5.11722 32.58 1485.03 1025.322 33.45 33.31 9.326 3.51387 5.11839 32.59 1484.99 1025.331 33.75 33.61 9.317 3.51359 5.11930 32.59 1484.97 1025.337 34.05 33.91 9.308 3.51379 5.12089 32.60 1484.95 1025.348 34.35 34.21 9.302 3.51307 5.12081 32.60 1484.93 1025.349 34.65 34.51 9.287 3.51265 5.12240 32.61 1484.89 1025.360 34.95 34.80 9.281 3.51206 5.12239 32.61 1484.88 1025.361 35.25 35.10 9.272 3.51166 5.12326 32.61 1484.85 1025.368 35.55 35.40 9.267 3.51169 5.12402 32.62 1484.84 1025.373 35.85 35.70 9.253 3.51099 5.12501 32.62 1484.80 1025.381 36.15 36.00 9.242 3.50993 5.12523 32.62 1484.77 1025.384 36.45 36.29 9.227 3.50973 5.12707 32.63 1484.73 1025.396 36.75 36.59 9.220 3.50908 5.12726 32.63 1484.71 1025.399 37.05 36.89 9.215 3.50931 5.12832 32.64 1484.70 1025.406 37.35 37.19 9.204 3.50912 5.12975 32.65 1484.68 1025.416 37.65 37.49 9.201 3.50880 5.12971 32.65 1484.67 1025.417 37.95 37.79 9.203 3.50878 5.12935 32.65 1484.68 1025.416 38.25 38.08 9.199 3.50935 5.13083 32.65 1484.68 1025.426 38.55 38.38 9.207 3.50944 5.12974 32.65 1484.71 1025.420 38.85 38.68 9.199 3.50736 5.12790 32.63 1484.67 1025.412 39.15 38.98 9.176 3.50688 5.13059 32.65 1484.61 1025.429 39.45 39.28 9.166 3.50724 5.13264 32.66 1484.59 1025.442 39.75 39.58 9.161 3.50697 5.13296 32.66 1484.58 1025.445 40.05 39.87 9.151 3.50605 5.13322 32.66 1484.54 1025.448 40.35 40.17 9.134 3.50679 5.13681 32.69 1484.52 1025.470 40.65 40.47 9.131 3.50533 5.13507 32.67 1484.50 1025.462 40.95 40.77 9.115 3.50448 5.13631 32.68 1484.45 1025.471 41.25 41.07 9.094 3.50418 5.13897 32.70 1484.40 1025.488 41.55 41.36 9.081 3.50461 5.14158 32.71 1484.37 1025.504 41.87 41.68 9.083 3.50446 5.14114 32.71 1484.38 1025.503