*2026/01/16 09:57:52.81 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/07/10 00:08:01.000 END TIME : UTC 2024/07/10 00:08:14.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 70 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 20.98 2 Depth metres 0.15 20.88 3 Temperature 'deg C (ITS90)' 10.721 13.644 4 Conductivity S/m 3.59684 3.85313 5 Conductance:Specific S/m 4.95477 5.04258 6 Salinity PSS-78 31.83 32.26 7 Speed:Sound m/s 1489.33 1498.95 8 Density kg/m^3 1023.987 1024.747 $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 : 171 LATITUDE : 49 49.09380 N ! (deg min) LONGITUDE : 126 59.69640 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240710_000801 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:02 70 70 MERGEHDR 1.3 2026/01/16 09:53:56 70 70 HDREDIT2 3.2 2026/01/16 09:55:07 ? ? REMOVECH 8.2 2026/01/16 09:56:19 70 70 CALIB 12.1 2026/01/16 09:56:52 70 70 CLEAN 5.3 2026/01/16 09:57:52 70 70 $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 13.644 3.85313 4.98545 32.14 1498.95 1024.052 0.45 0.45 13.367 3.81394 4.97033 32.01 1497.88 1024.006 0.75 0.75 13.260 3.80209 4.96879 31.99 1497.51 1024.013 1.05 1.05 13.229 3.79514 4.96369 31.95 1497.36 1023.990 1.35 1.34 13.231 3.79485 4.96308 31.94 1497.37 1023.987 1.65 1.64 13.217 3.79320 4.96269 31.94 1497.32 1023.988 1.95 1.94 13.207 3.79234 4.96283 31.94 1497.29 1023.991 2.25 2.24 13.180 3.79110 4.96476 31.95 1497.22 1024.007 2.55 2.54 13.125 3.79032 4.97091 31.99 1497.09 1024.049 2.85 2.84 13.067 3.78358 4.96963 31.97 1496.88 1024.051 3.15 3.14 12.980 3.78094 4.97751 32.02 1496.65 1024.106 3.45 3.43 12.815 3.76940 4.98401 32.05 1496.14 1024.164 3.75 3.73 12.690 3.74580 4.96929 31.94 1495.58 1024.098 4.05 4.03 12.634 3.72939 4.95477 31.83 1495.27 1024.026 4.35 4.33 12.538 3.72452 4.96095 31.86 1494.99 1024.072 4.65 4.63 12.407 3.71935 4.97147 31.92 1494.62 1024.147 4.95 4.93 12.307 3.71820 4.98329 32.00 1494.37 1024.224 5.25 5.23 12.264 3.71542 4.98523 32.01 1494.24 1024.241 5.55 5.52 12.233 3.71334 4.98667 32.02 1494.15 1024.254 5.85 5.82 12.184 3.71006 4.98874 32.02 1494.00 1024.272 6.15 6.12 12.148 3.70506 4.98693 32.01 1493.86 1024.267 6.45 6.42 12.097 3.70228 4.99000 32.02 1493.71 1024.291 6.75 6.72 12.026 3.69599 4.99103 32.02 1493.47 1024.305 7.05 7.02 11.957 3.68640 4.98739 31.99 1493.20 1024.293 7.35 7.32 11.887 3.67956 4.98756 31.99 1492.96 1024.303 7.65 7.61 11.819 3.67392 4.98915 31.99 1492.73 1024.320 7.95 7.91 11.775 3.67102 4.99124 32.00 1492.59 1024.337 8.25 8.21 11.735 3.66521 4.98868 31.98 1492.44 1024.328 8.55 8.51 11.668 3.65977 4.99044 31.98 1492.21 1024.346 8.85 8.81 11.562 3.65298 4.99558 32.01 1491.88 1024.386 9.15 9.11 11.453 3.64169 4.99508 31.99 1491.48 1024.395 9.45 9.41 11.367 3.63645 4.99964 32.01 1491.22 1024.429 9.75 9.70 11.328 3.63693 5.00562 32.05 1491.13 1024.467 10.05 10.00 11.289 3.63634 5.01020 32.08 1491.04 1024.497 10.35 10.30 11.286 3.63738 5.01208 32.09 1491.04 1024.509 10.65 10.60 11.294 3.63994 5.01458 32.11 1491.10 1024.524 10.95 10.90 11.288 3.64089 5.01667 32.13 1491.10 1024.537 11.25 11.20 11.286 3.64276 5.01958 32.15 1491.12 1024.555 11.55 11.49 11.291 3.64400 5.02055 32.15 1491.15 1024.561 11.85 11.79 11.296 3.64577 5.02224 32.17 1491.19 1024.571 12.15 12.09 11.305 3.64638 5.02180 32.16 1491.23 1024.569 12.45 12.39 11.314 3.64673 5.02111 32.16 1491.26 1024.566 12.75 12.69 11.309 3.64821 5.02384 32.18 1491.27 1024.582 13.05 12.99 11.313 3.64870 5.02392 32.18 1491.29 1024.584 13.35 13.29 11.301 3.64912 5.02618 32.19 1491.27 1024.599 13.65 13.58 11.278 3.64838 5.02830 32.21 1491.21 1024.614 13.95 13.88 11.240 3.64586 5.03013 32.21 1491.09 1024.628 14.25 14.18 11.161 3.63889 5.03150 32.22 1490.82 1024.644 14.55 14.48 11.152 3.63287 5.02448 32.16 1490.73 1024.608 14.85 14.78 11.114 3.62770 5.02258 32.15 1490.58 1024.601 15.15 15.08 11.045 3.62743 5.03180 32.20 1490.41 1024.660 15.45 15.37 10.989 3.62564 5.03716 32.24 1490.25 1024.695 15.75 15.67 10.980 3.62620 5.03921 32.25 1490.24 1024.709 16.05 15.97 10.969 3.62566 5.03994 32.25 1490.22 1024.715 16.35 16.27 10.964 3.62515 5.03994 32.25 1490.20 1024.717 16.65 16.57 10.957 3.62476 5.04038 32.25 1490.18 1024.721 16.95 16.87 10.950 3.62402 5.04030 32.25 1490.16 1024.722 17.25 17.17 10.943 3.62305 5.04000 32.25 1490.14 1024.723 17.55 17.46 10.935 3.62192 5.03957 32.24 1490.11 1024.722 17.85 17.76 10.916 3.62036 5.04005 32.25 1490.05 1024.728 18.15 18.06 10.904 3.62032 5.04172 32.26 1490.02 1024.739 18.45 18.36 10.908 3.62138 5.04258 32.26 1490.05 1024.745 18.75 18.66 10.901 3.62056 5.04237 32.26 1490.03 1024.745 19.05 18.96 10.908 3.62064 5.04161 32.26 1490.05 1024.742 19.35 19.25 10.905 3.62090 5.04233 32.26 1490.05 1024.747 19.65 19.55 10.912 3.61990 5.03997 32.24 1490.06 1024.735 19.95 19.85 10.904 3.61922 5.04008 32.24 1490.04 1024.738 20.25 20.15 10.896 3.61457 5.03477 32.21 1489.97 1024.710 20.55 20.45 10.767 3.60419 5.03844 32.22 1489.53 1024.742 20.98 20.88 10.721 3.59684 5.03463 32.18 1489.33 1024.727