*2026/01/16 10:37:48.44 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/02/19 23:37:13.000 END TIME : UTC 2025/02/19 23:37:39.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 134 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 40.05 2 Depth metres 0.15 39.87 3 Temperature 'deg C (ITS90)' 8.52 9.304 4 Conductivity S/m 2.80015 3.37655 5 Conductance:Specific S/m 4.17686 4.92852 6 Salinity PSS-78 25.95 31.24 7 Speed:Sound m/s 1473.28 1483.18 8 Density kg/m^3 1020.105 1024.316 $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 : 58 LATITUDE : 49 46.83490 N ! (deg min) LONGITUDE : 126 38.61300 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250219_233713 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:25 134 134 MERGEHDR 1.3 2026/01/16 10:35:40 134 134 HDREDIT2 3.2 2026/01/16 10:36:10 ? ? REMOVECH 8.2 2026/01/16 10:36:38 134 134 CALIB 12.1 2026/01/16 10:37:12 134 134 CLEAN 5.3 2026/01/16 10:37:48 134 134 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:10 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 10:36:38 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:12 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 8.520 2.80015 4.17686 25.95 1473.28 1020.105 0.45 0.45 8.694 2.95230 4.38104 27.37 1475.69 1021.195 0.75 0.75 8.798 3.02876 4.48068 28.07 1476.95 1021.730 1.05 1.05 8.896 3.14238 4.63529 29.15 1478.66 1022.565 1.35 1.35 8.931 3.19817 4.71282 29.70 1479.46 1022.987 1.65 1.65 8.909 3.21962 4.74749 29.94 1479.67 1023.178 1.95 1.94 8.871 3.22302 4.75778 30.00 1479.62 1023.237 2.25 2.24 8.903 3.22575 4.75735 30.00 1479.74 1023.235 2.55 2.54 8.947 3.23380 4.76302 30.05 1479.97 1023.265 2.85 2.84 8.980 3.24757 4.77859 30.16 1480.24 1023.350 3.15 3.14 9.007 3.25897 4.79156 30.26 1480.46 1023.421 3.45 3.44 9.029 3.25989 4.78982 30.25 1480.53 1023.411 3.75 3.74 9.042 3.26161 4.79059 30.26 1480.59 1023.416 4.05 4.04 9.049 3.26463 4.79405 30.28 1480.66 1023.436 4.35 4.34 9.056 3.26462 4.79304 30.27 1480.68 1023.432 4.65 4.63 9.060 3.26495 4.79298 30.27 1480.70 1023.432 4.95 4.93 9.063 3.26590 4.79397 30.28 1480.72 1023.439 5.25 5.23 9.067 3.26738 4.79556 30.29 1480.76 1023.449 5.55 5.53 9.073 3.26835 4.79615 30.30 1480.79 1023.453 5.85 5.83 9.079 3.27199 4.80063 30.33 1480.86 1023.479 6.15 6.13 9.087 3.27340 4.80150 30.34 1480.90 1023.484 6.45 6.43 9.092 3.27820 4.80789 30.38 1480.98 1023.520 6.75 6.73 9.097 3.27919 4.80859 30.39 1481.01 1023.525 7.05 7.02 9.099 3.27941 4.80865 30.39 1481.02 1023.527 7.35 7.32 9.100 3.27918 4.80817 30.38 1481.03 1023.525 7.65 7.62 9.101 3.28005 4.80938 30.39 1481.05 1023.533 7.95 7.92 9.102 3.28124 4.81092 30.40 1481.07 1023.543 8.25 8.22 9.106 3.28831 4.82078 30.47 1481.17 1023.598 8.55 8.52 9.118 3.29579 4.83002 30.54 1481.30 1023.649 8.85 8.82 9.137 3.30230 4.83689 30.59 1481.44 1023.687 9.15 9.12 9.148 3.31205 4.84949 30.68 1481.60 1023.757 9.45 9.41 9.156 3.31677 4.85529 30.72 1481.68 1023.789 9.75 9.71 9.164 3.31783 4.85577 30.73 1481.72 1023.793 10.05 10.01 9.168 3.32082 4.85963 30.75 1481.77 1023.815 10.35 10.31 9.173 3.32170 4.86010 30.76 1481.81 1023.819 10.65 10.61 9.176 3.32231 4.86062 30.76 1481.82 1023.823 10.95 10.91 9.179 3.32563 4.86495 30.79 1481.88 1023.848 11.25 11.21 9.188 3.33074 4.87126 30.84 1481.97 1023.883 11.55 11.51 9.194 3.33476 4.87623 30.87 1482.04 1023.911 11.85 11.80 9.201 3.33577 4.87666 30.88 1482.08 1023.915 12.15 12.10 9.209 3.33911 4.88048 30.90 1482.15 1023.936 12.45 12.40 9.211 3.34096 4.88292 30.92 1482.18 1023.951 12.75 12.70 9.215 3.34194 4.88376 30.93 1482.21 1023.957 13.05 13.00 9.219 3.34370 4.88569 30.94 1482.25 1023.968 13.35 13.30 9.225 3.34593 4.88814 30.96 1482.29 1023.983 13.65 13.60 9.225 3.34696 4.88963 30.97 1482.31 1023.992 13.95 13.89 9.225 3.34885 4.89237 30.99 1482.34 1024.009 14.25 14.19 9.226 3.35020 4.89421 31.00 1482.36 1024.020 14.55 14.49 9.228 3.35143 4.89572 31.01 1482.39 1024.029 14.85 14.79 9.228 3.35135 4.89557 31.01 1482.40 1024.030 15.15 15.09 9.229 3.35212 4.89665 31.02 1482.41 1024.037 15.45 15.39 9.232 3.35230 4.89646 31.02 1482.43 1024.037 15.75 15.69 9.233 3.35302 4.89733 31.02 1482.44 1024.043 16.05 15.98 9.235 3.35336 4.89762 31.03 1482.46 1024.046 16.35 16.28 9.236 3.35375 4.89802 31.03 1482.47 1024.049 16.65 16.58 9.236 3.35369 4.89784 31.03 1482.47 1024.049 16.95 16.88 9.237 3.35420 4.89856 31.03 1482.49 1024.055 17.25 17.18 9.238 3.35441 4.89868 31.03 1482.50 1024.057 17.55 17.48 9.239 3.35490 4.89919 31.04 1482.51 1024.060 17.85 17.78 9.239 3.35554 4.90013 31.04 1482.52 1024.067 18.15 18.08 9.241 3.35609 4.90067 31.05 1482.54 1024.071 18.45 18.37 9.244 3.35620 4.90035 31.05 1482.56 1024.070 18.75 18.67 9.246 3.35663 4.90070 31.05 1482.57 1024.073 19.05 18.97 9.247 3.35690 4.90097 31.05 1482.58 1024.076 19.35 19.27 9.248 3.35759 4.90189 31.06 1482.60 1024.083 19.65 19.57 9.247 3.35737 4.90169 31.05 1482.60 1024.083 19.95 19.87 9.250 3.35849 4.90295 31.06 1482.62 1024.091 20.25 20.17 9.249 3.35826 4.90271 31.06 1482.62 1024.091 20.55 20.46 9.252 3.35833 4.90240 31.06 1482.64 1024.090 20.85 20.76 9.256 3.35895 4.90265 31.06 1482.66 1024.093 21.15 21.06 9.263 3.36005 4.90329 31.07 1482.70 1024.097 21.45 21.36 9.273 3.36159 4.90408 31.07 1482.75 1024.102 21.75 21.66 9.280 3.36261 4.90465 31.08 1482.78 1024.106 22.05 21.96 9.286 3.36369 4.90527 31.08 1482.82 1024.111 22.35 22.26 9.288 3.36411 4.90565 31.09 1482.83 1024.114 22.65 22.55 9.291 3.36510 4.90666 31.09 1482.86 1024.120 22.95 22.85 9.294 3.36538 4.90663 31.09 1482.87 1024.121 23.25 23.15 9.297 3.36604 4.90721 31.10 1482.89 1024.126 23.55 23.45 9.299 3.36559 4.90623 31.09 1482.90 1024.122 23.85 23.75 9.302 3.36679 4.90764 31.10 1482.92 1024.130 24.15 24.05 9.304 3.36725 4.90796 31.10 1482.94 1024.133 24.45 24.35 9.303 3.36764 4.90868 31.11 1482.95 1024.139 24.75 24.64 9.300 3.36715 4.90844 31.11 1482.94 1024.139 25.05 24.94 9.296 3.36619 4.90761 31.10 1482.92 1024.136 25.35 25.24 9.290 3.36617 4.90834 31.11 1482.91 1024.141 25.65 25.54 9.287 3.36624 4.90896 31.11 1482.91 1024.146 25.95 25.84 9.285 3.36669 4.90982 31.11 1482.91 1024.152 26.25 26.14 9.285 3.36682 4.91008 31.12 1482.92 1024.155 26.55 26.44 9.283 3.36661 4.90998 31.12 1482.92 1024.156 26.85 26.73 9.283 3.36586 4.90891 31.11 1482.91 1024.151 27.15 27.03 9.283 3.36683 4.91036 31.12 1482.93 1024.160 27.45 27.33 9.282 3.36717 4.91093 31.12 1482.94 1024.165 27.75 27.63 9.284 3.36729 4.91086 31.12 1482.95 1024.165 28.05 27.93 9.284 3.36732 4.91096 31.12 1482.95 1024.167 28.35 28.23 9.282 3.36694 4.91071 31.12 1482.94 1024.167 28.65 28.53 9.280 3.36786 4.91222 31.13 1482.96 1024.177 28.95 28.82 9.279 3.36687 4.91103 31.12 1482.95 1024.172 29.25 29.12 9.278 3.36717 4.91159 31.12 1482.95 1024.176 29.55 29.42 9.278 3.36695 4.91129 31.12 1482.95 1024.176 29.85 29.72 9.278 3.36784 4.91260 31.13 1482.97 1024.184 30.15 30.02 9.277 3.36736 4.91196 31.13 1482.97 1024.182 30.45 30.32 9.278 3.36779 4.91250 31.13 1482.98 1024.186 30.75 30.62 9.277 3.36797 4.91292 31.13 1482.98 1024.190 31.05 30.91 9.276 3.36801 4.91310 31.13 1482.99 1024.192 31.35 31.21 9.275 3.36868 4.91426 31.14 1483.00 1024.200 31.65 31.51 9.274 3.36886 4.91455 31.14 1483.00 1024.203 31.95 31.81 9.274 3.36943 4.91541 31.15 1483.01 1024.209 32.25 32.11 9.274 3.36980 4.91603 31.15 1483.02 1024.213 32.55 32.41 9.276 3.37103 4.91755 31.16 1483.05 1024.223 32.85 32.71 9.277 3.37182 4.91851 31.17 1483.07 1024.229 33.15 33.00 9.278 3.37162 4.91803 31.17 1483.07 1024.228 33.45 33.30 9.277 3.37214 4.91890 31.17 1483.08 1024.234 33.75 33.60 9.278 3.37172 4.91814 31.17 1483.08 1024.231 34.05 33.90 9.279 3.37236 4.91903 31.17 1483.10 1024.237 34.35 34.20 9.277 3.37205 4.91878 31.17 1483.09 1024.237 34.65 34.50 9.279 3.37244 4.91916 31.18 1483.11 1024.240 34.95 34.80 9.278 3.37258 4.91952 31.18 1483.11 1024.244 35.25 35.09 9.280 3.37295 4.91976 31.18 1483.12 1024.246 35.55 35.39 9.280 3.37326 4.92014 31.18 1483.13 1024.250 35.85 35.69 9.280 3.37353 4.92053 31.18 1483.14 1024.253 36.15 35.99 9.282 3.37362 4.92036 31.18 1483.15 1024.253 36.45 36.29 9.283 3.37381 4.92057 31.19 1483.16 1024.256 36.75 36.59 9.283 3.37412 4.92099 31.19 1483.17 1024.259 37.05 36.89 9.277 3.37363 4.92113 31.19 1483.16 1024.262 37.35 37.18 9.270 3.37416 4.92285 31.20 1483.15 1024.273 37.65 37.48 9.266 3.37446 4.92396 31.21 1483.15 1024.280 37.95 37.78 9.260 3.37432 4.92460 31.21 1483.13 1024.285 38.25 38.08 9.256 3.37409 4.92478 31.21 1483.13 1024.288 38.55 38.38 9.254 3.37479 4.92606 31.22 1483.13 1024.296 38.85 38.68 9.254 3.37431 4.92540 31.21 1483.13 1024.294 39.15 38.98 9.254 3.37485 4.92621 31.22 1483.14 1024.299 39.45 39.27 9.254 3.37580 4.92765 31.23 1483.16 1024.309 39.75 39.57 9.254 3.37611 4.92810 31.23 1483.17 1024.312 40.05 39.87 9.255 3.37655 4.92852 31.24 1483.18 1024.316