*2026/01/16 10:37:49.70 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/03/11 18:46:09.000 END TIME : UTC 2025/03/11 18:46:34.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 129 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 38.41 2 Depth metres 0.15 38.35 3 Temperature 'deg C (ITS90)' 8.04 8.488 4 Conductivity S/m 2.59 2.96405 5 Conductance:Specific S/m 3.91946 4.43195 6 Salinity PSS-78 24.14 27.67 7 Speed:Sound m/s 1469.21 1475.71 8 Density kg/m^3 1018.754 1021.643 $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 : 77 LATITUDE : 49 16.57190 N ! (deg min) LONGITUDE : 125 48.52850 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250311_184609 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:26 129 129 MERGEHDR 1.3 2026/01/16 10:35:41 129 129 HDREDIT2 3.2 2026/01/16 10:36:11 ? ? REMOVECH 8.2 2026/01/16 10:36:38 129 129 CALIB 12.1 2026/01/16 10:37:13 129 129 CLEAN 5.3 2026/01/16 10:37:49 129 129 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:11 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 10:37:13 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 8.040 2.59000 3.91946 24.14 1469.21 1018.754 0.45 0.45 8.070 2.62101 3.96280 24.44 1469.69 1018.984 0.75 0.75 8.089 2.62774 3.97072 24.49 1469.84 1019.027 1.05 1.05 8.110 2.65104 4.00338 24.71 1470.20 1019.201 1.35 1.35 8.142 2.65867 4.01103 24.77 1470.40 1019.241 1.65 1.65 8.155 2.67026 4.02695 24.88 1470.59 1019.327 1.95 1.95 8.172 2.70186 4.07255 25.19 1471.04 1019.570 2.25 2.25 8.181 2.72140 4.10083 25.39 1471.32 1019.722 2.55 2.55 8.200 2.72890 4.10982 25.45 1471.48 1019.770 2.85 2.85 8.221 2.73905 4.12251 25.54 1471.67 1019.839 3.15 3.15 8.248 2.74794 4.13255 25.61 1471.87 1019.892 3.45 3.45 8.271 2.75704 4.14334 25.69 1472.06 1019.950 3.75 3.75 8.284 2.76388 4.15197 25.75 1472.19 1019.997 4.05 4.05 8.298 2.76934 4.15847 25.79 1472.30 1020.033 4.35 4.35 8.310 2.77782 4.16967 25.87 1472.45 1020.094 4.65 4.65 8.321 2.78423 4.17785 25.93 1472.57 1020.138 4.95 4.95 8.334 2.79100 4.18644 25.99 1472.70 1020.185 5.25 5.25 8.358 2.80563 4.20535 26.12 1472.96 1020.286 5.55 5.55 8.385 2.85125 4.27031 26.57 1473.61 1020.635 5.85 5.85 8.419 2.87824 4.30628 26.82 1474.06 1020.828 6.15 6.15 8.441 2.88783 4.31786 26.90 1474.25 1020.890 6.45 6.45 8.453 2.89122 4.32138 26.93 1474.33 1020.910 6.75 6.75 8.457 2.89168 4.32154 26.93 1474.35 1020.912 7.05 7.05 8.461 2.89267 4.32248 26.93 1474.38 1020.918 7.35 7.35 8.462 2.89316 4.32299 26.94 1474.40 1020.922 7.65 7.65 8.464 2.89372 4.32363 26.94 1474.41 1020.927 7.95 7.94 8.464 2.89483 4.32527 26.95 1474.43 1020.937 8.25 8.24 8.465 2.89589 4.32673 26.96 1474.45 1020.946 8.55 8.54 8.467 2.89616 4.32684 26.96 1474.47 1020.948 8.85 8.84 8.468 2.89881 4.33071 26.99 1474.51 1020.970 9.15 9.14 8.468 2.90064 4.33344 27.01 1474.54 1020.986 9.45 9.44 8.469 2.90246 4.33598 27.03 1474.57 1021.001 9.75 9.74 8.470 2.90285 4.33649 27.03 1474.58 1021.005 10.05 10.04 8.470 2.90336 4.33722 27.04 1474.59 1021.010 10.35 10.34 8.470 2.90391 4.33813 27.04 1474.60 1021.016 10.65 10.64 8.470 2.90420 4.33848 27.04 1474.61 1021.019 10.95 10.94 8.471 2.90563 4.34049 27.06 1474.64 1021.031 11.25 11.24 8.470 2.90663 4.34209 27.07 1474.65 1021.041 11.55 11.54 8.471 2.90749 4.34333 27.08 1474.67 1021.049 11.85 11.84 8.472 2.90834 4.34449 27.08 1474.69 1021.057 12.15 12.14 8.472 2.90893 4.34532 27.09 1474.70 1021.062 12.45 12.44 8.473 2.90976 4.34646 27.10 1474.72 1021.070 12.75 12.74 8.474 2.91067 4.34762 27.11 1474.74 1021.077 13.05 13.04 8.474 2.91114 4.34830 27.11 1474.75 1021.082 13.35 13.34 8.475 2.91193 4.34939 27.12 1474.77 1021.089 13.65 13.64 8.476 2.91242 4.35007 27.12 1474.78 1021.094 13.95 13.93 8.476 2.91332 4.35139 27.13 1474.79 1021.103 14.25 14.23 8.477 2.91450 4.35301 27.14 1474.82 1021.113 14.55 14.53 8.477 2.91523 4.35408 27.15 1474.83 1021.120 14.85 14.83 8.477 2.91500 4.35368 27.15 1474.83 1021.119 15.15 15.13 8.477 2.91602 4.35523 27.16 1474.85 1021.128 15.45 15.43 8.478 2.91616 4.35535 27.16 1474.86 1021.130 15.75 15.73 8.478 2.91645 4.35577 27.16 1474.87 1021.134 16.05 16.03 8.478 2.91697 4.35650 27.17 1474.88 1021.139 16.35 16.33 8.479 2.91735 4.35705 27.17 1474.89 1021.143 16.65 16.63 8.479 2.91805 4.35807 27.18 1474.91 1021.150 16.95 16.93 8.479 2.91933 4.35993 27.19 1474.93 1021.161 17.25 17.23 8.479 2.92288 4.36523 27.23 1474.98 1021.191 17.55 17.53 8.480 2.92745 4.37198 27.27 1475.04 1021.229 17.85 17.83 8.480 2.92954 4.37503 27.29 1475.07 1021.246 18.15 18.13 8.482 2.93137 4.37754 27.31 1475.11 1021.261 18.45 18.43 8.483 2.93229 4.37883 27.32 1475.12 1021.269 18.75 18.73 8.483 2.93255 4.37921 27.32 1475.13 1021.273 19.05 19.03 8.483 2.93280 4.37956 27.32 1475.14 1021.276 19.35 19.33 8.483 2.93312 4.37997 27.33 1475.15 1021.279 19.65 19.62 8.484 2.93386 4.38104 27.33 1475.17 1021.286 19.95 19.92 8.484 2.93422 4.38155 27.34 1475.18 1021.290 20.25 20.22 8.485 2.93471 4.38217 27.34 1475.19 1021.295 20.55 20.52 8.486 2.93440 4.38159 27.34 1475.19 1021.293 20.85 20.82 8.486 2.93491 4.38231 27.34 1475.21 1021.298 21.15 21.12 8.486 2.93482 4.38214 27.34 1475.21 1021.299 21.45 21.42 8.487 2.93485 4.38210 27.34 1475.22 1021.300 21.75 21.72 8.487 2.93524 4.38270 27.35 1475.23 1021.304 22.05 22.02 8.487 2.93540 4.38286 27.35 1475.23 1021.306 22.35 22.32 8.487 2.93570 4.38328 27.35 1475.24 1021.310 22.65 22.62 8.488 2.93560 4.38308 27.35 1475.25 1021.310 22.95 22.92 8.488 2.93502 4.38217 27.34 1475.25 1021.306 23.25 23.22 8.488 2.93546 4.38285 27.35 1475.26 1021.311 23.55 23.52 8.488 2.93603 4.38367 27.35 1475.27 1021.317 23.85 23.82 8.488 2.93775 4.38625 27.37 1475.30 1021.332 24.15 24.12 8.488 2.93856 4.38749 27.38 1475.31 1021.340 24.45 24.42 8.487 2.93955 4.38906 27.39 1475.33 1021.350 24.75 24.72 8.487 2.93973 4.38937 27.39 1475.33 1021.353 25.05 25.01 8.487 2.94029 4.39024 27.40 1475.34 1021.359 25.35 25.31 8.487 2.94115 4.39145 27.40 1475.36 1021.367 25.65 25.61 8.487 2.94102 4.39131 27.40 1475.36 1021.367 25.95 25.91 8.486 2.94104 4.39146 27.40 1475.36 1021.370 26.25 26.21 8.485 2.94111 4.39162 27.40 1475.37 1021.372 26.55 26.51 8.485 2.94125 4.39187 27.41 1475.37 1021.374 26.85 26.81 8.486 2.94110 4.39156 27.40 1475.38 1021.374 27.15 27.11 8.485 2.94133 4.39199 27.41 1475.38 1021.378 27.45 27.41 8.485 2.94153 4.39235 27.41 1475.39 1021.381 27.75 27.71 8.485 2.94180 4.39273 27.41 1475.40 1021.384 28.05 28.01 8.485 2.94139 4.39210 27.41 1475.40 1021.382 28.35 28.31 8.483 2.94150 4.39256 27.41 1475.40 1021.386 28.65 28.61 8.480 2.94215 4.39393 27.42 1475.40 1021.395 28.95 28.91 8.478 2.94233 4.39446 27.42 1475.40 1021.399 29.25 29.21 8.476 2.94247 4.39496 27.43 1475.40 1021.403 29.55 29.51 8.476 2.94292 4.39563 27.43 1475.42 1021.408 29.85 29.81 8.475 2.94445 4.39797 27.45 1475.44 1021.422 30.15 30.10 8.476 2.94400 4.39724 27.44 1475.44 1021.419 30.45 30.40 8.475 2.94449 4.39803 27.45 1475.45 1021.425 30.75 30.70 8.475 2.94459 4.39825 27.45 1475.45 1021.427 31.05 31.00 8.474 2.94478 4.39863 27.45 1475.46 1021.430 31.35 31.30 8.474 2.94402 4.39745 27.44 1475.45 1021.425 31.65 31.60 8.475 2.94520 4.39914 27.45 1475.47 1021.436 31.95 31.90 8.475 2.94502 4.39888 27.45 1475.48 1021.436 32.25 32.20 8.473 2.94551 4.39981 27.46 1475.48 1021.442 32.55 32.50 8.473 2.94593 4.40045 27.46 1475.49 1021.447 32.85 32.80 8.471 2.94638 4.40142 27.47 1475.50 1021.453 33.15 33.10 8.469 2.94686 4.40231 27.47 1475.50 1021.459 33.45 33.40 8.469 2.94702 4.40260 27.48 1475.51 1021.462 33.75 33.70 8.468 2.94806 4.40426 27.49 1475.53 1021.473 34.05 34.00 8.469 2.94887 4.40542 27.49 1475.54 1021.480 34.35 34.30 8.468 2.94862 4.40511 27.49 1475.54 1021.480 34.65 34.60 8.469 2.94914 4.40581 27.50 1475.56 1021.485 34.95 34.89 8.469 2.94940 4.40618 27.50 1475.56 1021.488 35.25 35.19 8.468 2.95032 4.40763 27.51 1475.58 1021.497 35.55 35.49 8.468 2.95217 4.41050 27.53 1475.60 1021.514 35.85 35.79 8.467 2.95371 4.41290 27.55 1475.63 1021.528 36.15 36.09 8.464 2.95643 4.41727 27.57 1475.66 1021.553 36.45 36.39 8.461 2.95760 4.41941 27.59 1475.67 1021.566 36.75 36.69 8.459 2.95845 4.42099 27.60 1475.68 1021.576 37.05 36.99 8.457 2.95963 4.42304 27.61 1475.69 1021.588 37.35 37.29 8.452 2.96148 4.42645 27.64 1475.71 1021.608 37.65 37.59 8.445 2.96223 4.42848 27.65 1475.70 1021.621 37.95 37.89 8.440 2.96405 4.43188 27.67 1475.71 1021.641 38.25 38.19 8.438 2.96395 4.43195 27.67 1475.71 1021.642 38.41 38.35 8.438 2.96389 4.43194 27.67 1475.71 1021.643