*2021/04/21 13:45:24.75 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2020/02/21 14:35:51.000 TIME INCREMENT : 0 0 0 0.416667E-01 0 ! (day hr min sec ms) NUMBER OF RECORDS : 110 DATA DESCRIPTION : CTD FILE TYPE : ASCII CRC : E03F80FA NUMBER OF CHANNELS : 10 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ----------------------------- --------------- -------------- -------------- 1 Pressure:CTD dbar 2.5 110.9 2 Temperature:CTD deg_C_(ITS90) 6.6905 6.9058 3 Salinity:CTD PSS-78 31.5084 31.7197 4 Sigma-t:CTD kg/m^3 24.7352 24.8739 5 Transmissivity:CTD:650 %/m 31.1 48.6 6 Transmissivity:CTD:530 %/m 47.3 77.9 7 Oxygen:Dissolved:CTD:Volume ml/l 6.6 6.76 8 Oxygen:Dissolved:CTD:Mass µmol/kg 287.6 294.6 9 Fluorescence:CTD:Seapoint mg/m^3 0.249 0.398 10 PAR:CTD µE/m^2/sec 0 0.1 $END $TABLE: CHANNEL DETAIL ! No Pad Start Width Format Type Decimal_Places !--- ---- ----- ----- ------ ---- -------------- 1 -99 ' ' 7 F ' ' 1 2 -99 ' ' 9 F ' ' 4 3 -99 ' ' 9 F ' ' 4 4 -99 ' ' 9 F R4 4 5 -99 ' ' 6 F ' ' 1 6 -99 ' ' 6 F ' ' 1 7 -99 ' ' 7 F ' ' 2 8 -99 ' ' 6 F ' ' 1 9 -99 ' ' 8 F ' ' 3 10 -99 ' ' 7 F ' ' 1 $END *ADMINISTRATION MISSION : 2020-001 AGENCY : IOS, Ocean Sciences Division, Sidney BC COUNTRY : Canada PROJECT : Line P SCIENTIST : Robert M. PLATFORM : John P. Tully *LOCATION GEOGRAPHIC AREA : North-East Pacific STATION : CH25 EVENT NUMBER : 113 LATITUDE : 54 8.88000 N ! (deg min) LONGITUDE : 130 26.26000 W ! (deg min) WATER DEPTH : 119 *INSTRUMENT TYPE : Sea-Bird CTD MODEL : SBE-911plus SERIAL NUMBER : 0443 LOCATION : Mid-ship ! custom item *COMMENTS CTDEDIT was used to remove records corrupted by shed wakes; salinity was cleaned. Data Processing Notes: ---------------------- Transmissivity, Fluorescence and PAR data are nominal and unedited except that some records were removed in editing temperature and salinity. There were 2 WetLabs CStar transmissometers in use during this cruise: Transmissometer:CTD:530 refers to sensor #1883DG (530nm - green) Transmissometer:CTD:650 refers to sensor #1185DR (650nm - red) For comparison with other Institute of Ocean Sciences cruises, note that the transmissometer wavelength is 650 nm unless otherwise stated. NOTE: While the CTD fluorescence data are expressed in concentration units, they do not always compare well to extracted chlorophyll samples, particularly for casts far from shore. It is recommended that users check extracted chlorophyll values where available. Oxygen:Dissolved:CTD was calibrated using the method described in Sea-Bird Application Note #64-2, June 2012 revision (Sea-Bird_64-2_Jun2012.pdf), except that a small offset in the fit was allowed. The Oxygen:Dissolved:CTD sensor has a fairly long response time so data accuracy is not as high when it is in motion as it is during stops for bottles. This will be especially true when vertical dissolved oxygen gradients are large. To get an estimate of the accuracy of the Oxygen:Dissolved:CTD data during downcasts (after recalibration) a rough comparison was made between downcast Oxygen:Dissolved:CTD data and upcast titrated samples. Some of the difference will be due to problems with flushing of Niskin bottles and/or analysis errors, so the following statement likely underestimates Oxygen:Dissolved:CTD accuracy. Downcast (CTD files) Oxygen:Dissolved:CTD data are considered, very roughly, to be: ±0.30 ml/l from 0 to 250 dbar (higher in areas of very large DO gradients). ±0.20 ml/l from 250 to 400 dbar. ±0.04 ml/l below 400 dbar. For casts 0089 to 0120 there was no 10 dbar soak so data from channels Oxygen:Dissolved:CTD may have been affected by bubbles in the top 10 to 15 dbar. For details on the processing see document: 2020-001-proc.pdf. !--1--- ---2---- ---3---- ---4---- --5-- --6-- --7--- --8-- ---9--- --10-- !Pressu Temperat Salinity Sigma-t: Trans Trans Oxygen Oxyge Fluores PAR: !re:CTD ure:CTD :CTD CTD missi missi :Disso n:Dis cence: CTD ! vity: vity: lved: solve CTD: ! CTD: CTD: CTD: d:CTD Seapoin ! 650 530 Volume :Mass t !------ -------- -------- -------- ----- ----- ------ ----- ------- ------ *END OF HEADER 2.5 6.6905 31.5084 24.7352 48.5 77.9 6.74 293.9 0.388 0.1 2.9 6.6927 31.5089 24.7353 48.6 77.7 6.74 293.8 0.389 0.1 4.0 6.6952 31.5095 24.7355 48.6 77.6 6.74 293.8 0.381 0.0 5.2 6.6965 31.5102 24.7359 48.5 77.6 6.75 294.1 0.394 0.0 6.0 6.7020 31.5128 24.7372 48.5 77.4 6.75 294.2 0.386 0.0 7.0 6.7011 31.5121 24.7368 48.5 77.4 6.74 293.7 0.398 0.0 8.0 6.7020 31.5126 24.7370 48.5 77.4 6.74 293.4 0.380 0.0 9.0 6.7017 31.5128 24.7372 48.5 77.4 6.74 293.8 0.381 0.0 10.0 6.7020 31.5129 24.7373 48.5 77.4 6.75 294.2 0.369 0.0 11.0 6.7026 31.5133 24.7375 48.5 77.6 6.75 294.2 0.378 0.0 12.0 6.7056 31.5146 24.7382 48.5 77.3 6.76 294.6 0.377 0.0 13.0 6.7069 31.5149 24.7382 48.5 77.6 6.76 294.4 0.383 0.0 14.0 6.7104 31.5168 24.7393 48.4 77.3 6.76 294.3 0.381 0.0 15.0 6.7146 31.5221 24.7429 48.4 77.2 6.75 294.1 0.377 0.0 16.0 6.7151 31.5227 24.7433 48.4 77.3 6.74 293.8 0.384 0.0 17.0 6.7173 31.5243 24.7443 48.3 77.3 6.75 294.1 0.372 0.0 18.0 6.7181 31.5255 24.7451 48.3 77.2 6.75 294.2 0.369 0.0 19.0 6.7180 31.5254 24.7451 48.4 77.3 6.75 294.2 0.374 0.0 20.0 6.7190 31.5268 24.7461 48.3 77.2 6.76 294.5 0.372 0.0 21.0 6.7233 31.5338 24.7510 48.2 77.2 6.76 294.3 0.372 0.0 22.0 6.7287 31.5418 24.7566 48.1 76.9 6.75 294.1 0.373 0.0 23.0 6.7301 31.5433 24.7576 48.0 76.7 6.75 294.2 0.380 0.0 24.0 6.7326 31.5453 24.7589 47.9 76.6 6.75 294.2 0.375 0.0 25.0 6.7339 31.5462 24.7594 47.8 76.4 6.75 294.0 0.376 0.0 26.0 6.7342 31.5463 24.7595 47.8 76.3 6.75 293.9 0.387 0.0 27.0 6.7336 31.5458 24.7592 47.8 76.3 6.75 294.1 0.370 0.0 28.0 6.7334 31.5456 24.7590 47.8 76.0 6.75 294.0 0.368 0.0 29.0 6.7377 31.5490 24.7612 47.5 75.9 6.74 293.8 0.378 0.0 30.0 6.7405 31.5511 24.7624 47.5 75.6 6.75 294.0 0.372 0.0 31.0 6.7409 31.5519 24.7630 47.5 75.4 6.74 293.7 0.381 0.0 32.0 6.7412 31.5525 24.7635 47.4 75.6 6.74 293.5 0.367 0.0 33.0 6.7440 31.5546 24.7648 47.3 75.4 6.74 293.8 0.378 0.0 34.0 6.7447 31.5552 24.7651 47.2 75.1 6.74 293.8 0.368 0.0 35.0 6.7459 31.5571 24.7665 47.2 75.1 6.73 293.2 0.367 0.0 36.0 6.7474 31.5591 24.7679 47.1 75.0 6.73 293.2 0.366 0.0 37.0 6.7477 31.5596 24.7682 47.1 74.7 6.74 293.5 0.364 0.0 38.0 6.7478 31.5596 24.7682 47.0 74.7 6.74 293.7 0.371 0.0 39.0 6.7478 31.5595 24.7681 47.0 74.4 6.75 293.9 0.367 0.0 40.0 6.7478 31.5593 24.7680 47.1 74.6 6.75 294.0 0.364 0.0 41.0 6.7481 31.5596 24.7682 47.1 74.7 6.74 293.5 0.368 0.0 42.0 6.7491 31.5613 24.7694 47.1 74.6 6.74 293.6 0.367 0.0 43.0 6.7488 31.5609 24.7691 47.1 74.7 6.74 293.5 0.363 0.0 44.0 6.7489 31.5612 24.7693 47.1 74.7 6.73 293.3 0.360 0.0 45.0 6.7486 31.5614 24.7695 47.1 74.8 6.73 293.3 0.358 0.0 46.0 6.7484 31.5613 24.7695 47.1 74.8 6.73 293.4 0.364 0.0 47.0 6.7484 31.5610 24.7692 47.2 74.8 6.74 293.5 0.367 0.0 48.0 6.7476 31.5615 24.7697 47.1 74.7 6.74 293.6 0.381 0.0 49.0 6.7474 31.5614 24.7697 47.2 74.7 6.75 293.9 0.374 0.0 50.0 6.7472 31.5621 24.7703 47.2 74.8 6.75 294.0 0.374 0.0 51.0 6.7470 31.5622 24.7704 47.3 74.8 6.74 293.8 0.365 0.0 52.0 6.7467 31.5624 24.7706 47.3 75.0 6.75 293.9 0.367 0.0 53.0 6.7466 31.5626 24.7707 47.3 74.8 6.75 293.9 0.389 0.0 54.0 6.7466 31.5626 24.7707 47.3 75.0 6.74 293.6 0.381 0.0 55.0 6.7467 31.5626 24.7707 47.4 75.3 6.74 293.7 0.392 0.0 56.0 6.7461 31.5633 24.7713 47.3 75.3 6.74 293.8 0.395 0.0 57.0 6.7463 31.5633 24.7713 47.4 75.1 6.74 293.7 0.376 0.0 58.0 6.7465 31.5634 24.7714 47.4 75.1 6.74 293.8 0.380 0.0 59.0 6.7464 31.5646 24.7723 47.5 75.3 6.74 293.6 0.381 0.0 60.0 6.7469 31.5652 24.7727 47.4 75.4 6.74 293.8 0.380 0.0 61.0 6.7477 31.5663 24.7735 47.5 75.4 6.74 293.8 0.379 0.0 62.0 6.7484 31.5670 24.7740 47.5 75.4 6.74 293.8 0.372 0.0 63.0 6.7490 31.5677 24.7744 47.5 75.3 6.74 293.5 0.374 0.0 64.0 6.7499 31.5685 24.7749 47.5 75.4 6.74 293.5 0.383 0.0 65.0 6.7509 31.5694 24.7755 47.4 75.6 6.74 293.6 0.377 0.0 66.0 6.7536 31.5722 24.7774 47.4 75.6 6.74 293.7 0.373 0.0 67.0 6.7555 31.5743 24.7788 47.3 75.4 6.73 293.3 0.366 0.0 68.0 6.7600 31.5788 24.7818 47.4 75.6 6.74 293.5 0.373 0.0 69.0 6.7673 31.5849 24.7856 47.5 75.4 6.74 293.4 0.359 0.0 70.0 6.7680 31.5855 24.7860 47.5 75.3 6.74 293.4 0.369 0.0 71.0 6.7688 31.5870 24.7871 47.6 75.4 6.74 293.4 0.364 0.0 72.0 6.7788 31.5964 24.7932 47.3 75.7 6.72 293.0 0.348 0.0 73.0 6.7928 31.6067 24.7995 46.3 75.4 6.71 292.3 0.337 0.0 74.0 6.8073 31.6170 24.8058 45.5 74.1 6.69 291.4 0.340 0.0 75.0 6.8163 31.6231 24.8094 44.4 72.5 6.68 291.0 0.317 0.0 76.0 6.8209 31.6260 24.8111 43.7 70.5 6.67 290.5 0.309 0.0 77.0 6.8243 31.6284 24.8125 43.2 69.1 6.67 290.7 0.303 0.0 78.0 6.8336 31.6335 24.8154 43.1 68.2 6.68 290.8 0.295 0.0 79.0 6.8440 31.6380 24.8176 43.4 67.4 6.67 290.5 0.288 0.0 80.0 6.8465 31.6399 24.8187 43.2 67.4 6.66 290.3 0.284 0.0 81.0 6.8474 31.6412 24.8196 42.8 67.4 6.66 290.0 0.282 0.0 82.0 6.8538 31.6451 24.8219 42.5 66.9 6.65 289.8 0.277 0.0 83.0 6.8554 31.6477 24.8237 41.9 66.4 6.64 289.4 0.279 0.0 84.0 6.8559 31.6488 24.8245 41.0 65.5 6.64 289.4 0.285 0.0 85.0 6.8568 31.6496 24.8250 40.7 64.2 6.64 289.3 0.277 0.0 86.0 6.8632 31.6538 24.8275 40.3 62.8 6.63 288.9 0.273 0.0 87.0 6.8668 31.6568 24.8294 39.7 62.0 6.62 288.5 0.270 0.0 88.0 6.8729 31.6621 24.8328 39.0 61.3 6.62 288.4 0.271 0.0 89.0 6.8769 31.6658 24.8352 38.7 60.2 6.61 288.2 0.260 0.0 90.0 6.8793 31.6692 24.8375 38.5 59.0 6.62 288.6 0.267 0.0 91.0 6.8802 31.6713 24.8391 38.5 58.6 6.62 288.6 0.259 0.0 92.0 6.8807 31.6719 24.8395 38.7 58.4 6.62 288.6 0.257 0.0 93.0 6.8797 31.6731 24.8406 38.6 58.6 6.63 288.8 0.271 0.0 94.0 6.8706 31.6730 24.8417 39.0 58.9 6.64 289.1 0.271 0.0 95.0 6.8712 31.6749 24.8431 38.9 59.2 6.63 289.0 0.272 0.0 96.0 6.8790 31.6794 24.8456 38.5 59.4 6.63 288.8 0.263 0.0 97.0 6.8806 31.6864 24.8509 37.8 58.6 6.63 288.9 0.274 0.0 98.0 6.8741 31.6874 24.8525 37.6 57.9 6.64 289.3 0.269 0.0 99.0 6.8750 31.6881 24.8530 37.5 57.0 6.64 289.4 0.265 0.0 100.0 6.8777 31.6902 24.8543 36.9 56.1 6.64 289.2 0.268 0.0 101.0 6.8805 31.6919 24.8553 36.5 55.8 6.64 289.2 0.265 0.0 102.0 6.8818 31.6933 24.8562 36.2 55.0 6.63 288.9 0.262 0.0 103.0 6.8850 31.6955 24.8575 36.0 54.3 6.62 288.6 0.267 0.0 104.0 6.8877 31.6977 24.8589 35.6 54.3 6.63 288.9 0.257 0.0 105.0 6.8886 31.6992 24.8600 35.3 53.8 6.62 288.5 0.258 0.0 106.0 6.8974 31.7085 24.8661 34.5 53.1 6.61 287.7 0.258 0.0 107.0 6.8977 31.7088 24.8663 33.7 52.1 6.61 287.7 0.255 0.0 108.0 6.8986 31.7096 24.8668 33.4 50.5 6.61 287.7 0.251 0.0 109.0 6.9021 31.7137 24.8696 32.9 49.5 6.61 287.9 0.251 0.0 110.0 6.9054 31.7182 24.8727 32.3 48.9 6.61 287.8 0.249 0.0 110.9 6.9058 31.7197 24.8739 31.1 47.3 6.60 287.6 0.256 0.0