*2021/04/21 13:45:24.67 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2020/02/21 13:13:12.000 TIME INCREMENT : 0 0 0 0.416667E-01 0 ! (day hr min sec ms) NUMBER OF RECORDS : 95 DATA DESCRIPTION : CTD FILE TYPE : ASCII CRC : 8D154A65 NUMBER OF CHANNELS : 10 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ----------------------------- --------------- -------------- -------------- 1 Pressure:CTD dbar 3.1 96.7 2 Temperature:CTD deg_C_(ITS90) 6.5648 6.931 3 Salinity:CTD PSS-78 31.1559 31.6743 4 Sigma-t:CTD kg/m^3 24.4722 24.8348 5 Transmissivity:CTD:650 %/m 23.3 45.5 6 Transmissivity:CTD:530 %/m 33 71.5 7 Oxygen:Dissolved:CTD:Volume ml/l 6.46 6.75 8 Oxygen:Dissolved:CTD:Mass µmol/kg 281.2 294.1 9 Fluorescence:CTD:Seapoint mg/m^3 0.2 0.404 10 PAR:CTD µE/m^2/sec 0 0 $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 : CH23 EVENT NUMBER : 111 LATITUDE : 54 11.46000 N ! (deg min) LONGITUDE : 130 23.51000 W ! (deg min) WATER DEPTH : 100 *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. 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 3.1 6.5648 31.1576 24.4747 45.1 70.8 6.75 294.1 0.400 0.0 4.0 6.5731 31.1587 24.4745 45.3 71.1 6.74 293.5 0.395 0.0 5.0 6.5769 31.1593 24.4745 45.3 71.1 6.72 292.9 0.398 0.0 6.0 6.5774 31.1600 24.4750 45.3 71.1 6.73 293.3 0.391 0.0 7.0 6.5766 31.1589 24.4742 45.3 71.0 6.74 293.6 0.396 0.0 8.0 6.5767 31.1595 24.4747 45.3 71.1 6.74 293.6 0.397 0.0 9.0 6.5759 31.1584 24.4739 45.4 71.3 6.73 293.5 0.395 0.0 10.0 6.5757 31.1578 24.4735 45.4 71.4 6.74 293.6 0.398 0.0 11.0 6.5763 31.1584 24.4739 45.4 71.4 6.74 293.8 0.397 0.0 12.0 6.5755 31.1578 24.4735 45.5 71.4 6.74 293.6 0.397 0.0 13.0 6.5747 31.1567 24.4727 45.5 71.5 6.73 293.3 0.396 0.0 14.0 6.5742 31.1559 24.4722 45.5 71.5 6.74 293.5 0.390 0.0 15.0 6.5748 31.1565 24.4726 45.5 71.5 6.74 293.6 0.396 0.0 16.0 6.5787 31.1595 24.4744 45.3 71.3 6.74 293.6 0.393 0.0 17.0 6.5816 31.1616 24.4757 45.2 71.0 6.73 293.3 0.394 0.0 18.0 6.5827 31.1627 24.4765 45.1 71.0 6.73 293.3 0.389 0.0 19.0 6.5857 31.1653 24.4781 44.8 70.5 6.74 293.7 0.383 0.0 20.0 6.5843 31.1642 24.4774 45.1 70.4 6.74 293.8 0.394 0.0 21.0 6.5829 31.1623 24.4761 45.1 70.8 6.74 293.7 0.404 0.0 22.0 6.5847 31.1634 24.4768 44.9 70.4 6.73 293.4 0.384 0.0 23.0 6.5817 31.1589 24.4736 45.1 70.5 6.74 293.6 0.390 0.0 24.0 6.5806 31.1574 24.4726 45.3 70.8 6.73 293.5 0.388 0.0 25.0 6.5822 31.1593 24.4739 45.2 71.0 6.74 293.7 0.396 0.0 26.0 6.5826 31.1596 24.4740 44.9 70.5 6.74 293.8 0.391 0.0 27.0 6.5841 31.1618 24.4756 45.0 70.5 6.74 293.8 0.391 0.0 28.0 6.5858 31.1643 24.4773 44.6 70.0 6.74 293.5 0.390 0.0 29.0 6.5886 31.1681 24.4800 44.5 70.0 6.73 293.4 0.391 0.0 30.0 6.5883 31.1681 24.4800 44.6 69.8 6.74 293.7 0.403 0.0 31.0 6.5906 31.1707 24.4818 44.5 69.5 6.75 294.0 0.388 0.0 32.0 6.5915 31.1718 24.4825 44.4 69.7 6.74 293.9 0.392 0.0 33.0 6.5900 31.1706 24.4818 44.6 69.8 6.74 293.5 0.387 0.0 34.0 6.5892 31.1695 24.4810 44.6 70.0 6.74 293.7 0.386 0.0 35.0 6.5885 31.1688 24.4805 44.6 69.8 6.74 293.8 0.392 0.0 36.0 6.5899 31.1717 24.4827 44.5 69.8 6.74 293.7 0.389 0.0 37.0 6.5907 31.1730 24.4836 44.6 69.8 6.73 293.4 0.391 0.0 38.0 6.5913 31.1745 24.4847 44.6 69.7 6.74 293.6 0.394 0.0 39.0 6.5914 31.1746 24.4848 44.5 69.7 6.74 293.8 0.384 0.0 40.0 6.5922 31.1764 24.4861 44.4 69.5 6.74 293.6 0.385 0.0 41.0 6.5948 31.1788 24.4876 44.4 69.1 6.73 293.4 0.384 0.0 42.0 6.5953 31.1793 24.4880 44.4 69.4 6.74 293.5 0.379 0.0 43.0 6.5954 31.1793 24.4880 44.4 69.4 6.74 293.6 0.385 0.0 44.0 6.5957 31.1798 24.4883 44.3 69.4 6.74 293.5 0.379 0.0 45.0 6.5955 31.1806 24.4890 44.2 69.2 6.73 293.3 0.379 0.0 46.0 6.5945 31.1807 24.4892 44.2 68.8 6.73 293.4 0.381 0.0 47.0 6.5941 31.1794 24.4882 44.2 69.1 6.74 293.6 0.380 0.0 48.0 6.5941 31.1795 24.4883 44.2 68.9 6.74 293.6 0.382 0.0 49.0 6.5942 31.1797 24.4884 44.2 68.9 6.74 293.7 0.382 0.0 50.0 6.5925 31.1832 24.4914 44.3 69.1 6.75 294.0 0.388 0.0 51.0 6.5943 31.1840 24.4918 44.3 69.1 6.75 294.0 0.391 0.0 52.0 6.5948 31.1846 24.4922 44.2 68.7 6.74 293.5 0.388 0.0 53.0 6.5942 31.1856 24.4931 44.1 69.1 6.74 293.6 0.385 0.0 54.0 6.5952 31.1872 24.4942 43.7 68.9 6.73 293.2 0.391 0.0 55.0 6.5922 31.1853 24.4931 43.8 68.5 6.73 293.2 0.391 0.0 56.0 6.5910 31.1847 24.4928 44.2 68.7 6.74 293.6 0.393 0.0 57.0 6.5936 31.1867 24.4940 44.0 68.9 6.74 293.7 0.390 0.0 58.0 6.6003 31.1914 24.4969 43.6 68.7 6.73 293.4 0.387 0.0 59.0 6.6002 31.1913 24.4968 43.7 68.2 6.74 293.5 0.389 0.0 60.0 6.6012 31.1923 24.4975 43.9 68.2 6.73 293.4 0.388 0.0 61.0 6.6060 31.1955 24.4994 43.1 67.9 6.73 293.2 0.377 0.0 62.0 6.6110 31.2005 24.5027 42.5 66.9 6.73 293.2 0.374 0.0 63.0 6.6143 31.2046 24.5055 42.2 65.8 6.73 293.2 0.379 0.0 64.0 6.6144 31.2043 24.5053 42.1 65.3 6.73 293.4 0.372 0.0 65.0 6.6158 31.2057 24.5062 42.0 64.9 6.73 293.4 0.378 0.0 66.0 6.6154 31.2049 24.5056 42.0 64.9 6.73 293.3 0.377 0.0 67.0 6.6155 31.2051 24.5058 42.0 64.8 6.73 293.3 0.370 0.0 68.0 6.6144 31.2035 24.5046 40.9 64.5 6.73 293.2 0.373 0.0 69.0 6.6373 31.2425 24.5325 38.8 62.5 6.71 292.5 0.359 0.0 70.0 6.6664 31.2858 24.5629 36.9 59.4 6.68 291.2 0.335 0.0 71.0 6.6983 31.3296 24.5934 35.3 56.0 6.66 290.0 0.328 0.0 72.0 6.7093 31.3443 24.6035 34.9 53.4 6.64 289.5 0.311 0.0 73.0 6.7317 31.3810 24.6296 33.7 51.5 6.63 288.9 0.313 0.0 74.0 6.7401 31.3943 24.6390 33.1 49.7 6.63 288.9 0.301 0.0 75.0 6.7491 31.4071 24.6479 32.7 48.6 6.63 288.8 0.303 0.0 76.0 6.7624 31.4308 24.6649 32.1 47.9 6.62 288.6 0.290 0.0 77.0 6.7816 31.4655 24.6898 30.9 46.2 6.61 288.1 0.272 0.0 78.0 6.8078 31.5104 24.7218 30.9 44.9 6.60 287.6 0.259 0.0 79.0 6.8221 31.5315 24.7365 32.1 46.2 6.60 287.6 0.255 0.0 80.0 6.8456 31.5715 24.7650 34.2 49.8 6.59 287.0 0.244 0.0 81.0 6.8775 31.6247 24.8027 35.6 53.1 6.57 286.4 0.230 0.0 82.0 6.8851 31.6319 24.8074 36.3 55.1 6.56 285.9 0.225 0.0 83.0 6.8959 31.6389 24.8115 35.9 54.8 6.55 285.3 0.215 0.0 84.0 6.8991 31.6414 24.8131 35.2 53.0 6.54 285.0 0.219 0.0 85.0 6.9044 31.6440 24.8144 34.8 52.5 6.54 285.0 0.213 0.0 86.0 6.9087 31.6469 24.8162 34.1 51.5 6.53 284.6 0.209 0.0 87.0 6.9172 31.6509 24.8182 33.0 49.9 6.51 283.6 0.203 0.0 88.0 6.9244 31.6549 24.8204 32.1 47.9 6.49 282.8 0.200 0.0 89.0 6.9279 31.6604 24.8243 30.8 46.5 6.49 282.9 0.206 0.0 90.0 6.9258 31.6637 24.8272 30.1 44.3 6.48 282.5 0.204 0.0 91.0 6.9288 31.6705 24.8321 28.7 42.9 6.47 281.7 0.210 0.0 92.0 6.9309 31.6737 24.8344 26.4 39.1 6.46 281.4 0.214 0.0 93.0 6.9308 31.6741 24.8347 24.5 34.8 6.47 281.7 0.206 0.0 94.0 6.9310 31.6743 24.8348 23.5 33.4 6.46 281.2 0.212 0.0 95.0 6.9304 31.6741 24.8347 23.3 33.0 6.46 281.4 0.205 0.0 96.1 6.9303 31.6740 24.8347 23.3 33.4 6.46 281.4 0.211 0.0 96.7 6.9306 31.6738 24.8345 23.3 33.5 6.46 281.5 0.207 0.0