*2021/09/14 08:57:09.83 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2021/05/04 07:35:44.000 TIME INCREMENT : 0 0 0 0.416667E-01 0 ! (day hr min sec ms) NUMBER OF RECORDS : 109 DATA DESCRIPTION : CTD FILE TYPE : ASCII CRC : 577E63E2 NUMBER OF CHANNELS : 9 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ----------------------------- --------------- -------------- -------------- 1 Pressure:CTD dbar 3.2 110.7 2 Temperature:CTD deg_C_(ITS90) 6.8799 9.8132 3 Salinity:CTD PSS-78 31.7946 33.8009 4 Sigma-t:CTD kg/m^3 24.5101 26.5164 5 Transmissivity:CTD:650 %/m 12.6 57 6 Transmissivity:CTD:530 %/m 16.6 86.6 7 Oxygen:Dissolved:CTD:Volume ml/l 1.73 8.45 8 Oxygen:Dissolved:CTD:Mass µmol/kg 75.1 368.5 9 PAR:CTD µE/m^2/sec 0 0.5 $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 ' ' 7 F ' ' 1 $END *ADMINISTRATION MISSION : 2021-006 AGENCY : IOS, Ocean Sciences Division, Sidney, B.C. COUNTRY : Canada PROJECT : Line P SCIENTIST : Robert M. PLATFORM : John P. Tully *LOCATION GEOGRAPHIC AREA : North-East Pacific STATION : P1 EVENT NUMBER : 10 LATITUDE : 48 34.41000 N ! (deg min) LONGITUDE : 125 29.63000 W ! (deg min) WATER DEPTH : 120 *INSTRUMENT TYPE : Sea-Bird CTD MODEL : SBE-911plus SERIAL NUMBER : 0443 LOCATION : Mid-ship ! custom item *COMMENTS CTDEDIT was used to remove some near-surface records and records corrupted by shed wakes; salinity was cleaned lightly. 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. The Fluorescence:CTD channel was removed from the CTD files for events 0001 to 0015 due to excessive noise. The problem was resolved when a Y-cable was replaced before event 0016. Data collected during bottle stops looked better, so the channel is included in CHE files. 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. Much 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 for this cruise are considered, very roughly, to be ±3% except in areas of very large DO gradients, especially at the base of the mixed layer. For details on the processing see document 2021-006-proc.pdf. !--1--- ---2---- ---3---- ---4---- --5-- --6-- --7--- --8-- --9--- !Pressu Temperat Salinity Sigma-t: Trans Trans Oxygen Oxyge PAR: !re:CTD ure:CTD :CTD CTD missi missi :Disso n:Dis CTD ! vity: vity: lved: solve ! CTD: CTD: CTD: d:CTD ! 650 530 Volume :Mass !------ -------- -------- -------- ----- ----- ------ ----- ------ *END OF HEADER 3.2 9.7912 31.7946 24.5101 13.0 16.8 8.44 368.1 0.5 4.0 9.7920 31.7958 24.5109 12.6 16.6 8.45 368.5 0.3 5.0 9.7971 31.7992 24.5128 12.7 16.9 8.45 368.4 0.2 6.0 9.7976 31.8000 24.5133 13.2 17.1 8.44 367.9 0.1 7.0 9.7982 31.8018 24.5146 13.0 17.2 8.42 367.2 0.0 8.0 9.7987 31.8040 24.5162 12.9 17.2 8.43 367.3 0.0 9.1 9.8094 31.8276 24.5329 14.8 18.4 8.34 363.3 0.0 10.0 9.8132 31.8384 24.5407 14.5 19.1 8.26 359.9 0.0 11.0 9.8059 31.8467 24.5484 15.1 19.7 8.15 355.3 0.0 12.0 9.7925 31.8669 24.5663 15.4 20.5 8.01 349.1 0.0 13.0 9.7543 31.9104 24.6065 17.4 22.1 7.87 343.1 0.0 14.0 9.7362 31.9263 24.6218 19.5 23.5 7.78 338.9 0.0 15.1 9.7107 31.9435 24.6394 19.9 25.6 7.68 334.9 0.0 16.0 9.6842 31.9630 24.6589 21.6 28.4 7.52 327.9 0.0 17.0 9.5906 32.0102 24.7108 24.6 32.8 7.34 320.1 0.0 18.0 9.4841 32.0361 24.7481 26.5 35.5 7.25 315.9 0.0 19.0 9.2763 32.0710 24.8082 30.8 36.4 7.16 312.2 0.0 20.0 9.0743 32.0999 24.8624 40.8 45.2 7.01 305.7 0.0 21.0 8.9122 32.1216 24.9044 45.4 57.3 6.81 296.8 0.0 22.0 8.7181 32.1349 24.9444 46.2 64.9 6.66 290.1 0.0 23.0 8.6465 32.1396 24.9589 46.2 67.3 6.59 287.0 0.0 24.0 8.5864 32.1465 24.9733 46.6 68.0 6.55 285.5 0.0 25.0 8.5137 32.1552 24.9910 47.1 68.2 6.51 283.6 0.0 26.0 8.4552 32.1642 25.0068 47.5 69.2 6.49 282.6 0.0 27.0 8.4198 32.1713 25.0176 47.6 70.0 6.45 280.9 0.0 28.0 8.3952 32.1754 25.0244 47.7 70.4 6.40 278.7 0.0 29.0 8.3477 32.1856 25.0395 48.1 70.6 6.35 276.6 0.0 30.0 8.1936 32.2196 25.0887 49.3 71.1 6.26 272.9 0.0 31.0 8.0758 32.2458 25.1264 50.4 73.5 6.12 266.8 0.0 32.0 7.8889 32.3190 25.2107 52.0 75.5 5.97 260.1 0.0 33.0 7.7766 32.3910 25.2832 53.7 78.1 5.86 255.1 0.0 34.0 7.7319 32.4355 25.3245 54.6 80.2 5.76 250.7 0.0 35.0 7.7313 32.4664 25.3488 55.2 82.2 5.70 248.1 0.0 36.0 7.7313 32.4720 25.3532 55.3 83.4 5.65 246.1 0.0 37.0 7.7317 32.4832 25.3620 55.4 83.4 5.57 242.4 0.0 38.0 7.7511 32.5103 25.3805 55.5 84.2 5.39 235.0 0.0 39.0 7.7902 32.5868 25.4350 55.5 83.6 5.16 224.6 0.0 40.0 7.8242 32.6342 25.4674 55.6 84.0 4.91 213.7 0.0 41.0 7.8622 32.6747 25.4938 55.5 84.0 4.67 203.5 0.0 42.0 7.8894 32.6983 25.5084 55.0 82.0 4.53 197.3 0.0 43.0 7.8867 32.7238 25.5288 54.9 83.2 4.52 197.0 0.0 44.0 7.8111 32.7590 25.5673 55.3 82.3 4.63 201.5 0.0 45.0 7.7595 32.7724 25.5852 55.7 82.1 4.73 205.8 0.0 46.0 7.6900 32.8056 25.6211 56.5 84.0 4.78 208.1 0.0 47.0 7.6881 32.8378 25.6467 57.0 85.3 4.66 203.1 0.0 48.0 7.6694 32.8877 25.6886 56.7 86.1 4.56 198.6 0.0 49.0 7.6558 32.8960 25.6970 56.9 86.3 4.52 196.8 0.0 50.0 7.6461 32.9124 25.7113 57.0 86.4 4.48 194.9 0.0 51.0 7.6374 32.9507 25.7426 57.0 86.6 4.40 191.7 0.0 52.0 7.6307 32.9745 25.7623 57.0 86.5 4.33 188.5 0.0 53.0 7.6288 33.0004 25.7829 56.9 86.6 4.22 183.8 0.0 54.0 7.6307 33.0222 25.7997 56.6 86.3 4.13 179.9 0.0 55.0 7.6304 33.0319 25.8074 56.4 85.7 4.07 177.0 0.0 56.0 7.6266 33.0430 25.8167 56.3 85.3 3.99 173.8 0.0 57.0 7.6242 33.0764 25.8433 56.1 85.1 3.88 168.7 0.0 58.0 7.6305 33.1023 25.8627 55.9 84.8 3.68 160.3 0.0 59.0 7.6267 33.1986 25.9389 55.1 84.2 3.41 148.4 0.0 60.0 7.5909 33.2767 26.0054 54.0 82.9 3.18 138.5 0.0 61.0 7.5577 33.3159 26.0409 53.8 81.6 3.03 131.7 0.0 62.0 7.5095 33.3667 26.0877 53.3 80.4 2.91 126.6 0.0 63.0 7.4722 33.4024 26.1210 53.0 79.5 2.81 122.3 0.0 64.0 7.4472 33.4243 26.1417 52.8 78.6 2.75 119.6 0.0 65.0 7.4311 33.4386 26.1553 52.7 78.4 2.69 117.1 0.0 66.0 7.3904 33.4702 26.1858 52.4 78.2 2.65 115.2 0.0 67.0 7.3741 33.4822 26.1975 52.3 78.0 2.61 113.8 0.0 68.0 7.3648 33.4892 26.2043 52.2 77.7 2.59 112.5 0.0 69.0 7.3552 33.4965 26.2114 52.1 77.4 2.55 111.0 0.0 70.0 7.3157 33.5258 26.2400 51.8 77.2 2.50 108.9 0.0 71.0 7.2857 33.5476 26.2613 51.5 76.8 2.44 106.1 0.0 72.0 7.2371 33.5855 26.2979 51.2 76.2 2.37 103.0 0.0 73.0 7.1935 33.6178 26.3293 50.9 75.6 2.32 101.0 0.0 74.0 7.1903 33.6194 26.3310 50.8 75.3 2.30 99.9 0.0 75.0 7.1735 33.6306 26.3422 50.6 75.1 2.26 98.4 0.0 76.0 7.1431 33.6510 26.3624 50.1 74.5 2.22 96.6 0.0 77.0 7.1203 33.6663 26.3776 49.6 73.8 2.18 94.9 0.0 78.0 7.1002 33.6794 26.3907 49.5 72.9 2.14 93.1 0.0 79.0 7.0647 33.7017 26.4131 48.7 72.6 2.10 91.5 0.0 80.0 7.0584 33.7051 26.4167 48.3 71.6 2.08 90.4 0.0 81.0 7.0520 33.7087 26.4204 48.0 71.1 2.06 89.7 0.0 82.0 7.0372 33.7171 26.4290 47.8 69.8 2.03 88.2 0.0 83.0 7.0122 33.7307 26.4431 47.5 69.4 2.00 87.2 0.0 84.0 6.9993 33.7376 26.4503 46.9 69.0 1.97 85.7 0.0 85.0 6.9728 33.7519 26.4652 46.3 68.4 1.93 84.1 0.0 86.0 6.9533 33.7619 26.4757 45.5 67.3 1.90 82.6 0.0 87.0 6.9286 33.7742 26.4888 44.4 65.2 1.86 80.8 0.0 88.0 6.9072 33.7844 26.4997 45.5 65.2 1.82 79.3 0.0 89.0 6.8949 33.7906 26.5063 45.4 65.1 1.80 78.5 0.0 90.0 6.8913 33.7928 26.5085 44.3 65.1 1.79 77.9 0.0 91.0 6.8891 33.7940 26.5097 41.6 64.0 1.78 77.6 0.0 92.0 6.8884 33.7946 26.5103 41.7 60.8 1.78 77.3 0.0 93.0 6.8888 33.7947 26.5103 41.0 58.1 1.77 77.1 0.0 94.0 6.8886 33.7951 26.5107 40.8 57.9 1.77 77.1 0.0 95.0 6.8888 33.7951 26.5106 40.6 57.7 1.77 77.0 0.0 96.0 6.8888 33.7953 26.5108 40.8 57.8 1.76 76.8 0.0 97.0 6.8861 33.7970 26.5125 39.9 56.8 1.76 76.5 0.0 98.0 6.8846 33.7978 26.5133 39.6 55.9 1.75 76.3 0.0 99.0 6.8842 33.7981 26.5136 39.4 55.0 1.76 76.4 0.0 100.1 6.8830 33.7988 26.5143 39.2 55.0 1.75 76.2 0.0 101.1 6.8826 33.7990 26.5145 40.0 56.2 1.75 76.0 0.0 102.0 6.8821 33.7994 26.5149 39.8 56.1 1.74 75.9 0.0 102.8 6.8822 33.7994 26.5149 39.7 55.8 1.74 75.9 0.0 104.0 6.8823 33.7994 26.5149 39.8 56.2 1.74 75.7 0.0 105.0 6.8822 33.7995 26.5150 39.8 56.2 1.74 75.6 0.0 106.0 6.8818 33.7997 26.5152 39.8 56.0 1.74 75.5 0.0 107.1 6.8819 33.7997 26.5152 39.7 56.0 1.73 75.3 0.0 107.9 6.8811 33.8001 26.5156 39.8 56.2 1.73 75.2 0.0 109.0 6.8809 33.8002 26.5157 39.8 56.1 1.73 75.1 0.0 110.0 6.8804 33.8007 26.5162 39.7 55.9 1.73 75.1 0.0 110.7 6.8799 33.8009 26.5164 39.8 56.1 1.73 75.1 0.0