*2021/06/03 11:14:31.48 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2021/02/13 20:30:34.000 TIME INCREMENT : 0 0 0 0.416667E-01 0 ! (day hr min sec ms) NUMBER OF RECORDS : 52 DATA DESCRIPTION : CTD FILE TYPE : ASCII CRC : 113B7B8D NUMBER OF CHANNELS : 10 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ----------------------------- --------------- -------------- -------------- 1 Pressure:CTD dbar 3.2 53.8 2 Temperature:CTD deg_C_(ITS90) 6.9455 8.0665 3 Salinity:CTD PSS-78 30.7379 31.873 4 Sigma-t:CTD kg/m^3 24.0952 24.8354 5 Transmissivity:CTD:650 %/m 48.8 54 6 Transmissivity:CTD:530 %/m 72 80.6 7 Oxygen:Dissolved:CTD:Volume ml/l 5.41 5.92 8 Oxygen:Dissolved:CTD:Mass µmol/kg 235.7 258 9 Fluorescence:CTD:Seapoint mg/m^3 0.73E-01 0.255 10 PAR:CTD µE/m^2/sec 0.1 93.7 $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 : 2021-001 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 : VP39C EVENT NUMBER : 125 LATITUDE : 53 32.42000 N ! (deg min) LONGITUDE : 129 0.52000 W ! (deg min) WATER DEPTH : 54 *INSTRUMENT TYPE : Sea-Bird CTD MODEL : SBE-911plus SERIAL NUMBER : 0550 LOCATION : Mid-ship ! custom item *COMMENTS CTDEDIT was used to remove some surface records and a few records corrupted by shed wakes near the bottom of the cast; 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. 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 are considered, very roughly, to be: ±0.20 ml/l from 0 to 400 dbar except in areas of very large DO gradients especially just below the base of the mixed layer. ±0.03 ml/l from 400 to 2000 dbar. ±0.02 ml/l below 2000 dbar. For details on the processing see document: 2021-001-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 3.2 7.0087 30.7721 24.1148 50.9 74.5 5.86 255.4 0.211 93.7 4.0 7.0058 30.7728 24.1157 50.9 74.4 5.86 255.3 0.212 82.2 5.0 6.9955 30.7659 24.1116 50.9 74.4 5.87 255.8 0.214 61.6 6.0 6.9749 30.7524 24.1036 50.9 74.4 5.88 256.5 0.213 49.9 7.0 6.9768 30.7522 24.1032 50.9 74.4 5.89 256.8 0.219 41.2 8.0 6.9793 30.7527 24.1033 50.9 74.5 5.89 256.6 0.226 33.6 9.0 6.9823 30.7556 24.1052 50.9 74.5 5.89 256.7 0.227 28.7 10.0 6.9757 30.7519 24.1031 50.9 74.7 5.89 256.9 0.223 24.5 11.0 6.9717 30.7503 24.1024 51.0 74.8 5.90 257.3 0.210 21.1 12.0 6.9773 30.7522 24.1032 51.0 74.8 5.90 257.2 0.214 18.4 13.0 6.9653 30.7482 24.1016 51.0 74.7 5.90 257.3 0.205 16.2 14.0 6.9559 30.7400 24.0963 51.0 74.8 5.91 257.6 0.200 14.3 15.0 6.9455 30.7379 24.0960 51.0 74.7 5.92 258.0 0.210 12.6 16.0 6.9678 30.7406 24.0952 51.0 74.6 5.91 258.0 0.227 11.2 17.0 6.9677 30.7408 24.0954 50.9 74.7 5.91 257.6 0.229 10.0 18.0 6.9893 30.7521 24.1015 50.9 74.5 5.88 256.3 0.243 8.8 19.0 7.0104 30.7653 24.1092 50.8 74.4 5.88 256.3 0.248 7.9 20.0 7.0427 30.7825 24.1185 50.7 73.9 5.88 256.6 0.252 7.0 21.0 7.1765 30.8671 24.1676 50.5 74.1 5.82 253.9 0.255 6.3 22.0 7.3451 30.9957 24.2464 50.2 73.7 5.75 250.6 0.241 5.6 23.0 7.3724 31.0218 24.2633 50.1 73.2 5.73 249.9 0.234 5.0 24.0 7.3989 31.0418 24.2754 50.1 73.2 5.73 249.9 0.221 4.4 25.0 7.4990 31.1212 24.3243 50.6 74.0 5.71 248.9 0.204 3.9 26.0 7.5647 31.1803 24.3618 50.5 74.2 5.68 247.8 0.189 3.5 27.0 7.6116 31.2249 24.3904 50.5 73.8 5.67 247.3 0.182 3.1 28.0 7.6224 31.2358 24.3975 50.5 73.8 5.67 247.0 0.176 2.7 29.0 7.6198 31.2344 24.3968 50.4 73.8 5.66 246.8 0.173 2.4 30.0 7.6200 31.2350 24.3972 50.5 73.9 5.65 246.4 0.171 2.2 31.0 7.6326 31.2455 24.4037 50.5 74.0 5.66 246.8 0.168 1.9 32.0 7.6327 31.2463 24.4043 50.8 74.4 5.65 246.5 0.168 1.7 33.0 7.6496 31.2577 24.4110 50.9 74.5 5.66 246.9 0.163 1.5 34.0 7.7066 31.2988 24.4354 51.2 75.3 5.69 248.1 0.149 1.3 35.0 7.8051 31.3862 24.4903 52.6 77.1 5.72 249.4 0.131 1.1 36.0 7.8992 31.5046 24.5700 53.3 79.1 5.72 249.4 0.118 1.0 37.0 7.9432 31.5790 24.6222 52.9 78.5 5.71 248.8 0.107 0.9 38.0 7.9853 31.6448 24.6678 53.6 79.4 5.70 248.3 0.097 0.8 39.0 8.0007 31.6696 24.6851 53.8 80.2 5.69 248.1 0.092 0.7 40.0 8.0080 31.6796 24.6919 53.9 80.2 5.70 248.4 0.088 0.6 41.0 8.0134 31.6886 24.6982 54.0 80.6 5.70 248.2 0.089 0.5 42.0 8.0125 31.6875 24.6975 53.8 80.4 5.69 248.1 0.088 0.5 43.0 8.0126 31.6876 24.6975 53.6 80.0 5.69 248.1 0.087 0.4 44.0 8.0153 31.6916 24.7003 53.5 79.9 5.68 247.3 0.087 0.4 45.0 8.0393 31.7494 24.7422 52.9 79.3 5.60 244.1 0.081 0.3 46.0 8.0588 31.8235 24.7975 51.2 76.2 5.51 240.2 0.081 0.3 47.0 8.0612 31.8437 24.8130 50.5 74.7 5.47 238.4 0.080 0.2 48.0 8.0618 31.8474 24.8159 49.9 73.6 5.45 237.6 0.080 0.2 49.0 8.0650 31.8641 24.8285 49.6 72.4 5.44 237.0 0.077 0.2 50.0 8.0657 31.8686 24.8319 49.0 72.2 5.43 236.5 0.078 0.1 51.0 8.0661 31.8713 24.8340 49.0 72.1 5.41 235.9 0.078 0.1 52.0 8.0663 31.8724 24.8348 49.1 72.1 5.41 235.7 0.076 0.1 53.0 8.0656 31.8730 24.8354 48.9 72.3 5.41 235.7 0.075 0.1 53.8 8.0665 31.8726 24.8349 48.8 72.0 5.41 235.9 0.073 0.1