*2017/06/29 15:26:49.74 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2017/02/07 00:11:42.000 TIME INCREMENT : 0 0 0 0.416667E-01 0 ! (day hr min sec ms) NUMBER OF RECORDS : 51 DATA DESCRIPTION : CTD FILE TYPE : ASCII CRC : 761C60B3 NUMBER OF CHANNELS : 6 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- --------------------------- --------------- -------------- -------------- 1 Pressure:CTD dbar 1.5 50.8 2 Temperature:CTD deg_C_(ITS90) 6.7083 8.4008 3 Salinity:CTD PSS-78 28.2108 29.6226 4 Sigma-t:CTD kg/m^3 22.137 23.0237 5 Fluorescence:CTD:Seapoint mg/m^3 0.173 1.018 6 PAR:CTD µE/m^2/sec 0 4.7 $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 ' ' 8 F ' ' 3 6 -99 ' ' 7 F ' ' 1 $END *ADMINISTRATION MISSION : 2017-001 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 : SI EVENT NUMBER : 2 LATITUDE : 48 39.55000 N ! (deg min) LONGITUDE : 123 29.94000 W ! (deg min) WATER DEPTH : 171 *INSTRUMENT TYPE : Sea-Bird CTD MODEL : SBE-911plus SERIAL NUMBER : 0506 LOCATION : Mid-ship ! custom item *COMMENTS CTDEDIT was used to remove records from near the top and bottom of the cast; salinity was cleaned. Data Processing Notes: ---------------------- Fluorescence and PAR data are nominal and unedited except that some records were removed in editing temperature and salinity and a large spike in fluorescence was removed from file 0032. The Transmissivity channel was removed because of frequent shifts in values during casts and large variations between values during repeat casts. The data are available, by request, from the chief scientist. NOTE: While the Fluorescence:CTD 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 Dissolved Oxygen sensor used in files 0001, 0002 and 0016 malfunctioned so the Oxygen:Dissolved:CTD channels were removed from those files. 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: ±0.25 ml/l from 0 to 125 dbar. ±0.2 ml/l from 125 to 400 dbar. ±0.1 ml/l from 400 to 600 dbar. ±0.05 ml/l from 600 to 1500 dbar. Low by up to 0.08 ml/l below 1500 dbar. For details on the processing see document: 2017-001-proc.pdf. !--1--- ---2---- ---3---- ---4---- ---5--- --6--- !Pressu Temperat Salinity Sigma-t: Fluores PAR: !re:CTD ure:CTD :CTD CTD cence: CTD ! CTD: ! Seapoin ! t !------ -------- -------- -------- ------- ------ *END OF HEADER 1.5 6.7083 28.2108 22.1370 1.018 4.7 1.9 6.7461 28.2396 22.1551 1.017 4.3 3.0 6.9297 28.3909 22.2519 1.015 3.2 4.0 7.0377 28.4700 22.3008 0.999 2.5 5.0 7.2210 28.5848 22.3681 1.003 2.0 6.0 7.4263 28.8254 22.5308 1.008 1.5 7.0 7.5636 28.9519 22.6123 0.945 1.2 8.0 7.6441 29.0066 22.6446 0.915 1.0 9.0 7.7103 29.0442 22.6654 0.871 0.8 10.0 7.7289 29.0670 22.6808 0.848 0.7 11.0 7.8196 29.1189 22.7093 0.825 0.5 12.0 7.8340 29.1326 22.7182 0.785 0.4 13.0 7.8261 29.1559 22.7375 0.739 0.4 14.0 7.7940 29.1637 22.7479 0.680 0.3 15.0 7.7799 29.1730 22.7571 0.642 0.2 16.0 7.6717 29.1734 22.7719 0.608 0.2 17.0 7.6981 29.1850 22.7774 0.571 0.2 18.0 7.6969 29.1880 22.7800 0.548 0.1 19.0 7.7050 29.1990 22.7875 0.528 0.1 20.0 7.6483 29.2211 22.8124 0.489 0.1 21.0 7.6424 29.2339 22.8232 0.475 0.1 22.0 7.6090 29.2380 22.8309 0.456 0.0 23.0 7.5909 29.2496 22.8424 0.434 0.0 24.0 7.6421 29.2682 22.8502 0.424 0.0 25.0 7.7084 29.2863 22.8556 0.398 0.0 26.0 7.6898 29.2849 22.8569 0.371 0.0 27.0 7.6812 29.2850 22.8582 0.363 0.0 28.0 7.6872 29.2863 22.8584 0.358 0.0 29.0 7.7726 29.3123 22.8674 0.339 0.0 30.0 7.8004 29.3183 22.8683 0.319 0.0 31.0 7.8423 29.3283 22.8705 0.316 0.0 32.0 7.8546 29.3318 22.8716 0.305 0.0 33.0 7.8966 29.3438 22.8753 0.295 0.0 34.0 7.9688 29.3674 22.8840 0.280 0.0 35.0 8.0044 29.3788 22.8881 0.271 0.0 36.0 8.0171 29.3896 22.8948 0.259 0.0 37.0 7.9533 29.3841 22.8992 0.254 0.0 38.0 7.9680 29.3997 22.9094 0.247 0.0 39.0 7.9281 29.4044 22.9186 0.244 0.0 40.0 7.9542 29.4205 22.9276 0.234 0.0 41.0 7.9796 29.4318 22.9330 0.231 0.0 42.0 7.9566 29.4403 22.9428 0.221 0.0 43.0 7.9204 29.4546 22.9590 0.220 0.0 44.0 7.9847 29.4878 22.9762 0.213 0.0 45.0 7.9922 29.5013 22.9858 0.213 0.0 46.0 8.0051 29.5099 22.9907 0.211 0.0 47.0 8.0244 29.5170 22.9936 0.205 0.0 47.9 8.0629 29.5303 22.9988 0.196 0.0 49.0 8.2212 29.5736 23.0107 0.182 0.0 50.1 8.3825 29.6169 23.0219 0.175 0.0 50.8 8.4008 29.6226 23.0237 0.173 0.0