*2020/01/22 11:05:26.47 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 1997/08/25 21:55:01.000 NUMBER OF RECORDS : 11 DATA DESCRIPTION : Bottle:Rosette:Up:Stop + CTD:Up FILE TYPE : ASCII NUMBER OF CHANNELS : 12 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ------------------------------ --------------- -------------- -------------- 1 Bottle_Number n/a 1 11 2 Sample_Number n/a 3 Pressure decibar 4.1 467.6 4 Temperature 'deg C (ITS90)' -1.576 1.342 5 Salinity PSS-78 32.378 34.264 6 Nitrate_plus_Nitrite umol/L 0.7 14.6 7 Phosphate umol/L 0.5 1.23 8 Silicate umol/L 1.5 23.6 9 Chlorophyll:Extracted mg/m^3 0.1E-01 0.36 10 Chlorophyll:Extracted:>5.0um mg/m^3 0.1E-01 0.9E-01 11 Chlorophyll:Extracted:<5.0um mg/m^3 0 0.27 12 Carbon:Particulate:Organic mg/m^3 25.5 133.3 $END $TABLE: CHANNEL DETAIL ! No Pad Start Width Format Type Decimal_Places !--- ---- ----- ----- ------ ---- -------------- 1 -99 ' ' 3 I I 0 2 ' ' ' ' 7 NQ C ' ' 3 -99 ' ' 7 F R4 1 4 -99 ' ' 8 F R4 3 5 -99 ' ' 8 F R4 3 6 -99 ' ' 6 F R4 1 7 -99 ' ' 7 F R4 2 8 -99 ' ' 6 F R4 1 9 -99 ' ' 7 F R4 2 10 -99 ' ' 8 F R4 2 11 -99 ' ' 8 F R4 2 12 -99 ' ' 8 F R4 2 $END *ADMINISTRATION MISSION : 1997-21 AGENCY : U. of Laval (International project) COUNTRY : Canada PROJECT : NorthWater (NOW) Polynya Project SCIENTIST : Fortier L. PLATFORM : Louis S. St. Laurent *LOCATION GEOGRAPHIC AREA : Baffin Bay STATION : D1 EVENT NUMBER : 64 LATITUDE : 75 14.94000 N ! (deg min) LONGITUDE : 74 59.83000 W ! (deg min) WATER DEPTH : 500 *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! ------------------------ ------ ---------- -------- --------- --------- SPRD2IS 3.4.6 2002/05/01 16:55:48 11 11 HDREDIT2 1.3 2002/05/02 14:33:13 ? ? HDREDIT2 1.3 2002/05/08 09:46:59 ? ? SORT 3.3 2002/05/15 11:03:19 11 11 CLEAN 3.8 2002/05/15 11:05:27 11 11 HDREDIT2 1.9 2004/03/25 13:59:22 ? ? HDREDIT2 2.0 2004/05/19 16:19:49 ? ? CHANGE_CTD_CHANNEL_NAMES 1.0 2013/12/16 15:13:07 11 11 HDREDIT2 3.2 2020/01/22 11:05:26 ? ? $END $REMARKS -The following SORT parameters were used. Sorted by channel: Pressure Pressure channel sorted according to values in sort channel CLEAN functions: - Reset #RECS, MIN & MAX values in header. - Delete Empty Channels: 1 deleted. - Set channel name post-colon letters to upper case. -HEADER EDITS: 2020/01/22 11:05:26 - none. $END *COMMENTS Cruise Dates : August 15/97 to August 28/97 Water column sampling was done with a General Oceanics rosette system equipped with 23 Brookes Ocean Technology 10-litre sample bottles (a 24th bottle position was reserved for an internally recording CTD). For the NOW program, a set of ten standard sampling depths was selected: 0 (Surface), 5, 10, 15, 20, 30, 40, 50, 100, 300m. Water samples were also taken at 10 metres above the bottom and at the depth of maximum chlorophyll. A Falmouth Scientific Instruments CTD (FSI - ICTD S/N 1329), mounted in the centre of the rosette, was used to obtain real-time hydrocast data during the descent. This CTD was also used to record data from a transmisso- meter (SeaTech S/N 598) and a fluorometer (SeaTech S/N 93S). Additional water samples were taken from various depths as requested by participants in the science complement. See the following files for information on the sampling and data : 9721chem.xls ---> excel workbook from which archived data was derived, contains more detailed information. CruiseReport9721-NOW.doc ---> 9721 Cruise Summary. The values of pressure associated with each water sample are estimated on the presumption that the water in the bottle when closed on the UPCAST originates some distance below the CTD/rosette. The reason is that the wake of the rosette catches up with the rosette when it is stopped for sampling. Because "the wake is turbulent, the uncertainty of the level of sampling is relatively" large (+/-4 m). The average effective downward displacement for this data "set is 2 m, deduced from an analysis of salinity values from the downcast" CTD and from bottles. The values of CTD temperature and salinity associated with each water sample are derived from the UPCAST (when samples were acquired). These are the CTD values most representative of the water in a bottle when it is closed on the "UPCAST, since both the CTD and the bottle are engulfed in the wake of the" "rosette when it is stopped for sampling. However, because the turbulent" wake is inhomogeneous and because oceanographic bottles do not flush "instantaneously, an exact correspondence cannot be expected. The calculated" discrepancy between the upcast CTD and the sample analysis suggests a mismatch equivalent to the change in T & S over about (+/-3 m). Depending "on the vertical gradients in T & S, this mismatch may be important, or" negligible. For more information and detail on the pressure and ctd temperatures and ctd salinities see the following files: 1997-20-22_ICTD_cond_calib_&_bot_levels.doc ---> Describes the procedure used in choosing the Depth and Temperature for the geochemical samples for cruises 1997-20, 1997-21 and 1997-22. 1997-20-22_bottle-level_data.xls ---> contains an analysis of ctd/ros bottle levels for cruises 1997-20, 1997-21 and 1997-22. End of comments !1- --2--- --3--- ---4--- ---5--- --6-- --7--- --8-- --9--- ---10-- ---11-- ---12-- !Bo Sample Pressu Tempera Salinit Nitra Phosph Silic Chloro Chlorop Chlorop Carbon: !tt _ re ture y te_ ate ate phyll: hyll: hyll: Particu !~u Number plus_ Extrac Extract Extract late: !mb Nitri ted ed:>5. ed:<5. Organic !er te 0um 0um !-- ------ ------ ------- ------- ----- ------ ----- ------ ------- ------- ------- *END OF HEADER 11 N09-01 4.1 1.339 32.385 1.0 0.55 1.8 0.35 0.08 0.27 118.70 10 N09-02 8.1 1.342 32.385 0.9 0.58 2.3 0.33 0.08 0.25 -99.00 9 N09-03 13.3 1.342 32.385 0.7 0.54 1.7 0.36 0.09 0.27 83.70 8 N09-04 18.1 1.334 32.382 0.8 0.50 1.5 0.33 0.07 0.26 -99.00 7 N09-05 22.4 1.318 32.378 0.9 0.54 2.0 0.34 0.09 0.25 93.10 6 N09-06 33.4 -1.225 33.140 5.4 0.79 7.3 0.08 0.07 0.01 -99.00 5 N09-07 43.2 -1.505 33.268 5.8 0.87 7.9 0.23 0.09 0.14 133.30 4 N09-08 52.9 -1.576 33.332 8.0 1.00 10.6 0.14 0.05 0.09 -99.00 3 N09-09 103.1 -1.324 33.586 11.7 1.09 15.6 0.03 0.02 0.01 29.30 2 N09-10 305.4 -0.058 34.177 14.6 1.23 19.8 0.01 0.01 0.00 -99.00 1 N09-11 467.6 -0.219 34.264 13.8 1.09 23.6 0.03 0.01 0.02 25.50