*2013/12/16 15:17:51.71 *IOS HEADER VERSION 1.10 2011/10/26 2011/10/26 *FILE START TIME : UTC 1999/04/07 16:50:00.000 TIME ZERO : UTC 1980/01/01 00:00:00.000 NUMBER OF RECORDS : 12 DATA DESCRIPTION : Bottle:Wire + CTD:Down FILE TYPE : ASCII NUMBER OF CHANNELS : 9 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- ---------------- -------------- -------------- 1 Pressure decibar 5.1 201.9 2 Sample_Number n/a 181 192 3 Oxygen:Dissolved mL/L 6.823 8.123 4 Salinity:Bottle PSS-78 31.843 33.252 5 Salinity PSS-78 31.786 33.261 6 Temperature 'deg C (IPTS68)' -1.764 -1.332 7 Phosphate umol/L 1.12 1.24 8 Silicate umol/L 12.9 18 9 Nitrate_plus_Nitrite umol/L 5.8 11.1 $END $TABLE: CHANNEL DETAIL ! No Pad Start Width Format Type Decimal_Places !--- ---- ----- ----- ------ ---- -------------- 1 -99 ' ' 7 F R4 1 2 -99 ' ' 5 I I 0 3 -99 ' ' 8 F R4 3 4 -99 ' ' 8 F R4 3 5 -99 ' ' 8 F R4 3 6 -99 ' ' 8 F R4 3 7 -99 ' ' 7 F R4 2 8 -99 ' ' 6 F R4 1 9 -99 ' ' 6 F R4 1 $END *ADMINISTRATION MISSION : 1999-07 AGENCY : IOS, Ocean Science and Productivity, Sidney, B.C. COUNTRY : Canada PROJECT : Arctic Canada Watch 1999 SCIENTIST : Melling H. PLATFORM : Twin Otter / ice work *LOCATION GEOGRAPHIC AREA : Canadian Arctic Archipelago STATION : EB09 EVENT NUMBER : 12 LATITUDE : 74 8.40000 N ! (deg min) LONGITUDE : 90 58.74000 W ! (deg min) WATER DEPTH : 209 ICE THICKNESS : 1.3 *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! ------------------------ ------ ---------- -------- --------- --------- SPRD2IS 3.2 2001/01/12 08:34:38 12 12 REMOVECH 5.0 2001/01/16 11:34:31 12 12 HDREDIT2 1.2 2001/12/03 15:29:27 ? ? REMOVECH 6.0 2001/12/03 15:32:53 12 12 HDREDIT2 1.9 2004/01/14 11:16:35 ? ? CLEAN 4.5 2004/01/14 11:17:27 12 12 CHANGE_CTD_CHANNEL_NAMES 1.0 2013/12/16 15:17:51 12 12 $END $REMARKS -The following CHANNEL(S) were removed from file. Salinity_Difference Salinity_Gradient PO4-1 PO4-2 Si-1 Si-2 NO3-1 NO3-2 oxy-2 Time_UTC -The following CHANNEL(S) were removed from file. Oxygen_Isotope_Ratio CLEAN functions: - Reset #RECS, MIN & MAX values in header. - Change Pad Value to -99 in All Channels. - Delete Empty Channels: 0 deleted. - Set channel name post-colon letters to upper case. - Remove Sea-Bird comments from the header. $END *COMMENTS Cruise 9907 water chemistry data : "Canadian Arctic Archipelago - March 28 - April 8, 1999" Field operations were carried out using a helicopter and a twin otter and sample were taken through a hole in the ice. 1.7L Niskin bottles were attached to a hydro-wire and tripped using messengers. Dissolved Oxygen : "Analyzed at Polar Continental Shelf Base at Resolute Bay, NWT by Mary O'Brien" using an automated version of the Micro-Winkler Technique as described in : "Carpenter, J. H., 1965. The Chesapeake Bay Institute technique for the Winkler "dissolved oxygen method, Limnol. Oceanogr., 10, 141-3. " The titration is done using a Metrohn Dosimat 665 and the end point is detected using a Brinkmann probe colorimeter PC900. The methodology is described by an internal OSAP document (Dissolved Oxygen Determination Methods and Procedures by Bernard Minkley and George Chase). "18 duplicate samples were taken, 1 pair was eliminated in the calculation " of the pooled standard deviation. "Pooled standard deviation for 17 pairs : Sp=0.014 mL/L, n=17 (range for " duplicates is 5.635 to 8.497 mL/L) One pair was eliminated from Sp calculation --> BM05 155m cast 16 (5.991 and 6.597 ---> 6.597 appears abnormally high) Range for all data is 5.635 to 9.200 mL/L "note - for cast 6, at 282.62 db, the value 7.444 is too high and will not be in in the archived data. "note - only the first of the duplicates is included in the archived data ie, no averaged data for dissolved oxygen is included in the archive. "note - for cast 16 at 156.45 db, one of the duplicates is too high based on the shape of the profile and on comparison with other profiles. The value 6.597 is eliminated and the other replicate 5.991 is included in the archived data. Bottle salinities : Samples were shipped by air back to IOS and analyzed using an Autosal (8400A) which was standardized using IAPSO standard seawater (P134) (K15=0.99989; salinity=34.996). Analysis done by Melanie Quenneville. Pooled standard deviation for bottle salinities : Sp=0.007 mL/L for 13 samples analysed in duplicate. "Nutrients : (silicate, nitrate plus nitrite and orthophosphate)" Samples were frozen and shipped to IOS. Analysis was done on contract by Linda White. Nutrients were analyzed using Technicon Autoanalyzer II components. Reactive silicate and nitrate plus nitrite were determined according to Technico "Industrial Methods No. 186-71 W and 158-71 W respectively, and soluble " orthophosphate was determined using a modified Technicon method as described "in : Brynjolfson, S.J., 1973. A modification of the Technicon methodology for "determination of orthophosphate in seawater, Paper presented at Water " "Resources Services, Vancouver, B.C." "The method is also described in an internal document : ""Institute of Ocean " "Sciences Nutrient Methods and Analysis"" by J. Barwell-Clarke and F Whitney " 1996. Medium check standards were run every 15 samples and a complete standard envelope was run every 30 samples. Most of the samples were analyzed in duplicate and pooled standard deviations were calculated as follows : Silicate: 179 samples were analyzed in duplicate "Pooled standard deviation for 179 pairs : Sp=0.57, n=179 " (range for all data is 6.96 to 28.39 uM) Archived data is the average of the duplicates. Note : The replicate reproducibility in 5 of the casts is generally poorer than "rest of the casts. Namely, casts 5, 6, 9, 14 and 15 have more problems with po reproducibility than the other casts. The samples with poor reproducibility between duplicates are as follows (difference >1.0) : "Stn WB05 cast 5 (sample numbers 42,43,44,46 and 47) " "Stn WB08 cast 6 (sample numbers 58, 60 and 63) " "Stn HG03 cast 9 (sample numbers 129, 132, 133, and 134)" "Stn BM02 cast 15 (sample numbers 105, 109 and 112)" Stn EB02 cast 14 (sample numbers 156 and 163) Orthophosphate: 182 samples were analyzed in duplicate "Pooled standard deviation for 182 pairs : Sp=0.035, n=182 (range for all data is 0.89 to 1.63 uM) Archived data is the average of the duplicates. The following samples have poor reproducibility between the duplicates (difference > 0.1): Stn PS06 cast 8 (samples 96 and 99) Stn WB08 cast 8 (samples 51 and 57) Stn HG03 cast 9 (samples 128 and 132) Stn EB09 cast 12 (sample 185) Stn EB06 cast 13 (samples 170 and 175) Stn EB02 cast 14 (sample 157) Stn BM02 cast 15 (sample113) Nitrate plus Nitrite: 172 samples were analyzed in duplicate "Pooled standard deviation for 172 pairs: Sp=0.22, n=172 (range for all data is 2.2 to 16.3 uM) Archived data is the average of the duplicates. The following samples have poor reproducibility between the duplicates (differen >0.3): Stn WB02 cast 4 (sample numbers 32 and 33) Stn WB05 cast 5 (sample numbers 42 and 47) Stn WB08 cast 6 (sample number 63) Stn BM02 cast 15 (sample number 109) Oxygen isotopes : "Samples taken, data not included - contact Fiona McLaughlin for information" "CTD pressure, salinity and temperature " CTD data was processed by Humfrey Melling. Details of the CTD processing and matching CTD with bottle data can be found in the following file : (Processing of CTD Data from FSI CTD's in Spring 1999.doc) *INSTRUMENT TYPE : Bottle MODEL : Niskin 1.7 Litre !--1--- -2-- ---3--- ---4--- ---5--- ---6--- --7--- --8-- --9-- !Pressu Samp Oxygen: Salinit Salinit Tempera Phosph Silic Nitra !re le_ Dissolv y: y ture ate ate te_ ! Numb ed Bottle plus_ ! er Nitri ! te !------ ---- ------- ------- ------- ------- ------ ----- ----- *END OF HEADER 5.1 181 8.123 31.843 31.786 -1.741 1.16 12.9 5.8 15.1 182 8.110 31.844 31.891 -1.738 1.18 12.9 5.8 25.2 183 7.699 32.333 32.333 -1.726 1.14 14.8 7.3 40.4 184 7.757 32.418 32.451 -1.757 1.15 14.0 7.0 60.6 185 7.606 32.524 32.553 -1.759 1.12 15.0 7.5 80.8 186 7.519 32.564 32.586 -1.764 1.12 15.2 7.8 100.9 187 7.510 32.594 32.620 -1.757 1.15 15.1 7.8 121.1 188 7.468 32.658 32.683 -1.703 1.21 15.2 8.1 141.3 189 7.371 32.813 32.827 -1.635 1.19 15.6 9.1 161.5 190 7.271 32.913 32.927 -1.579 1.16 15.8 9.6 181.7 191 7.001 33.072 33.080 -1.455 1.18 17.3 10.6 201.9 192 6.823 33.252 33.261 -1.332 1.24 18.0 11.1