# Aerosol Nitrate (NO3) # US GEOTRACES Arctic cruise, HLY1502 # PI: Meredith Hastings (Brown University) # Co-PI: Julie Granger (UConn) # Version date: 17 Jan 2019 ========================= deployment_number filter_type GEOTRC_EVENTNO GEOTRC_SAMPNO Dates_of_collection Date_Start Date_End UTC_Start Latitude_Start Longitude_Start UTC_End Latitude_End Longitude_End Collection_Time Total_air_filtered Extraction_Volume NITRATE_A_SML_CONC_HIVOL NITRATE_15_14_A_SML_DELTA_HIVOL NITRATE_18_16_A_SML_DELTA_HIVOL Comments ------------------------- 1 QMA 6060 nd 8/10-8/17 2015-08-10 2015-08-17 17:53 56.0743 -170.5090 17:15 69.9257 -167.6877 80.00 451.9 30.0 2.269 -1.82 72.38 Problems with power. Accurate pump run-time (and volume air filtered) not known. Motor not working by end of sampling period. 2 GFF 6123 10903 8/20-8/23 2015-08-20 2015-08-23 05:34 75.5665 -170.7498 18:12 79.9968 -174.9528 28.83 157.8 30.0 0.190 -3.23 55.00 (Motor replaced before sampling began) 3 GFF 6149 10973 8/23-8/27 2015-08-23 2015-08-27 19:21 80.0018 -174.9595 16:19 83.5722 174.7305 45.54 251.0 30.0 0.129 -3.54 59.29 nd 4 GFF 6168 11077 8/27-8/30 2015-08-27 2015-08-30 20:49 83.7577 175.0430 21:40 86.2438 170.6542 19.41 106.6 30.0 0.331 3.57 44.89 nd 5 GFF 6197 11215 8/30-9/04 2015-08-30 2015-09-04 23:57 86.3617 171.6882 02:42 88.3993 176.6365 11.01 60.6 30.0 nd nd nd Some snow on filters 6 GFF 6236 11349 9/04-9/08 2015-09-04 2015-09-08 10:02 88.4088 176.7522 04:34 89.9447 -97.8478 46.14 253.0 30.0 0.167 0.22 47.16 Potential contamination by Polarstern stack on morning of 7th(?) 7 GFF 6267 11464 9/08-9/12 2015-09-08 2015-09-12 06:05 89.9413 -104.1900 03:45 87.3515 -149.4303 20.07 110.1 30.0 nd nd nd nd 8 GFF 6304 11600 9/12-9/16 2015-09-12 2015-09-16 06:13 87.2708 -149.0443 04:30 85.1450 -149.8545 12.27 68.0 30.0 nd nd nd Some snow on filters 9 GFF 6347 11749 9/17-9/20 2015-09-17 2015-09-20 00:20 85.1632 -150.3953 22:13 82.2587 -149.3772 17.45 97.3 30.0 nd nd nd Some snow on filters 10 GFF 6387 11864 9/21-9/26 2015-09-21 2015-09-26 01:10 82.1005 -150.8110 03:05 78.9737 -148.5010 54.99 305.3 30.0 0.346 -1.21 57.03 A little snow on each filter 11 GFF 6424 12058 9/26-9/29 2015-09-26 2015-09-29 04:38 78.8035 -148.0932 19:34 75.0467 -150.1755 20.37 110.9 30.0 nd nd nd nd 12 GFF 6444 12181 9/29-10/03 2015-09-29 2015-10-03 20:31 75.0602 -150.2147 16:25 73.4260 -156.7932 36.76 202.3 30.0 0.300 -1.74 41.16 nd 13 GFF 6487 12310 10/03-10/07 2015-10-03 2015-10-07 18:41 73.3972 -156.7658 17:33 71.9983 -162.5618 25.75 144.7 30.0 nd nd nd Motor failed between 01:50 and 09:33 on 7th Oct (UTC), but timer kept working - run time and air filtered shown represent maximum possible. Minimum possible values are 13.48 hours and 73.3 m3. 14 QMA 6495 12317 10/07-10/09 2015-10-07 2015-10-09 18:40 72.0043 -162.5603 23:50 65.9503 -168.4485 15.60 96.1 30.0 1.168 5.92 41.28 nd