27 1001 Weinheimer, A. J.; Walega, J. G.; Ridley, B. A. National Center for Atmospheric Research DC-8 in situ NO2, NO, NOy, O3 AASE II 1 1 1992 01 16 1993 07 14 60.0 Time (seconds past 0 UT of flight day in line 7) 1 1.0 99999.9 NO2 (pptv) 0 12 For the 4 channels of the instrument (one reported in this file), counts are accumulated and recorded over common 2-second intervals. O3 and NOy are reduced and reported to the archive for these 2-second intervals. The time archived is the start time of the 2-second interval. NO and NO2 are reduced at 2 seconds, then averaged and reported for 1-minute intervals. For these, the archived time (an even minute) is the center time of the 1-minute averaging interval. At typical altitudes, the residence time of air in the inlet system, prior to actual sampling, is 0.1 to 0.3 seconds, except for the NO2 channel which imposes an additional 4-5 seconds residence time. The NO2 data have been shifted an even 4 seconds to accommodate this. UT(sec) NO2(pptv) 9720 99999.9 9780 99999.9 9840 99999.9 9900 99999.9 9960 99999.9 10020 99999.9 10080 99999.9 10140 99999.9 10200 99999.9 10260 99999.9 10320 99999.9 10380 99999.9 10440 99999.9 10500 99999.9 10560 99999.9 10620 99999.9 10680 99999.9 10740 99999.9 10800 99999.9 10860 99999.9 10920 99999.9 10980 99999.9 11040 99999.9 11100 99999.9 11160 99999.9 11220 99999.9 11280 99999.9 11340 99999.9 11400 99999.9 11460 99999.9 11520 99999.9 11580 99999.9 11640 99999.9 11700 99999.9 11760 99999.9 11820 99999.9 11880 99999.9 11940 99999.9 12000 99999.9 12060 99999.9 12120 99999.9 12180 99999.9 12240 99999.9 12300 99999.9 12360 99999.9 12420 99999.9 12480 99999.9 12540 99999.9 12600 99999.9 12660 99999.9 12720 99999.9 12780 99999.9 12840 99999.9 12900 99999.9 12960 99999.9 13020 99999.9 13080 99999.9 13140 99999.9 13200 99999.9 13260 99999.9 13320 99999.9 13380 99999.9 13440 99999.9 13500 99999.9 13560 99999.9 13620 99999.9 13680 99999.9 13740 99999.9 13800 99999.9 13860 99999.9 13920 99999.9 13980 99999.9 14040 99999.9 14100 99999.9 14160 99999.9 14220 99999.9 14280 99999.9 14340 99999.9 14400 99999.9 14460 99999.9 14520 99999.9 14580 99999.9 14640 99999.9 14700 99999.9 14760 99999.9 14820 99999.9 14880 99999.9 14940 99999.9 15000 99999.9 15060 99999.9 15120 99999.9 15180 99999.9 15240 99999.9 15300 99999.9 15360 99999.9 15420 4.9 15480 5.6 15540 16.8 15600 2.6 15660 20.6 15720 15.9 15780 9.6 15840 2.4 15900 11.0 15960 9.9 16020 21.7 16080 -3.8 16140 2.5 16200 3.3 16260 99999.9 16320 99999.9 16380 99999.9 16440 99999.9 16500 99999.9 16560 99999.9 16620 99999.9 16680 99999.9 16740 99999.9 16800 99999.9 16860 99999.9 16920 99999.9 16980 33.5 17040 10.0 17100 18.1 17160 9.8 17220 13.5 17280 11.4 17340 21.1 17400 34.8 17460 25.5 17520 30.6 17580 25.4 17640 17.7 17700 12.2 17760 18.1 17820 99999.9 17880 99999.9 17940 99999.9 18000 99999.9 18060 99999.9 18120 99999.9 18180 99999.9 18240 99999.9 18300 99999.9 18360 53.5 18420 99999.9 18480 99999.9 18540 99999.9 18600 99999.9 18660 99999.9 18720 99999.9 18780 99999.9 18840 99999.9 18900 99999.9 18960 99999.9 19020 52.7 19080 99999.9 19140 39.0 19200 15.0 19260 44.2 19320 35.7 19380 25.9 19440 26.7 19500 25.6 19560 39.6 19620 46.9 19680 44.1 19740 52.7 19800 49.2 19860 48.2 19920 99999.9 19980 99999.9 20040 99999.9 20100 99999.9 20160 99999.9 20220 99999.9 20280 99999.9 20340 99999.9 20400 99999.9 20460 99999.9 20520 56.9 20580 47.7 20640 49.6 20700 67.2 20760 52.9 20820 51.9 20880 39.6 20940 53.4 21000 37.5 21060 50.6 21120 44.8 21180 44.0 21240 40.1 21300 48.2 21360 99999.9 21420 99999.9 21480 99999.9 21540 99999.9 21600 99999.9 21660 99999.9 21720 99999.9 21780 99999.9 21840 99999.9 21900 99999.9 21960 99999.9 22020 99999.9 22080 99999.9 22140 99999.9 22200 99999.9 22260 99999.9 22320 99999.9 22380 99999.9 22440 99999.9 22500 99999.9 22560 99999.9 22620 60.9 22680 56.1 22740 52.4 22800 54.6 22860 32.8 22920 40.1 22980 31.7 23040 29.3 23100 99999.9 23160 99999.9 23220 99999.9 23280 99999.9 23340 54.5 23400 46.6 23460 18.7 23520 40.1 23580 36.4 23640 45.3 23700 36.5 23760 99999.9 23820 99999.9 23880 99999.9 23940 99999.9 24000 99999.9 24060 99999.9 24120 99999.9 24180 99999.9 24240 99999.9 24300 99999.9 24360 32.0 24420 36.5 24480 25.4 24540 17.9 24600 40.1 24660 32.9 24720 47.5 24780 28.2 24840 25.0 24900 41.5 24960 28.6 25020 32.1 25080 44.4 25140 42.8 25200 34.7 25260 42.9 25320 33.6 25380 99999.9 25440 99999.9 25500 99999.9 25560 99999.9 25620 99999.9 25680 36.5 25740 43.9 25800 35.6 25860 46.0 25920 48.4 25980 61.4 26040 51.9 26100 68.4 26160 99999.9 26220 99999.9 26280 99999.9 26340 99999.9 26400 99999.9 26460 99999.9 26520 68.5 26580 61.7 26640 43.8 26700 35.5 26760 34.1 26820 41.1 26880 34.1 26940 36.3 27000 40.5 27060 19.4 27120 3.0 27180 12.8 27240 17.2 27300 18.0 27360 18.1 27420 5.1 27480 23.0 27540 23.6 27600 -1.1 27660 99999.9 27720 99999.9 27780 99999.9 27840 99999.9 27900 99999.9 27960 99999.9 28020 99999.9 28080 99999.9 28140 99999.9 28200 99999.9 28260 24.4 28320 17.6 28380 16.4 28440 24.0 28500 17.2 28560 15.1 28620 17.1 28680 17.2 28740 20.3 28800 -1.3 28860 23.5 28920 10.0 28980 26.7 29040 20.0 29100 15.8 29160 24.4 29220 99999.9 29280 99999.9 29340 99999.9 29400 99999.9 29460 99999.9 29520 99999.9 29580 99999.9 29640 99999.9 29700 99999.9 29760 99999.9 29820 99999.9 29880 8.2 29940 99999.9 30000 99999.9 30060 99999.9 30120 99999.9 30180 99999.9 30240 99999.9 30300 99999.9 30360 99999.9 30420 99999.9 30480 99999.9 30540 99999.9 30600 99999.9 30660 99999.9 30720 99999.9 30780 99999.9 30840 99999.9 30900 12.5 30960 25.4 31020 21.9 31080 26.9 31140 23.8 31200 21.2 31260 18.2 31320 13.7 31380 28.2 31440 31.9 31500 99999.9 31560 20.4 31620 14.8 31680 36.4 31740 99999.9 31800 99999.9 31860 99999.9 31920 99999.9 31980 99999.9 32040 99999.9 32100 99999.9 32160 99999.9 32220 99999.9 32280 99999.9 32340 99999.9 32400 19.0 32460 33.9 32520 30.6 32580 16.2 32640 2.3 32700 23.5 32760 1.3 32820 31.3 32880 26.5 32940 99999.9 33000 99999.9 33060 99999.9 33120 99999.9 33180 99999.9 33240 99999.9 33300 99999.9 33360 99999.9 33420 99999.9 33480 99999.9 33540 99999.9 33600 99999.9 33660 99999.9 33720 99999.9 33780 99999.9 33840 99999.9 33900 99999.9 33960 99999.9 34020 99999.9 34080 15.8 34140 3.2 34200 21.9 34260 28.9 34320 31.4 34380 39.2 34440 33.5 34500 28.3 34560 39.9 34620 34.8 34680 52.0 34740 33.5 34800 35.2 34860 31.7 34920 54.3 34980 99999.9 35040 99999.9 35100 99999.9 35160 99999.9 35220 99999.9 35280 99999.9 35340 99999.9 35400 99999.9 35460 99999.9 35520 99999.9 35580 37.2 35640 23.8 35700 35.5 35760 64.5 35820 67.4 35880 62.6 35940 53.3 36000 61.7 36060 46.8 36120 26.7 36180 45.6 36240 55.0 36300 62.8 36360 44.1 36420 99999.9 36480 99999.9 36540 99999.9 36600 99999.9 36660 99999.9 36720 99999.9 36780 99999.9 36840 99999.9 36900 99999.9 36960 28.4 37020 99999.9 37080 99999.9 37140 99999.9 37200 99999.9 37260 99999.9 37320 99999.9 37380 99999.9 37440 99999.9 37500 99999.9 37560 99999.9 37620 99999.9 37680 99999.9 37740 99999.9 37800 99999.9 37860 99999.9 37920 99999.9 37980 45.3 38040 28.2 38100 32.0 38160 48.4 38220 27.4 38280 31.0 38340 27.2 38400 39.4 38460 20.0 38520 40.1 38580 37.0 38640 27.8 38700 36.8 38760 29.1 38820 30.0 38880 36.6 38940 99999.9 39000 99999.9 39060 99999.9 39120 99999.9 39180 99999.9 39240 99999.9 39300 99999.9 39360 99999.9 39420 99999.9 39480 99999.9 39540 35.7 39600 30.7 39660 33.6 39720 32.6 39780 35.3 39840 21.1 39900 18.6 39960 41.7 40020 43.2 40080 35.2 40140 22.1 40200 44.2 40260 22.6 40320 34.9 40380 99999.9 40440 99999.9 40500 99999.9 40560 99999.9 40620 99999.9 40680 99999.9 40740 99999.9 40800 99999.9 40860 99999.9 40920 99999.9 40980 99999.9 41040 99999.9 41100 99999.9 41160 99999.9 41220 99999.9 41280 99999.9 41340 99999.9 41400 99999.9 41460 99999.9 41520 99999.9 41580 99999.9 41640 99999.9 41700 99999.9 41760 99999.9 41820 43.7 41880 53.2 41940 51.7 42000 50.3 42060 44.4 42120 46.7 42180 45.0 42240 39.4 42300 29.7 42360 99999.9 42420 99999.9 42480 99999.9 42540 99999.9 42600 99999.9 42660 99999.9 42720 99999.9 42780 99999.9 42840 99999.9 42900 99.8 42960 99.6 43020 96.3 43080 90.7 43140 119.1 43200 110.2 43260 92.2 43320 74.6 43380 68.0 43440 79.0 43500 99999.9 43560 99999.9 43620 99999.9 43680 99999.9 43740 99999.9 43800 103.4 43860 91.5 43920 66.1 43980 59.1 44040 51.5 44100 49.8 44160 47.6 44220 42.8 44280 30.9 44340 99999.9 44400 99999.9 44460 99999.9 44520 99999.9 44580 99999.9 44640 99999.9 44700 99999.9 44760 48.0 44820 238.5 44880 98.8 44940 44.8 45000 99999.9 45060 99999.9 45120 99999.9 45180 99999.9 45240 99999.9 45300 99999.9 45360 99999.9 45420 99999.9 45480 99999.9 45540 99999.9 45600 99999.9 45660 99999.9 45720 99999.9 45780 99999.9 45840 99999.9 45900 99999.9 45960 99999.9 46020 99999.9