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 19 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) 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 99999.9 32460 99999.9 32520 99999.9 32580 99999.9 32640 99999.9 32700 99999.9 32760 99999.9 32820 99999.9 32880 99999.9 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 99999.9 34140 99999.9 34200 99999.9 34260 99999.9 34320 99999.9 34380 99999.9 34440 99999.9 34500 99999.9 34560 99999.9 34620 41.3 34680 49.2 34740 34.3 34800 52.4 34860 43.9 34920 54.8 34980 37.6 35040 38.7 35100 44.2 35160 40.9 35220 49.9 35280 52.9 35340 41.6 35400 43.9 35460 99999.9 35520 99999.9 35580 99999.9 35640 99999.9 35700 99999.9 35760 99999.9 35820 99999.9 35880 99999.9 35940 99999.9 36000 29.8 36060 99999.9 36120 99999.9 36180 99999.9 36240 99999.9 36300 99999.9 36360 99999.9 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 99999.9 37020 24.4 37080 28.8 37140 28.3 37200 42.4 37260 43.4 37320 51.7 37380 47.9 37440 46.9 37500 43.7 37560 54.0 37620 99999.9 37680 99999.9 37740 99999.9 37800 99999.9 37860 99999.9 37920 99999.9 37980 68.3 38040 74.0 38100 71.0 38160 68.5 38220 28.8 38280 99999.9 38340 99999.9 38400 99999.9 38460 99999.9 38520 99999.9 38580 99999.9 38640 99999.9 38700 99999.9 38760 99999.9 38820 99999.9 38880 53.0 38940 49.6 39000 51.4 39060 51.1 39120 64.0 39180 65.5 39240 57.5 39300 43.5 39360 34.9 39420 31.4 39480 29.1 39540 34.3 39600 19.4 39660 27.4 39720 99999.9 39780 99999.9 39840 99999.9 39900 99999.9 39960 99999.9 40020 99999.9 40080 99999.9 40140 99999.9 40200 99999.9 40260 99999.9 40320 99999.9 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 27.3 41700 30.8 41760 26.2 41820 10.0 41880 21.6 41940 24.4 42000 34.1 42060 41.0 42120 33.0 42180 26.1 42240 42.9 42300 18.9 42360 22.2 42420 19.5 42480 99999.9 42540 99999.9 42600 99999.9 42660 99999.9 42720 99999.9 42780 99999.9 42840 99999.9 42900 99999.9 42960 99999.9 43020 99999.9 43080 99999.9 43140 99999.9 43200 99999.9 43260 99999.9 43320 99999.9 43380 37.2 43440 32.6 43500 12.9 43560 31.9 43620 22.0 43680 31.6 43740 21.1 43800 27.6 43860 21.6 43920 30.1 43980 25.2 44040 34.0 44100 51.9 44160 18.0 44220 99999.9 44280 99999.9 44340 99999.9 44400 99999.9 44460 99999.9 44520 99999.9 44580 99999.9 44640 99999.9 44700 99999.9 44760 99999.9 44820 28.7 44880 99999.9 44940 99999.9 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 28.1 45660 34.6 45720 16.1 45780 22.4 45840 15.5 45900 24.0 45960 38.6 46020 40.8 46080 39.6 46140 42.7 46200 56.5 46260 67.0 46320 71.2 46380 112.9 46440 108.3 46500 58.2 46560 77.3 46620 79.4 46680 107.8 46740 94.3 46800 108.6 46860 102.9 46920 99999.9 46980 99999.9 47040 99999.9 47100 99999.9 47160 99999.9 47220 99999.9 47280 99999.9 47340 99999.9 47400 99999.9 47460 99999.9 47520 101.0 47580 46.3 47640 54.2 47700 37.9 47760 46.6 47820 45.7 47880 53.0 47940 45.9 48000 53.1 48060 60.8 48120 84.0 48180 112.5 48240 56.3 48300 46.1 48360 99999.9 48420 99999.9 48480 99999.9 48540 99999.9 48600 99999.9 48660 99999.9 48720 99999.9 48780 99999.9 48840 99999.9 48900 99999.9 48960 99999.9 49020 99999.9 49080 99999.9 49140 99999.9 49200 99999.9 49260 99999.9 49320 99999.9 49380 99999.9 49440 64.2 49500 128.0 49560 148.0 49620 59.0 49680 70.3 49740 68.0 49800 67.6 49860 57.8 49920 61.2 49980 69.9 50040 53.0 50100 56.7 50160 99999.9 50220 99999.9 50280 99999.9 50340 99999.9 50400 99999.9 50460 99999.9 50520 99999.9 50580 99999.9 50640 99999.9 50700 99999.9 50760 99999.9 50820 99999.9 50880 99999.9 50940 99999.9 51000 99999.9 51060 99999.9 51120 99999.9 51180 99999.9 51240 99999.9 51300 99999.9 51360 99999.9 51420 99999.9 51480 99999.9 51540 99999.9 51600 89.6 51660 108.1 51720 65.4 51780 77.5 51840 68.0 51900 51.3 51960 65.8 52020 63.7 52080 77.4 52140 49.7 52200 73.2 52260 79.0 52320 78.9 52380 67.8 52440 99999.9 52500 99999.9 52560 99999.9 52620 82.4 52680 99999.9 52740 99999.9 52800 99999.9 52860 99999.9 52920 99999.9 52980 99999.9 53040 99999.9 53100 99999.9 53160 99999.9 53220 99999.9 53280 99999.9 53340 99999.9 53400 99999.9 53460 99999.9 53520 99999.9 53580 99999.9 53640 94.8 53700 104.4 53760 94.9 53820 95.4 53880 61.1 53940 84.9 54000 78.2 54060 78.8 54120 74.2 54180 56.6 54240 71.2 54300 68.6 54360 56.5 54420 58.7 54480 99999.9 54540 99999.9 54600 99999.9 54660 99999.9 54720 99999.9 54780 99999.9 54840 99999.9 54900 99999.9 54960 99999.9 55020 99999.9 55080 99999.9 55140 99999.9 55200 99999.9 55260 99999.9 55320 99999.9 55380 99999.9 55440 67.7 55500 49.7 55560 71.3 55620 65.1 55680 48.3 55740 45.5 55800 44.0 55860 37.5 55920 69.2 55980 59.8 56040 64.0 56100 60.1 56160 55.4 56220 99999.9 56280 99999.9 56340 99999.9 56400 99999.9 56460 99999.9 56520 99999.9 56580 99999.9 56640 99999.9 56700 99999.9 56760 99999.9 56820 99999.9 56880 99999.9 56940 99999.9 57000 99999.9 57060 99999.9 57120 26.7 57180 62.6 57240 53.8 57300 51.9 57360 45.7 57420 68.6 57480 49.6 57540 49.0 57600 54.8 57660 57.9 57720 46.0 57780 58.6 57840 41.1 57900 50.0 57960 49.3 58020 99999.9 58080 151.8 58140 105.3 58200 78.4 58260 83.2 58320 99999.9 58380 99999.9 58440 99999.9 58500 99999.9 58560 99999.9 58620 99999.9 58680 99999.9 58740 99999.9 58800 99999.9 58860 99999.9 58920 99999.9 58980 99999.9 59040 99999.9 59100 99999.9 59160 99999.9 59220 99999.9 59280 99999.9 59340 99999.9 59400 99999.9 59460 99999.9 59520 99999.9 59580 99999.9 59640 99999.9 59700 99999.9 59760 99999.9 59820 47.3 59880 45.9 59940 38.0 60000 62.6 60060 47.1 60120 42.6 60180 39.0 60240 38.4 60300 34.1 60360 37.2 60420 57.7 60480 31.1 60540 30.5 60600 54.2 60660 99999.9 60720 99999.9 60780 99999.9 60840 99999.9 60900 99999.9 60960 99999.9 61020 99999.9 61080 99999.9 61140 99999.9 61200 99999.9 61260 99999.9 61320 99999.9 61380 99999.9 61440 99999.9 61500 99999.9 61560 30.2 61620 45.9 61680 33.1 61740 28.3 61800 18.5 61860 22.3 61920 33.4 61980 34.6 62040 42.5 62100 42.1 62160 31.5 62220 47.3 62280 32.2 62340 28.0 62400 37.1 62460 99999.9 62520 99999.9 62580 99999.9 62640 99999.9 62700 99999.9 62760 99999.9 62820 99999.9 62880 99999.9 62940 99999.9 63000 37.1 63060 99999.9 63120 99999.9 63180 99999.9 63240 99999.9 63300 99999.9 63360 99999.9 63420 99999.9 63480 99999.9 63540 99999.9 63600 99999.9 63660 99999.9 63720 99999.9 63780 99999.9 63840 99999.9 63900 99999.9 63960 99999.9 64020 30.6 64080 46.6 64140 41.2 64200 40.4 64260 50.4 64320 46.5 64380 46.5 64440 38.6 64500 54.4 64560 32.7 64620 28.8 64680 36.5 64740 33.1 64800 99999.9 64860 99999.9 64920 99999.9 64980 99999.9 65040 99999.9 65100 99999.9 65160 36.8 65220 31.9 65280 35.1 65340 40.7 65400 29.4 65460 46.0 65520 54.9 65580 376.6 65640 48.0 65700 55.7 65760 36.4 65820 33.6 65880 19.7 65940 26.6 66000 99999.9 66060 99999.9 66120 99999.9 66180 99999.9 66240 99999.9 66300 99999.9 66360 33.6 66420 27.2 66480 27.4 66540 33.0 66600 27.2 66660 36.0 66720 22.3 66780 19.9 66840 30.6 66900 99999.9 66960 99999.9 67020 99999.9 67080 99999.9 67140 99999.9 67200 99999.9 67260 26.5 67320 33.3 67380 20.4 67440 18.5 67500 99999.9 67560 99999.9 67620 99999.9 67680 99999.9 67740 99999.9 67800 99999.9 67860 99999.9 67920 99999.9 67980 99999.9 68040 99999.9 68100 99999.9 68160 99999.9 68220 99999.9 68280 99999.9