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 03 14 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) 47820 99999.9 47880 99999.9 47940 99999.9 48000 99999.9 48060 99999.9 48120 99999.9 48180 99999.9 48240 99999.9 48300 99999.9 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 99999.9 49500 99999.9 49560 99999.9 49620 99999.9 49680 99999.9 49740 99999.9 49800 99999.9 49860 99999.9 49920 99999.9 49980 99999.9 50040 99999.9 50100 99999.9 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 99999.9 51660 99999.9 51720 99999.9 51780 99999.9 51840 99999.9 51900 99999.9 51960 99999.9 52020 99999.9 52080 99999.9 52140 99999.9 52200 99999.9 52260 99999.9 52320 99999.9 52380 99999.9 52440 99999.9 52500 99999.9 52560 99999.9 52620 99999.9 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 99999.9 53700 99999.9 53760 99999.9 53820 99999.9 53880 99999.9 53940 99999.9 54000 99999.9 54060 99999.9 54120 99999.9 54180 99999.9 54240 99999.9 54300 99999.9 54360 43.6 54420 42.4 54480 52.2 54540 42.9 54600 40.2 54660 39.6 54720 46.6 54780 43.5 54840 42.8 54900 39.9 54960 35.3 55020 63.9 55080 53.1 55140 61.5 55200 36.4 55260 31.6 55320 25.8 55380 21.1 55440 26.2 55500 22.6 55560 99999.9 55620 99999.9 55680 99999.9 55740 99999.9 55800 99999.9 55860 99999.9 55920 99999.9 55980 99999.9 56040 99999.9 56100 99999.9 56160 99999.9 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 26.3 57000 42.4 57060 33.4 57120 31.5 57180 36.9 57240 39.6 57300 41.0 57360 44.3 57420 32.1 57480 28.6 57540 25.0 57600 26.9 57660 45.9 57720 47.9 57780 43.0 57840 99999.9 57900 99999.9 57960 99999.9 58020 47.4 58080 99999.9 58140 99999.9 58200 99999.9 58260 99999.9 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 41.6 59160 40.7 59220 39.6 59280 34.4 59340 30.4 59400 39.4 59460 54.0 59520 46.1 59580 26.6 59640 40.9 59700 40.6 59760 28.6 59820 34.1 59880 33.0 59940 49.0 60000 31.6 60060 35.5 60120 29.1 60180 50.4 60240 32.7 60300 99999.9 60360 99999.9 60420 99999.9 60480 99999.9 60540 99999.9 60600 99999.9 60660 99999.9 60720 99999.9 60780 99999.9 60840 99999.9 60900 42.5 60960 35.7 61020 39.2 61080 34.7 61140 33.0 61200 50.7 61260 33.9 61320 50.5 61380 37.7 61440 39.7 61500 60.7 61560 54.8 61620 46.6 61680 47.3 61740 44.9 61800 49.5 61860 45.6 61920 57.6 61980 42.6 62040 51.0 62100 99999.9 62160 99999.9 62220 99999.9 62280 99999.9 62340 99999.9 62400 99999.9 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 99999.9 63060 99999.9 63120 99999.9 63180 99999.9 63240 99999.9 63300 99999.9 63360 99999.9 63420 99999.9 63480 46.1 63540 30.7 63600 42.0 63660 43.7 63720 53.4 63780 44.1 63840 45.8 63900 51.8 63960 57.8 64020 56.0 64080 60.5 64140 39.4 64200 51.8 64260 60.4 64320 59.2 64380 48.4 64440 51.5 64500 59.0 64560 46.9 64620 56.9 64680 43.5 64740 41.1 64800 26.3 64860 25.4 64920 40.9 64980 51.2 65040 44.4 65100 46.2 65160 31.3 65220 23.4 65280 23.3 65340 99999.9 65400 99999.9 65460 99999.9 65520 99999.9 65580 99999.9 65640 99999.9 65700 30.5 65760 99999.9 65820 99999.9 65880 70.8 65940 74.8 66000 68.8 66060 55.1 66120 37.6 66180 42.9 66240 72.7 66300 75.9 66360 54.4 66420 51.7 66480 99999.9 66540 99999.9 66600 99999.9 66660 99999.9 66720 99999.9 66780 99999.9 66840 43.0 66900 45.2 66960 40.1 67020 39.7 67080 28.9 67140 26.4 67200 34.4 67260 23.7 67320 5.2 67380 38.2 67440 15.1 67500 -4.2 67560 -1.6 67620 12.5 67680 9.3 67740 10.8 67800 -6.7 67860 99999.9 67920 99999.9 67980 99999.9 68040 13.6 68100 -2.9 68160 -2.7 68220 -0.0 68280 2.1 68340 3.4 68400 28.2 68460 43.9 68520 25.9 68580 26.1 68640 40.6 68700 99999.9 68760 99999.9 68820 99999.9 68880 99999.9 68940 99999.9 69000 99999.9 69060 99999.9 69120 99999.9 69180 99999.9 69240 99999.9 69300 46.0 69360 45.5 69420 46.6 69480 41.3 69540 30.5 69600 42.8 69660 43.0 69720 41.2 69780 39.0 69840 45.7 69900 44.4 69960 38.5 70020 40.4 70080 52.8 70140 32.0 70200 67.1 70260 57.7 70320 52.2 70380 46.2 70440 48.2 70500 45.1 70560 99999.9 70620 99999.9 70680 99999.9 70740 99999.9 70800 99999.9 70860 99999.9 70920 99999.9 70980 99999.9 71040 99999.9 71100 46.5 71160 45.8 71220 36.3 71280 41.8 71340 55.4 71400 36.2 71460 40.0 71520 75.6 71580 59.4 71640 80.9 71700 70.1 71760 66.5 71820 67.2 71880 99999.9 71940 99999.9 72000 99999.9 72060 60.7 72120 99999.9 72180 99999.9 72240 99999.9 72300 99999.9 72360 99999.9 72420 99999.9 72480 99999.9 72540 99999.9 72600 99999.9 72660 99999.9 72720 99999.9 72780 99999.9 72840 99999.9 72900 99999.9 72960 99999.9 73020 99999.9 73080 99999.9 73140 51.3 73200 47.5 73260 41.8 73320 51.5 73380 64.4 73440 59.4 73500 44.7 73560 57.8 73620 55.5 73680 47.7 73740 48.8 73800 48.0 73860 51.8 73920 62.3 73980 47.9 74040 50.5 74100 43.7 74160 58.3 74220 45.7 74280 63.9 74340 99999.9 74400 99999.9 74460 99999.9 74520 99999.9 74580 99999.9 74640 99999.9 74700 99999.9 74760 99999.9 74820 99999.9 74880 99999.9 74940 99999.9 75000 99999.9 75060 99999.9 75120 99999.9 75180 99999.9 75240 99999.9 75300 99999.9 75360 99999.9 75420 99999.9 75480 99999.9 75540 99999.9 75600 99999.9 75660 99999.9 75720 63.6 75780 65.2 75840 59.3 75900 60.2 75960 35.1 76020 50.4 76080 49.1 76140 38.9 76200 50.4 76260 52.3 76320 44.7 76380 65.8 76440 58.4 76500 49.1 76560 54.6 76620 63.4 76680 59.9 76740 67.9 76800 72.2 76860 58.2 76920 99999.9 76980 99999.9 77040 99999.9 77100 99999.9 77160 99999.9 77220 99999.9 77280 99999.9 77340 99999.9 77400 99999.9 77460 99999.9 77520 31.8 77580 42.9 77640 44.2 77700 48.2 77760 27.8 77820 55.5 77880 36.7 77940 38.7 78000 43.8 78060 44.0 78120 45.6 78180 64.8 78240 37.7 78300 35.4 78360 32.5 78420 27.3 78480 48.4 78540 56.2 78600 52.4 78660 57.8 78720 48.0 78780 51.3 78840 30.0 78900 47.9 78960 38.0 79020 58.0 79080 48.0 79140 18.1 79200 40.7 79260 99999.9 79320 99999.9 79380 99999.9 79440 99999.9 79500 99999.9 79560 99999.9 79620 99999.9 79680 99999.9 79740 99999.9 79800 99999.9 79860 99999.9 79920 99999.9 79980 99999.9 80040 99999.9 80100 99999.9 80160 99999.9 80220 99999.9 80280 99999.9 80340 99999.9 80400 99999.9 80460 99999.9 80520 99999.9 80580 55.0 80640 99999.9 80700 99999.9 80760 99999.9 80820 99999.9 80880 99999.9 80940 99999.9 81000 99999.9 81060 99999.9 81120 67.7 81180 78.9 81240 62.0 81300 68.2 81360 61.3 81420 59.6 81480 63.1 81540 72.0 81600 43.3 81660 42.1 81720 34.0 81780 35.9 81840 99999.9 81900 99999.9 81960 99999.9 82020 99999.9 82080 99999.9