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 22 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) 38520 99999.9 38580 99999.9 38640 99999.9 38700 99999.9 38760 99999.9 38820 99999.9 38880 99999.9 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 99999.9 39600 99999.9 39660 99999.9 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 57.1 40440 55.4 40500 44.4 40560 60.3 40620 39.2 40680 40.4 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 22.8 41400 20.6 41460 27.2 41520 23.8 41580 10.0 41640 15.7 41700 18.0 41760 17.8 41820 23.7 41880 36.0 41940 36.7 42000 36.1 42060 23.4 42120 27.1 42180 99999.9 42240 99999.9 42300 99999.9 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 99999.9 42960 99999.9 43020 99999.9 43080 6.9 43140 10.3 43200 2.4 43260 16.3 43320 16.9 43380 23.9 43440 31.0 43500 18.2 43560 35.3 43620 99999.9 43680 99999.9 43740 99999.9 43800 99999.9 43860 99999.9 43920 99999.9 43980 9.0 44040 18.7 44100 38.4 44160 21.3 44220 28.6 44280 20.7 44340 26.1 44400 34.2 44460 31.4 44520 17.1 44580 47.7 44640 45.3 44700 31.0 44760 26.5 44820 99999.9 44880 99999.9 44940 99999.9 45000 99999.9 45060 99999.9 45120 99999.9 45180 99999.9 45240 99999.9 45300 24.1 45360 27.1 45420 16.9 45480 5.5 45540 11.1 45600 12.2 45660 6.6 45720 2.4 45780 9.3 45840 99999.9 45900 99999.9 45960 99999.9 46020 99999.9 46080 99999.9 46140 99999.9 46200 99999.9 46260 10.1 46320 9.2 46380 6.2 46440 7.6 46500 7.6 46560 7.2 46620 18.0 46680 14.4 46740 22.3 46800 26.6 46860 27.0 46920 43.4 46980 36.2 47040 35.0 47100 34.5 47160 10.7 47220 16.2 47280 17.0 47340 17.8 47400 15.1 47460 99999.9 47520 99999.9 47580 99999.9 47640 99999.9 47700 99999.9 47760 99999.9 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 29.5 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 38.0 49680 32.9 49740 42.5 49800 41.7 49860 40.1 49920 40.5 49980 22.0 50040 38.0 50100 26.5 50160 38.4 50220 50.2 50280 35.1 50340 33.8 50400 33.7 50460 31.8 50520 47.8 50580 43.5 50640 51.8 50700 39.1 50760 43.9 50820 35.5 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 27.3 51540 15.0 51600 18.6 51660 33.6 51720 21.4 51780 17.1 51840 23.6 51900 34.7 51960 15.0 52020 20.5 52080 13.6 52140 25.6 52200 25.2 52260 28.8 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 19.1 53280 28.8 53340 13.2 53400 20.9 53460 28.5 53520 35.1 53580 26.4 53640 32.4 53700 31.9 53760 13.9 53820 19.0 53880 38.1 53940 38.6 54000 30.4 54060 21.6 54120 99999.9 54180 99999.9 54240 99999.9 54300 99999.9 54360 99999.9 54420 99999.9 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 46.4 55080 44.5 55140 29.1 55200 40.4 55260 32.6 55320 25.1 55380 37.8 55440 29.0 55500 29.7 55560 30.8 55620 39.9 55680 33.8 55740 38.2 55800 26.2 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 32.1 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 99999.9 57180 99999.9 57240 99999.9 57300 99999.9 57360 99999.9 57420 99999.9 57480 16.8 57540 24.9 57600 34.6 57660 27.5 57720 44.1 57780 18.9 57840 40.7 57900 35.9 57960 33.5 58020 19.0 58080 39.3 58140 30.6 58200 37.0 58260 30.3 58320 35.0 58380 32.1 58440 40.7 58500 34.0 58560 36.1 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 46.3 59580 48.6 59640 49.0 59700 15.2 59760 36.4 59820 31.9 59880 30.1 59940 39.8 60000 33.9 60060 29.1 60120 27.7 60180 33.8 60240 99999.9 60300 37.3 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 99999.9 60960 99999.9 61020 99999.9 61080 99999.9 61140 99999.9 61200 99999.9 61260 99999.9 61320 27.5 61380 20.7 61440 31.7 61500 22.9 61560 24.3 61620 27.8 61680 27.1 61740 36.4 61800 34.7 61860 36.1 61920 40.0 61980 37.8 62040 32.8 62100 44.1 62160 36.4 62220 41.7 62280 37.0 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 44.1 63000 46.9 63060 36.3 63120 34.1 63180 37.3 63240 29.6 63300 45.9 63360 37.9 63420 39.0 63480 40.9 63540 53.9 63600 53.7 63660 37.5 63720 26.5 63780 55.7 63840 70.2 63900 68.5 63960 36.5 64020 64.9 64080 99999.9 64140 99999.9 64200 99999.9 64260 99999.9 64320 99999.9 64380 99999.9 64440 99999.9 64500 99999.9 64560 99999.9 64620 99999.9 64680 56.8 64740 69.0 64800 39.4 64860 64.9 64920 61.9 64980 61.6 65040 62.9 65100 80.0 65160 55.4 65220 61.0 65280 68.6 65340 59.2 65400 73.8 65460 69.2 65520 57.5 65580 65.4 65640 80.0 65700 77.1 65760 78.9 65820 66.4 65880 75.9 65940 77.4 66000 99999.9 66060 99999.9 66120 99999.9 66180 99999.9 66240 99999.9 66300 99999.9 66360 99999.9 66420 99999.9 66480 99999.9 66540 99999.9 66600 54.1 66660 99999.9 66720 99999.9 66780 99999.9 66840 99999.9 66900 99999.9 66960 99999.9 67020 99999.9 67080 99999.9 67140 99999.9 67200 99999.9 67260 99999.9 67320 99999.9 67380 99999.9 67440 99999.9 67500 66.2 67560 67.5 67620 65.7 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 54.2 68340 63.0 68400 71.6 68460 55.6 68520 55.5 68580 68.7 68640 64.7 68700 85.8 68760 57.8 68820 60.5 68880 60.9 68940 75.1 69000 49.8 69060 67.0 69120 99999.9 69180 99999.9 69240 99999.9 69300 99999.9 69360 99999.9 69420 99999.9 69480 99999.9 69540 99999.9 69600 99999.9 69660 99999.9 69720 99999.9 69780 99999.9 69840 99999.9 69900 99999.9 69960 99999.9 70020 99999.9 70080 99999.9 70140 99999.9 70200 99999.9 70260 99999.9 70320 99999.9 70380 99999.9 70440 99999.9 70500 99999.9 70560 73.2 70620 64.1 70680 72.9 70740 69.3 70800 67.4 70860 68.4 70920 93.8 70980 53.3 71040 59.9 71100 72.2 71160 59.9 71220 30.6 71280 50.6 71340 99999.9 71400 67.4 71460 86.2 71520 78.6 71580 76.0 71640 89.9 71700 85.4 71760 89.0 71820 99999.9 71880 99999.9 71940 99999.9 72000 72.0 72060 99999.9 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 99999.9 73200 99999.9 73260 99999.9 73320 99999.9 73380 99999.9 73440 99999.9 73500 67.3 73560 68.6 73620 53.7 73680 41.3 73740 28.0 73800 22.2 73860 26.2 73920 99999.9 73980 99999.9 74040 99999.9 74100 99999.9 74160 99999.9 74220 99999.9 74280 14.1 74340 25.9 74400 28.4 74460 23.8 74520 23.7 74580 24.8 74640 99999.9 74700 99999.9 74760 99999.9 74820 99999.9 74880 99999.9 74940 22.1 75000 24.1 75060 19.2 75120 22.5 75180 21.4 75240 12.1 75300 12.8 75360 28.3 75420 25.6 75480 99999.9 75540 99999.9 75600 99999.9 75660 99999.9 75720 99999.9 75780 99999.9 75840 25.7 75900 16.2 75960 21.5 76020 19.8 76080 23.7 76140 21.9 76200 25.6 76260 13.8 76320 99999.9 76380 99999.9 76440 99999.9 76500 99999.9 76560 99999.9 76620 99999.9 76680 99999.9 76740 99999.9