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 02 12 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) 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 99999.9 45660 99999.9 45720 99999.9 45780 99999.9 45840 99999.9 45900 99999.9 45960 99999.9 46020 99999.9 46080 99999.9 46140 99999.9 46200 99999.9 46260 99999.9 46320 99999.9 46380 99999.9 46440 99999.9 46500 99999.9 46560 99999.9 46620 99999.9 46680 99999.9 46740 99999.9 46800 99999.9 46860 99999.9 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 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 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 65.1 52920 65.9 52980 65.0 53040 63.6 53100 48.1 53160 66.9 53220 100.1 53280 62.4 53340 73.2 53400 73.7 53460 99.0 53520 94.5 53580 89.7 53640 65.9 53700 58.8 53760 76.9 53820 82.7 53880 76.2 53940 60.8 54000 99999.9 54060 99999.9 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 99999.9 55080 99999.9 55140 99999.9 55200 99999.9 55260 99999.9 55320 99999.9 55380 99999.9 55440 99999.9 55500 99999.9 55560 112.2 55620 103.9 55680 113.2 55740 112.7 55800 121.7 55860 106.3 55920 89.6 55980 83.8 56040 73.4 56100 80.4 56160 75.8 56220 85.9 56280 92.6 56340 66.2 56400 66.8 56460 60.6 56520 68.2 56580 84.5 56640 99999.9 56700 99999.9 56760 99999.9 56820 77.6 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 99999.9 57540 99999.9 57600 99999.9 57660 99999.9 57720 99999.9 57780 99999.9 57840 99999.9 57900 97.9 57960 89.5 58020 95.8 58080 107.0 58140 109.5 58200 100.0 58260 94.7 58320 106.0 58380 118.8 58440 86.3 58500 105.0 58560 104.9 58620 118.3 58680 112.6 58740 132.4 58800 127.5 58860 99999.9 58920 99999.9 58980 99999.9 59040 99999.9 59100 99999.9 59160 99999.9 59220 94.6 59280 101.6 59340 84.6 59400 77.1 59460 88.5 59520 88.6 59580 97.3 59640 108.7 59700 91.4 59760 80.0 59820 85.4 59880 80.2 59940 84.4 60000 99999.9 60060 99999.9 60120 99999.9 60180 99999.9 60240 99999.9 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 82.8 60960 61.8 61020 75.9 61080 73.5 61140 64.1 61200 97.5 61260 69.2 61320 46.9 61380 57.8 61440 59.9 61500 60.7 61560 65.8 61620 99999.9 61680 99999.9 61740 99999.9 61800 99999.9 61860 99999.9 61920 99999.9 61980 99999.9 62040 99999.9 62100 99999.9 62160 99999.9 62220 79.0 62280 73.5 62340 61.0 62400 68.1 62460 83.0 62520 74.7 62580 66.9 62640 44.8 62700 82.5 62760 97.6 62820 99999.9 62880 99999.9 62940 99999.9 63000 99999.9 63060 99999.9 63120 99999.9 63180 85.4 63240 56.8 63300 50.0 63360 43.9 63420 37.1 63480 38.8 63540 34.2 63600 25.1 63660 37.7 63720 99999.9 63780 99999.9 63840 99999.9 63900 99999.9 63960 99999.9 64020 99999.9 64080 54.2 64140 39.6 64200 42.1 64260 40.4 64320 42.7 64380 36.3 64440 99999.9 64500 99999.9 64560 99999.9 64620 99999.9 64680 99999.9 64740 99999.9 64800 99999.9 64860 99999.9 64920 99999.9 64980 99999.9 65040 99999.9 65100 99999.9 65160 99999.9 65220 99999.9 65280 99999.9 65340 60.4 65400 44.5 65460 27.2 65520 27.8 65580 36.2 65640 27.9 65700 21.7 65760 22.5 65820 12.9 65880 22.4 65940 15.4 66000 32.4 66060 26.2 66120 15.5 66180 27.0 66240 19.6 66300 33.9 66360 18.7 66420 35.8 66480 33.4 66540 43.3 66600 54.3 66660 84.5 66720 80.7 66780 69.6 66840 92.2 66900 70.1 66960 92.3 67020 79.2 67080 75.3 67140 99999.9 67200 99999.9 67260 99999.9 67320 99999.9 67380 99999.9 67440 99999.9 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 68340 99999.9 68400 99999.9 68460 99999.9 68520 99999.9 68580 99999.9 68640 99999.9 68700 72.8 68760 74.7 68820 58.1 68880 65.3 68940 65.1 69000 70.8 69060 77.9 69120 81.5 69180 68.1 69240 55.9 69300 68.1 69360 61.0 69420 74.8 69480 75.4 69540 60.1 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 68.1 70560 82.7 70620 78.0 70680 75.5 70740 81.7 70800 91.1 70860 68.0 70920 88.4 70980 95.1 71040 97.9 71100 89.7 71160 130.2 71220 108.2 71280 117.7 71340 100.6 71400 99999.9 71460 99999.9 71520 99999.9 71580 126.4 71640 99999.9 71700 99999.9 71760 99999.9 71820 99999.9 71880 99999.9 71940 99999.9 72000 99999.9 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 109.6 72660 88.0 72720 104.8 72780 106.6 72840 101.3 72900 88.5 72960 77.3 73020 97.8 73080 75.5 73140 82.0 73200 72.1 73260 90.3 73320 79.1 73380 84.8 73440 101.8 73500 92.6 73560 99999.9 73620 99999.9 73680 99999.9 73740 99999.9 73800 99999.9 73860 99999.9 73920 99999.9 73980 99999.9 74040 99999.9 74100 99999.9 74160 99999.9 74220 99999.9 74280 99999.9 74340 99999.9 74400 99999.9 74460 98.1 74520 104.3 74580 95.1 74640 109.0 74700 117.2 74760 115.7 74820 118.1 74880 113.6 74940 112.5 75000 118.1 75060 103.0 75120 104.2 75180 123.9 75240 118.3 75300 118.5 75360 124.8 75420 120.2 75480 99999.9 75540 99999.9 75600 99999.9 75660 99999.9 75720 99999.9 75780 99999.9 75840 99999.9 75900 99999.9 75960 99999.9 76020 99999.9 76080 99999.9 76140 99999.9 76200 99999.9 76260 99999.9 76320 99999.9 76380 99999.9 76440 99999.9 76500 99999.9 76560 99999.9 76620 136.7 76680 131.1 76740 99999.9 76800 99999.9 76860 99999.9 76920 99999.9 76980 99999.9 77040 99999.9 77100 115.1 77160 122.4 77220 130.9 77280 111.8 77340 101.6 77400 122.9 77460 119.8 77520 126.9 77580 124.0 77640 115.2 77700 101.2 77760 88.8 77820 99999.9 77880 99999.9 77940 99999.9 78000 99999.9 78060 99999.9 78120 99999.9 78180 64.1 78240 50.5 78300 37.8 78360 37.7 78420 50.4 78480 35.7 78540 37.8 78600 42.8 78660 39.3 78720 99999.9 78780 99999.9 78840 99999.9 78900 99999.9 78960 99999.9 79020 99999.9 79080 44.7 79140 43.2 79200 32.9 79260 33.5 79320 29.2 79380 41.2 79440 32.7 79500 26.4 79560 32.4 79620 57.5 79680 96.4 79740 33.5 79800 96.5 79860 24.2 79920 23.3 79980 63.4 80040 28.1 80100 30.8 80160 25.8 80220 39.7 80280 66.4 80340 27.5 80400 99999.9 80460 99999.9 80520 99999.9 80580 99999.9 80640 99999.9