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 11 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) 43680 99999.9 43740 99999.9 43800 99999.9 43860 99999.9 43920 99999.9 43980 99999.9 44040 99999.9 44100 20.9 44160 31.5 44220 109.9 44280 15.5 44340 5.1 44400 -4.6 44460 -1.3 44520 0.5 44580 73.5 44640 101.3 44700 146.2 44760 356.7 44820 257.4 44880 115.6 44940 180.6 45000 152.3 45060 130.2 45120 161.8 45180 131.1 45240 118.4 45300 95.6 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 104.0 46020 102.5 46080 100.5 46140 117.6 46200 99.4 46260 94.6 46320 102.3 46380 120.8 46440 129.6 46500 124.2 46560 151.8 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 128.0 48660 123.2 48720 124.7 48780 131.6 48840 137.7 48900 125.3 48960 115.7 49020 101.4 49080 103.1 49140 103.6 49200 109.4 49260 100.0 49320 125.0 49380 138.6 49440 210.6 49500 99999.9 49560 99999.9 49620 99999.9 49680 99999.9 49740 99999.9 49800 99999.9 49860 84.3 49920 95.1 49980 31.0 50040 29.9 50100 58.9 50160 50.0 50220 37.1 50280 -4.6 50340 -1.5 50400 -10.6 50460 99999.9 50520 99999.9 50580 99999.9 50640 99999.9 50700 99999.9 50760 99999.9 50820 -24.3 50880 -15.6 50940 18.9 51000 25.5 51060 32.5 51120 17.0 51180 62.1 51240 49.7 51300 43.7 51360 92.5 51420 92.1 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 155.2 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 101.4 53460 82.1 53520 86.7 53580 74.4 53640 87.7 53700 121.8 53760 127.6 53820 85.0 53880 91.2 53940 82.2 54000 84.8 54060 78.1 54120 74.3 54180 89.6 54240 68.9 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 57.6 55260 59.4 55320 62.4 55380 62.3 55440 43.5 55500 59.1 55560 49.9 55620 33.5 55680 47.2 55740 43.2 55800 37.5 55860 44.2 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 9.1 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 25.5 57420 17.2 57480 21.3 57540 16.4 57600 33.0 57660 25.9 57720 9.5 57780 19.1 57840 27.1 57900 10.2 57960 29.2 58020 40.4 58080 39.0 58140 30.9 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 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 39.3 59880 54.3 59940 29.9 60000 61.2 60060 36.0 60120 39.7 60180 37.2 60240 37.4 60300 30.5 60360 38.8 60420 47.2 60480 47.0 60540 35.6 60600 58.5 60660 44.1 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 80.5 61440 78.8 61500 99999.9 61560 99999.9 61620 99999.9 61680 99999.9 61740 99999.9 61800 99999.9 61860 95.0 61920 104.0 61980 167.4 62040 138.8 62100 213.8 62160 114.6 62220 129.9 62280 25.0 62340 12.5 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 19.7 63000 12.7 63060 8.2 63120 13.9 63180 29.3 63240 24.0 63300 25.1 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 99999.9 64080 99999.9 64140 99999.9 64200 99999.9