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 NO (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) NO(pptv) 43680 99999.9 43740 99999.9 43800 99999.9 43860 99999.9 43920 99999.9 43980 99999.9 44040 99999.9 44100 34.1 44160 35.9 44220 28.1 44280 20.1 44340 25.6 44400 14.6 44460 9.2 44520 4.5 44580 6.0 44640 8.8 44700 4.9 44760 0.2 44820 -1.9 44880 -1.1 44940 -4.3 45000 -4.6 45060 -2.9 45120 -0.4 45180 -3.3 45240 -5.0 45300 -1.8 45360 99999.9 45420 99999.9 45480 99999.9 45540 99999.9 45600 99999.9 45660 99999.9 45720 99999.9 45780 4.9 45840 -1.2 45900 -3.2 45960 -2.3 46020 2.9 46080 3.1 46140 -3.3 46200 4.4 46260 0.3 46320 3.4 46380 1.5 46440 0.8 46500 1.1 46560 15.6 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 16.5 48420 11.8 48480 8.1 48540 7.6 48600 13.5 48660 9.3 48720 10.2 48780 10.1 48840 5.5 48900 10.1 48960 11.6 49020 12.3 49080 11.3 49140 10.3 49200 9.5 49260 11.3 49320 8.6 49380 14.0 49440 9.6 49500 99999.9 49560 99999.9 49620 99999.9 49680 99999.9 49740 99999.9 49800 99999.9 49860 20.3 49920 4.4 49980 4.1 50040 4.6 50100 6.7 50160 -1.4 50220 0.7 50280 -3.5 50340 -5.3 50400 -6.4 50460 99999.9 50520 99999.9 50580 99999.9 50640 99999.9 50700 99999.9 50760 99999.9 50820 -6.1 50880 -3.8 50940 -5.1 51000 -2.3 51060 -1.6 51120 -0.7 51180 -1.2 51240 0.2 51300 5.4 51360 2.2 51420 8.7 51480 99999.9 51540 99999.9 51600 99999.9 51660 99999.9 51720 99999.9 51780 12.3 51840 15.3 51900 18.0 51960 13.4 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 12.7 53280 9.0 53340 7.4 53400 12.3 53460 10.1 53520 12.4 53580 16.0 53640 8.0 53700 2.5 53760 7.1 53820 7.2 53880 9.7 53940 9.1 54000 5.8 54060 9.9 54120 9.3 54180 3.5 54240 7.5 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 11.3 55020 2.3 55080 8.0 55140 11.9 55200 5.4 55260 6.3 55320 9.7 55380 5.4 55440 10.8 55500 2.6 55560 3.9 55620 5.2 55680 4.6 55740 7.6 55800 4.5 55860 1.3 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 9.7 56460 13.6 56520 7.6 56580 12.8 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 6.7 57420 13.2 57480 9.1 57540 13.7 57600 3.9 57660 9.4 57720 17.0 57780 13.8 57840 11.0 57900 14.3 57960 7.9 58020 3.5 58080 8.3 58140 22.1 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 16.5 59640 15.1 59700 10.7 59760 15.6 59820 15.8 59880 6.6 59940 13.8 60000 4.8 60060 9.5 60120 7.1 60180 13.2 60240 8.5 60300 14.1 60360 10.5 60420 7.7 60480 10.5 60540 8.1 60600 4.0 60660 10.8 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 47.5 61260 66.8 61320 67.9 61380 70.9 61440 78.4 61500 99999.9 61560 99999.9 61620 99999.9 61680 99999.9 61740 99999.9 61800 99999.9 61860 83.7 61920 108.3 61980 167.2 62040 152.4 62100 203.8 62160 87.2 62220 102.4 62280 18.5 62340 16.6 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 29.7 63000 19.7 63060 17.4 63120 16.0 63180 19.5 63240 18.6 63300 18.6 63360 25.5 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