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 20 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) 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 142.3 61260 111.8 61320 114.6 61380 78.6 61440 131.8 61500 139.9 61560 89.9 61620 91.1 61680 174.2 61740 100.6 61800 111.0 61860 119.4 61920 86.0 61980 83.2 62040 88.8 62100 94.9 62160 87.4 62220 128.0 62280 96.7 62340 83.8 62400 66.1 62460 50.9 62520 52.5 62580 44.4 62640 55.4 62700 46.1 62760 53.0 62820 47.6 62880 41.7 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 99999.9 63540 99999.9 63600 71.3 63660 79.0 63720 106.8 63780 102.7 63840 90.6 63900 76.3 63960 78.9 64020 88.4 64080 96.5 64140 126.2 64200 117.1 64260 90.6 64320 93.4 64380 92.0 64440 108.3 64500 115.9 64560 114.7 64620 91.2 64680 95.3 64740 96.9 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 99999.9 65400 90.6 65460 79.3 65520 83.0 65580 78.2 65640 68.5 65700 82.2 65760 66.3 65820 79.8 65880 73.0 65940 78.8 66000 87.3 66060 70.9 66120 64.3 66180 90.1 66240 104.3 66300 85.7 66360 67.6 66420 85.1 66480 78.2 66540 74.1 66600 99999.9 66660 99999.9 66720 99999.9 66780 103.6 66840 81.6 66900 69.0 66960 45.6 67020 64.6 67080 64.1 67140 71.4 67200 78.9 67260 99999.9 67320 99999.9 67380 99999.9 67440 45.1 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 99999.9 68760 99999.9 68820 79.3 68880 83.5 68940 50.2 69000 60.6 69060 89.9 69120 68.3 69180 56.4 69240 58.5 69300 55.5 69360 56.1 69420 49.0 69480 43.7 69540 53.5 69600 71.6 69660 59.5 69720 55.9 69780 69.7 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 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 99999.9 71160 99999.9 71220 99999.9 71280 99999.9 71340 77.9 71400 69.7 71460 79.1 71520 70.5 71580 77.9 71640 73.2 71700 74.3 71760 62.9 71820 60.7 71880 84.5 71940 74.3 72000 71.6 72060 81.3 72120 91.0 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 99.0 73140 101.1 73200 106.9 73260 110.5 73320 99.0 73380 100.4 73440 100.1 73500 90.6 73560 97.0 73620 123.5 73680 89.7 73740 46.5 73800 37.8 73860 36.5 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 99999.9 74520 99999.9 74580 99999.9 74640 99999.9 74700 99999.9 74760 99999.9 74820 62.6 74880 53.4 74940 49.8 75000 51.2 75060 46.6 75120 47.9 75180 35.9 75240 51.2 75300 45.4 75360 62.3 75420 42.3 75480 50.3 75540 47.5 75600 58.2 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 32.6 76620 34.9 76680 29.0 76740 53.1 76800 51.9 76860 34.9 76920 49.4 76980 34.6 77040 36.7 77100 46.6 77160 99999.9 77220 99999.9 77280 99999.9 77340 48.6 77400 99999.9 77460 99999.9 77520 99999.9 77580 74.9 77640 99999.9 77700 99999.9 77760 99999.9 77820 99999.9 77880 99999.9 77940 99999.9 78000 99999.9 78060 99999.9 78120 99999.9 78180 99999.9 78240 99999.9 78300 99999.9 78360 99999.9 78420 99999.9 78480 99999.9 78540 99999.9 78600 99999.9 78660 99999.9 78720 78.0 78780 75.3 78840 81.1 78900 85.6 78960 87.0 79020 88.1 79080 77.4 79140 82.0 79200 81.9 79260 71.4 79320 72.0 79380 78.4 79440 72.1 79500 66.4 79560 99999.9 79620 99999.9 79680 99999.9 79740 99999.9 79800 84.2 79860 82.3 79920 91.4 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 99999.9 80640 99999.9 80700 99999.9 80760 99999.9 80820 99999.9 80880 99999.9 80940 130.4 81000 134.1 81060 142.4 81120 140.9 81180 145.8 81240 162.2 81300 153.5 81360 160.8 81420 151.4 81480 156.2 81540 158.4 81600 155.9 81660 152.3 81720 159.1 81780 169.2 81840 270.1 81900 432.5 81960 196.5 82020 191.5 82080 175.0 82140 181.0 82200 99999.9 82260 99999.9 82320 99999.9 82380 99999.9 82440 99999.9 82500 99999.9 82560 99999.9 82620 99999.9 82680 99999.9 82740 99999.9 82800 99999.9 82860 99999.9 82920 99999.9 82980 99999.9 83040 99999.9 83100 99999.9 83160 99999.9 83220 99999.9 83280 99999.9 83340 99999.9 83400 99999.9 83460 169.1 83520 167.1 83580 195.1 83640 219.5 83700 235.9 83760 234.0 83820 236.4 83880 242.3 83940 247.5 84000 256.9 84060 249.6 84120 253.2 84180 263.2 84240 265.9 84300 255.0 84360 255.1 84420 99999.9 84480 99999.9 84540 99999.9 84600 99999.9 84660 99999.9 84720 99999.9 84780 99999.9 84840 99999.9 84900 99999.9 84960 99999.9 85020 99999.9 85080 99999.9 85140 99999.9 85200 99999.9 85260 99999.9 85320 178.7 85380 186.0 85440 191.9 85500 203.5 85560 193.5 85620 188.3 85680 193.1 85740 199.4 85800 235.8 85860 167.7 85920 152.6 85980 149.8 86040 166.1 86100 162.4 86160 99999.9 86220 99999.9 86280 99999.9 86340 99999.9 86400 99999.9 86460 99999.9 86520 99999.9 86580 99999.9 86640 99999.9 86700 99999.9 86760 99999.9 86820 99999.9 86880 99999.9 86940 99999.9 87000 99999.9 87060 200.8 87120 205.9 87180 203.9 87240 191.6 87300 198.8 87360 216.2 87420 194.8 87480 206.1 87540 208.0 87600 207.3 87660 199.9 87720 192.2 87780 185.4 87840 199.9 87900 99999.9 87960 99999.9 88020 99999.9 88080 170.3 88140 99999.9 88200 99999.9 88260 99999.9 88320 99999.9 88380 99999.9 88440 99999.9 88500 99999.9 88560 99999.9 88620 99999.9 88680 99999.9 88740 99999.9 88800 99999.9 88860 99999.9 88920 99999.9 88980 99999.9 89040 99999.9 89100 99999.9 89160 160.4 89220 128.7 89280 134.1 89340 126.8 89400 136.8 89460 132.4 89520 135.2 89580 132.3 89640 172.9 89700 158.2 89760 185.0 89820 168.1 89880 175.9 89940 209.0 90000 99999.9 90060 99999.9 90120 99999.9 90180 99999.9 90240 99999.9 90300 99999.9 90360 99999.9 90420 99999.9 90480 99999.9 90540 99999.9 90600 99999.9 90660 99999.9 90720 99999.9 90780 99999.9 90840 99999.9 90900 149.5 90960 143.3 91020 120.3 91080 125.8 91140 118.6 91200 107.9 91260 124.4 91320 141.1 91380 158.1 91440 162.0 91500 159.6 91560 151.9 91620 159.0 91680 133.8 91740 99999.9 91800 99999.9 91860 99999.9 91920 99999.9 91980 99999.9 92040 99999.9 92100 99999.9 92160 99999.9 92220 99999.9 92280 99999.9 92340 99999.9 92400 99999.9 92460 99999.9 92520 99999.9 92580 99999.9 92640 99999.9 92700 99999.9 92760 99999.9 92820 176.2 92880 166.3 92940 426.9 93000 152.1 93060 141.6 93120 99999.9 93180 99999.9 93240 99999.9 93300 99999.9 93360 143.1 93420 140.3 93480 127.6 93540 136.3 93600 130.4 93660 201.0 93720 137.4 93780 115.7 93840 94.6 93900 86.2 93960 92.8 94020 106.5 94080 107.0 94140 100.1 94200 103.0 94260 109.3 94320 79.7 94380 284.2 94440 111.4 94500 116.7 94560 56.4 94620 64.8 94680 115.7 94740 84.9 94800 49.0 94860 48.0 94920 76.0 94980 56.6 95040 99999.9 95100 99999.9 95160 99999.9