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 03 12 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) 1740 99999.9 1800 99999.9 1860 99999.9 1920 99999.9 1980 99999.9 2040 99999.9 2100 99999.9 2160 99999.9 2220 99999.9 2280 99999.9 2340 41.3 2400 31.8 2460 25.8 2520 16.6 2580 15.1 2640 15.6 2700 11.4 2760 14.2 2820 13.1 2880 12.0 2940 5.0 3000 2.0 3060 10.2 3120 4.6 3180 12.8 3240 6.7 3300 8.0 3360 14.4 3420 13.6 3480 16.5 3540 12.5 3600 25.0 3660 14.4 3720 20.3 3780 27.6 3840 17.6 3900 6.6 3960 11.4 4020 6.8 4080 55.5 4140 62.3 4200 10.1 4260 7.9 4320 8.5 4380 7.4 4440 8.0 4500 8.3 4560 99999.9 4620 99999.9 4680 99999.9 4740 99999.9 4800 99999.9 4860 99999.9 4920 99999.9 4980 99999.9 5040 3.0 5100 6.7 5160 19.9 5220 3.1 5280 0.8 5340 6.3 5400 0.5 5460 -1.4 5520 -1.0 5580 3.1 5640 5.1 5700 1.4 5760 -0.7 5820 0.6 5880 -2.1 5940 7.7 6000 4.7 6060 0.3 6120 4.6 6180 -2.0 6240 6.4 6300 -1.6 6360 -3.7 6420 -9.3 6480 -0.4 6540 99999.9 6600 99999.9 6660 99999.9 6720 99999.9 6780 99999.9 6840 99999.9 6900 99999.9 6960 99999.9 7020 99999.9 7080 99999.9 7140 99999.9 7200 99999.9 7260 99999.9 7320 -8.1 7380 -6.5 7440 -0.5 7500 -8.7 7560 -4.5 7620 -1.2 7680 -7.3 7740 -4.6 7800 -6.3 7860 1.1 7920 2.7 7980 -2.9 8040 1.6 8100 13.6 8160 8.2 8220 99999.9 8280 99999.9 8340 99999.9 8400 99999.9 8460 99999.9 8520 99999.9 8580 4.7 8640 0.4 8700 -0.4 8760 3.9 8820 4.0 8880 -0.1 8940 4.5 9000 -0.0 9060 -1.6 9120 1.0 9180 0.6 9240 5.4 9300 2.0 9360 -0.7 9420 -2.8 9480 0.4 9540 -2.0 9600 3.8 9660 5.4 9720 -1.5 9780 1.6 9840 2.3 9900 5.7 9960 -2.0 10020 99999.9 10080 99999.9 10140 99999.9 10200 99999.9 10260 99999.9 10320 99999.9 10380 99999.9 10440 99999.9 10500 99999.9 10560 99999.9 10620 99999.9 10680 99999.9 10740 99999.9 10800 99999.9 10860 99999.9 10920 99999.9 10980 99999.9 11040 99999.9 11100 99999.9 11160 99999.9 11220 99999.9 11280 99999.9 11340 99999.9 11400 -3.3 11460 2.5 11520 -7.8 11580 -2.8 11640 -5.1 11700 -0.6 11760 -5.0 11820 -2.5 11880 2.9 11940 -0.2 12000 2.1 12060 -2.7 12120 -5.6 12180 2.2 12240 9.4 12300 1.2 12360 -0.8 12420 -2.9 12480 -4.0 12540 2.3 12600 0.0 12660 -3.4 12720 -1.5 12780 0.6 12840 99999.9 12900 99999.9 12960 99999.9 13020 99999.9 13080 99999.9 13140 99999.9 13200 -8.7 13260 -2.7 13320 -1.5 13380 -4.4 13440 0.7 13500 0.7 13560 -0.6 13620 -4.3 13680 -1.4 13740 -3.7 13800 -4.2 13860 2.2 13920 -4.1 13980 -0.6 14040 -5.0 14100 -1.4 14160 4.0 14220 -0.8 14280 1.4 14340 99999.9 14400 99999.9 14460 99999.9 14520 99999.9 14580 99999.9 14640 99999.9 14700 99999.9 14760 99999.9 14820 99999.9 14880 99999.9 14940 99999.9 15000 99999.9 15060 99999.9 15120 -3.5 15180 2.0 15240 2.3 15300 0.6 15360 7.4 15420 3.3 15480 3.5 15540 -1.8 15600 2.2 15660 2.9 15720 4.1 15780 3.9 15840 -4.1 15900 0.5 15960 -2.5 16020 99999.9 16080 99999.9 16140 99999.9 16200 99999.9 16260 99999.9 16320 99999.9 16380 -0.2 16440 6.4 16500 -4.0 16560 0.5 16620 -1.5 16680 0.8 16740 -0.6 16800 2.2 16860 1.4 16920 3.4 16980 1.1 17040 99999.9 17100 99999.9 17160 99999.9 17220 99999.9 17280 99999.9 17340 99999.9 17400 1.4 17460 -1.8 17520 -0.9 17580 0.0 17640 1.2 17700 -2.0 17760 1.2 17820 0.8 17880 -3.3 17940 -4.7 18000 0.3 18060 -0.0 18120 0.6 18180 -1.5 18240 -1.3 18300 3.7 18360 -3.0 18420 -3.6 18480 2.4 18540 -1.3 18600 0.6 18660 -3.2 18720 -2.6 18780 7.4 18840 9.0 18900 0.6 18960 -0.6 19020 -1.2 19080 0.1 19140 1.9 19200 99999.9 19260 99999.9 19320 99999.9 19380 99999.9 19440 99999.9 19500 99999.9 19560 -3.3 19620 0.0 19680 -3.8 19740 1.1 19800 -2.4 19860 -2.1 19920 3.5 19980 -0.5 20040 -1.8 20100 -1.4 20160 -0.2 20220 -3.3 20280 6.3 20340 -1.0 20400 4.9 20460 0.9 20520 -3.4 20580 2.2 20640 4.3 20700 3.1 20760 1.9 20820 -1.0 20880 0.7 20940 2.9 21000 99999.9 21060 99999.9 21120 99999.9 21180 99999.9 21240 99999.9 21300 99999.9 21360 99999.9 21420 99999.9 21480 99999.9 21540 99999.9 21600 99999.9 21660 99999.9 21720 99999.9 21780 99999.9 21840 99999.9 21900 99999.9 21960 99999.9 22020 99999.9 22080 99999.9 22140 -3.9 22200 -0.0 22260 -1.5 22320 12.2 22380 4.8 22440 -2.2 22500 2.0 22560 -1.3 22620 0.8 22680 4.4 22740 0.5 22800 5.7 22860 2.4 22920 9.8 22980 1.4 23040 2.5 23100 4.4 23160 -1.3 23220 5.8 23280 2.6 23340 -1.6 23400 12.2 23460 10.2 23520 5.5 23580 99999.9 23640 99999.9 23700 99999.9 23760 99999.9 23820 99999.9 23880 99999.9 23940 -1.7 24000 1.7 24060 -4.6 24120 -1.8 24180 -4.2 24240 9.2 24300 17.1 24360 10.2 24420 4.0 24480 5.9 24540 9.1 24600 99999.9 24660 99999.9 24720 99999.9 24780 99999.9 24840 99999.9 24900 99999.9 24960 -5.7 25020 -1.5 25080 6.6 25140 1.4 25200 99999.9 25260 99999.9 25320 99999.9 25380 99999.9 25440 99999.9 25500 99999.9 25560 99999.9 25620 99999.9 25680 99999.9 25740 99999.9 25800 99999.9 25860 99999.9 25920 99999.9 25980 -2.1 26040 -1.0 26100 12.4 26160 1.4 26220 3.2 26280 8.5 26340 2.5 26400 7.1 26460 3.0 26520 5.8 26580 3.7 26640 4.9 26700 -0.2 26760 4.0 26820 5.0 26880 3.2 26940 2.8 27000 1.6 27060 -0.8 27120 7.5 27180 5.9 27240 4.9 27300 6.5 27360 2.2 27420 99999.9 27480 99999.9 27540 99999.9 27600 99999.9 27660 99999.9 27720 99999.9 27780 -5.2 27840 1.5 27900 4.7 27960 -0.0 28020 4.0 28080 6.7 28140 0.8 28200 -0.0 28260 6.8 28320 4.6 28380 0.6 28440 4.2 28500 1.7 28560 0.8 28620 11.4 28680 8.6 28740 6.8 28800 -0.0 28860 6.9 28920 1.6 28980 11.4 29040 2.4 29100 1.3 29160 -5.2 29220 99999.9 29280 99999.9 29340 99999.9 29400 99999.9 29460 99999.9 29520 99999.9 29580 99999.9 29640 99999.9 29700 99999.9 29760 99999.9 29820 99999.9 29880 99999.9 29940 99999.9 30000 99999.9 30060 99999.9 30120 99999.9 30180 99999.9 30240 99999.9 30300 5.4 30360 2.9 30420 9.0 30480 8.0 30540 6.7 30600 8.8 30660 12.8 30720 9.9 30780 4.8 30840 8.7 30900 9.3 30960 99999.9 31020 99999.9 31080 99999.9 31140 99999.9 31200 99999.9 31260 99999.9 31320 99999.9 31380 99999.9 31440 99999.9 31500 99999.9 31560 99999.9 31620 99999.9 31680 99999.9 31740 7.5 31800 0.7 31860 5.0 31920 5.8 31980 99999.9 32040 99999.9 32100 99999.9 32160 99999.9 32220 99999.9 32280 99999.9 32340 9.7 32400 5.7 32460 10.6 32520 7.6 32580 16.1 32640 15.7 32700 13.4 32760 12.7 32820 11.9 32880 14.4 32940 14.4 33000 13.1 33060 26.1 33120 51.7 33180 28.0 33240 31.3 33300 19.9 33360 20.9 33420 19.3 33480 29.6 33540 17.4 33600 13.7 33660 14.0 33720 9.4 33780 11.7 33840 99999.9 33900 99999.9 33960 99999.9 34020 99999.9 34080 99999.9 34140 99999.9 34200 7.9 34260 4.1 34320 6.8 34380 6.8 34440 9.9 34500 10.3 34560 16.3 34620 24.3 34680 23.1 34740 99999.9 34800 99999.9 34860 99999.9 34920 99999.9 34980 99999.9 35040 99999.9 35100 18.0 35160 15.5 35220 14.0