63 2160 M. T. Coffey and W. G. Mankin National Center for Atmospheric Research FTIR measurements of total column amounts AASE II 1 1 1992 2 17 1993 7 25 0 6 Time (seconds past 0 UT) Molecule - chemical symbol of molecule reported 6 1.0E13 0.1 0.1 0.1 1.0 0.1 999999999 999 9999 9999 99999 999 Column amount of given molecule above flight alitude (molecules/cm2) Statistical precision (retrievals from different lines) in per cent Latitude (degrees) North positive Longitude (degrees) East positive Altitude of aircraft (meters) Elevation of sun (degrees) 1 0 1.0 999 Number of observations of this molecule on this date 0 36 Infrared spectroscopic observations were made as described in JGR, 94, 11413, 1989. Analyses were done with a variety of methods. For HCl, HF, NO, and NO2, an equivalent width method was used. For CF2Cl2, CH4, C2H6, H2O, N2O, and CO2, an interactive graphical technique for fitting observed and calculated spectra was used. For O3, ClONO2, and HNO3, the SFIT least squares fitting program (Rinsland) was used. Analyses were done by Coffey, Mankin, James Hannigan, and Aaron Goldman. -- Spectral regions used for the fits: CF2Cl2 921 - 923 cm-1 C2H6 2970 - 2995 cm-1 CH4 2920 - 2925, 2970 - 2995 cm-1 ClONO2 780.0 - 780.5 cm-1 CO2 2010 - 2030 cm-1 H2O 2970 - 2995 cm-1 HCl 2920 - 2950 cm-1 HF 4039 cm-1 HNO3 867-870 cm-1 N2O 1180 - 1194 cm-1 NO 1840 - 1920 cm-1 NO2 1600 - 1610 cm-1 O3 1141 - 1144 cm-1 -- For the source gases and ozone the profiles were from Smith, NASA TM 83289. In the arctic region, these profiles were lowered by 4 km. For the other gases, profiles were from JGR, 94, 16597, 1989. Line parameters were from the AFGL92 compilation with update of the chlorine nitrate and nitric acid lines from Aaron Goldman. -- The precision, where reported, is the standard deviation of retrievals made on a number of spectral features, except for ClONO2, where it is an estimate based on the residuals in the fit. -- For the source gases, the column reported is the integrated value above 200 mb for the scaled profile that best matches the observations; thus the effect on the column of changing aircraft altitude is removed. C2H6 0 CF2Cl2 7 49506 174 100 737 34 10729 26 50352 141 90 742 -20 10720 23 51630 162 100 751 -108 10720 18 52860 118 43 752 -199 10720 21 54846 131 59 759 -372 11329 19 55816 123 100 761 -465 11329 18 56620 128 100 761 -545 11319 19 CH4 8 49288 514500 38 735 48 10729 26 50234 524400 66 741 -12 10720 24 51108 500200 24 747 -71 10720 20 52733 468500 22 751 -188 10720 21 54724 422900 38 758 -360 11329 19 55698 454600 43 761 -454 11329 18 56338 452500 35 761 -518 11329 18 57027 411900 27 760 -585 11329 19 CO2 3 50462 146600000 50 743 -27 10720 23 54140 147100000 48 755 -307 11329 21 55446 137800000 62 761 -429 11329 18 ClONO2 2 53088 351 400 753 -217 10979 21 56750 850 200 760 -556 11329 19 H2O 8 49288 1415000 66 735 48 10729 26 50234 1468000 44 741 -12 10720 24 51108 1352000 40 747 -71 10720 20 52724 1342000 86 751 -187 10720 21 54724 1308000 63 758 -360 11329 19 55698 1432000 42 761 -454 11329 18 56338 1473000 48 761 -518 11329 18 57027 1342000 37 760 -585 11329 19 HCl 9 49328 260 77 736 46 10729 26 50274 301 92 741 -14 10720 24 51148 260 78 748 -73 10720 20 52764 278 112 751 -190 10729 21 54764 272 134 758 -363 11329 19 55738 307 0 761 -457 11329 18 56378 296 31 761 -521 11329 18 57027 306 22 760 -589 11329 19 57117 289 10 759 -598 11329 19 HF 8 49198 103 999 735 54 10720 27 50152 124 999 741 5 10720 23 51036 144 999 747 -65 10720 21 52568 263 999 750 -174 10720 22 54642 173 999 758 -352 11329 19 55626 237 999 761 -446 11329 18 56250 182 999 761 -508 11329 18 56964 192 999 760 -579 11329 19 HNO3 16 49546 1480 999 737 32 10729 26 50392 1560 999 742 -22 10720 23 51323 1820 999 749 -85 10720 20 51500 1590 999 750 -98 10720 19 51670 1880 999 752 -111 10720 18 51775 2030 999 752 -118 10720 18 52900 2330 999 752 -201 10720 21 52990 2580 999 752 -209 10729 21 53080 2560 999 753 -216 10930 21 53190 2910 999 753 -226 11189 21 53280 2720 999 753 -234 11310 21 54886 2630 999 759 -375 11329 19 55856 2810 999 761 -468 11329 18 56660 2960 999 760 -549 11329 19 56750 2960 999 760 -552 11329 19 56840 3050 999 760 -566 11329 19 N2O 7 49506 76860 52 737 34 10729 26 50352 71440 35 742 -20 10720 23 51630 69710 29 751 -108 10720 18 52860 66230 47 752 -199 10720 21 54846 60830 73 759 -372 11329 19 55825 61490 8 761 -465 11329 18 56620 61480 45 761 -545 11319 19 NO 3 49856 219 233 739 12 10720 25 53891 191 166 754 -284 11329 22 55332 160 101 761 -417 11329 18 NO2 4 49681 84 108 738 23 10720 26 53734 66 168 753 -271 11329 23 55183 55 111 760 -403 11329 18 56498 54 30 761 -533 11329 18 O3 16 49546 597300 999 737 32 10729 26 50392 577100 999 742 -22 10720 23 51323 597600 999 749 -85 10720 20 51500 580800 999 750 -98 10720 19 51670 580200 999 752 -111 10720 18 51775 583400 999 752 -118 10720 18 52900 695100 999 752 -201 10720 21 52990 738900 999 752 -209 10729 21 53080 750500 999 753 -216 10930 21 53190 769600 999 753 -226 11189 21 53280 786200 999 753 -234 11310 21 54886 818600 999 759 -375 11329 19 55856 799300 999 761 -468 11329 18 56660 872800 999 760 -549 11329 19 56750 845300 999 760 -552 11329 19 56840 887500 999 760 -566 11329 19