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 1 14 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 0 CH4 7 68908 408700 22 669 -1028 11439 17 70258 448600 22 668 -1094 11939 18 71637 475000 31 668 -1159 11949 19 72767 482500 16 667 -1209 11949 20 73576 451600 17 667 -1247 12560 19 75312 423700 52 669 -1327 12560 18 76582 411200 37 669 -1389 12569 17 CO2 6 69313 132000000 80 669 -1048 11949 18 71062 116900000 54 668 -1132 11949 19 72446 136500000 40 667 -1195 11949 19 73255 127400000 46 667 -1232 12560 20 74513 123600000 45 668 -1289 12560 19 75816 105800000 81 669 -1351 12560 18 ClONO2 1 70588 176 600 668 -1109 11949 18 H2O 7 68908 1323000 127 669 -1028 11439 17 70258 1583000 90 668 -1094 11939 18 71637 1599000 76 668 -1159 11949 19 72767 1647000 102 667 -1209 11949 20 73576 1618000 61 667 -1247 12560 19 75312 1453000 46 669 -1327 12560 18 76582 1410000 119 669 -1389 12569 17 HCl 7 68948 268 21 669 -1030 11539 17 70298 277 127 668 -1095 11949 18 71677 301 65 668 -1160 11949 19 72807 291 25 667 -1211 11949 20 73619 289 2 667 -1248 12550 19 75352 239 16 669 -1329 12569 18 76622 236 40 669 -1391 12569 17 HF 7 68844 86 999 669 -1025 11300 17 70115 106 999 669 -1087 11949 18 71570 92 999 668 -1155 11939 19 72708 97 999 667 -1206 11949 20 73514 88 999 667 -1243 12569 19 75243 64 999 669 -1323 12560 18 76514 69 999 669 -1386 12560 18 HNO3 15 68726 2020 999 669 -1019 11310 17 70408 1580 999 668 -1101 11949 18 70498 1550 999 668 -1105 11949 18 70588 1640 999 668 -1109 11949 19 70678 1730 999 668 -1113 11949 19 70768 1590 999 668 -1117 11939 19 71463 1690 999 668 -1150 11949 19 72595 1660 999 667 -1201 11949 20 73393 1490 999 667 -1238 12560 20 74700 1500 999 668 -1298 12560 19 74792 1530 999 668 -1302 12560 19 74882 1550 999 668 -1306 12560 19 74972 1540 999 668 -1310 12560 18 75062 1390 999 668 -1315 12560 18 76404 1540 999 669 -1380 12560 18 N2O 7 68687 72910 54 669 -1017 11310 17 70368 70490 71 668 -1099 11949 18 71423 73510 63 668 -1149 11949 19 72555 71810 42 667 -1200 11949 20 73353 74440 60 667 -1236 12560 20 74672 73340 47 668 -1297 12569 19 76364 68950 57 669 -1379 12560 18 NO 5 69197 169 84 669 -1042 11949 18 71915 136 366 668 -1171 11949 19 72948 142 353 667 -1217 11989 20 74408 163 56 668 -1284 12560 19 75707 148 290 669 -1346 12560 18 NO2 6 69059 32 176 669 -1036 11899 18 70875 36 146 668 -1123 11949 19 71778 37 254 668 -1165 11949 19 73090 40 285 667 -1224 12319 20 73724 44 105 667 -1253 12560 19 75469 40 91 669 -1334 12560 18 O3 12 68726 897700 999 669 -1019 11310 17 70408 754800 999 668 -1101 11949 18 70498 756700 999 668 -1105 11949 18 70588 764300 999 668 -1109 11949 19 70678 762500 999 668 -1113 11949 19 70768 769000 999 668 -1117 11939 19 74700 710200 999 668 -1298 12560 19 74792 704700 999 668 -1302 12560 19 74882 713300 999 668 -1306 12560 19 74972 706500 999 668 -1310 12560 18 75062 713800 999 668 -1315 12560 18 76404 696300 999 669 -1380 12560 18