24 header lines, including this one. 890131 890131 Data collection date, analysis version Exchange data from NCAR Fourier Transform Infrared Spectrometer on the DC-8 (AASE mission). M.T. Coffey and William Mankin, PI's. This diskette contains the preliminary analysis of the spectra from the AASE mission. The individual spectra are averaged in groups of ten, recorded sequentially. The table gives the date, time, location, and retrieved column amount for the species for which we have real time analysis. For those species for which we use two or more independent analyses based on different spectral lines, we provide the percent error. This is only the statistical error (standard error of the mean, expressed as a percentage of the column); no systematic errors are included except for any systematic bias between the lines (as is the case for ozone). North latitudes and west longitudes are positive. The column is the integrated vertical column amount above the flight level, in molecules/cm2. Data on CH4 and N2O should be used with caution as the analysis program does not take proper account of the changing altitude of the aircraft in computing the synthetic spectra. The CH4 and N2O results are probably good for altitudes above 37,000 feet, but are progressively less accurate at lower altitudes. Molec. Date GMT Lat. Long. Altitude SZA Column Pct. Err. O3 890131 1123 68.7 1.4 41152. 86.6 6.25E+18 4.7 N2O 890131 1123 68.7 1.4 41152. 86.6 6.01E+17 1.7 HNO3 890131 1123 68.7 1.4 41152. 86.6 6.34E+15 12.3 HCL 890131 1125 68.6 1.8 41155. 86.5 8.99E+14 4.4 CH4 890131 1125 68.6 1.8 41155. 86.5 3.72E+18 0.1 HF 890131 1127 68.5 2.3 41138. 86.4 5.95E+14 NO2 890131 1130 68.4 3.1 41135. 86.3 3.02E+14 2.5 O3 890131 1132 68.4 3.4 41119. 86.3 5.86E+18 3.6 N2O 890131 1132 68.4 3.4 41119. 86.3 5.59E+17 0.2 HNO3 890131 1132 68.4 3.4 41119. 86.3 6.72E+15 13.0 HCL 890131 1133 68.3 3.8 41115. 86.2 1.07E+15 6.0 CH4 890131 1133 68.3 3.8 41115. 86.2 3.52E+18 1.5 HF 890131 1135 68.3 4.2 41132. 86.2 6.25E+14 NO2 890131 1139 68.2 5.1 41145. 86.1 3.00E+14 18.0 O3 890131 1140 68.1 5.5 41112. 86.0 6.24E+18 7.3 N2O 890131 1140 68.1 5.5 41112. 86.0 6.03E+17 2.6 HNO3 890131 1140 68.1 5.5 41112. 86.0 8.15E+15 2.1 HCL 890131 1142 68.1 5.9 41158. 86.0 1.01E+15 10.4 CH4 890131 1142 68.1 5.9 41158. 86.0 3.62E+18 2.9 HF 890131 1144 68.0 6.4 41112. 85.9 6.52E+14 NO2 890131 1148 67.9 7.2 41171. 85.8 3.12E+14 O3 890131 1149 67.9 7.5 41148. 85.8 6.25E+18 6.8 N2O 890131 1149 67.9 7.5 41148. 85.8 5.43E+17 0.1 HNO3 890131 1149 67.9 7.5 41148. 85.8 8.17E+15 7.6 O3 890131 1220 65.8 1.3 41115. 83.1 5.42E+18 5.6 N2O 890131 1220 65.8 1.3 41115. 83.1 5.76E+17 5.1 HNO3 890131 1220 65.8 1.3 41115. 83.1 1.12E+16 4.7 HCL 890131 1222 65.8 1.9 41161. 83.1 1.03E+15 22.7 CH4 890131 1222 65.8 1.9 41161. 83.1 3.62E+18 0.8 HF 890131 1224 65.8 2.4 41161. 83.1 6.75E+14 NO2 890131 1228 65.8 3.3 41132. 83.1 2.77E+14 O3 890131 1229 65.8 3.7 41161. 83.1 5.54E+18 5.9 N2O 890131 1229 65.8 3.7 41161. 83.1 5.92E+17 2.8 HNO3 890131 1229 65.8 3.7 41161. 83.1 1.32E+16 21.9 HCL 890131 1231 65.8 4.1 41125. 83.1 1.06E+15 8.3 CH4 890131 1231 65.8 4.1 41125. 83.1 3.90E+18 3.4 NO2 890131 1236 65.8 5.3 41135. 83.1 6.88E+14 14.8 O3 890131 1238 65.8 5.7 41145. 83.2 5.90E+18 6.9 N2O 890131 1238 65.8 5.7 41145. 83.2 5.50E+17 0.4 HNO3 890131 1238 65.8 5.7 41145. 83.2 8.47E+15 10.6 HCL 890131 1239 65.9 6.1 41142. 83.2 1.18E+15 3.0 CH4 890131 1239 65.9 6.1 41142. 83.2 3.93E+18 0.0 HF 890131 1241 65.9 6.5 41122. 83.2 4.23E+14 NO2 890131 1244 65.9 7.3 41132. 83.2 5.60E+14 28.9 O3 890131 1246 65.9 7.7 41132. 83.2 6.17E+18 2.2 N2O 890131 1246 65.9 7.7 41132. 83.2 5.53E+17 5.6 HNO3 890131 1246 65.9 7.7 41132. 83.2 1.28E+16 19.8