71 2110 FERRY, Guy, PUESCHEL, Rudi, and STRAWA, Tony NASA Ames Research Center Ames Wire Impactor (APS) SONEX 1 1 1997 10 23 1998 7 29 0. 0. {Irregular data intervals} Bin number Time at which module opened (UT sec) 6 {Number of primary variables} 1 1 .01 1 1 .01 {Scale factors} 999 999 999999 999 999 999999 {Missing values} Lower limit of sulfate bin (um diameter) Upper limit of sulfate bin (um diameter) Differential sulfate concentration in bin (# cm-3 um-1) Lower limit of soot bin (um diameter) Upper limit of soot bin (um diameter) Differential soot concentration in bin (# cm-3 um-1) 15 {Number of auxiliary variables} 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 {Scale factors for auxiliary variables} 99 999999 9999 9999 99999 9999 9999 99999 9999 9999 99999 9999 9999 99999 99 {Missing values} Number of size bins reported in subsequent data records Time at which module closed (UT sec) Total sulfate concentration (# cm-3) Total sulfate surface area (um2 cm-3) Total sulfate volume (um3 cm-3) Total soot concentration (# cm-3) Total soot surface area (um2 cm-3) Total soot volume (um3 cm-3) Uncertainty on total sulf. conc. (# cm-3) Uncertainty on total sulf. SA (um2 cm-3) Uncertainty on total sulf. vol. (um3 cm-3) Uncertainty on total soot conc. (# cm-3) Uncertainty on total soot SA (um2 cm-3) Uncertainty on total soot vol. (um3 cm-3) Conversion factor for sulfate aerosols 3 {Number of special comment lines} Data for time 25740 from ring AA-39: 75 um wire for sulf, 75 um wire for soot Data for time 32280 from ring AA-40: 75 um wire for sulf, 75 um wire for soot Data for time 43980 from ring AA-45: 500 um wire for sulf, 500 um wire for soot 29 {Number of normal comment lines} BRIEF DESCRIPTION OF DATA FORMAT: For each module, the first line provides the following information: opening time, number of size bins, closing time, sulf #, sulf SA, sulf vol, soot #, soot SA, soot vol The second line provides the statistical uncertainties: sulf # uncert, sulf SA uncert, sulf vol uncert, soot # uncert, soot SA uncert, soot vol uncert, conv. factor Subsequent lines provide the full size distribution, bin by bin. For each bin, the following data is provided: bin #, lower size (sulf), upper size (sulf), sulf # lower size (soot), upper size (soot), soot # MEANING OF "NUMBER OF SIZE BINS": 0: Data for this sample is available but has not yet been analyzed. 99: Data is not available. Otherwise, this is the number of size bins necessary to describe either the sulfate or soot distribution, whichever is larger. CONVERSION FACTOR FOR SULFATE AEROSOL: APS measures sulfate aerosol after all water has evaporated and after fixing the sulfate with ammonia, thus modifying the particle sizes. The aerosol conversion factor provides the assumed difference between measured diameters and original diameters, assuming particles are equilbrium H2SO4/H2O solutions. This factor has been incorporated in all provided sulfate data. Soot analysis now takes into account the fractal geometry of the particles If you are interested in a particular size distribution, please contact Guy Ferry (+650-604-5497, guy@aerosol.arc.nasa.gov). END OF HEADER 23700 0 23880 9999 9999 99999 9999 9999 99999 9999 9999 99999 9999 9999 99999 99.000 25740 11 25920 4.616 7.740e-1 4.790e-2 1.930e-1 3.730e-2 2.270e-4 0.259 0.883e-1 0.927e-2 0.770e-1 1.970e-2 1.200e-4 0.99 1 0.034 0.066 22.900 0.100 0.120 0.3940 2 0.066 0.130 16.500 0.120 0.160 0.7570 3 0.130 0.208 11.700 0.160 0.220 0.8700 4 0.208 0.248 15.500 0.220 0.300 0.4750 5 0.248 0.286 10.500 0.300 0.400 0.4780 6 0.286 0.324 8.460 0.400 0.540 0.1220 7 0.324 0.396 4.080 999 999 9999 8 0.396 0.512 1.330 999 999 9999 9 0.512 0.706 0.350 999 999 9999 10 0.706 0.806 0.222 999 999 9999 11 0.806 0.936 0.102 999 999 9999 29220 99 29400 9999 9999 99999 9999 9999 99999 9999 9999 99999 9999 9999 99999 99.000 30720 0 30900 9999 9999 99999 9999 9999 99999 9999 9999 99999 9999 9999 99999 99.000 32280 11 32460 3.994e+1 5.970e-1 1.640e-2 9.600e-2 2.370e-2 1.850e-4 0.141e+1 0.944e-1 0.752e-2 3.500e-2 1.350e-2 1.060e-4 0.99 1 0.018 0.034 837.00 0.100 0.120 0.1510 2 0.034 0.066 527.00 0.120 0.160 0.2230 3 0.066 0.106 123.00 0.160 0.220 0.4000 4 0.106 0.132 72.600 0.220 0.300 0.3130 5 0.132 0.166 37.100 0.300 0.400 0.2000 6 0.166 0.200 2.150 0.400 0.540 0.0774 7 0.200 0.266 3.070 0.540 0.740 0.0199 8 0.266 0.330 1.300 999 999 9999 9 0.330 0.436 0.196 999 999 9999 10 0.436 0.522 0.467 999 999 9999 11 0.522 0.624 0.393 999 999 9999 34740 0 34920 9999 9999 99999 9999 9999 99999 9999 9999 99999 9999 9999 99999 99.000 36360 0 36540 9999 9999 99999 9999 9999 99999 9999 9999 99999 9999 9999 99999 99.000 38940 0 39120 9999 9999 99999 9999 9999 99999 9999 9999 99999 9999 9999 99999 99.000 41820 0 42000 9999 9999 99999 9999 9999 99999 9999 9999 99999 9999 9999 99999 99.000 43980 14 44160 1.451e+1 1.240 8.640e-2 8.160e-1 2.600e-1 2.260e-3 0.028e+1 0.101 1.550e-2 3.440e-1 1.320e-1 1.140e-3 0.99 1 0.038 0.076 193.00 0.120 0.160 4.2000 2 0.076 0.150 49.100 0.160 0.220 4.7100 3 0.150 0.210 21.200 0.220 0.300 1.5100 4 0.210 0.246 25.600 0.300 0.400 0.2390 5 0.246 0.290 13.800 0.400 0.540 0.8530 6 0.290 0.334 6.440 0.540 0.740 0.3460 7 0.334 0.426 2.860 0.740 1.000 0.1220 8 0.426 0.524 0.583 999 999 9999 9 0.524 0.680 0.496 999 999 9999 10 0.680 0.808 0.317 999 999 9999 11 0.808 0.938 0.207 999 999 9999 12 0.938 1.044 0.172 999 999 9999 13 1.044 1.154 0.112 999 999 9999 14 1.154 1.312 0.046 999 999 9999