49 1001 Howell, S University of Hawaii Manoa Non-refractory aerosol composition from the Aerodyne AMS on the P-3B ARCTAS 1 1 2008 04 13 2010 12 31 0 Start_UTC, seconds, seconds from 0000 UTC 6 1 1 1 1 1 1 -9999 -9999 -9999 -9999 -9999 -9999 Stop_UTC, seconds, seconds from 0000 UTC Mid_UTC, seconds, seconds from 0000 UTC NO3, micrograms per standard meter cubed, Aerosol nitrate plus organic nitrate fragmants SO4, micrograms per standard meter cubed, Aerosol sulfate NH4, micrograms per standard meter cubed, Aerosol ammonium Org, micrograms per standard meter cubed, Aerosol non-refractory organic material 0 29 PI_CONTACT_INFO: email: sghowell@hawaii.edu; phone: 808-956-5185; address: Univ. Hawaii Dep't Ocean, 1000 Pope Rd, Honolulu, HI 96822 PLATFORM: NASA P-3B, using a solid diffuser inlet on the port side outside the front cabin LOCATION: Contained in aircraft data files. ASSOCIATED_DATA: N/A INSTRUMENT_INFO: Aerodyne aerosol mass spectrometer operating in V-mode, with heater near 600 C. This is bulk composition only (no size distributions). DATA_INFO: Units are micrograms per standard cubic meter (101325 Pa, 273 K). Particle sizes 50 to 500 nm vacuum aerodynamic diameter. UNCERTAINTY: 40% for accuracy, precision is much better, around 10% (2 sigma). To that add the detection limits 0.05, 0.05, 0.10, and 0.15. Values below detection limit are retained so averages work. ULOD_FLAG: -7777 ULOD_VALUE: N/A LLOD_FLAG: -8888 LLOD_VALUE: N/A DM_CONTACT_INFO: N/A PROJECT_INFO: ARCTAS Spring deployment, 31 March to 19 April 2008, http://www-air.larc.nasa.gov/missions/arctas/arctas.html STIPULATIONS_ON_USE: Ask investigator before publication for any further caveats. OTHER_COMMENTS: N/A REVISION: R1 R1: Transmission efficiency adjusted so per-flight median agrees with estimated volatile mass from OPC. Fragmentation table updated so masses during filter are near 0. Now averaged over 60 second periods to match 60s merge times. Higher time resolutions are available by request. Absolute amount has changed considerably from R0 but species ratios are nearly unchanged. R0: Not all calibration corrections are complete: Ionization efficiency is close, but transmission efficiency needs more work. Used a collection effeciency (CE) of max(0.5,(2-R)/2) where R is the mole ratio of NH4 to SO4. CE was smoothed with a 5 point box filter (about 1 minute). As there was no independent aerosol chemistry measurement, the CE will continue to have significant uncertainty, so it may be best to look at chemical ratios rather than absolute amount. Exact sampling times are not known exactly; recorded times are the end of sampling periods, but the mass spec open mode is 1 of 3 modes being used and the time of each mode is not recorded, so actual sample times may be a few seconds earlier than indicated. No allowances made for sampling delay due to inlet tubing length. Interference between air and NH4 peaks make quantifying the latter quite noisy; this will be improved in a later submission. There is a negative artifact in the organic signal at startup that decays over an hour or so; this will also be improved later. Start_UTC Stop_UTC Mid_UTC NO3 SO4 NH4 Org 69990 70050 70020 -9999 -9999 -9999 -9999 70050 70110 70080 -9999 -9999 -9999 -9999 70110 70170 70140 -9999 -9999 -9999 -9999 70170 70230 70200 -9999 -9999 -9999 -9999 70230 70290 70260 -9999 -9999 -9999 -9999 70290 70350 70320 -9999 -9999 -9999 -9999 70350 70410 70380 -9999 -9999 -9999 -9999 70410 70470 70440 -9999 -9999 -9999 -9999 70470 70530 70500 -9999 -9999 -9999 -9999 70530 70590 70560 -9999 -9999 -9999 -9999 70590 70650 70620 -9999 -9999 -9999 -9999 70650 70710 70680 -9999 -9999 -9999 -9999 70710 70770 70740 -9999 -9999 -9999 -9999 70770 70830 70800 -9999 -9999 -9999 -9999 70830 70890 70860 -9999 -9999 -9999 -9999 70890 70950 70920 -9999 -9999 -9999 -9999 70950 71010 70980 -9999 -9999 -9999 -9999 71010 71070 71040 -9999 -9999 -9999 -9999 71070 71130 71100 -9999 -9999 -9999 -9999 71130 71190 71160 -9999 -9999 -9999 -9999 71190 71250 71220 -9999 -9999 -9999 -9999 71250 71310 71280 -9999 -9999 -9999 -9999 71310 71370 71340 -9999 -9999 -9999 -9999 71370 71430 71400 -9999 -9999 -9999 -9999 71430 71490 71460 -9999 -9999 -9999 -9999 71490 71550 71520 -9999 -9999 -9999 -9999 71550 71610 71580 -9999 -9999 -9999 -9999 71610 71670 71640 -9999 -9999 -9999 -9999 71670 71730 71700 -9999 -9999 -9999 -9999 71730 71790 71760 -9999 -9999 -9999 -9999 71790 71850 71820 -9999 -9999 -9999 -9999 71850 71910 71880 -9999 -9999 -9999 -9999 71910 71970 71940 -9999 -9999 -9999 -9999 71970 72030 72000 -9999 -9999 -9999 -9999 72030 72090 72060 -9999 -9999 -9999 -9999 72090 72150 72120 -9999 -9999 -9999 -9999 72150 72210 72180 -9999 -9999 -9999 -9999 72210 72270 72240 -9999 -9999 -9999 -9999 72270 72330 72300 -9999 -9999 -9999 -9999 72330 72390 72360 -9999 -9999 -9999 -9999 72390 72450 72420 -9999 -9999 -9999 -9999 72450 72510 72480 0.02 0.23 -0.08 0.13 72510 72570 72540 0.01 0.74 0.20 0.04 72570 72630 72600 0.03 1.19 0.30 0.12 72630 72690 72660 -0.00 1.21 0.17 0.04 72690 72750 72720 0.02 1.73 0.17 -0.03 72750 72810 72780 0.03 2.42 0.26 0.39 72810 72870 72840 0.03 2.68 0.28 0.44 72870 72930 72900 0.03 2.07 0.30 0.59 72930 72990 72960 0.02 2.28 0.31 0.46 72990 73050 73020 0.02 2.14 0.31 0.68 73050 73110 73080 0.04 2.17 0.35 0.47 73110 73170 73140 0.00 1.25 0.20 0.30 73170 73230 73200 0.01 1.28 0.21 0.11 73230 73290 73260 0.04 2.09 0.24 0.06 73290 73350 73320 0.01 2.09 0.20 0.21 73350 73410 73380 0.07 1.75 0.27 0.69 73410 73470 73440 0.19 0.82 0.25 1.45 73470 73530 73500 0.32 0.93 0.31 3.51 73530 73590 73560 0.51 1.04 0.55 5.38 73590 73650 73620 0.22 1.48 0.39 2.92 73650 73710 73680 0.12 1.49 0.29 1.77 73710 73770 73740 0.17 1.76 0.37 2.69 73770 73830 73800 0.16 1.82 0.37 2.16 73830 73890 73860 0.03 1.17 0.18 0.76 73890 73950 73920 0.02 1.31 0.24 0.72 73950 74010 73980 0.09 2.30 0.64 2.39 74010 74070 74040 0.08 1.84 0.48 2.49 74070 74130 74100 0.08 1.62 0.48 2.43 74130 74190 74160 0.01 0.98 0.22 0.87 74190 74250 74220 0.01 0.67 0.12 0.10 74250 74310 74280 0.03 0.71 0.11 -0.03 74310 74370 74340 0.02 0.79 0.11 0.27 74370 74430 74400 0.03 0.79 0.10 0.20 74430 74490 74460 0.01 0.87 0.12 0.22 74490 74550 74520 0.04 0.78 0.16 0.16 74550 74610 74580 0.02 0.85 0.14 0.14 74610 74670 74640 0.01 0.82 0.10 0.19 74670 74730 74700 0.01 0.92 0.13 0.22 74730 74790 74760 0.02 1.02 0.15 0.19 74790 74850 74820 0.02 0.82 0.12 0.25 74850 74910 74880 0.00 0.75 0.09 0.31 74910 74970 74940 0.02 0.81 0.12 0.23 74970 75030 75000 0.02 0.76 0.09 0.25 75030 75090 75060 0.01 0.72 0.12 0.22 75090 75150 75120 0.02 0.72 0.08 0.27 75150 75210 75180 0.02 0.79 0.08 0.24 75210 75270 75240 0.02 0.77 0.07 0.34 75270 75330 75300 0.03 0.78 0.11 0.34 75330 75390 75360 0.02 0.84 0.08 0.36 75390 75450 75420 0.01 0.83 0.14 0.29 75450 75510 75480 0.01 0.79 0.08 0.26 75510 75570 75540 0.01 0.74 0.06 0.35 75570 75630 75600 0.01 0.74 0.06 0.27 75630 75690 75660 0.01 0.75 0.06 0.25 75690 75750 75720 0.01 0.74 0.07 0.20 75750 75810 75780 0.02 0.72 0.09 0.26 75810 75870 75840 0.02 0.84 0.09 0.40 75870 75930 75900 0.01 0.70 0.08 0.22 75930 75990 75960 0.01 0.72 0.07 0.32 75990 76050 76020 0.00 0.68 0.07 0.24 76050 76110 76080 0.01 0.78 0.12 0.24 76110 76170 76140 0.03 0.75 0.08 0.34 76170 76230 76200 0.02 0.93 0.11 0.38 76230 76290 76260 0.01 1.00 0.15 0.35 76290 76350 76320 0.02 0.84 0.08 0.31 76350 76410 76380 0.01 0.77 0.07 0.31 76410 76470 76440 0.02 0.78 0.08 0.23 76470 76530 76500 0.03 0.78 0.08 0.32 76530 76590 76560 0.01 0.64 0.07 0.26 76590 76650 76620 0.02 0.79 0.10 0.58 76650 76710 76680 0.04 1.05 0.24 1.36 76710 76770 76740 0.05 1.39 0.28 1.61 76770 76830 76800 0.04 1.28 0.26 1.41 76830 76890 76860 0.07 1.31 0.24 1.37 76890 76950 76920 0.03 0.96 0.18 0.92 76950 77010 76980 0.01 0.74 0.11 0.54 77010 77070 77040 0.02 0.69 0.07 0.45 77070 77130 77100 0.01 0.71 0.09 0.51 77130 77190 77160 0.02 0.76 0.14 0.47 77190 77250 77220 0.02 0.86 0.13 0.80 77250 77310 77280 0.03 1.01 0.16 0.94 77310 77370 77340 0.04 1.27 0.27 1.43 77370 77430 77400 0.06 1.78 0.37 1.88 77430 77490 77460 0.03 0.82 0.12 0.47 77490 77550 77520 0.02 0.77 0.12 0.55 77550 77610 77580 0.07 1.33 0.20 1.81 77610 77670 77640 0.15 1.91 0.34 3.68 77670 77730 77700 0.14 2.08 0.41 3.93 77730 77790 77760 0.12 2.19 0.38 3.98 77790 77850 77820 0.11 2.22 0.43 4.03 77850 77910 77880 0.12 2.10 0.38 3.87 77910 77970 77940 0.13 2.32 0.39 4.05 77970 78030 78000 0.11 2.41 0.44 3.83 78030 78090 78060 0.11 2.30 0.37 3.55 78090 78150 78120 0.10 2.30 0.42 3.64 78150 78210 78180 0.11 2.29 0.34 3.41 78210 78270 78240 0.08 2.12 0.33 3.03 78270 78330 78300 0.07 1.65 0.22 1.91 78330 78390 78360 0.07 1.88 0.32 2.24 78390 78450 78420 0.08 2.10 0.29 2.52 78450 78510 78480 0.05 1.62 0.24 1.73 78510 78570 78540 0.06 1.96 0.30 2.07 78570 78630 78600 0.05 1.89 0.29 2.24 78630 78690 78660 0.07 2.21 0.34 2.66 78690 78750 78720 0.08 2.13 0.35 2.48 78750 78810 78780 0.07 2.21 0.39 2.30 78810 78870 78840 0.06 2.02 0.32 2.17 78870 78930 78900 0.04 2.07 0.28 0.94 78930 78990 78960 0.02 0.88 0.05 0.16 78990 79050 79020 0.07 0.78 0.19 0.87 79050 79110 79080 0.10 0.88 0.18 1.25 79110 79170 79140 0.06 0.66 0.18 0.82 79170 79230 79200 0.08 0.74 0.21 0.58 79230 79290 79260 0.05 0.82 0.21 0.38 79290 79350 79320 0.07 0.72 0.14 0.25 79350 79410 79380 0.12 0.83 0.03 0.89 79410 79470 79440 0.04 0.40 0.16 0.23 79470 79530 79500 0.06 0.35 0.16 0.22 79530 79590 79560 0.05 0.44 0.12 0.14 79590 79650 79620 0.04 1.58 0.32 0.48 79650 79710 79680 0.02 0.31 0.09 0.12 79710 79770 79740 0.01 0.37 0.19 0.13 79770 79830 79800 0.02 0.47 0.16 0.18 79830 79890 79860 0.03 0.43 0.13 0.12 79890 79950 79920 0.01 0.40 0.15 0.22 79950 80010 79980 0.04 0.38 0.12 0.06 80010 80070 80040 0.02 0.36 0.08 0.04 80070 80130 80100 0.02 0.47 0.12 0.08 80130 80190 80160 0.03 0.37 0.16 0.05 80190 80250 80220 0.01 0.37 0.12 0.22 80250 80310 80280 0.02 0.31 0.14 0.08 80310 80370 80340 0.00 0.34 0.18 0.14 80370 80430 80400 -0.01 0.25 0.06 -0.08 80430 80490 80460 -0.00 0.02 0.05 -0.02 80490 80550 80520 0.00 0.28 0.09 -0.05 80550 80610 80580 0.07 2.10 0.42 0.75 80610 80670 80640 0.05 1.45 0.32 0.54 80670 80730 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0.02 0.44 0.11 0.35 82290 82350 82320 0.02 0.62 0.15 0.43 82350 82410 82380 0.02 0.59 0.17 0.30 82410 82470 82440 0.02 0.60 0.19 0.20 82470 82530 82500 -0.00 0.62 0.16 0.30 82530 82590 82560 0.01 0.84 0.23 0.35 82590 82650 82620 0.02 0.88 0.25 0.41 82650 82710 82680 0.01 0.74 0.17 0.44 82710 82770 82740 0.01 0.60 0.16 0.24 82770 82830 82800 0.02 0.39 0.14 0.11 82830 82890 82860 0.01 0.41 0.16 -0.15 82890 82950 82920 0.00 0.47 0.14 0.14 82950 83010 82980 0.00 0.38 0.11 0.20 83010 83070 83040 0.01 0.27 0.14 -0.01 83070 83130 83100 0.02 0.55 0.15 0.21 83130 83190 83160 0.01 0.47 0.13 0.20 83190 83250 83220 0.01 0.50 0.17 0.36 83250 83310 83280 0.02 0.59 0.13 0.25 83310 83370 83340 -0.01 0.46 0.09 0.28 83370 83430 83400 0.01 0.40 0.14 0.20 83430 83490 83460 0.02 0.28 0.12 0.09 83490 83550 83520 -0.00 -0.00 -0.01 -0.09 83550 83610 83580 0.00 0.03 0.03 -0.09 83610 83670 83640 0.02 0.02 0.05 -0.03 83670 83730 83700 -0.00 0.03 0.01 -0.09 83730 83790 83760 -0.00 0.01 0.08 -0.04 83790 83850 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