45, 1001
Brune, William; Thames, Alexander; Miller, David; Brosius, Alexandra
Penn State University
ATHOS - Airborne Tropospheric Hydrogen Oxides Sensor
ATom
1, 1
2018, 05, 18, 2019, 05, 24
0
Start_UTC, seconds, seconds since UTC midnight on day of takeoff
5
1, 1, 1, 1, 1
-9999.000, -9999.000, -9999.00, -9999.00, -9999.000
Stop_UTC, seconds, seconds since UTC midnight on day of takeoff
Mid_UTC, seconds, seconds since UTC midnight on day of takeoff
T_OHR, Kelvin, temperature inside OHR instrument in Kelvin
P_OHR, kPa, pressure inside OHR instrument in kPa
OHReactivity_OHR, Hz, OH reactivity in Hz
0
26
PI_CONTACT_INFO: Address: 503 Walker Building, University Park, PA 16802; email: whb2@psu.edu 814-865-3286
PLATFORM: NASA - DC-8 Aircraft - sampling underneath aircraft forward cargo bay
LOCATION: ATom IV: BONUS Flight #1 -- SFJ - BGR
ASSOCIATED_DATA: N/A
INSTRUMENT_INFO: OH Reactivity from discharge flow
DATA_INFO: Units are: Kelvin for T, kPa for P, Hz for OHR.
UNCERTAINTY: OHR measurement uncertainty +/- 15% at 2 sigma confidence, with +/- 0.8 s^-1 at 2 sigma confidence in the zero uncertainty.
ULOD_FLAG: -7777
ULOD_VALUE: N/A
LLOD_FLAG: -8888
LLOD_VALUE: N/A
DM_CONTACT_INFO: William H. Brune, Penn State, whb2@psu.edu; 814-865-3286
PROJECT_INFO: NSF/NASA ATom Mission. 2016 - 2018; Multiple Locations
STIPULATIONS_ON_USE: No restrictions. Contact PI or DM with any questions.
OTHER_COMMENTS: Final Data. OH reactivity signals from individual 20 or 30 second scans have been added together for 60 seconds.
- Summing these signals compensated for the signal decrease due to quenching in the humid air at lower altitudes.
- By increasing signal counts, the statistical noise in the calculated decays was reduced.
- Increasing the summation time to 120 seconds gave the same OH reactivity as the 60-second average to within 10%.
- OHR flow tube T and p are needed to convert ambient modeled OH reactivity so that it can be compared to measured OH reactivity.
- This conversion can double the modeled OH reactivity at cold, high altitudes, but has little effect at low altitudes.
- In ATom4, ~40% of the data were strongly affected by contamination in the zero air generator used in the OH source, which changed the OHR zero. These data were removed.
- For details, please see Mao et al., Atmos. Chem. Phys., 9, 163-173, 2009.
REVISION: R1
R1: Final Data (see OTHER_COMMENTS)
R0: Final Data (see OTHER_COMMENTS)
Start_UTC, Stop_UTC, Mid_UTC, T_OHR, P_OHR, OHReactivity_OHR
44624, 44683, 44654, 287.566, 86.089, -9999.000
44685, 44744, 44715, 286.878, 81.000, -9999.000
44745, 44804, 44775, 286.385, 72.189, -9999.000
44805, 44864, 44835, 285.852, 69.800, -9999.000
44865, 44924, 44895, 285.406, 67.356, -9999.000
44925, 44984, 44955, 285.238, 63.578, -9999.000
44985, 45044, 45015, 285.168, 56.744, -9999.000
45045, 45104, 45075, 284.979, 52.156, -9999.000
45105, 45164, 45135, 284.701, 48.400, -9999.000
45165, 45224, 45195, 284.362, 47.433, -9999.000
45225, 45284, 45255, 283.872, 46.422, -9999.000
45285, 45344, 45315, 283.471, 44.789, -9999.000
45345, 45404, 45375, 283.340, 43.233, -9999.000
45405, 45464, 45435, 283.139, 41.067, -9999.000
45465, 45524, 45495, 283.069, 39.111, -9999.000
45525, 45584, 45555, 282.978, 37.933, -9999.000
45586, 45645, 45616, 283.018, 36.722, -9999.000
45646, 45705, 45676, 283.079, 34.422, -9999.000
45706, 45765, 45736, 283.079, 34.522, -9999.000
45766, 45825, 45796, 282.978, 34.289, -9999.000
45826, 45885, 45856, 282.918, 34.489, -9999.000
45886, 45945, 45916, 282.796, 34.589, -9999.000
45946, 46005, 45976, 282.756, 34.622, -9999.000
46006, 46065, 46036, 282.685, 34.367, -9999.000
46066, 46125, 46096, 282.796, 32.733, -9999.000
46126, 46185, 46156, 282.847, 31.989, -9999.000
46186, 46245, 46216, 282.918, 31.400, -9999.000
46246, 46305, 46276, 282.938, 30.389, -9999.000
46306, 46365, 46336, 283.099, 28.444, -9999.000
46366, 46425, 46396, 283.280, 27.533, -9999.000
46427, 46486, 46457, 283.361, 27.500, -9999.000
46487, 46546, 46517, 283.340, 27.478, -9999.000
46547, 46606, 46577, 283.411, 27.556, -9999.000
46607, 46666, 46637, 283.401, 27.433, -9999.000
46667, 46726, 46697, 283.381, 27.556, -9999.000
46727, 46786, 46757, 283.371, 27.467, -9999.000
46965, 47024, 46995, 283.179, 27.456, -9999.000
47025, 47084, 47055, 283.139, 27.444, -9999.000
47085, 47144, 47115, 283.099, 27.400, -9999.000
47145, 47204, 47175, 283.018, 27.333, -9999.000
47205, 47264, 47235, 283.018, 27.511, -9999.000
47265, 47324, 47295, 283.018, 27.467, -9999.000
47325, 47384, 47355, 282.978, 27.422, -9999.000
47385, 47444, 47415, 282.978, 27.322, -9999.000
47445, 47504, 47475, 282.978, 27.444, -9999.000
47505, 47564, 47535, 282.907, 27.556, -0.193
47565, 47624, 47595, 282.877, 27.500, 0.496
47625, 47684, 47655, 282.857, 27.489, 0.017
47686, 47745, 47716, 282.857, 27.444, -0.149
47746, 47805, 47776, 282.857, 27.478, -9999.000
47806, 47865, 47836, 282.817, 27.378, 0.700
47866, 47925, 47896, 282.756, 27.467, -0.181
47926, 47985, 47956, 282.696, 27.467, 0.268
47986, 48045, 48016, 282.726, 27.533, 0.623
48046, 48105, 48076, 282.675, 27.533, 0.202
48106, 48165, 48136, 282.594, 27.600, 0.188
48166, 48225, 48196, 282.514, 27.511, 0.320
48226, 48285, 48256, 282.493, 27.500, 0.567
48286, 48345, 48316, 282.463, 27.600, 0.285
48346, 48405, 48376, 282.473, 27.511, 0.307
48407, 48466, 48437, 282.473, 27.533, 0.944
48467, 48526, 48497, 282.463, 27.456, 0.450
48527, 48586, 48557, 282.412, 27.633, 1.571
48587, 48646, 48617, 282.362, 27.500, 0.722
48647, 48706, 48677, 282.362, 27.522, 0.905
48707, 48766, 48737, 282.331, 27.467, 0.599
48767, 48826, 48797, 282.402, 27.444, 0.613
48827, 48886, 48857, 282.270, 27.344, 0.481
48887, 48946, 48917, 282.260, 27.400, 0.692
48948, 49007, 48978, 282.291, 27.311, 0.694
49008, 49067, 49038, 282.250, 27.311, 0.542
49068, 49127, 49098, 282.210, 27.411, 0.672
49128, 49187, 49158, 282.169, 27.400, 0.228
49188, 49247, 49218, 282.128, 27.411, 1.197
49248, 49307, 49278, 282.088, 27.456, 0.787
49308, 49367, 49338, 282.047, 27.456, -9999.000
49368, 49427, 49398, 282.007, 27.322, 0.768
49428, 49487, 49458, 281.946, 27.367, 0.429
49488, 49547, 49518, 281.803, 27.444, 0.344
49548, 49607, 49578, 281.854, 27.444, 0.642
49608, 49667, 49638, 281.823, 27.322, 1.080
49668, 49727, 49698, 281.742, 27.400, 0.604
49728, 49787, 49758, 281.538, 27.522, -9999.000
49789, 49848, 49819, 281.599, 27.556, 0.123
49849, 49908, 49879, 281.416, 27.756, -9999.000
49909, 49968, 49939, 281.293, 27.689, 1.469
49969, 50028, 49999, 281.293, 27.489, 0.635
50029, 50088, 50059, 281.272, 27.133, 0.630
50089, 50148, 50119, 281.354, 26.078, -9999.000
50149, 50208, 50179, 281.456, 25.311, 0.217
50209, 50268, 50239, 281.610, 24.867, -9999.000
50269, 50328, 50299, 281.599, 24.967, 1.044
50329, 50388, 50359, 281.548, 24.911, -0.100
50389, 50448, 50419, 281.518, 24.967, -9999.000
50450, 50509, 50480, 281.477, 25.000, 0.007
50510, 50569, 50540, 281.487, 25.011, 0.109
50570, 50629, 50600, 281.477, 24.933, 0.570
50630, 50689, 50660, 281.477, 25.067, 0.685
50690, 50749, 50720, 281.467, 25.044, -9999.000
50750, 50809, 50780, 281.416, 24.967, -9999.000
50810, 50869, 50840, 281.416, 25.000, -0.300
50870, 50929, 50900, 281.375, 25.011, -9999.000
50930, 50989, 50960, 281.395, 24.978, 1.158
50990, 51049, 51020, 281.354, 24.967, -0.325
51050, 51109, 51080, 281.313, 25.000, -0.016
51110, 51169, 51140, 281.293, 25.011, 0.028
51170, 51229, 51200, 281.272, 25.033, 0.962
51231, 51290, 51261, 281.313, 25.011, -0.046
51291, 51350, 51321, 281.344, 24.967, 0.693
51351, 51410, 51381, 281.416, 24.978, -9999.000
51411, 51470, 51441, 282.240, 25.144, -9999.000
51471, 51530, 51501, 283.240, 25.178, -9999.000
51531, 51590, 51561, 283.642, 25.156, -9999.000
51591, 51650, 51621, 283.431, 24.933, 0.377
51651, 51710, 51681, 282.635, 25.056, 0.653
51711, 51770, 51741, 282.554, 25.078, -0.131
51771, 51830, 51801, 282.372, 25.089, -0.028
51831, 51890, 51861, 282.270, 25.033, -9999.000
51892, 51951, 51922, 282.149, 25.111, -9999.000
51951, 52010, 51981, 282.057, 25.100, -9999.000
52012, 52071, 52042, 281.986, 24.956, 0.357
52240, 52299, 52270, 281.742, 25.078, -0.199
52300, 52359, 52330, 281.681, 25.033, -9999.000
52360, 52419, 52390, 281.620, 25.067, 0.577
52420, 52479, 52450, 281.559, 25.122, -9999.000
52480, 52539, 52510, 281.548, 24.933, -9999.000
52540, 52599, 52570, 281.518, 25.000, -0.216
52600, 52659, 52630, 281.456, 25.089, 0.431
52660, 52719, 52690, 281.436, 24.989, 0.393
52720, 52779, 52750, 281.375, 25.044, -9999.000
52780, 52839, 52810, 281.334, 25.133, 0.315
52841, 52900, 52871, 281.293, 25.044, 0.031
52901, 52960, 52931, 281.283, 25.044, -9999.000
52961, 53020, 52991, 281.293, 25.044, -0.294
53021, 53080, 53051, 281.221, 25.100, 0.464
53081, 53140, 53111, 281.150, 25.044, 0.367
53141, 53200, 53171, 281.129, 24.978, 0.049
53201, 53260, 53231, 281.088, 25.022, -0.247
53261, 53320, 53291, 281.006, 25.033, 0.473
53321, 53380, 53351, 280.965, 24.989, -9999.000
53382, 53441, 53412, 280.945, 24.989, 0.996
53442, 53501, 53472, 280.924, 25.011, -0.104
53502, 53561, 53532, 280.842, 25.022, -0.047
53562, 53621, 53592, 280.801, 24.944, 0.011
53622, 53681, 53652, 280.698, 25.056, -0.328
53682, 53741, 53712, 280.677, 25.044, 0.236
53742, 53801, 53772, 280.595, 24.900, 0.017
53802, 53861, 53832, 280.554, 24.922, -0.118
53862, 53921, 53892, 280.471, 24.933, -9999.000
53922, 53981, 53952, 280.389, 25.000, -0.271
53982, 54041, 54012, 280.327, 25.089, -9999.000
54042, 54101, 54072, 280.348, 25.067, 0.852
54103, 54162, 54133, 280.275, 24.911, 0.198
54163, 54222, 54193, 280.224, 24.978, -0.148
54223, 54282, 54253, 280.141, 25.067, -9999.000
54283, 54342, 54313, 280.037, 25.911, -9999.000
54343, 54402, 54373, 279.455, 29.344, 1.304
54403, 54462, 54433, 278.786, 33.856, 1.067
54463, 54522, 54493, 278.259, 36.044, 0.408
54523, 54582, 54553, 277.941, 35.922, 0.782
54583, 54642, 54613, 277.686, 36.378, 1.750
54643, 54702, 54673, 277.494, 36.222, 2.011
54703, 54762, 54733, 277.365, 36.222, 1.730
54763, 54822, 54793, 276.969, 40.633, 1.056
54823, 54882, 54853, 276.559, 45.433, 1.125
54884, 54943, 54914, 276.266, 52.200, 3.063