40, 1001 Brune, William; Thames, Alexander; Miller, David; Brosius, Alexandra Penn State University ATHOS - Airborne Tropospheric Hydrogen Oxides Sensor ATom 1, 1 2017, 10, 14, 2019, 05, 24 0 Start_UTC, seconds, seconds since UTC midnight on day of takeoff 3 1, 1, 1 -9999.000, -9999.000, -9999.000 Stop_UTC, seconds, seconds since UTC midnight on day of takeoff Mid_UTC, seconds, seconds since UTC midnight on day of takeoff OHInterference_ATHOS, pptv, OH interference in pptv 0 23 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 III: Science Flight #7 -- PUQ - PUQ ASSOCIATED_DATA: N/A INSTRUMENT_INFO: Total OH is from Laser Induced Fluorescence; OH interference is the residual from chemical removal of ambient OH. DATA_INFO: Units are pptv for OH interference. UNCERTAINTY: OHI absolute accuracy ~+/- 35% (actually a multiplicative factor of 1/1.35 to 1.35), 2 sigma confidence. 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 interference signals from individual 20 or 30 second periods have been averaged together for 150 seconds. - This averaging compensates for the noise introduced because OH and OH interference measurements are done sequentially, - and the OH interference signal is the residual of the chemical removal of ambient OH. - Small variations in ambient OH measurements can yield large (~1*10^6 cm^-3) variations in individual 20 or 30 second measurements. REVISION: R2 R2: Final Data (see OTHER_COMMENTS) R1: Final Data (see OTHER_COMMENTS) R0: Final Data (see OTHER_COMMENTS) Start_UTC, Stop_UTC, Mid_UTC, OHInterference_ATHOS 41672, 41821, 41747, -9999.000 41823, 41972, 41898, -0.021 41973, 42122, 42048, 0.009 42123, 42272, 42198, 0.013 42273, 42422, 42348, 0.001 42424, 42573, 42499, 0.004 42574, 42723, 42649, -0.005 42724, 42873, 42799, 0.003 42875, 43024, 42950, 0.008 43025, 43174, 43100, -0.008 43175, 43324, 43250, 0.001 43325, 43474, 43400, -0.006 43476, 43625, 43551, 0.000 43626, 43775, 43701, -0.008 43776, 43925, 43851, -0.000 43926, 44075, 44001, 0.001 44077, 44226, 44152, -0.013 44227, 44376, 44302, -0.000 44517, 44666, 44592, 0.017 44668, 44817, 44743, -0.006 44818, 44967, 44893, 0.019 44968, 45117, 45043, 0.006 45272, 45421, 45347, -0.005 45422, 45571, 45497, 0.000 45573, 45722, 45648, -0.014 45723, 45872, 45798, 0.023 45873, 46022, 45948, -0.004 46023, 46172, 46098, 0.008 46174, 46323, 46249, -0.015 46324, 46473, 46399, -9999.000 46474, 46623, 46549, 0.001 46624, 46773, 46699, 0.013 46775, 46924, 46850, 0.005 46925, 47074, 47000, 0.014 47075, 47224, 47150, 0.009 47226, 47375, 47301, 0.017 47376, 47525, 47451, -0.004 47526, 47675, 47601, 0.003 47676, 47825, 47751, 0.030 47827, 47976, 47902, 0.039 47977, 48126, 48052, 0.004 48267, 48416, 48342, 0.035 48418, 48567, 48493, -9999.000 48568, 48717, 48643, -9999.000 48718, 48867, 48793, -9999.000 49020, 49169, 49095, -0.017 49170, 49319, 49245, -0.013 49320, 49469, 49395, 0.012 49471, 49620, 49546, -0.024 49621, 49770, 49696, 0.005 49771, 49920, 49846, 0.005 49921, 50070, 49996, -0.004 50072, 50221, 50147, 0.002 50222, 50371, 50297, 0.024 50493, 50642, 50568, -0.030 50819, 50968, 50894, 0.103 50969, 51118, 51044, 0.059 51119, 51268, 51194, 0.079 51270, 51419, 51345, 0.117 51420, 51569, 51495, 0.055 51570, 51719, 51645, 0.109 51721, 51870, 51796, 0.141 51871, 52020, 51946, 0.169 52021, 52170, 52096, 0.165 52171, 52320, 52246, 0.146 52322, 52471, 52397, 0.149 52472, 52621, 52547, 0.122