38, 1001 Brune, William; Thames, Alexander; Miller, David; Brosius, Alexandra Penn State University ATHOS - Airborne Tropospheric Hydrogen Oxides Sensor ATom 1, 1 2017, 10, 06, 2018, 10, 25 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 21 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 #4 -- KOA - NAN ASSOCIATED_DATA: N/A INSTRUMENT_INFO: OH from Laser Induced Fluorescence; OH interference from chemical removal. DATA_INFO: Units are pptv for OH interference. UNCERTAINTY: HOx absolute accuracy ~+/- 32% (actually a multiplicative factor of 1/1.32 to 1.32), 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 yield large (~1*10^6 cm^-3) variations in individual 20 or 30 second measurements. REVISION: R0 R0: Final Data (see OTHER_COMMENTS) Start_UTC, Stop_UTC, Mid_UTC, OHInterference_ATHOS 68182, 68331, 68257, -9999.000 68332, 68481, 68407, -9999.000 68483, 68632, 68558, -9999.000 68633, 68782, 68708, -9999.000 68923, 69072, 68998, -9999.000 69499, 69648, 69574, -9999.000 71336, 71485, 71411, -0.016 71486, 71635, 71561, -0.005 71636, 71785, 71711, 0.014 71786, 71935, 71861, 0.025 71937, 72086, 72012, -0.002 72217, 72366, 72292, 0.021 72537, 72686, 72612, 0.026 72688, 72837, 72763, -0.003 72838, 72987, 72913, 0.002 72988, 73137, 73063, 0.019 73138, 73287, 73213, 0.000 73288, 73437, 73363, 0.011 73439, 73588, 73514, 0.019 73729, 73878, 73804, 0.021 73879, 74028, 73954, 0.006 74160, 74309, 74235, 0.008 74487, 74636, 74562, 0.005 74638, 74787, 74713, 0.001 74788, 74937, 74863, -0.015 74938, 75087, 75013, 0.017 75088, 75237, 75163, 0.015 75238, 75387, 75313, -0.003 75389, 75538, 75464, -0.005 75539, 75688, 75614, 0.006 75829, 75978, 75904, 0.035 76135, 76284, 76210, -0.012 76286, 76435, 76361, 0.018 76436, 76585, 76511, 0.002 76586, 76735, 76661, 0.003 76736, 76885, 76811, -0.020 76886, 77035, 76961, 0.015 77037, 77186, 77112, -0.000 77187, 77336, 77262, 0.020 77337, 77486, 77412, 0.010 77487, 77636, 77562, 0.006 77637, 77786, 77712, 0.002 77878, 78027, 77953, -0.029 78083, 78232, 78158, -0.008 78233, 78382, 78308, -0.018 78383, 78532, 78458, -0.014 78533, 78682, 78608, 0.019 78684, 78833, 78759, 0.020 78834, 78983, 78909, 0.028 78984, 79133, 79059, 0.021 79134, 79283, 79209, -0.016 79284, 79433, 79359, -9999.000 79435, 79584, 79510, 0.009 79585, 79734, 79660, 0.005 79735, 79884, 79810, 0.044 79885, 80034, 79960, 0.006 80035, 80184, 80110, 0.012 80186, 80335, 80261, -0.003 80336, 80485, 80411, 0.008 80486, 80635, 80561, -0.000 80636, 80785, 80711, -9999.000 80907, 81056, 80982, -9999.000 82581, 82730, 82656, -9999.000 82731, 82880, 82806, -9999.000 82881, 83030, 82956, -9999.000 83032, 83181, 83107, -9999.000 83182, 83331, 83257, -9999.000