39, 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, 11, 28 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 22 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: R1 R1: Final Data (see OTHER_COMMENTS) 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, -0.004 71636, 71785, 71711, 0.013 71786, 71935, 71861, 0.022 71937, 72086, 72012, -0.002 72217, 72366, 72292, 0.015 72537, 72686, 72612, 0.019 72688, 72837, 72763, -0.003 72838, 72987, 72913, 0.001 72988, 73137, 73063, 0.017 73138, 73287, 73213, 0.000 73288, 73437, 73363, 0.010 73439, 73588, 73514, 0.018 73729, 73878, 73804, 0.019 73879, 74028, 73954, 0.005 74160, 74309, 74235, 0.007 74487, 74636, 74562, 0.005 74638, 74787, 74713, 0.001 74788, 74937, 74863, -0.014 74938, 75087, 75013, 0.016 75088, 75237, 75163, 0.013 75238, 75387, 75313, -0.003 75389, 75538, 75464, -0.005 75539, 75688, 75614, 0.004 75829, 75978, 75904, 0.027 76135, 76284, 76210, -0.012 76286, 76435, 76361, 0.015 76436, 76585, 76511, 0.002 76586, 76735, 76661, 0.003 76736, 76885, 76811, -0.019 76886, 77035, 76961, 0.014 77037, 77186, 77112, -0.000 77187, 77336, 77262, 0.019 77337, 77486, 77412, 0.009 77487, 77636, 77562, 0.005 77637, 77786, 77712, 0.002 77878, 78027, 77953, -0.028 78083, 78232, 78158, -0.007 78233, 78382, 78308, -0.018 78383, 78532, 78458, -0.013 78533, 78682, 78608, 0.018 78684, 78833, 78759, 0.018 78834, 78983, 78909, 0.026 78984, 79133, 79059, 0.018 79134, 79283, 79209, -0.015 79284, 79433, 79359, -9999.000 79435, 79584, 79510, 0.006 79585, 79734, 79660, 0.003 79735, 79884, 79810, 0.036 79885, 80034, 79960, 0.004 80035, 80184, 80110, 0.010 80186, 80335, 80261, -0.003 80336, 80485, 80411, 0.007 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