49,1001 Stephens, Britton National Center for Atmospheric Research Medusa Whole Air Flask Sampler ATom 1,1 2017,10,27,2018,11,27 0 Start_UTC, seconds 16 1.0,1.0,1.0,1.0,1.0,1.0,1.0,1.0,1.0,1.0,1.0,1.0,1.0,1.0,1.0,1.0 -99999,-99999,-99999,-99999,-99999,-99999,-99999,-99999,-99999,-99999,-99999,-99999,-99999,-99999,-99999,-99999 Stop_UTC, seconds Mean_UTC, seconds position, integer upstream_pressure, torr downstream_pressure, torr bypass_pressure, torr sample_pressure, torr flow, L/min flask_pressure, torr O2N2_MED, per meg ArN2_MED, per meg O2N2star_MED, per meg CO2_MED, ppm co2c13_MED, ppt co2o18_MED, ppt co2c14_MED, ppt 0 19 PI_CONTACT_INFO: stephens@ucar.edu PLATFORM: NASA DC-8 aircraft LOCATION: DC-8 location data available at http://espoarchive.nasa.gov/archive/fileinfo/MMS-FlightPath_DC8_20160712.ict ASSOCIATED_DATA: See http://espoarchive.nasa.gov/archive/browse/atom UNCERTAINTY: N/A INSTRUMENT_INFO: N/A DATA_INFO: N/A DM_CONTACT_INFO: stephens@ucar.edu PROJECT_INFO: N/A ULOD_FLAG: -7777 ULOD_VALUE: N/A LLOD_FLAG: -8888 LLOD_VALUE: N/A STIPULATIONS_ON_USE: Until made public, only the ATom science team is allowed to use this data, per the ATom data protocol. OTHER_COMMENTS: Data are start and stop times for individual flask samples taken with Medusa. The Mean_UTC variable is the representative time of each sample as calculated with an averaging kernel. See Bent 2014 (PhD thesis, UCSD) for details. All pressure variables are measured in situ during sampling except for flask_pressure, which is the final pressure of the flask measured during analysis. In each flask the O2/N2 ratio and the Ar/N2 ratio are measured. When necessary an altitude-dependent fractionation correction is applied (O2N2corr_MED). Note that the CO2 mole fraction is reported on the Scripps Institution of Oceanography O2 Program CO2 Scale. CO2 is extracted after CO2 and O2/N2 content analysis for later isotope analysis: d13-CO2 (co2c13_MED), d18O-CO2 (co2o18_MED), and radiocarbon (co2c14_MED). REVISION: R1 R1: updated R0: final data. Start_UTC,Stop_UTC,Mean_UTC,position,upstream_pressure,downstream_pressure,bypass_pressure,sample_pressure,flow,flask_pressure,O2N2_MED,ArN2_MED,O2N2star_MED,CO2_MED,co2c13_MED,co2o18_MED,co2c14_MED 65282,66589,66557,1,170,521,773,851,2787,752,-626.61,24.67,-629.17,405.6,-99999,-99999,-99999 66596,68004,67967,2,170,521,813,851,2749,750,-616.94,10.74,-99999,404.96,-99999,-99999,-99999 68011,68396,68364,3,170,521,802,842,2724,740,-615.58,16,-615.85,404.53,-99999,-99999,-99999 68402,68699,68666,4,170,521,801,840,2686,738,-626.97,20.19,-628.35,405.87,-99999,-99999,-99999 68706,69104,69071,5,170,521,798,840,2677,740,-628.24,22.18,-630.14,405.78,-99999,-99999,-99999 69110,69936,69903,6,170,521,801,845,2704,745,-619.21,19.16,-620.31,405.1,-99999,-99999,-99999 69942,70401,70368,7,170,521,802,839,2666,742,-630.32,30.84,-634.52,405.61,-99999,-99999,-99999 70408,70645,70612,8,170,521,801,839,2689,739,-617.99,26.71,-621.1,404.95,-99999,-99999,-99999 70651,70978,70945,9,170,521,801,844,2704,742,-612.35,22.66,-614.38,404.42,-99999,-99999,-99999 70985,72422,72381,10,140,611,797,816,2138,744,-615.71,16.09,-99999,403.94,-99999,-99999,-99999 72428,72736,72702,11,170,521,796,842,2691,743,-615.96,13.82,-615.65,403.6,-99999,-99999,-99999 72742,73085,73052,12,170,521,794,834,2650,733,-606,25.22,-608.71,403.76,-99999,-99999,-99999 73092,73431,73398,13,170,521,796,832,2628,728,-610.63,20.38,-612.06,404.5,-99999,-99999,-99999 73437,73856,73822,14,170,521,794,836,2630,737,-607.78,20.76,-609.31,404.14,-99999,-99999,-99999 73863,74382,74349,15,170,521,792,862,2688,756,-609.99,26.03,-612.92,403.63,-99999,-99999,-99999 74388,74733,74700,16,170,521,802,847,2702,736,-622.96,14.39,-622.8,404.15,-99999,-99999,-99999 74744,76409,76376,17,170,521,799,874,2684,726,-623.01,-0.14,-99999,402.65,-99999,-99999,-99999 76420,77036,77003,18,170,521,799,907,2646,780,-621.08,12.02,-620.29,404.59,-99999,-99999,-99999 77047,77356,77323,19,170,521,805,892,2635,741,-617.1,15.43,-617.21,404.66,-99999,-99999,-99999 77367,77841,77807,20,170,521,802,882,2620,723,-615.49,17.43,-616.13,404.53,-99999,-99999,-99999 77852,78145,78112,21,170,521,800,883,2653,727,-614.26,9.19,-612.72,404.34,-99999,-99999,-99999 78156,78566,78533,22,170,521,803,874,2672,722,-615.63,11.44,-614.69,404.23,-99999,-99999,-99999 78577,80271,80238,23,170,521,797,866,2668,717,-615.99,5.97,-613.59,404.03,-99999,-99999,-99999 80282,80782,80749,24,170,521,797,873,2666,724,-611.91,3.45,-608.85,403.92,-99999,-99999,-99999 80793,81210,81177,25,170,521,800,866,2634,724,-614.35,11.43,-613.6,404.37,-99999,-99999,-99999 81221,81620,81586,26,170,521,801,864,2628,723,-617.72,8.56,-616.01,404.87,-99999,-99999,-99999 81631,82696,82663,27,170,521,800,872,2669,729,-610.16,15.69,-610.34,404.6,-99999,-99999,-99999 82707,84596,84563,28,170,521,801,858,2652,712,-618.16,-7.22,-99999,403.79,-99999,-99999,-99999 84607,84943,84910,29,170,521,795,864,2645,719,-616.86,8.19,-615.05,404.12,-99999,-99999,-99999 84954,85571,85537,30,170,521,798,863,2613,719,-633.88,17.86,-634.64,408.11,-99999,-99999,-99999 85582,86066,86032,31,170,521,795,872,2618,723,-615.4,13.23,-614.93,404.34,-99999,-99999,-99999 86077,88141,88083,32,110,670,788,809,1534,736,-624.19,-9.97,-99999,403.86,-99999,-99999,-99999