51,1001 Stephens, Britton National Center for Atmospheric Research Medusa Whole Air Flask Sampler ATom 1,1 2016,8,17,2018,11,27 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 21 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: R3 R3: updated R2: updated 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 29138,29539,29506,1,200,481,753,778,2710,729,-593.43,50.31,-602.8,404.4,-99999,-99999,-99999 29546,31613,31530,2,89,700,761,700,990,723,-574.08,67.62,-588.04,402.57,-99999,-99999,-99999 31619,32058,31972,3,90,700,760,702,989,722,-573.44,63.23,-586.23,400.86,-99999,-99999,-99999 32065,32940,32904,4,200,481,756,755,2548,709,-605.67,15.81,-605.88,403.12,-99999,-99999,-99999 32946,33198,33164,5,200,481,782,764,2608,717,-610.89,28.35,-614.43,405.3,-99999,-99999,-99999 33204,35306,35222,6,90,700,786,700,992,-99999,-99999,-99999,-99999,-99999,-99999,-99999,-99999 35313,35723,35637,7,90,700,757,698,982,722,-583.04,55.6,-593.81,401.59,-99999,-99999,-99999 35729,36639,36602,8,200,481,756,747,2532,707,-604.55,19.64,-605.78,404.41,-99999,-99999,-99999 36645,36924,36890,9,200,481,778,758,2600,715,-603.75,25.84,-606.63,404.93,-99999,-99999,-99999 36930,39031,38939,10,80,710,788,693,859,722,-588.23,-19.18,-579.16,399.95,-99999,-99999,-99999 39037,40385,40341,11,200,481,755,754,2526,718,-603.53,18.85,-604.55,404.1,-99999,-99999,-99999 40392,40842,40807,12,200,481,776,758,2603,720,-589.18,23.94,-591.55,401.98,-99999,-99999,-99999 40848,42879,42778,13,80,710,782,694,861,723,-580.9,6.64,-578.68,399.38,-99999,-99999,-99999 42885,43342,43243,14,80,710,752,693,846,722,-569.54,43.15,-577.01,398.62,-99999,-99999,-99999 43349,44401,44365,15,200,481,750,762,2540,724,-554.43,13.59,-554.06,397.67,-99999,-99999,-99999 44406,44773,44739,16,200,481,775,758,2600,715,-577.17,24.39,-579.66,398.73,-99999,-99999,-99999 44784,46956,46867,17,90,700,792,698,978,720,-575.36,-4.97,-570.06,398.1,-99999,-99999,-99999 46967,47225,47173,18,166,567,756,776,2015,745,-576.81,36.78,-582.59,399.78,-99999,-99999,-99999 47236,48342,48307,19,200,481,774,807,2517,720,-553.74,19.97,-555.06,397.87,-99999,-99999,-99999 48353,48863,48829,20,200,481,790,812,2600,714,-576.9,28.53,-580.49,400.54,-99999,-99999,-99999 48874,49326,49292,21,200,481,798,809,2613,717,-573.55,41.91,-580.69,400.12,-99999,-99999,-99999 49337,51328,51224,22,80,710,792,697,857,719,-587.11,17.15,-99999,403.07,-99999,-99999,-99999 51339,51977,51872,23,80,710,749,695,835,716,-576.99,48.72,-585.93,402.45,-99999,-99999,-99999 51988,52984,52948,24,200,481,750,780,2516,704,-556.78,34.27,-561.89,398.4,-99999,-99999,-99999 52995,53214,53179,25,200,481,785,783,2531,707,-558.71,22.12,-560.6,397.88,-99999,-99999,-99999 53225,53475,53441,26,200,481,787,791,2566,711,-571.39,34.91,-576.67,399.98,-99999,-99999,-99999 53486,54916,54846,27,90,700,792,704,992,720,-567.78,65.33,-581.13,402.01,-99999,-99999,-99999 54927,55338,55251,28,90,700,753,702,979,720,-578.88,53.68,-589.14,402.53,-99999,-99999,-99999 55349,56139,56099,29,200,481,753,785,2512,707,-550.91,33.51,-555.82,397.42,-99999,-99999,-99999 56150,56549,56514,30,200,481,790,798,2603,714,-580.03,45.24,-588.05,401.92,-99999,-99999,-99999 56560,58201,58106,31,70,720,796,693,708,721,-571.72,39.97,-578.34,401.5,-99999,-99999,-99999 58212,59048,58991,32,170,560,746,777,2054,693,-579.22,37.22,-585.11,402.2,-99999,-99999,-99999