49,1001 Stephens, Britton National Center for Atmospheric Research Medusa Whole Air Flask Sampler ATom 1,1 2016,7,29,2017,6,9 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 O2_N2, per meg Ar_N2, per meg O2_N2_corr, per meg CO2, ppm d13C_CO2, per mil d18O_CO2, per mil D14C_CO2, per mil 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 a altitude-dependent fractionation correction is applied (O2_N2_corr). CO2 is extracted after CO2 and O2/N2 content analysis for later isotope analysis: d13-CO2, d18O-CO2, and radiocarbon (D14C). 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,O2_N2,Ar_N2,O2_N2_corr,CO2,d13C_CO2,d18O_CO2,D14C_CO2 52036,52835,52802,1,200,481,753,773,2726,731,-610.25,39.93,-99999,404.74,-99999,-99999,-99999 52841,53342,53310,2,200,481,792,780,2732,729,-598.26,31.64,-99999,403.22,-99999,-99999,-99999 53348,55321,55264,3,82,700,793,693,953,715,-603.55,16.19,-99999,403.29,-99999,-99999,-99999 55383,56347,56251,4,84,700,746,694,963,711,-604.56,20.63,-99999,403.82,-99999,-99999,-99999 56408,57775,57729,5,170,561,771,744,2120,715,-608.12,30.99,-99999,403.93,-99999,-99999,-99999 57836,58099,58058,6,170,561,774,748,2144,720,-601.55,30.75,-99999,402.77,-99999,-99999,-99999 58161,60855,60798,7,170,561,781,742,2153,715,-601.43,52.45,-99999,403.39,-99999,-99999,-99999 60916,61170,61129,8,170,561,772,739,2129,712,-600.78,31.57,-99999,402.27,-99999,-99999,-99999 61232,61814,61772,9,170,561,771,735,2106,712,-596.33,26.29,-99999,402.22,-99999,-99999,-99999 61875,62197,62156,10,170,561,771,741,2153,718,-598.46,49.92,-99999,402.43,-99999,-99999,-99999 62258,63207,63123,11,90,700,760,706,1063,725,-602.25,21.71,-99999,403.24,-99999,-99999,-99999 63269,64176,64084,12,82,700,758,691,950,714,-597.45,27.54,-99999,402.86,-99999,-99999,-99999 64237,64653,64571,13,90,700,740,702,1036,723,-596.42,52.44,-99999,403.1,-99999,-99999,-99999 64714,65641,65599,14,170,561,772,732,2100,711,-606.61,29.03,-99999,403.26,-99999,-99999,-99999 65703,65961,65920,15,170,561,772,750,2133,727,-604.94,35.37,-99999,403.07,-99999,-99999,-99999 66021,67590,67505,16,88,700,775,701,1035,724,-599.21,48.09,-99999,403.25,-99999,-99999,-99999 67661,68402,68342,17,170,561,738,763,2111,717,-610.37,37.27,-99999,403.54,-99999,-99999,-99999 68473,68941,68899,18,170,561,774,786,2089,746,-614.19,29.33,-99999,403.61,-99999,-99999,-99999 69012,69467,69425,19,170,561,770,790,2127,689,-610.28,34.2,-99999,403.52,-99999,-99999,-99999 69538,71271,71180,20,81,700,754,697,930,725,-607.77,10.29,-99999,403.13,-99999,-99999,-99999 71342,71787,71703,21,90,700,760,712,1029,722,-593.64,46.37,-99999,403.03,-99999,-99999,-99999 71858,72638,72596,22,170,561,770,770,2098,715,-602.92,35.61,-99999,403.25,-99999,-99999,-99999 72709,73032,72990,23,170,561,770,772,2119,715,-602.73,43.09,-99999,403.11,-99999,-99999,-99999 73103,74557,74469,24,79,700,755,696,927,712,-595.77,23.57,-99999,402.94,-99999,-99999,-99999 74628,75301,75210,25,90,700,740,712,1035,723,-596.64,52.02,-99999,403.53,-99999,-99999,-99999 75372,75812,75770,26,170,561,776,766,2102,716,-601.97,36.96,-99999,403.34,-99999,-99999,-99999 75883,76141,76099,27,170,561,770,761,2096,714,-594.67,29.41,-99999,402.59,-99999,-99999,-99999 76212,76913,76871,28,170,561,770,771,2140,717,-598.63,42.62,-99999,402.64,-99999,-99999,-99999 76984,77826,77753,29,89,700,779,711,1053,772,-602.23,38.64,-99999,403.66,-99999,-99999,-99999 77897,78601,78487,30,69,720,746,699,787,723,-608.28,14.96,-99999,404.52,-99999,-99999,-99999 78672,80258,80207,31,170,561,751,773,2097,720,-594.98,32.22,-99999,402.95,-99999,-99999,-99999 80329,80723,80681,32,170,561,772,791,2116,735,-609.08,34.31,-99999,404.4,-99999,-99999,-99999