51,1001 Stephens, Britton National Center for Atmospheric Research Medusa Whole Air Flask Sampler ATom 1,1 2016,8,3,2018,11,27 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 68583,69181,69149,1,200,481,756,791,2759,756,-535.33,63.89,-548.3,395.16,-99999,-99999,-99999 69188,70361,70310,2,90,700,787,706,1045,-99999,-99999,-99999,-99999,-99999,-99999,-99999,-99999 70367,71771,71683,3,90,700,758,701,1010,733,-573.45,7.68,-571.51,399.79,-8.368,0.238,-99999 71778,72772,72682,4,90,700,755,699,996,732,-571.28,50.93,-580.81,400.75,-8.372,0.329,-99999 72778,73771,73736,5,200,481,757,764,2577,732,-542.1,33.53,-547.02,400.13,-99999,-99999,-99999 73777,74081,74047,6,200,480,788,767,2618,734,-570.72,42.54,-578.03,398.81,-99999,-99999,-99999 74088,74511,74478,7,200,481,791,766,2658,-99999,-99999,-99999,-99999,-99999,-99999,-99999,-99999 74517,74907,74874,8,200,481,787,765,2629,734,-574.96,17.18,-575.54,399.58,-8.371,0.352,-99999 74913,76836,76730,9,70,720,784,691,732,732,-560.87,47.92,-569.6,399.19,-99999,-99999,-99999 76842,77643,77588,10,200,481,752,755,2590,727,-571.93,38.13,-578.07,401.35,-8.397,0.561,-99999 77649,78063,78029,11,200,481,784,764,2598,739,-577.59,20.68,-579.1,402.68,-8.432,0.627,-99999 78070,78476,78442,12,200,481,787,766,2654,739,-565.17,32.84,-569.9,399.25,-8.324,0.368,-99999 78482,79899,79817,13,90,700,790,702,1024,737,-570.02,34.06,-575.08,400.47,-8.358,0.303,-99999 79905,80451,80364,14,90,700,757,699,1012,737,-570.8,53.86,-581.11,402.08,-99999,-99999,-99999 80457,81241,81207,15,200,481,758,774,2594,746,-563.7,33.68,-568.65,400.89,-8.348,0.39,-99999 81246,81586,81552,16,200,481,784,772,2671,739,-578.47,38.43,-584.68,402.59,-99999,-99999,-99999 81597,82068,82035,17,199,481,803,797,2648,724,-574.84,59.82,-586.73,402.96,-8.47,0.624,-99999 82079,83165,83099,18,70,720,794,695,762,736,-579.08,28.66,-582.7,403.33,-8.439,0.714,-99999 83176,83751,83635,19,70,720,752,696,738,730,-581.39,58.88,-593.03,403.28,-8.528,0.566,-99999 83762,84938,84873,20,199,481,752,805,2573,723,-576.98,34.28,-582.09,401.25,-8.275,0.564,-99999 84949,85321,85287,21,200,481,798,809,2640,728,-578.42,42.19,-585.63,402.2,-8.389,0.69,-99999 85332,86371,86324,22,70,720,796,696,765,732,-572.23,62.5,-584.83,402.83,-8.435,0.379,-99999 86382,87169,87032,23,54,733,749,691,517,739,-592.18,-36.32,-578.57,401.46,-99999,-99999,-99999 87180,87814,87710,24,80,710,753,697,868,732,-580.44,56.58,-591.47,402.67,-8.47,0.537,-99999 87825,88742,88707,25,200,481,753,789,2597,721,-549.75,27.31,-553.02,397.27,-8.206,0.165,-99999 88753,89131,89097,26,200,481,796,797,2627,726,-588.13,38.52,-594.37,403.56,-8.395,1.051,-99999 89142,89603,89569,27,199,481,798,788,2596,719,-575.91,52.43,-585.84,402.92,-8.46,0.651,-99999 89614,90949,90777,28,50,740,797,692,466,737,-578.01,34.6,-583.21,403.04,-8.338,0.673,-99999 90960,92183,91986,29,50,740,751,690,439,734,-582.96,18.25,-583.82,403.01,-8.364,0.735,-99999 92194,92722,92615,30,89,701,752,698,956,726,-590.71,21.92,-592.55,403.26,-8.56,0.174,-99999 92733,93539,93502,31,200,481,753,797,2582,723,-583.77,47.93,-592.5,403.3,-8.45,0.815,-99999 93550,94397,94363,32,200,481,799,817,2574,743,-567.19,30.85,-571.39,399.96,-8.331,0.572,-99999