49,1001 Stephens, Britton National Center for Atmospheric Research Medusa Whole Air Flask Sampler ATom 1,1 2018,4,29,2018,11,27 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 63699,64744,64712,1,170,541,770,843,2788,769,-701.26,7.39,-699.24,414.75,-99999,-99999,-99999 64937,66421,66389,2,170,541,773,834,2769,769,-675.79,5.66,-99999,411.32,-99999,-99999,-99999 66428,68554,68522,3,170,541,791,829,2759,762,-672.78,3.64,-99999,411.33,-99999,-99999,-99999 68561,69081,69049,4,170,541,803,832,2766,761,-677.07,10.97,-676,411.22,-99999,-99999,-99999 69087,70298,70266,5,170,541,808,835,2768,764,-699.74,18.33,-700.62,414.23,-99999,-99999,-99999 70304,70830,70798,6,170,541,809,830,2764,767,-691.89,14.87,-691.86,413.59,-99999,-99999,-99999 70836,71766,71734,7,170,541,811,830,2746,764,-668.16,16.34,-668.52,411.06,-99999,-99999,-99999 71773,73086,73049,8,140,621,805,776,2191,763,-674.5,7.36,-99999,412.36,-99999,-99999,-99999 73093,73509,73469,9,140,621,798,805,2205,764,-673.02,2.85,-669.8,411.9,-99999,-99999,-99999 73515,74105,74073,10,170,541,800,792,2757,759,-672.88,16.63,-673.31,411.57,-99999,-99999,-99999 74111,74550,74518,11,170,541,808,796,2765,764,-692.91,13.79,-692.59,413.62,-99999,-99999,-99999 74556,75009,74977,12,170,541,807,796,2756,762,-674.95,14.39,-674.79,411.53,-99999,-99999,-99999 75016,76511,76479,13,170,541,804,799,2763,760,-672.53,-2.3,-99999,411.81,-99999,-99999,-99999 76517,77036,77004,14,170,541,803,836,2762,767,-663.63,17.12,-664.19,411.07,-99999,-99999,-99999 77043,77429,77397,15,170,541,803,846,2766,783,-687.25,8.02,-685.4,413.16,-99999,-99999,-99999 77435,78151,78119,16,170,541,805,797,2766,760,-704.66,7.97,-702.8,414.47,-99999,-99999,-99999 78162,78657,78625,17,170,541,809,805,2744,734,-691.9,3.29,-688.79,412.03,-99999,-99999,-99999 78668,80666,80625,18,140,621,803,794,2155,777,-688.13,-12.05,-99999,413.34,-99999,-99999,-99999 80677,80952,80918,19,170,541,794,832,2717,749,-686.84,1.43,-99999,412.28,-99999,-99999,-99999 80963,81596,81564,20,170,541,805,836,2742,736,-697.31,11.34,-696.34,413.75,-99999,-99999,-99999 81607,82268,82236,21,170,541,811,832,2730,736,-695.47,7.88,-693.58,413.38,-99999,-99999,-99999 82279,82577,82545,22,170,541,811,837,2747,729,-693.36,14.74,-693.29,413.55,-99999,-99999,-99999 82588,83005,82973,23,170,541,807,808,2740,727,-692.27,5.33,-689.71,412.96,-99999,-99999,-99999 83016,84796,84755,24,140,621,802,811,2164,743,-680.65,-24.13,-99999,411.08,-99999,-99999,-99999 85624,86981,86906,25,60,740,752,722,729,749,-697.23,8.17,-695.42,414.28,-99999,-99999,-99999 86992,87672,87553,26,60,740,765,733,744,752,-698.91,4.35,-696.09,414.1,-99999,-99999,-99999 87683,88296,88179,27,60,740,771,750,743,751,-680.54,21.06,-682.15,412.57,-99999,-99999,-99999 88307,88936,88818,28,60,740,773,742,738,744,-680.78,13.65,-99999,413.19,-99999,-99999,-99999 88947,90327,90204,29,60,740,770,745,719,743,-689.42,0.82,-99999,414.69,-99999,-99999,-99999 90338,90990,90868,30,60,740,770,746,709,744,-651.06,17.32,-99999,409.8,-99999,-99999,-99999 91001,91781,91655,31,60,740,768,742,703,745,-654.16,25.66,-99999,410.48,-99999,-99999,-99999 91792,92419,92296,32,60,740,768,741,705,748,-665.56,16.78,-666.03,411.67,-99999,-99999,-99999