49,1001 Stephens, Britton National Center for Atmospheric Research Medusa Whole Air Flask Sampler ATom 1,1 2018,5,17,2018,11,27 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 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 32540,34420,34388,1,170,541,766,857,2750,770,-676.32,17.67,-677.03,412.2,-99999,-99999,-99999 34428,34953,34921,2,170,541,810,869,2746,782,-673.3,17.9,-674.07,411.62,-99999,-99999,-99999 34960,37279,37247,3,170,541,802,847,2730,766,-670.33,10.11,-99999,411.4,-99999,-99999,-99999 37285,38411,38378,4,170,540,797,845,2722,760,-673.73,4.93,-671.06,411.92,-99999,-99999,-99999 38417,39320,39287,5,170,540,800,842,2697,762,-666.98,10.45,-665.77,412.38,-99999,-99999,-99999 39326,39759,39726,6,170,540,795,847,2731,768,-683.12,10.65,-681.97,412.51,-99999,-99999,-99999 39766,41668,41636,7,170,540,798,847,2733,767,-685.37,5.29,-682.79,412.6,-99999,-99999,-99999 41675,42431,42398,8,170,541,804,844,2702,769,-672.5,12.93,-671.95,412.14,-99999,-99999,-99999 42437,43354,43322,9,170,540,796,849,2737,770,-666,9.29,-664.49,411.27,-99999,-99999,-99999 43360,45058,45026,10,170,541,801,840,2728,765,-674.06,1.11,-99999,411.39,-99999,-99999,-99999 45064,46061,46028,11,170,541,804,844,2700,768,-687.6,19.75,-688.86,412.83,-99999,-99999,-99999 46067,46563,46530,12,170,541,797,843,2703,766,-689.37,15.78,-689.58,413.51,-99999,-99999,-99999 46571,47548,47515,13,170,541,798,849,2728,767,-678.77,9.01,-677.18,411.67,-99999,-99999,-99999 47554,49221,49180,14,170,541,804,849,2692,771,-665.44,7.69,-99999,411.29,-99999,-99999,-99999 49227,50318,50285,15,170,541,797,859,2664,780,-677.41,5.63,-99999,411.82,-99999,-99999,-99999 50324,52335,52302,16,170,540,796,841,2674,754,-702.29,12.18,-701.54,413.73,-99999,-99999,-99999 52346,53101,53068,17,170,541,802,846,2680,734,-684.26,13.8,-683.94,412.93,-99999,-99999,-99999 53112,54230,54196,18,170,541,803,884,2628,782,-660.7,2.48,-99999,409.17,-99999,-99999,-99999 54241,56305,56271,19,170,541,792,879,2651,749,-654.79,2.67,-651.52,408.93,-99999,-99999,-99999 56316,57472,57439,20,170,541,806,865,2662,734,-682.39,25.09,-685.07,413.59,-99999,-99999,-99999 57483,57810,57777,21,170,541,800,863,2654,733,-688.27,16.91,-688.78,413.59,-99999,-99999,-99999 57821,58354,58321,22,170,541,796,846,2637,725,-685.83,14.92,-685.81,412.78,-99999,-99999,-99999 58365,58799,58765,23,169,541,792,841,2633,723,-673.48,12.78,-99999,411.61,-99999,-99999,-99999 58810,59950,59891,24,110,670,795,783,1483,730,-634.13,-13.81,-99999,404.96,-99999,-99999,-99999 59961,61883,61822,25,110,670,766,781,1466,732,-615.84,-40.84,-99999,402.72,-99999,-99999,-99999 61894,62946,62885,26,110,670,764,785,1464,734,-616.32,-45.7,-99999,402.4,-99999,-99999,-99999 62957,63921,63860,27,110,670,763,783,1465,727,-618.15,-22.95,-99999,402.92,-99999,-99999,-99999 63932,67501,67440,28,110,670,764,777,1475,723,-682.5,9.36,-681,412.67,-99999,-99999,-99999