49,1001 Stephens, Britton National Center for Atmospheric Research Medusa Whole Air Flask Sampler ATom 1,1 2018,5,1,2018,11,27 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 67061,68333,68301,1,170,541,774,567,2774,-99999,-99999,-99999,-99999,-99999,-99999,-99999,-99999 68340,70086,70054,2,170,541,815,778,2754,-99999,-99999,-99999,-99999,-99999,-99999,-99999,-99999 70093,70511,70479,3,170,541,816,753,2755,-99999,-99999,-99999,-99999,-99999,-99999,-99999,-99999 70518,70889,70857,4,170,541,812,737,2737,-99999,-99999,-99999,-99999,-99999,-99999,-99999,-99999 70895,71466,71433,5,170,541,810,726,2720,-99999,-99999,-99999,-99999,-99999,-99999,-99999,-99999 71472,71920,71888,6,170,541,809,724,2730,-99999,-99999,-99999,-99999,-99999,-99999,-99999,-99999 71926,73242,73210,7,170,541,806,763,2746,-99999,-99999,-99999,-99999,-99999,-99999,-99999,-99999 73249,73506,73474,8,170,541,812,772,2746,-99999,-99999,-99999,-99999,-99999,-99999,-99999,-99999 73513,74149,74117,9,170,541,807,728,2722,-99999,-99999,-99999,-99999,-99999,-99999,-99999,-99999 74155,74588,74555,10,170,541,806,706,2718,-99999,-99999,-99999,-99999,-99999,-99999,-99999,-99999 74594,74990,74958,11,170,541,806,735,2745,-99999,-99999,-99999,-99999,-99999,-99999,-99999,-99999 74996,76226,76194,12,170,541,809,711,2753,-99999,-99999,-99999,-99999,-99999,-99999,-99999,-99999 76233,76968,76936,13,170,541,808,707,2746,-99999,-99999,-99999,-99999,-99999,-99999,-99999,-99999 76975,77601,77568,14,170,541,808,628,2716,-99999,-99999,-99999,-99999,-99999,-99999,-99999,-99999 77607,78556,78523,15,170,541,806,770,2733,-99999,-99999,-99999,-99999,-99999,-99999,-99999,-99999 78711,79801,79765,16,140,621,766,693,2180,-99999,-99999,-99999,-99999,-99999,-99999,-99999,-99999 80202,80842,80807,17,170,541,524,706,2741,729,-634.61,5.28,-632.03,407.96,-99999,-99999,-99999 81141,81401,81367,18,170,541,607,704,2699,780,-627.74,3.68,-624.74,407.78,-99999,-99999,-99999 81412,81900,81867,19,170,541,790,714,2746,748,-630.21,8.42,-628.46,406.96,-99999,-99999,-99999 81911,83719,83665,20,110,670,809,670,1584,733,-631.62,0.62,-99999,406.42,-99999,-99999,-99999 83730,84661,84626,21,170,541,774,743,2746,731,-632.95,5.72,-630.49,407.48,-99999,-99999,-99999 84672,85433,85401,22,170,541,809,687,2722,720,-632.42,-26.41,-621.44,407.73,-99999,-99999,-99999 85444,87336,87304,23,170,541,807,749,2756,723,-628,3.61,-624.98,406.58,-99999,-99999,-99999 87347,89142,89089,24,110,670,807,675,1568,732,-641.42,-1.29,-99999,407.24,-99999,-99999,-99999 89153,90703,90659,25,170,540,770,693,2726,731,-626.44,4.95,-623.77,407.04,-99999,-99999,-99999 90714,91346,91313,26,170,540,804,728,2710,734,-622.69,7.66,-620.74,407.03,-99999,-99999,-99999 91357,91524,91492,27,170,540,803,743,2707,732,-628.37,0.63,-624.56,407.18,-99999,-99999,-99999 91535,92226,92193,28,170,540,798,771,2739,719,-628.51,10.68,-99999,406.44,-99999,-99999,-99999 92237,93243,93187,29,110,670,804,674,1560,729,-630.35,6.96,-99999,406.95,-99999,-99999,-99999 93254,94050,93993,30,110,670,772,674,1557,730,-638.7,-3.91,-99999,407.63,-99999,-99999,-99999 94061,95139,95081,31,110,670,769,688,1537,733,-644.36,-9.83,-99999,407.53,-99999,-99999,-99999 95150,95950,95912,32,170,540,768,762,2692,751,-623.68,3.78,-620.7,406.28,-99999,-99999,-99999