50,1001 Stephens, Britton National Center for Atmospheric Research Medusa Whole Air Flask Sampler ATom 1,1 2017,2,15,2018,11,27 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 20 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: R2 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 31280,32781,32754,1,170,531,784,860,3249,741,-616.74,7.83,-614.84,405.38,-99999,-99999,-99999 32787,34485,34458,2,170,531,799,846,3190,729,-603.04,-17.96,-594.3,403.37,-99999,-99999,-99999 34492,35124,35096,3,170,531,791,832,3120,718,-639.63,-5.44,-634.21,409.04,-99999,-99999,-99999 35130,35741,35712,4,170,531,785,827,3082,712,-595.66,5.2,-593.06,403.81,-99999,-99999,-99999 35747,35951,35923,5,170,531,783,830,3085,714,-624.99,4.8,-622.28,407.88,-99999,-99999,-99999 35957,38025,37996,6,140,610,780,817,2516,727,-619.29,-27.26,-608.08,406.1,-99999,-99999,-99999 38031,38833,38805,7,170,531,786,823,3112,715,-638.57,-13,-631.14,409.4,-99999,-99999,-99999 38840,39301,39273,8,170,531,780,820,3101,714,-637.09,17.15,-637.66,407.78,-99999,-99999,-99999 39307,39694,39666,9,170,531,780,825,3110,722,-639.99,-12.56,-632.68,409.11,-99999,-99999,-99999 39701,41493,41458,10,140,610,790,810,2528,725,-620,-26.66,-608.95,405.4,-99999,-99999,-99999 41499,42359,42330,11,170,531,782,828,3126,724,-641.93,-5.84,-636.4,409.28,-99999,-99999,-99999 42365,42930,42902,12,170,531,784,822,3118,717,-641.14,-1.78,-636.69,407.33,-99999,-99999,-99999 42937,43421,43393,13,170,531,778,838,3207,732,-620.81,-15.86,-612.62,405.38,-99999,-99999,-99999 43427,44970,44935,14,140,610,792,813,2542,730,-622.1,-25.57,-611.34,405.39,-99999,-99999,-99999 44977,45892,45864,15,170,531,784,839,3153,735,-644.67,-14.98,-636.72,408.69,-99999,-99999,-99999 45898,46447,46419,16,170,531,788,822,3124,716,-640.2,6.02,-637.82,407.48,-99999,-99999,-99999 46458,46680,46652,17,170,531,788,857,3165,720,-649.27,-4.88,-644,409.91,-99999,-99999,-99999 46691,48300,48266,18,140,610,799,856,2535,762,-627.31,-24.86,-616.74,405.34,-99999,-99999,-99999 48311,50214,50179,19,140,610,786,844,2494,733,-623.34,-3.24,-618.5,405.32,-99999,-99999,-99999 50225,51123,51094,20,170,531,788,870,3131,719,-636.5,8.84,-634.87,406.72,-99999,-99999,-99999 51134,51631,51603,21,170,531,794,862,3093,723,-652.21,-1.33,-647.88,408.45,-99999,-99999,-99999 51642,52039,52011,22,170,531,788,876,3181,727,-630.69,-11.97,-623.54,406.12,-99999,-99999,-99999 52379,53754,53705,23,110,670,744,806,1833,729,-615.24,-15.74,-607.09,404.34,-99999,-99999,-99999 53765,54685,54656,24,170,531,746,858,3161,718,-629.48,4.54,-626.71,406.35,-99999,-99999,-99999 54696,55142,55114,25,170,531,798,855,3115,755,-99999,-99999,-99999,-99999,-99999,-99999,-99999 55153,55948,55920,26,170,531,793,871,3225,729,-630.39,-13.5,-622.83,406.2,-99999,-99999,-99999 55959,57236,57188,27,110,670,794,803,1830,728,-630.2,-28.42,-618.68,405.36,-99999,-99999,-99999 57247,58072,58041,28,170,531,771,850,3178,716,-624.51,-4.5,-619.34,405.73,-99999,-99999,-99999 58083,58681,58653,29,170,531,797,854,3144,717,-668.33,-9.14,-661.93,409.54,-99999,-99999,-99999 58692,59224,59196,30,170,531,794,869,3229,727,-624.98,-16.8,-616.54,405.55,-99999,-99999,-99999 59235,60729,60694,31,110,670,795,805,1825,737,-99999,-99999,-99999,-99999,-99999,-99999,-99999 60740,61835,61807,32,170,531,766,889,3210,730,-99999,-99999,-99999,-99999,-99999,-99999,-99999