50,1001 Stephens, Britton National Center for Atmospheric Research Medusa Whole Air Flask Sampler ATom 1,1 2017,2,10,2018,11,27 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 67184,68715,68683,1,170,531,768,844,3355,769,-581.44,18.77,-582.44,401.79,-99999,-99999,-99999 68867,72721,72694,2,170,531,755,829,3242,753,-593.83,0.11,-589.88,402.3,-99999,-99999,-99999 72728,73561,73534,3,170,531,798,823,3228,748,-595.89,-0.61,-591.87,402.26,-99999,-99999,-99999 73567,74655,74628,4,170,531,791,827,3237,748,-585.68,2.22,-582.6,401.82,-99999,-99999,-99999 74661,75024,74997,5,170,531,791,823,3193,745,-574.6,15.7,-574.79,401.67,-99999,-99999,-99999 75030,75244,75217,6,170,531,788,820,3191,749,-577.06,25.9,-579.95,401.48,-99999,-99999,-99999 75250,75723,75695,7,170,531,792,815,3198,744,-560.06,18.56,-561,400.38,-99999,-99999,-99999 75730,75967,75940,8,170,531,791,822,3247,750,-576.41,22,-578.27,401.57,-99999,-99999,-99999 75973,76376,76349,9,170,531,795,831,3291,755,-577.52,20.06,-578.86,401.44,-99999,-99999,-99999 76383,79351,79319,10,140,610,802,794,2534,748,-590,2.6,-586.71,401.92,-99999,-99999,-99999 79357,82351,82316,11,140,610,780,798,2519,751,-588.64,-31.47,-582.96,401.14,-99999,-99999,-99999 82357,84121,84088,12,170,531,780,822,3231,749,-574.22,8.12,-572.4,401.32,-99999,-99999,-99999 84128,84409,84382,13,170,531,790,821,3215,746,-567.98,18.55,-568.92,401.02,-99999,-99999,-99999 84415,85076,85048,14,170,531,792,818,3203,743,-555.27,25.73,-558.12,400.05,-99999,-99999,-99999 85083,85371,85344,15,170,531,795,832,3218,760,-560.2,18.21,-561.05,400.45,-99999,-99999,-99999 85377,85641,85614,16,170,531,792,824,3250,748,-566.72,19.1,-567.81,401,-99999,-99999,-99999 85652,87661,87627,17,140,610,802,816,2555,731,-599.56,-17.92,-593.66,402.04,-99999,-99999,-99999 87672,90370,90335,18,140,610,791,834,2514,-99999,-99999,-99999,-99999,-99999,-99999,-99999,-99999 90381,90881,90852,19,170,531,789,873,3197,745,-567.96,14.35,-567.79,401.52,-99999,-99999,-99999 90892,91220,91192,20,170,531,799,863,3169,-99999,-99999,-99999,-99999,-99999,-99999,-99999,-99999 91231,91701,91673,21,170,531,800,859,3170,732,-540.15,31.07,-544.41,400.63,-99999,-99999,-99999 91712,93462,93420,22,110,670,796,792,1804,735,-589.13,-49.29,-581.2,400.76,-99999,-99999,-99999 93473,94108,94068,23,169,532,768,863,3230,735,-582.25,1.92,-581.97,401.86,-99999,-99999,-99999 94119,95137,95110,24,170,531,802,851,3192,732,-557.9,27.44,-561.2,400.84,-99999,-99999,-99999 95148,95289,95262,25,170,531,801,852,3197,732,-552.83,22.32,-554.77,400.98,-99999,-99999,-99999 95300,97246,97201,26,110,670,798,790,1802,736,-598.57,-57.19,-588.86,400.75,-99999,-99999,-99999 97257,98126,98092,27,170,531,767,851,3220,731,-549.46,24.09,-551.87,400.93,-99999,-99999,-99999 98137,98686,98658,28,170,531,801,848,3184,772,-99999,-99999,-99999,-99999,-99999,-99999,-99999 98697,99249,99222,29,170,531,798,859,3243,729,-99999,-99999,-99999,-99999,-99999,-99999,-99999 99260,100897,100849,30,110,670,803,788,1810,753,-99999,-99999,-99999,-99999,-99999,-99999,-99999 100908,102021,101972,31,110,670,770,791,1801,772,-99999,-99999,-99999,-99999,-99999,-99999,-99999 102032,102335,102286,32,110,670,766,796,1798,757,-99999,-99999,-99999,-99999,-99999,-99999,-99999