51,1001 Stephens, Britton National Center for Atmospheric Research Medusa Whole Air Flask Sampler ATom 1,1 2016,8,15,2018,11,27 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 21 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: R3 R3: updated 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 37778,38005,37897,1,7,482,454,421,94,729,-99999,-99999,-99999,-99999,-99999,-99999,-99999 38011,40025,39915,2,70,720,461,688,704,748,-557.97,150.75,-593.98,402.04,-8.433,0.619,-99999 40031,40573,40452,3,70,720,746,688,687,748,-578.51,106.7,-602.83,401.75,-8.753,0.675,-99999 40580,41431,41396,4,200,481,749,753,2573,731,-610.33,29.84,-614.27,401.55,-8.424,1.008,-99999 41437,41791,41757,5,200,481,783,757,2591,741,-597.93,54.99,-608.54,401.44,-99999,-99999,-99999 41797,42818,42728,6,90,700,780,695,978,753,-584.54,47.26,-593.1,401.87,-99999,-99999,-99999 42824,43792,43700,7,90,700,748,693,968,746,-588,36.28,-593.64,401.97,-99999,-99999,-99999 43798,44816,44781,8,200,481,753,747,2559,727,-608.72,31.79,-613.17,401.78,-99999,-99999,-99999 44823,45199,45165,9,200,481,778,752,2584,735,-596.43,54.62,-606.94,401.47,-99999,-99999,-99999 45206,50031,49933,10,80,710,780,685,817,740,-583.81,58.18,-595.26,402.47,-99999,-99999,-99999 50037,51657,51548,11,80,710,745,687,820,-99999,-99999,-99999,-99999,-99999,-99999,-99999,-99999 51663,52665,52627,12,200,481,752,749,2582,732,-598.93,36.98,-604.76,400.99,-99999,-99999,-99999 52671,53031,52997,13,200,481,781,755,2596,735,-583.81,68.16,-597.91,402.04,-99999,-99999,-99999 53038,55052,54965,14,80,710,777,690,849,739,-595.81,-7.45,-589.86,403.21,-99999,-99999,-99999 55059,56825,56718,15,80,710,746,688,823,736,-593.9,31.46,-598.27,403.01,-99999,-99999,-99999 56830,57856,57821,16,200,481,749,746,2528,722,-597.92,38.56,-604.17,401.46,-99999,-99999,-99999 57867,58221,58187,17,200,481,788,791,2591,720,-588.61,43.84,-596.26,401.87,-99999,-99999,-99999 58232,60208,60137,18,70,720,796,690,709,731,-571.66,61.55,-584.01,402.67,-99999,-99999,-99999 60219,60760,60640,19,70,720,752,691,690,728,-585.33,39.88,-591.93,402.93,-99999,-99999,-99999 60771,61726,61690,20,200,481,749,799,2508,714,-588.38,33.3,-593.23,403,-99999,-99999,-99999 61737,62227,62192,21,200,481,788,797,2534,721,-595.92,36.38,-601.59,403.31,-99999,-99999,-99999 62238,62530,62496,22,200,481,791,802,2587,725,-589.03,43.7,-596.64,403.07,-99999,-99999,-99999 62541,64444,64349,23,80,710,800,696,866,728,-564.15,75.17,-580.11,401.78,-99999,-99999,-99999 64455,64951,64892,24,169,561,749,758,2067,715,-570.36,53.72,-580.63,401.44,-99999,-99999,-99999 64962,65460,65417,25,170,561,771,757,2074,713,-584.57,56.64,-595.62,403.21,-99999,-99999,-99999 65471,66196,66132,26,80,710,769,694,837,725,-584.13,14.26,-583.93,401.67,-99999,-99999,-99999 66207,67130,67024,27,80,710,747,695,843,724,-583.38,19.1,-584.47,401.83,-99999,-99999,-99999 67141,67619,67518,28,80,710,746,694,839,723,-578.2,34.4,-583.35,402.23,-99999,-99999,-99999 67630,68336,68297,29,200,481,747,782,2529,706,-599.85,21.54,-601.58,403.15,-99999,-99999,-99999 68347,68544,68510,30,200,481,786,794,2574,715,-591.98,33.1,-596.78,403.4,-99999,-99999,-99999 68555,69966,69843,31,70,720,792,692,709,723,-570.85,80.62,-588.26,402.91,-99999,-99999,-99999 69977,70486,70416,32,186,507,746,806,2349,733,-581.55,40.94,-588.43,401.43,-99999,-99999,-99999