52,1001 Stephens, Britton National Center for Atmospheric Research Medusa Whole Air Flask Sampler ATom 1,1 2016,8,8,2018,11,27 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 22 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: R4 R4: updated 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 70562,70969,70937,1,200,481,754,795,2734,746,-99999,-99999,-99999,-99999,-99999,-99999,-99999 70975,72453,72363,2,81,710,766,706,908,725,-583.88,27.06,-587.08,403.43,-8.48,0.769,-99999 72459,73376,73321,3,200,481,760,779,2635,726,-584.89,31.03,-589.14,403.12,-8.477,1.077,-99999 73383,74746,74712,4,200,481,787,774,2584,725,-99999,-99999,-99999,-99999,-99999,-99999,-99999 74752,75186,75152,5,200,481,792,782,2643,730,-587.25,36.19,-592.87,402.79,-8.476,0.987,-99999 75193,76111,76039,6,80,710,790,703,887,725,-573.69,60.17,-585.67,403.21,-8.612,0.439,-99999 76117,77811,77676,7,60,740,754,704,558,732,-618.81,-100.15,-588.27,403.3,-8.508,0.222,-99999 77817,79556,79390,8,60,740,759,700,528,733,-99999,-99999,-99999,-99999,-99999,-99999,-99999 79562,80188,80152,9,200,481,762,759,2540,721,-99999,-99999,-99999,-99999,-99999,-99999,-99999 80194,80803,80769,10,200,481,782,765,2611,723,-99999,-99999,-99999,-99999,-99999,-99999,-99999 80810,82413,82294,11,70,720,776,692,695,724,-99999,-99999,-99999,-99999,-99999,-99999,-99999 82419,82966,82844,12,70,720,748,690,678,722,-595.23,11.11,-594.2,401.99,-8.872,0.599,-99999 82972,83766,83730,13,200,481,749,760,2536,727,-611.69,0.53,-607.85,401.25,-8.488,1.035,-99999 83772,84198,84163,14,200,480,784,763,2592,751,-99999,-99999,-99999,-99999,-99999,-99999,-99999 84205,85548,85432,15,70,720,779,690,688,754,-99999,-99999,-99999,-99999,-99999,-99999,-99999 85554,86271,86142,16,70,720,745,688,669,727,-595.56,9.2,-594.02,401.37,-8.542,-1.258,-99999 86282,86942,86903,17,200,481,746,777,2518,706,-615.22,13.34,-614.78,401.14,-8.441,1.257,-99999 86953,87326,87291,18,200,480,791,816,2543,762,-604.42,11.9,-603.6,401.61,-8.467,1.184,-99999 87337,87754,87719,19,199,480,790,801,2494,719,-593,25.29,-595.73,402.36,-8.474,0.873,-99999 87765,88961,88856,20,60,739,783,698,539,742,-568.55,21.23,-99999,401,-8.443,0.885,-99999 88972,89641,89484,21,60,740,760,699,523,739,-558.29,51.03,-99999,400.88,-8.788,0.496,-99999 89652,90306,90148,22,60,740,758,698,519,733,-571.86,16.89,-99999,401.1,-8.836,0.476,-99999 90317,90688,90647,23,200,481,757,782,2495,707,-593.56,35.36,-598.96,402.12,-8.464,1.085,-99999 90699,91102,91067,24,200,481,784,783,2534,712,-605.25,17.18,-605.83,401.56,-8.434,1.077,-99999 91113,91531,91496,25,200,481,791,782,2538,710,-605.55,10.56,-604.37,401.68,-99999,-99999,-99999 91542,91934,91899,26,200,481,790,782,2539,711,-617.26,14.53,-617.14,401.98,-99999,-99999,-99999 91945,92183,92149,27,200,481,791,782,2550,712,-598.38,26.03,-601.31,401.44,-99999,-99999,-99999 92194,92521,92487,28,200,481,789,784,2571,713,-601.52,30.87,-605.73,401.48,-99999,-99999,-99999 92532,92781,92747,29,200,481,790,786,2572,715,-596.44,43.71,-604.06,401.47,-99999,-99999,-99999 92792,93114,93080,30,200,481,792,790,2570,713,-589.92,41.51,-596.95,402.18,-99999,-99999,-99999 93125,93425,93391,31,200,481,792,798,2570,-99999,-99999,-99999,-99999,-99999,-99999,-99999,-99999 93436,93861,93826,32,200,481,796,819,2550,745,-600.86,30.63,-605.01,401.32,-99999,-99999,-99999