52,1001 Stephens, Britton National Center for Atmospheric Research Medusa Whole Air Flask Sampler ATom 1,1 2016,8,6,2018,11,27 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 65484,65958,65722,1,208,401,761,1858,6,745,-99999,-99999,-99999,-99999,-99999,-99999,-99999 65965,66871,66810,2,90,700,927,707,1024,734,-99999,-99999,-99999,-99999,-99999,-99999,-99999 66877,67903,67815,3,90,700,759,705,1004,739,-99999,-99999,-99999,-99999,-99999,-99999,-99999 67909,68336,68249,4,90,700,755,703,993,714,-584.65,46.21,-592.93,403.39,-8.687,0.408,-99999 68342,69072,69037,5,200,481,758,767,2541,716,-577.04,10.13,-575.75,401.29,-8.362,0.619,-99999 69079,69476,69442,6,200,481,780,776,2638,725,-587.25,44.45,-595.06,403.27,-8.469,0.929,-99999 69483,71051,70977,7,90,700,788,703,1011,721,-588.72,30.9,-592.94,403.1,-8.46,0.556,-99999 71057,71621,71533,8,90,700,758,702,1004,725,-631.79,47.49,-640.41,403.29,-99999,-99999,-99999 71627,72521,72481,9,200,481,756,762,2564,713,-581.05,35.99,-586.62,402.28,-8.631,0.517,-99999 72527,72895,72861,10,200,481,778,768,2630,719,-601.05,33.08,-605.85,403.23,-8.462,0.886,-99999 72902,74491,74411,11,90,700,778,704,1008,720,-588.74,37.73,-594.77,403.04,-8.471,0.581,-99999 74497,75371,75281,12,90,700,757,700,992,715,-584.8,46.3,-593.1,403.37,-8.466,0.946,-99999 75377,76054,76019,13,200,481,753,764,2569,715,-590.78,29.87,-594.72,402.98,-8.454,0.869,-99999 76060,76532,76497,14,200,481,777,770,2614,722,-599.84,32,-604.35,403.21,-8.454,1.026,-99999 76538,77915,77832,15,88,700,784,700,991,716,-582.63,61.41,-594.94,403.45,-8.445,0.889,-99999 77921,78593,78504,16,90,700,755,701,1006,728,-99999,-99999,-99999,-99999,-99999,-99999,-99999 78604,79617,79526,17,90,700,755,699,975,716,-588.9,32.46,-593.53,403.23,-8.486,1.084,-99999 79628,80069,80034,18,200,481,753,829,2572,764,-589.58,43.72,-597.2,403.35,-8.453,0.797,-99999 80080,81792,81692,19,70,720,813,697,732,722,-580.34,42.12,-587.53,403.48,-8.448,0.812,-99999 81803,82446,82327,20,70,720,752,696,720,723,-576.61,54.14,-586.99,403.3,-8.485,0.786,-99999 82457,83344,83302,21,200,481,749,798,2539,709,-604.62,39.63,-611.15,403.46,-8.42,1.248,-99999 83355,83866,83832,22,200,481,783,808,2621,720,-587.5,41.91,-594.64,403.37,-8.473,0.948,-99999 83877,84151,84117,23,200,481,791,800,2608,712,-584.1,54.51,-594.58,403.1,-8.338,0.812,-99999 84162,84754,84720,24,200,481,786,796,2591,712,-588.22,20.51,-589.68,403.4,-99999,-99999,-99999 84765,85256,85222,25,200,481,787,804,2651,748,-99999,-99999,-99999,-99999,-99999,-99999,-99999 85267,85741,85707,26,200,481,791,796,2597,714,-609.55,33.48,-614.45,403.48,-8.435,1.14,-99999 85752,87094,87060,27,200,481,786,796,2613,-99999,-99999,-99999,-99999,-99999,-99999,-99999,-99999 87105,88719,88598,28,70,720,781,696,731,720,-583.65,40.39,-590.38,403.61,-8.45,-0.651,-99999 88730,90391,90353,29,200,481,749,787,2547,703,-595.02,30.23,-599.06,403.08,-9.214,0.01,-99999 90402,92265,92156,30,50,730,781,684,456,717,-573.82,60.31,-585.84,403.5,-8.451,0.649,-99999 92276,93721,93680,31,200,481,742,796,2538,712,-591.9,24.44,-594.4,402.98,-99999,-99999,-99999 93732,94325,94290,32,200,481,784,827,2593,740,-583.59,43.28,-591.09,403.11,-8.455,0.919,-99999