51,1001 Stephens, Britton National Center for Atmospheric Research Medusa Whole Air Flask Sampler ATom 1,1 2016,8,12,2018,11,27 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 79224,80521,80488,1,200,481,751,757,2647,739,-597.61,38.25,-603.78,400.97,-8.385,0.882,-99999 80528,81564,81457,2,70,720,788,692,726,744,-581.92,83.78,-600.16,401.36,-8.406,1.253,-99999 81570,82181,82061,3,70,720,749,690,712,743,-578.23,51.3,-587.86,401.75,-8.557,0.844,-99999 82188,83686,83641,4,200,481,754,749,2582,721,-610.13,32.18,-614.69,401.15,-8.428,1.228,-99999 83692,84021,83984,5,199,481,784,756,2607,728,-595.86,40.4,-602.6,401.14,-8.366,1.267,-99999 84027,85066,84965,6,70,720,784,690,709,744,-593.78,29.78,-597.7,401.84,-8.449,0.999,-99999 85073,85818,85693,7,70,720,748,688,694,741,-597.26,29.28,-601.05,401.69,-8.442,-0.636,-99999 85824,86739,86704,8,200,481,752,742,2567,720,-616.83,26.69,-619.93,401.23,-8.451,-0.1,-99999 86745,87091,87057,9,200,481,783,749,2607,725,-598.3,47.8,-607,400.97,-8.449,1.133,-99999 87097,88470,88350,10,70,720,780,686,698,737,-585.78,54.49,-596.25,401.78,-8.451,0.905,-99999 88476,89941,89809,11,70,720,744,686,664,736,-595.19,33.01,-599.97,401.44,-8.43,0.806,-99999 89948,90733,90698,12,200,481,749,738,2535,717,-612.86,28.96,-616.56,401.41,-99999,-99999,-99999 90739,91072,91038,13,200,481,778,746,2582,723,-590.94,42.36,-598.2,400.93,-8.375,1.145,-99999 91078,92626,92500,14,70,720,777,686,687,733,-574.95,39.26,-581.39,401.97,-8.453,1.061,-99999 92633,94531,94396,15,70,720,740,684,654,735,-580.86,46.24,-589.15,401.96,-8.452,1.095,-99999 94536,97381,97244,16,70,720,748,682,655,737,-551.9,88.21,-99999,401.05,-99999,-99999,-99999 97392,98266,98132,17,70,720,744,685,656,726,-590.75,42.07,-597.93,401.36,-8.456,1.18,-99999 98277,99151,99113,18,200,481,745,810,2520,761,-604.56,15.9,-604.8,401.24,-8.388,1.324,-99999 99162,99521,99486,19,200,481,789,801,2526,727,-604.69,29.2,-608.46,401.14,-8.425,1.203,-99999 99532,100996,100867,20,70,720,788,688,672,726,-571.21,18.45,-99999,401.31,-8.388,0.961,-99999 101007,102605,102470,21,70,720,742,688,651,727,-596.45,39.5,-602.95,401.18,-8.367,1.305,-99999 102616,103651,103615,22,200,481,746,786,2513,717,-606.51,24.73,-609.09,401.47,-8.414,1.26,-99999 103662,104013,103978,23,200,480,788,787,2549,715,-600,42.46,-607.28,401.34,-8.295,1.299,-99999 104024,104706,104586,24,70,719,787,688,669,728,-590.77,35.42,-596.19,401.2,-8.422,1.014,-99999 104717,106531,106379,25,60,729,737,686,519,730,-595.7,-7.01,-589.86,401.91,-99999,-99999,-99999 106542,107641,107465,26,60,729,740,684,499,729,-574.15,58.07,-585.57,401.91,-8.454,0.801,-99999 107652,108821,108642,27,60,729,747,683,494,728,-594.52,6.16,-592.18,402.05,-8.447,0.967,-99999 108832,110685,110521,28,70,720,747,686,653,-99999,-99999,-99999,-99999,-99999,-99999,-99999,-99999 110696,111631,111596,29,200,480,744,775,2539,716,-604.64,21.78,-606.44,401.21,-8.4,1.33,-99999 111642,111956,111921,30,200,481,788,782,2547,717,-600.68,33.75,-605.65,401.22,-8.386,1.201,-99999 111967,115322,115268,31,200,480,787,786,2528,719,-605.06,23.92,-607.43,401.18,-99999,-99999,-99999 115333,115641,115606,32,200,480,789,811,2527,743,-610.27,6.08,-607.9,401.45,-8.423,0.991,-99999