50,1001 Stephens, Britton National Center for Atmospheric Research Medusa Whole Air Flask Sampler ATom 1,1 2017,1,29,2018,11,27 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 63223,64311,64285,1,170,531,710,762,3322,747,-621.08,28.22,-624.59,406.12,-99999,-99999,-99999 64317,64821,64794,2,170,531,802,762,3270,745,-629.35,18.53,-630.29,406.37,-99999,-99999,-99999 64827,66872,66845,3,173,531,789,757,3268,737,-623.58,7.39,-621.56,405.67,-8.605,0.782,-99999 66879,67573,67546,4,170,531,797,753,3218,728,-622.04,8.09,-620.21,405.79,-8.63,0.877,-99999 67579,70364,70336,5,170,531,789,752,3214,729,-634.67,-0.71,-630.5,406.48,-8.711,0.485,-99999 70370,70780,70752,6,170,531,784,743,3153,725,-624.85,9.01,-623.26,406.03,-8.649,0.861,-99999 70786,70937,70910,7,170,531,778,735,3150,722,-624.75,9.22,-623.22,406.07,-8.73,0.812,-99999 70943,71108,71081,8,170,531,779,735,3146,720,-636.9,9.84,-635.53,407.17,-8.732,0.644,-99999 71115,71465,71437,9,170,531,781,738,3144,743,-99999,-99999,-99999,-99999,-99999,-99999,-99999 71472,71942,71914,10,170,531,786,740,3177,725,-638.62,2.09,-635.2,407.09,-8.709,0.744,-99999 71948,73185,73158,11,167,531,785,753,3229,729,-637.34,-2.98,-632.57,406.6,-8.694,0.698,-99999 73191,74632,74599,12,140,610,767,721,2491,727,-660.01,9.41,-658.53,409.14,-8.85,0.295,-99999 74638,75100,75072,13,170,531,772,740,3153,724,-672.73,4.2,-669.87,409.95,-8.913,-0.056,-99999 75107,76173,76146,14,170,531,782,751,3252,732,-660.03,3.76,-657.05,408.46,-8.809,0.115,-99999 76180,77201,77166,15,140,610,788,734,2538,737,-599.02,-15.51,-592.81,402.51,-8.532,1.023,-99999 77207,78174,78146,16,170,531,780,739,3170,723,-674.86,-1.54,-670.47,411.17,-99999,-99999,-99999 78185,78620,78592,17,170,531,792,777,3150,748,-99999,-99999,-99999,-99999,-99999,-99999,-99999 78631,78964,78936,18,170,531,797,816,3181,776,-668.29,14.66,-668.2,411,-8.925,0.076,-99999 78975,79972,79944,19,170,531,798,810,3196,743,-638.35,1.5,-634.77,407.6,-8.757,0.429,-99999 79983,80505,80477,20,170,531,802,797,3171,727,-670.96,5.91,-668.55,410.78,-8.974,-0.12,-99999 80516,81659,81631,21,170,531,804,790,3146,749,-99999,-99999,-99999,-99999,-99999,-99999,-99999 81670,82041,82013,22,170,531,798,797,3184,734,-671.15,7.1,-669.05,410.83,-8.967,-0.266,-99999 82052,83573,83543,23,141,610,795,757,2518,736,-594.96,-31.24,-587.96,401.47,-8.527,0.839,-99999 83584,85599,85564,24,140,610,797,751,2502,729,-590.22,-32.84,-584.65,401.11,-99999,-99999,-99999 85610,88635,88596,25,170,531,776,780,3163,728,-664.79,6.25,-662.47,410.12,-99999,-99999,-99999 88646,89756,89728,26,170,531,794,780,3160,728,-667.63,9.57,-666.19,411.47,-99999,-99999,-99999 89767,90105,90077,27,170,531,793,778,3170,726,-667.45,2.55,-664.15,410.08,-99999,-99999,-99999 90116,92461,92433,28,170,531,795,781,3184,729,-672.67,10.5,-671.48,411.95,-9.009,-0.339,-99999 92472,93616,93588,29,170,531,797,784,3201,729,-597.77,0.24,-595.74,402.69,-99999,-99999,-99999 93627,94320,94275,30,110,670,794,724,1838,733,-587.3,-45.53,-581.55,399.87,-99999,-99999,-99999 94331,96123,96074,31,110,670,768,727,1824,736,-583.04,-64.5,-579.06,399.24,-99999,-99999,-99999 96134,97404,97355,32,110,670,768,729,1802,739,-654.03,6.1,-651.67,408.74,-99999,-99999,-99999