49,1001
Stephens, Britton
National Center for Atmospheric Research
Medusa Whole Air Flask Sampler
ATom
1,1
2017,1,26,2017,11,20
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 
O2_N2, per meg 
Ar_N2, per meg 
O2_N2_corr, per meg 
CO2, ppm 
d13C_CO2, per mil 
d18O_CO2, per mil 
D14C_CO2, per mil
0
19
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 a altitude-dependent fractionation correction is applied (O2_N2_corr). CO2 is extracted after CO2 and O2/N2 content analysis for later isotope analysis: d13-CO2, d18O-CO2, and radiocarbon (D14C).
REVISION: R1
R1: updated 
R0: final data.
Start_UTC,Stop_UTC,Mean_UTC,position,upstream_pressure,downstream_pressure,bypass_pressure,sample_pressure,flow,flask_pressure,O2_N2,Ar_N2,O2_N2_corr,CO2,d13C_CO2,d18O_CO2,D14C_CO2
61663,62530,62504,1,-99999,3408,170,531,-99999,-99999,-99999,-99999,-99999,-99999,775.3,769.9,-99999
62537,63692,63666,2,-99999,3320,170,531,-99999,749,-632.96,-5.25,-627.59,405.8,810.8,764.3,-99999
63698,69374,69341,3,-99999,2517,140,610,-99999,733,-629.27,-3.28,-624.42,405.3,791.5,723.4,-99999
69380,72676,72641,4,-99999,2511,140,610,-99999,732,-630.69,-1.08,-626.42,405.33,778,724.5,-99999
72682,77837,77802,5,-99999,2506,140,610,-99999,718,-619,-4.61,-613.8,404.03,777.3,724.6,-99999
77843,78389,78359,6,-99999,3182,170,531,-99999,728,-617.7,9.92,-616.35,404.17,771.4,745.3,-99999
78396,78846,78818,7,-99999,3140,170,531,-99999,718,-612.81,9.23,-611.28,404.42,785,733.6,-99999
78852,79471,79443,8,-99999,3122,170,531,-99999,725,-630.43,-9.64,-623.89,404.99,778,732.6,-99999
79477,79811,79783,9,-99999,3145,170,531,-99999,725,-609.13,27.28,-612.39,404.5,780,739.7,-99999
79817,79996,79969,10,-99999,3244,170,531,-99999,733,-610.81,20.41,-612.25,403.87,782.9,748.1,-99999
80002,80254,80227,11,-99999,3256,170,531,-99999,740,-612.21,11.75,-611.35,404.02,792.2,758.1,-99999
80261,81541,81507,12,-99999,2562,140,610,-99999,735,-618.82,3.83,-615.86,404.6,791.1,729.6,-99999
81547,81934,81904,13,-99999,3224,170,531,-99999,731,-613.2,5.55,-610.69,404.05,782.6,751.2,-99999
81940,82427,82399,14,-99999,3150,170,531,-99999,723,-617.14,18.63,-618.1,404.86,787.5,738.9,-99999
82434,83166,83138,15,-99999,3132,170,531,-99999,731,-614.75,20.24,-616.14,404.73,786.3,748.2,-99999
83172,83565,83537,16,-99999,3158,170,531,-99999,720,-618.84,22.02,-620.7,405.17,784,742.1,-99999
83576,84201,84174,17,-99999,3225,170,531,-99999,717,-620.45,8.49,-618.72,405.01,803,792.6,-99999
84212,85411,85365,18,-99999,1897,110,670,-99999,754,-627.88,6.69,-625.68,405.47,796.4,739.6,-99999
85422,86362,86330,19,-99999,3161,170,531,-99999,740,-623.99,11.22,-622.99,406.04,776.1,807.1,-99999
86373,86529,86502,20,-99999,3106,170,531,-99999,722,-638.4,16.24,-638.73,406.66,799.7,793.7,-99999
86540,87031,87003,21,-99999,3104,170,531,-99999,726,-645.31,18.47,-646.23,407.16,791.1,788,-99999
87042,87183,87156,22,-99999,3109,170,531,-99999,730,-638.89,32.86,-643.63,407.29,795.6,789,-99999
87194,87389,87361,23,-99999,3119,170,531,-99999,726,-623.99,13.61,-623.62,405.59,789.6,784.5,-99999
87400,89312,89267,24,-99999,1881,110,670,-99999,737,-612.79,0.74,-609.01,403.95,798.8,732.1,-99999
89323,90299,90267,25,-99999,3144,170,531,-99999,725,-629.94,9.96,-628.6,405.98,772.7,783.1,-99999
90310,90485,90457,26,-99999,3127,170,531,-99999,725,-657.56,12.66,-657.02,408.27,794.6,780.1,-99999
90496,90967,90939,27,-99999,3125,170,531,-99999,723,-659.9,15.21,-660.23,408.77,791.2,775.1,-99999
90978,91174,91146,28,-99999,3165,170,531,-99999,-99999,-99999,-99999,-99999,-99999,792.8,785.8,-99999
91185,92433,92406,29,-99999,3219,170,531,-99999,726,-628.46,3.58,-625.43,405.44,800.4,792.4,-99999
92444,93601,93573,30,-99999,3140,170,531,-99999,722,-664.15,6.78,-661.97,408.96,804.9,781.3,-99999
93612,93807,93779,31,-99999,3158,170,531,-99999,732,-659.43,10.55,-658.25,408.32,794.5,793.6,-99999
93818,95482,95436,32,-99999,1858,109,670,-99999,716,-624.14,-11.52,-617.73,404.09,797.5,737.7,-99999