49,1001
Stephens, Britton
National Center for Atmospheric Research
Medusa Whole Air Flask Sampler
ATom
1,1
2017,2,19,2017,11,20
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
58236,60273,60246,1,-99999,3303,170,530,-99999,760,-647.04,11.23,-646.04,407.39,758.8,833.4,-99999
60279,61201,61170,2,-99999,3289,170,531,-99999,759,-606.32,-8.52,-603.65,402.75,781.4,836.8,-99999
61589,62731,62704,3,-99999,3270,170,531,-99999,750,-604.46,-12.45,-600.91,402.63,731.7,831.3,-99999
62738,63222,63195,4,-99999,3241,170,530,-99999,746,-668.92,13.17,-668.9,409.57,781.5,831.3,-99999
63228,64196,64169,5,-99999,3233,170,531,-99999,748,-675.65,32.24,-680.22,412.2,780.4,830.4,-99999
64202,64351,64324,6,-99999,3236,170,530,-99999,752,-677.97,45.43,-686.04,411.2,777.8,830.4,-99999
64357,64890,64863,7,-99999,3262,170,531,-99999,748,-666.11,17.99,-666.9,408.52,775.7,826.6,-99999
64896,66859,66824,8,-99999,2527,140,610,-99999,750,-602.31,-10.48,-601.07,401.42,777.3,801.8,-99999
66866,68152,68122,9,-99999,3201,170,531,-99999,745,-678.34,22.04,-680.21,410.17,766.4,823.7,-99999
68159,68716,68689,10,-99999,3225,170,531,-99999,745,-715.88,24.37,-718.37,419.09,776.5,821.2,-99999
68722,69072,69045,11,-99999,3261,170,530,-99999,751,-673.51,17.2,-674.09,410.03,774.6,830.1,-99999
69078,71111,71076,12,-99999,2533,140,610,-99999,748,-598.08,-14.39,-595.41,401.5,779.7,803.5,-99999
71117,72981,72953,13,-99999,3262,170,531,-99999,750,-623.7,-6.79,-619.09,404.63,767.1,830.9,-99999
72988,73595,73568,14,-99999,3263,170,531,-99999,749,-618.31,-5.77,-613.97,403.9,778.8,829.6,-99999
73602,73822,73795,15,-99999,3254,170,531,-99999,761,-649.48,14.06,-649.23,407.65,780.8,840,-99999
73828,74397,74370,16,-99999,3228,170,531,-99999,745,-683.19,21.23,-684.84,411.3,780.5,823.5,-99999
74408,75741,75714,17,-99999,3206,170,531,-99999,738,-685.88,13.25,-685.42,412.12,789.9,851.4,-99999
75752,75953,75925,18,-99999,3197,170,531,-99999,772,-680.24,13.95,-679.96,412.42,789.1,883.5,-99999
75964,76281,76253,19,-99999,3207,170,530,-99999,748,-681.84,17.7,-682.56,411.58,791.5,874.5,-99999
76292,77148,77120,20,-99999,3214,170,531,-99999,739,-642.29,14.31,-642.11,407.18,792.7,873.8,-99999
77159,77858,77830,21,-99999,3184,170,531,-99999,739,-676.34,20.3,-677.75,411.21,797.5,864,-99999
77869,78286,78258,22,-99999,3184,170,531,-99999,740,-682.79,20.32,-684.2,411.71,793,864.1,-99999
78297,79504,79476,23,-99999,3197,170,530,-99999,735,-679.59,17.77,-680.32,411.26,791.1,862.5,-99999
79515,80149,80122,24,-99999,3225,170,531,-99999,736,-644.28,17.91,-645.05,406.52,793.4,864.9,-99999
80160,81394,81351,25,-99999,1796,110,670,-99999,741,-605.26,-25.99,-598.89,401.51,791.5,795.7,-99999
81405,82045,82014,26,-99999,3196,170,531,-99999,740,-664.94,14.25,-664.74,409.22,767.8,861.2,-99999
82056,83091,83063,27,-99999,3165,170,531,-99999,732,-682.42,16.04,-682.7,411.36,789.6,851.4,-99999
83102,83421,83393,28,-99999,3181,170,531,-99999,723,-710.18,23.66,-712.48,416.75,787.6,847.3,-99999
83432,83604,83577,29,-99999,3172,170,531,-99999,729,-681.12,14.48,-680.98,411.23,789,854.7,-99999
83615,83982,83954,30,-99999,3199,170,531,-99999,735,-666.7,7.9,-664.82,409.02,791.2,861.5,-99999
83993,84835,84807,31,-99999,3214,170,531,-99999,740,-648.32,13.82,-648.01,407.04,792,866.9,-99999
84846,85407,85379,32,-99999,3189,170,531,-99999,712,-669.99,5.02,-667.34,409.77,791.1,882.2,-99999