49,1001
Stephens, Britton
National Center for Atmospheric Research
Medusa Whole Air Flask Sampler
ATom
1,1
2016,8,12,2017,6,9
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
79224,80521,80487,1,200,481,751,757,2647,739,-615.46,38.25,-99999,400.97,-99999,-99999,-99999
80528,81564,81457,2,70,720,788,692,726,744,-599.1,83.78,-99999,401.36,-99999,-99999,-99999
81570,82181,82061,3,70,720,749,690,712,743,-595.18,51.3,-99999,401.75,-99999,-99999,-99999
82188,83686,83641,4,200,481,754,749,2582,721,-628.46,32.18,-99999,401.15,-99999,-99999,-99999
83692,84021,83984,5,199,481,784,756,2607,728,-613.56,40.4,-99999,401.14,-99999,-99999,-99999
84027,85066,84965,6,70,720,784,690,709,744,-611.4,29.78,-99999,401.84,-99999,-99999,-99999
85073,85818,85693,7,70,720,748,688,694,741,-615.1,29.28,-99999,401.69,-99999,-99999,-99999
85824,86739,86704,8,200,481,752,742,2567,720,-635.51,26.69,-99999,401.23,-99999,-99999,-99999
86745,87091,87057,9,200,481,783,749,2607,725,-616.18,47.8,-99999,400.97,-99999,-99999,-99999
87097,88470,88350,10,70,720,780,686,698,737,-603.13,54.49,-99999,401.78,-99999,-99999,-99999
88476,89941,89809,11,70,720,744,686,664,736,-612.87,33.01,-99999,401.44,-99999,-99999,-99999
89948,90733,90698,12,200,481,749,738,2535,717,-631.3,28.96,-99999,401.41,-99999,-99999,-99999
90739,91072,91038,13,200,481,778,746,2582,723,-608.43,42.36,-99999,400.93,-99999,-99999,-99999
91078,92626,92500,14,70,720,777,686,687,733,-591.76,39.26,-99999,401.97,-99999,-99999,-99999
92633,94531,94396,15,70,720,740,684,654,735,-597.99,46.24,-99999,401.96,-99999,-99999,-99999
94536,97381,97244,16,70,720,748,682,655,737,-567.71,88.21,-99999,401.05,-99999,-99999,-99999
97392,98266,98132,17,70,720,744,685,656,726,-608.3,42.07,-99999,401.36,-99999,-99999,-99999
98277,99151,99113,18,200,481,745,810,2520,761,-622.64,15.9,-99999,401.24,-99999,-99999,-99999
99162,99521,99486,19,200,481,789,801,2526,727,-622.78,29.2,-99999,401.14,-99999,-99999,-99999
99532,100996,100867,20,70,720,788,688,672,726,-587.85,18.45,-99999,401.31,-99999,-99999,-99999
101007,102605,102470,21,70,720,742,688,651,727,-614.18,39.5,-99999,401.18,-99999,-99999,-99999
102616,103651,103615,22,200,481,746,786,2513,717,-624.68,24.73,-99999,401.47,-99999,-99999,-99999
103662,104013,103978,23,200,480,788,787,2549,715,-617.95,42.46,-99999,401.34,-99999,-99999,-99999
104024,104706,104586,24,70,719,787,688,669,728,-608.33,35.42,-99999,401.2,-99999,-99999,-99999
104717,106531,106379,25,60,729,737,686,519,730,-613.48,-7.01,-99999,401.91,-99999,-99999,-99999
106542,107641,107465,26,60,729,740,684,499,729,-590.99,58.07,-99999,401.91,-99999,-99999,-99999
107652,108821,108642,27,60,729,747,683,494,728,-612.17,6.16,-99999,402.05,-99999,-99999,-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,-622.8,21.78,-99999,401.21,-99999,-99999,-99999
111642,111956,111921,30,200,481,788,782,2547,717,-618.67,33.75,-99999,401.22,-99999,-99999,-99999
111967,115322,115268,31,200,480,787,786,2528,719,-623.23,23.92,-99999,401.18,-99999,-99999,-99999
115333,115641,115606,32,200,480,789,811,2527,743,-628.6,6.08,-99999,401.45,-99999,-99999,-99999