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Description

This dataset provides calculated age of air (AoA) and the argon/nitrogen (Ar/N2) ratio (per meg) from stratospheric flask samples and simultaneous high-frequency measurements of nitrous oxide (N2O), carbon dioxide (CO2), ozone (O3), methane (CH4), and carbon monoxide (CO) compiled from three airborne projects. The trace gases were used to identify 235 flask samples with stratospheric influence collected by the Medusa Whole Air Sampler and to calculate AoA using a new N2O-AoA relationship developed using a Markov Chain Monte Carlo algorithm. The data span a wide range of latitudes poleward of 40 degrees in both the Northern and Southern Hemispheres and cover the period 2009-01-10 to 2018-05-21.

Product Summary

Platforms
NASA DC-8 ,
Models ,
NSF/NCAR GV HIAPER
Instruments
FLASKS ,
Computer
Spatial Extent

N: 84.53 S: -84.51 E: 178.68 W: -179.58

Location
GLOBAL
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
2009-01-10 to 2018-05-21
Data Partner
THE OAK RIDGE NATIONAL LABORATORY (ORNL) DISTRIBUTED ACTIVE ARCHIVE CENTER (DAAC) (ORNL_DAAC)
Concept ID
C2676992776-ORNL_CLOUD
Data State
COMPLETE
Number of Files/Granules
1
Processing Level
3
Published
Updated
Science Keywords
Atmospheric Carbon Dioxide ,
Methane ,
Atmospheric Carbon Monoxide ,
Nitrous Oxide ,
Atmospheric Ozone ,
Trace Gases/Trace Species

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

Birner, B., Chipperfield, M., Morgan, E. J., & Keeling, R. F. (2020). ATom: Age of Air, ArN2 Ratio, and Trace Gases in Stratospheric Samples, 2009-2018 (Version 1). ORNL Distributed Active Archive Center. https://doi.org/10.3334/ORNLDAAC/1788 Date Accessed: 2026-05-02

Documents

Publications Citing This Dataset

Filters
Title Year Author Topic
Correction of Simulation Biases in Stratospheric Methane Concentrations Zhang, Peixuan, Zhang, Yuzhong, Liang, Ruosi Biomass Burning, Halocarbons And Halogens, Trace Gases/Trace Species, Sulfur Compounds, Air Quality, Atmospheric Carbon Monoxide, Atmospheric Ozone, Non-methane Hydrocarbons/Volatile Organic Compounds, Fossil Fuel Burning, Industrial Emissions, Atmospheric Carbon Dioxide, Carbonaceous Aerosols, Methane, Nitrous Oxide
Gravitational separation of ArN2 and age of air in the lowermost stratosphere in airborne observations and a chemical transport model Birner, Benjamin, Chipperfield, Martyn P., Morgan, Eric J., Stephens, Britton B., Linz, Marianna, Feng, Wuhu, Wilson, Chris, Bent, Jonathan D., Wofsy, Steven C., Severinghaus, Jeffrey, Keeling, Ralph F. Atmospheric Carbon Monoxide, Carbonaceous Aerosols, Air Quality, Trace Gases/Trace Species, Non-methane Hydrocarbons/Volatile Organic Compounds, Industrial Emissions, Fossil Fuel Burning, Biomass Burning, Atmospheric Carbon Dioxide, Sulfur Compounds, Halocarbons And Halogens, Atmospheric Ozone, Methane, Nitrous Oxide
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