ATom: Observed and GEOS-5 Simulated CO Concentrations with Tagged Tracers for ATom-1

Description

This dataset contains carbon monoxide (CO) observations at 10-second intervals from flights during the ATom-1 campaign in 2016 and simulated CO concentrations from the Goddard Earth Observing System version 5 (GEOS-5) model for the corresponding locations along the ATom flight tracks. The Atmospheric Tomography Mission (ATom) is a NASA Earth Venture Suborbital-2 mission studying the impact of human-produced air pollution on greenhouse gases and on chemically reactive gases in the atmosphere. The airborne observations were collected using the Quantum Cascade Laser System (QCLS) instrument, a high-frequency laser spectroscopy instrument for in situ atmospheric gas sampling. This dataset provides a direct comparison of observational and simulated CO that will be used to inform future atmospheric modeling experiments. The dataset also contains simulated tagged-CO tracer concentrations, which represent the contribution of specific regional sources to the total simulated CO. This dataset contributes to one of the ATom mission objectives to create an observation-based chemical climatology of important atmospheric constituents and their reactivity in the remote troposphere.

Resources

Name Format Description Link
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.3334%2FORNLDAAC%2F1604
21 This link allows direct data access via Earthdata login https://daac.ornl.gov/atom/ATom_CO_GEOS/
33 ATom: Observed versus simulated carbon monoxide concentrations for ATom-1 2016: ATom_CO_GEOS.pdf https://data.ornldaac.earthdata.nasa.gov/public/atom/ATom_CO_GEOS/comp/ATom_CO_GEOS.pdf
21 ORNL DAAC Data Set Documentation https://daac.ornl.gov/ATOM/guides/ATom_CO_GEOS.html
21 Data set Landing Page DOI URL https://doi.org/10.3334/ORNLDAAC/1604
21 USE SERVICE API https://opendap.earthdata.nasa.gov/
34 CO (ppb) from the QCLS observations (left) and GEOS-5 analysis (right) for the ATom-1 circuit including all 11 research flight segments. The GEOS-5 CO is taken from the analysis closest to the mid-point of the flight time and interpolated to the flight track following the longitude, latitude and pressure given in observations. Both model forecast and ATom measurements are averaged into a sample rate of one per 360-second. Data in the troposphere are plotted in a circle; data in the stratosphere are plotted in a diamond (from Strode et al. 2018). https://daac.ornl.gov/ATOM/guides/ATom_CO_GEOS_Fig1.png
21 ATom campaign page https://daac.ornl.gov/ATOM/campaign/
21 The THREDDS location for this Collection. https://thredds.daac.ornl.gov/thredds/catalog/ornldaac/1604/catalog.html

Tags

  • atmosphere
  • atmospheric-chemistry
  • earth-science

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