Imaging · collection · 2018

ATom: Merged Atmospheric Chemistry, Trace Gases, and Aerosols

Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.3334/ornldaac/1581

This dataset provides information on greenhouse gases and human-produced air pollution, including atmospheric concentrations of carbon dioxide (CO2), methane (CH4), tropospheric ozone (O3), and black carbon (BC) aerosols, collected during airborne campaigns conducted by NASA's Atmospheric Tomography (ATom) mission.

Description

This dataset includes merged data from all instruments plus additional data such as numbered profiles and distance flown.

Merged data have been created for seven different sampling intervals. In the case of data obtained over longer time intervals (e.g. flask data), the merge files provide (weighted) averages to match the sampling intervals. ATom deploys an extensive gas and aerosol payload on the NASA DC-8 aircraft for a systematic, global-scale sampling of the atmosphere, profiling continuously from 0.2 to 12 km altitude.

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Flights occurred in each of 4 seasons from 2016 to 2018. Flights originate from the Armstrong Flight Research Center in Palmdale, California, fly north to the western Arctic, south to the South Pacific, east to the Atlantic, north to Greenland, and return to California across central North America. ATom establishes a single, contiguous, global-scale dataset.

This comprehensive dataset will be used to improve the representation of chemically reactive gases and short-lived climate forcers in global models of atmospheric chemistry and climate. Profiles of the reactive gases will also provide critical information for the validation of satellite data, particularly in remote areas where in situ data is lacking. Complete aircraft flight information including, but not limited to, latitude, longitude, and altitude are also provided.

This data release provides results from all instruments on all four ATom flight campaigns.

Topics

Stated by source: Air Quality · Atmospheric Carbon Dioxide · Atmospheric Carbon Monoxide · Atmospheric Ozone · Biomass Burning · Carbonaceous Aerosols · Chemical Ionization Mass Spectrometer · Fossil Fuel Burning · Halocarbons And Halogens · Industrial Emissions · LASER SPECTROMETER · NASA Douglas DC-8 · Non-Methane Hydrocarbons/Volatile Organic Compounds · Particle Analysis by Laser Mass Spectrometry · PHOTOMETERS · SPECTROMETERS · Sulfur Compounds · Trace Gases/Trace Species · Whole Air Sampler
From keywords: Astronomy & Astrophysics · Chemistry · Earth & Environmental Science · Energy · Engineering · Life Sciences · Ocean & Atmospheric Science · Physics
Inferred from text: Atmospheric aerosols 77%

Provenance · 2 source records, 38 field assertions

Source	Key	Last seen	Raw
NASA Earthdata CMR	C2966724160-ORNL_CLOUD	8 d ago	JSON v1
NASA Data Portal	632dad23-0d92-4a1a-86d0-360be6758c08	5 d ago	JSON v1

Field	Assertion	Extractor	Evidence
access_level	source · NASA CMR	connector:nasa_cmr@1.0.0
concepts[field].anzsrc:field:370103	enrichment · NASA CMR	taxonomy-embedding@1.0.0	title+keywords+description (77%)
concepts[field].local:field:astronomy	mapping · data nasa gov	connector:data_nasa_gov@1.0.0
concepts[field].local:field:chemistry	mapping · data nasa gov	connector:data_nasa_gov@1.0.0
concepts[field].local:field:earth-environmental	mapping · data nasa gov	connector:data_nasa_gov@1.0.0
concepts[field].local:field:energy	mapping · data nasa gov	connector:data_nasa_gov@1.0.0
concepts[field].local:field:engineering	mapping · data nasa gov	connector:data_nasa_gov@1.0.0
concepts[field].local:field:life-sciences	mapping · data nasa gov	connector:data_nasa_gov@1.0.0
concepts[field].local:field:ocean-atmospheric	mapping · data nasa gov	connector:data_nasa_gov@1.0.0
concepts[field].local:field:physics	mapping · data nasa gov	connector:data_nasa_gov@1.0.0
concepts[instrument].gcmd_instrument:cims	source · NASA CMR	connector:nasa_cmr@1.0.0
concepts[instrument].gcmd_instrument:laser-spectrometer	source · NASA CMR	connector:nasa_cmr@1.0.0
concepts[instrument].gcmd_instrument:palms	source · NASA CMR	connector:nasa_cmr@1.0.0
concepts[instrument].gcmd_instrument:photometers	source · NASA CMR	connector:nasa_cmr@1.0.0
concepts[instrument].gcmd_instrument:spectrometers	source · NASA CMR	connector:nasa_cmr@1.0.0
concepts[instrument].gcmd_instrument:was	source · NASA CMR	connector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/atmosphere/aerosols/carbonaceous-aerosols	source · NASA CMR	connector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/atmosphere/air-quality	source · NASA CMR	connector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-chemistry/carbon-and-hydrocarbon-compounds/atmospheric-carbon-dioxide	source · NASA CMR	connector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-chemistry/carbon-and-hydrocarbon-compounds/atmospheric-carbon-monoxide	source · NASA CMR	connector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-chemistry/carbon-and-hydrocarbon-compounds/non-methane-hydrocarbons-volatile-organic-compounds	source · NASA CMR	connector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-chemistry/halocarbons-and-halogens	source · NASA CMR	connector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-chemistry/oxygen-compounds/atmospheric-ozone	source · NASA CMR	connector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-chemistry/sulfur-compounds	source · NASA CMR	connector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-chemistry/trace-gases-trace-species	source · NASA CMR	connector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/human-dimensions/environmental-impacts/biomass-burning	source · NASA CMR	connector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/human-dimensions/environmental-impacts/fossil-fuel-burning	source · NASA CMR	connector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/human-dimensions/environmental-impacts/industrial-emissions	source · NASA CMR	connector:nasa_cmr@1.0.0
concepts[platform].gcmd_platform:nasa-dc-8	source · NASA CMR	connector:nasa_cmr@1.0.0
created_date	source · NASA CMR	connector:nasa_cmr@1.0.0
description	source · NASA CMR	connector:nasa_cmr@1.0.0	/umm/Abstract
license_text	source · data nasa gov	connector:data_nasa_gov@1.0.0
publication_date	source · NASA CMR	connector:nasa_cmr@1.0.0
spatial	source · NASA CMR	connector:nasa_cmr@1.0.0	/umm/SpatialExtent
temporal	source · NASA CMR	connector:nasa_cmr@1.0.0	/umm/TemporalExtents
title	source · NASA CMR	connector:nasa_cmr@1.0.0	/umm/EntryTitle
updated_date	source · NASA CMR	connector:nasa_cmr@1.0.0
version_label	source · NASA CMR	connector:nasa_cmr@1.0.0

ATom: Merged Atmospheric Chemistry, Trace Gases, and Aerosols

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