ATom: Simulated Data Stream for Modeling ATom-like Measurements

Metadata Updated: November 12, 2020

This dataset provides a simulated data stream representative of an Atmospheric Tomography mission (ATom) data collection flight and also modeled reactivities for ozone (O3) production and loss and methane (CH4) loss from six global atmospheric chemistry models: CAM, GEOS-Chem, GFDL, GISS-E2.1, GMI, and UCI. The simulated data include concentrations of selected atmospheric trace gases for 14,880 air parcels along a simulated north-south ATom flight path along 180-degrees longitude over the Pacific basin. Each of the six models produced ozone production and loss and methane loss reactivities initialized using the simulated data beginning with five different days in August (8-01, 8-06, 8-11, 8-16, 8-21). Modeled years for each individual model varied from 1997 to 2016.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Dates

Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020

Metadata Source

Harvested from NASA Data.json

Graphic Preview

Direct parcel-by-parcel comparisonof modeled reactivities (a, P-O3; b, L-O3; c, L-CH4; all ppb/day) and photolysis rates (d, J-NO2; e, J-O1D; all /sec) calculated for the 14,880 simulated air parcels. Each point is an average over the 5 simulated dates in August (8/01, 8/06, 8/11, 8/16, 8/21). The 1:1 line is shown (black dashed) for each plot. The reference values (X axis) are the average of 3 similar models (GSFC, GC, UCI) selected by examining the rms differences across all the models (see text). Note that the model points are plotted successively on top of one another and thus the earlier-plotted models may appear less frequent: in order, NCAR (black), GFDL (magenta), GISS (cyan), GC (blue), UCI (red), GSFC (green). (from Prather et al. 2018)

Additional Metadata

Resource Type Dataset
Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020
Publisher ORNL_DAAC
Unique Identifier Unknown
Maintainer
Identifier C1542309013-ORNL_DAAC
Data First Published 2018-08-08
Language en-US
Data Last Modified 2019-04-15
Category ATom, geospatial
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Citation Prather, M.J., C.M. Flynn, A. Fiore, G. Correa, S.A. Strode, S.D. Steenrod, L.T. Murray, and J.-F. Lamarque. 2018. ATom: Simulated Data Stream for Modeling ATom-like Measurements. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1597
Graphic Preview Description Direct parcel-by-parcel comparisonof modeled reactivities (a, P-O3; b, L-O3; c, L-CH4; all ppb/day) and photolysis rates (d, J-NO2; e, J-O1D; all /sec) calculated for the 14,880 simulated air parcels. Each point is an average over the 5 simulated dates in August (8/01, 8/06, 8/11, 8/16, 8/21). The 1:1 line is shown (black dashed) for each plot. The reference values (X axis) are the average of 3 similar models (GSFC, GC, UCI) selected by examining the rms differences across all the models (see text). Note that the model points are plotted successively on top of one another and thus the earlier-plotted models may appear less frequent: in order, NCAR (black), GFDL (magenta), GISS (cyan), GC (blue), UCI (red), GSFC (green). (from Prather et al. 2018)
Graphic Preview File https://daac.ornl.gov/ATOM/guides/ATom_Simulated_Data_Fig1.png
Harvest Object Id bb1313eb-210f-43f2-a1b2-63c22d57595b
Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
Harvest Source Title NASA Data.json
Homepage URL https://doi.org/10.3334/ORNLDAAC/1597
Metadata Type geospatial
Program Code 026:001
Source Datajson Identifier True
Source Hash f20844936976e2db86342b9c7b809e54b0d09687
Source Schema Version 1.1
Spatial 178.9 -59.8 180.0 59.8
Temporal 1997-08-01T00:00:00Z/2016-08-21T23:59:59Z

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