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CarbonTracker-Lagrange South America OCO-2 Vertical Profile of Footprints V1 (CMS_CTL_SA_OCO2_FOOTPRINTS)

Metadata Updated: December 7, 2023

This data set provides Weather Research and Forecasting (WRF) Stochastic Time-Inverted Lagrangian Transport (STILT) particle trajectory data products for particle receptors co-located with atmospheric column observations from the OCO-2 satellite. Meteorological fields from the WRF model are used to drive STILT. STILT applies a Lagrangian particle dispersion model backwards in time from a measurement location (the "receptor" location), to create the adjoint of the transport model in the form of a "footprint" field. The footprint, with units of mixing ratio per surface flux, quantifies the influence of upwind surface fluxes on greenhouse gas concentrations measured at the receptor and is computed by counting the number of particles in a surface-influenced volume and the time spent in that volume. For each column observation location, the receptors are located at 14 discrete vertical levels throughout the atmospheric column. The CMS program is designed to make significant contributions in characterizing, quantifying, understanding, and predicting the evolution of global carbon sources and sinks through improved monitoring of carbon stocks and fluxes. The System uses NASA observations and modeling/analysis capabilities to establish the accuracy, quantitative uncertainties, and utility of products for supporting national and international policy, regulatory, and management activities. CMS data products are designed to inform near-term policy development and planning.

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.

Downloads & Resources


Metadata Created Date May 30, 2023
Metadata Updated Date December 7, 2023

Metadata Source

Harvested from NASA Data.json

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Additional Metadata

Resource Type Dataset
Metadata Created Date May 30, 2023
Metadata Updated Date December 7, 2023
Identifier C2467880659-GES_DISC
Data First Published 2015-08-22
Language en-US
Data Last Modified 2016-05-31
Category CMS, geospatial
Public Access Level public
Bureau Code 026:00
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Citation Andrews, Arlyn; Trudeau, Michael; Mountain, Marikate. 2022-09-15. CMS_CTL_SA_OCO2_FOOTPRINTS. Version 1. CarbonTracker-Lagrange South America OCO-2 Vertical Profile of Footprints. Greenbelt, MD, USA. Archived by National Aeronautics and Space Administration, U.S. Government, Goddard Earth Sciences Data and Information Services Center (GES DISC). Digital Science Data.
Creator Andrews, Arlyn; Trudeau, Michael; Mountain, Marikate
Data Presentation Form Digital Science Data
Graphic Preview File
Harvest Object Id 627f5f96-088b-4d81-9917-3d5de3baf720
Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
Harvest Source Title NASA Data.json
Homepage URL
Metadata Type geospatial
Old Spatial -84.5 -54.5 -15.5 14.5
Program Code 026:001
Release Place Greenbelt, MD, USA
Source Datajson Identifier True
Source Hash fb54552ec4086f67cde0ed63bb6d6f8e0b3914f4f88b32f5989b58d9e1b33410
Source Schema Version 1.1
Temporal 2015-08-22T16:00:00Z/2016-05-31T18:00:00Z

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