Assessing sources of uncertainty in formaldehyde air mass factors over tropical South America: Implications for top-down isoprene emission estimates: High-Resolution Chemistry Model Simulations and Analysis

The Quantifying the Amazon Isoprene Budget: Reconciling Top-down versus Bottom-up Emission Estimates project produced a unique high resolution model (GEOS-Chem version v8-03-01 - with modifications) for the Amazon, which simulated isoprene emissions and atmospheric chemistry.

A nested-grid version of the GEOS-Chem chemistry transport model, constrained by isoprene emissions from the Model of Emissions of Gases and Aerosols from Nature (MEGAN), and the Lund-Potsdam-Jena General Ecosystem Simulator (LPJ-GUESS) bottom-up inventories, was used to evaluate the impact that surface isoprene emissions have on formaldehyde (HCHO) air-mass factors (AMFs) and vertical column densities (VCDs) over tropical South America during 2006, as observed by the Scanning Imaging Absorption Spectrometer for Atmospheric Chartography (SCIAMACHY) and Ozone Monitoring Instrument (OMI).

Results of this project are presented in the following publication:

Barkley, M. P., T. P. Kurosu, K. Chance, I. De Smedt, M. Van Roozendael, A. Arneth, D. Hagberg,

and A. Guenther: Assessing sources of uncertainty in formaldehyde air mass factors over tropical

South America: Implications for top-down isoprene emission estimates, J. Geophys. Res.,

117, D13304, doi:10.1029/2011JD016827. 2012

and model outputs associated to this project are archived at CEDA.

This was a NERC funded project.

Date (Publication): 2015-12-10T13:48:25

Date (Creation): 2015-12-10T13:48:25

Citation identifier: https://catalogue.ceda.ac.uk/uuid/568b6c1213d64610b97d46c6f6a80402

Citation identifier: NCAS British Atmospheric Data Centre (NCAS BADC) / 568b6c1213d64610b97d46c6f6a80402

Point of contact

Organisation name	Individual name	Electronic mail address	Role
Unavailable	Barkley, Michael	Unavailable	Author
NCAS British Atmospheric Data Centre (NCAS BADC)		badc@rl.ac.uk	Custodian
NCAS British Atmospheric Data Centre (NCAS BADC)		badc@rl.ac.uk	Distributor
Unavailable	Barkley, Michael	Unavailable	Principal investigator
NCAS British Atmospheric Data Centre (NCAS BADC)		badc@rl.ac.uk	pointofContact
NCAS British Atmospheric Data Centre (NCAS BADC)		badc@rl.ac.uk	Publisher

Maintenance and update frequency: Not planned

Update scope: Dataset

Keywords

amazon
isoprene
HCHO
AMF
GEOS-Chem
NERC

GEMET - INSPIRE themes, version 1.0

atmospheric conditions

Access constraints: Other restrictions

Other constraints: Access to these data is available to any registered CEDA user. Please Login or Register for a CEDA account to gain access.

Use constraints: Other restrictions

Other constraints: Under the following licence https://artefacts.ceda.ac.uk/licences/missing_licence.pdf, appropriate use of these data may fall under unstated use. This message is intended as guidance, always read the full licence. When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.

Spatial representation type: Grid

Language: English

Topic category

Climatology, meteorology, atmosphere

Begin date: 2006-01-01T00:00:00

End date: 2006-12-31T00:00:00

Unique resource identifier: WGS 84

Distribution format

Name	Version
Typically GEOS-Chem binary-punch outputs .bpch. Other files are straight binary ending in .bin. Some files are also compressed (.gz)

Distributor contact

Organisation name	Individual name	Electronic mail address	Role
NCAS British Atmospheric Data Centre (NCAS BADC)		badc@rl.ac.uk	Distributor

OnLine resource

Protocol	Linkage	Name
	https://catalogue.ceda.ac.uk/uuid/568b6c1213d64610b97d46c6f6a80402	CEDA Data Catalogue Page

OnLine resource

Protocol	Linkage	Name
	http://data.ceda.ac.uk/badc/nerc-rm2010/data/amazon-isoprene/Barkley.jgr.2012	DOWNLOAD

OnLine resource

Protocol	Linkage	Name
	http://dx.doi.org/10.1029/2011JD016827	Barkley, M. P., T. P. Kurosu, K. Chance, I. De Smedt, M. Van Roozendael, A. Arneth, D. Hagberg, and A. Guenther: Assessing sources of uncertainty in formaldehyde air mass factors over tropical South America: Implications for top-down isoprene emission estimates, J. Geophys. Res., 117, D13304, doi:10.1029/2011JD016827. 2012

Hierarchy level: Dataset

Conformance result

Title: Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services

Date (Publication): 2010-12-08

Statement: Data provided as is by M. Barkley in March 2015.

Metadata

File identifier: 568b6c1213d64610b97d46c6f6a80402 XML

Metadata language: English

Character set: UTF8

Parent identifier: Quantifying the Amazon Isoprene Budget: Reconciling Top-down versus Bottom-up Emission Estimates Project: High-Resolution Chemistry Model data for the Amazon basin.
387ca240c6585dabd158a06b2ce4af4b

Hierarchy level: Dataset

Date stamp: 2025-12-04T03:06:28

Metadata standard name: UK GEMINI

Metadata standard version: 2.3

Metadata author

Organisation name	Individual name	Electronic mail address	Role
NCAS British Atmospheric Data Centre (NCAS BADC)		badc@rl.ac.uk	Point of contact

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