Quantitative Uncertainty polycyclic aromatic hydrocarbon (PAH) metadata, 2006-2008.
We quantitatively examine the relative importance of uncertainty in emissions and physicochemical properties (including reaction rate constants) to Northern Hemisphere (NH) and Arctic polycyclic aromatic hydrocarbon (PAH) concentrations, using a computationally efficient numerical uncertainty techni...
Main Author: | |
---|---|
Format: | Dataset |
Language: | English |
Published: |
NSF Arctic Data Center
2016
|
Subjects: | |
Online Access: | https://dx.doi.org/10.18739/a20r9m49r https://arcticdata.io/catalog/view/doi:10.18739/A20R9M49R |
id |
ftdatacite:10.18739/a20r9m49r |
---|---|
record_format |
openpolar |
spelling |
ftdatacite:10.18739/a20r9m49r 2023-05-15T15:05:15+02:00 Quantitative Uncertainty polycyclic aromatic hydrocarbon (PAH) metadata, 2006-2008. Thackray, Colin 2016 text/xml https://dx.doi.org/10.18739/a20r9m49r https://arcticdata.io/catalog/view/doi:10.18739/A20R9M49R en eng NSF Arctic Data Center PAH polycyclic aromatic hydrocarbon uncertainty GEOS-Chem dataset Dataset 2016 ftdatacite https://doi.org/10.18739/a20r9m49r 2021-11-05T12:55:41Z We quantitatively examine the relative importance of uncertainty in emissions and physicochemical properties (including reaction rate constants) to Northern Hemisphere (NH) and Arctic polycyclic aromatic hydrocarbon (PAH) concentrations, using a computationally efficient numerical uncertainty technique applied to the global-scale chemical transport model GEOS-Chem. Using polynomial chaos (PC) methods, we propagate uncertainties in physicochemical properties and emissions for the PAHs benzo[a]pyrene, pyrene and phenanthrene to simulated spatially resolved concentration uncertainties. We find that the leading contributors to parametric uncertainty in simulated concentrations are the black carbon-air partition coefficient and oxidation rate constant for benzo[a]pyrene, and the oxidation rate constants for phenanthrene and pyrene. NH geometric average concentrations are more sensitive to uncertainty in the atmospheric lifetime than to emissions rate. We use the PC expansions and measurement data to constrain parameter uncertainty distributions to observations. This narrows a priori parameter uncertainty distributions for phenanthrene and pyrene, and leads to higher values for OH oxidation rate constants and lower values for European PHE emission rates. Additional metadata can be found via: Thackray et al. DOI: 10.1021/acs.est.5b01823 Dataset Arctic black carbon DataCite Metadata Store (German National Library of Science and Technology) Arctic |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
PAH polycyclic aromatic hydrocarbon uncertainty GEOS-Chem |
spellingShingle |
PAH polycyclic aromatic hydrocarbon uncertainty GEOS-Chem Thackray, Colin Quantitative Uncertainty polycyclic aromatic hydrocarbon (PAH) metadata, 2006-2008. |
topic_facet |
PAH polycyclic aromatic hydrocarbon uncertainty GEOS-Chem |
description |
We quantitatively examine the relative importance of uncertainty in emissions and physicochemical properties (including reaction rate constants) to Northern Hemisphere (NH) and Arctic polycyclic aromatic hydrocarbon (PAH) concentrations, using a computationally efficient numerical uncertainty technique applied to the global-scale chemical transport model GEOS-Chem. Using polynomial chaos (PC) methods, we propagate uncertainties in physicochemical properties and emissions for the PAHs benzo[a]pyrene, pyrene and phenanthrene to simulated spatially resolved concentration uncertainties. We find that the leading contributors to parametric uncertainty in simulated concentrations are the black carbon-air partition coefficient and oxidation rate constant for benzo[a]pyrene, and the oxidation rate constants for phenanthrene and pyrene. NH geometric average concentrations are more sensitive to uncertainty in the atmospheric lifetime than to emissions rate. We use the PC expansions and measurement data to constrain parameter uncertainty distributions to observations. This narrows a priori parameter uncertainty distributions for phenanthrene and pyrene, and leads to higher values for OH oxidation rate constants and lower values for European PHE emission rates. Additional metadata can be found via: Thackray et al. DOI: 10.1021/acs.est.5b01823 |
format |
Dataset |
author |
Thackray, Colin |
author_facet |
Thackray, Colin |
author_sort |
Thackray, Colin |
title |
Quantitative Uncertainty polycyclic aromatic hydrocarbon (PAH) metadata, 2006-2008. |
title_short |
Quantitative Uncertainty polycyclic aromatic hydrocarbon (PAH) metadata, 2006-2008. |
title_full |
Quantitative Uncertainty polycyclic aromatic hydrocarbon (PAH) metadata, 2006-2008. |
title_fullStr |
Quantitative Uncertainty polycyclic aromatic hydrocarbon (PAH) metadata, 2006-2008. |
title_full_unstemmed |
Quantitative Uncertainty polycyclic aromatic hydrocarbon (PAH) metadata, 2006-2008. |
title_sort |
quantitative uncertainty polycyclic aromatic hydrocarbon (pah) metadata, 2006-2008. |
publisher |
NSF Arctic Data Center |
publishDate |
2016 |
url |
https://dx.doi.org/10.18739/a20r9m49r https://arcticdata.io/catalog/view/doi:10.18739/A20R9M49R |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic black carbon |
genre_facet |
Arctic black carbon |
op_doi |
https://doi.org/10.18739/a20r9m49r |
_version_ |
1766336984067866624 |