URBAN HPAC AND A SIMPLE URBAN DISPERSION MODEL COMPARED WITH THE JOINT URBAN 2003 (JU2003) FIELD DATA
Item
Title (Dublin Core)
eng
URBAN HPAC AND A SIMPLE URBAN DISPERSION MODEL COMPARED WITH THE JOINT URBAN 2003 (JU2003) FIELD DATA
Description (Dublin Core)
eng
The Hazard Prediction and Assessment Capability (HPAC) dispersion model is widely used by the U.S. Department of
Defense and the results of previous evaluations have been presented at Harmonization conferences. The version of its diagnostic
wind model that is applied to urban areas has been significantly updated to remove biases in wind speed estimates, requiring reevaluations
with urban tracer data sets such as the Joint Urban 2003 (JU2003) data base. For comparison purposes, a simple
Gaussian-format urban dispersion model has been run for the same JU2003 data base. The simple urban model has previously been
evaluated with the Madison Square Garden 2005 (MSG05) data. The evaluations focus on 30-minute averaged (1) arc maximum
concentrations and (2) concentrations paired in space. It is shown that the revisions to the diagnostic wind model in urban HPAC
have resulted in improved performance. Similar good performance is found for the simple urban dispersion model, although it has
more errors for off-centerline and upwind receptors in the downtown area.
Defense and the results of previous evaluations have been presented at Harmonization conferences. The version of its diagnostic
wind model that is applied to urban areas has been significantly updated to remove biases in wind speed estimates, requiring reevaluations
with urban tracer data sets such as the Joint Urban 2003 (JU2003) data base. For comparison purposes, a simple
Gaussian-format urban dispersion model has been run for the same JU2003 data base. The simple urban model has previously been
evaluated with the Madison Square Garden 2005 (MSG05) data. The evaluations focus on 30-minute averaged (1) arc maximum
concentrations and (2) concentrations paired in space. It is shown that the revisions to the diagnostic wind model in urban HPAC
have resulted in improved performance. Similar good performance is found for the simple urban dispersion model, although it has
more errors for off-centerline and upwind receptors in the downtown area.
Creator (Dublin Core)
Hanna, Steven
Sykes, Ian
Chang, Joseph
White, John
Baja, Emmanuel
Subject (Dublin Core)
eng
Urban dispersion; Model evaluation; Joint Urban 2003 field experiment; HPAC model
Publisher (Dublin Core)
Croatian meteorological society
Date (Dublin Core)
2008
Type (Dublin Core)
text
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Format (Dublin Core)
application/pdf
Identifier (Dublin Core)
https://hrcak.srce.hr/64265
eng
https://hrcak.srce.hr/file/96382
Source (Dublin Core)
Hrvatski meteorološki časopis
ISSN 1330-0083 (Print)
ISSN 1849-0700 (Online)
Volume 43
Issue 43/1
Language (Dublin Core)
eng
Rights (Dublin Core)
info:eu-repo/semantics/openAccess
The papers of this Journal are free of charge for personal or educational use, with respect of copyright of authors and publisher.