NDLI: Examination of model predictions at different horizontal grid resolutions

Please wait, while we are loading the content...

Examination of model predictions at different horizontal grid resolutions

Content Provider	Springer Nature Link
Author	Gego, Edith Hogrefe, Christian Kallos, George Voudouri, Antigoni Irwin, John S. Rao, S. Trivikrama
Copyright Year	2005
Abstract	While fluctuations in meteorological and air quality variables occur on a continuum of spatial scales, the horizontal grid spacing of coupled meteorological and photochemical models sets a lower limit on the spatial scales that they can resolve. However, both computational costs and data requirements increase significantly with increasing grid resolution. Therefore, it is important to examine, for any given application, whether the expected benefit of increased grid resolution justifies the extra costs. In this study, we examine temperature and ozone observations and model predictions for three high ozone episodes that occurred over the northeastern United States during the summer of 1995. In the first set of simulations, the meteorological model RAMS4a was run with three two-way nested grids of 108/36/12 km grid spacing covering the United States and the photochemical model UAM-V was run with two grids of 36/12 km grid spacing covering the eastern United States. In the second set of simulations, RAMS4a was run with four two-way nested grids of 108/36/12/4 km grid spacing and UAM-V was run with three grids of 36/12/4 km grid spacing with the finest resolution covering the northeastern United States. Our analysis focuses on the comparison of model predictions for the finest grid domain of the simulations, namely, the region overlapping the 12 km and 4 km domains. A comparison of 12 km versus 4 km fields shows that the increased grid resolution leads to finer texture in the model predictions; however, comparisons of model predictions with observations do not reveal the expected improvement in the predictions. While high-resolution modeling has scientific merit and potential uses, the currently available monitoring networks, in conjunction with the scarceness of highly resolved spatial input data and the limitations of model formulation, do not allow confirmation of the expected superiority of the high-resolution model predictions.
Starting Page	63
Ending Page	85
Page Count	23
File Format	PDF
ISSN	15677419
Journal	Environmental Fluid Mechanics
Volume Number	5
Issue Number	1-2
e-ISSN	15731510
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2005-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	air quality grid resolution model evaluation Hydrogeology Meteorology/Climatology Oceanography Mechanics Environmental Physics
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Water Science and Technology

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

A framework for evaluating regional-scale numerical photochemical modeling systems

Physics-Chemistry interactions in the atmosphere from the air quality perspective

Sensitivity of air quality model prediction to parameterization of vertical eddy diffusivity

Comparative study of different advective schemes: Application to the MECCA model

The impact of chemical lateral boundary conditions on CMAQ predictions of tropospheric ozone over the continental United States

Performance evaluation of NOAA-EPA developmental aerosol forecasts

Urban Fluid Mechanics: Air Circulation and Contaminant Dispersion in Cities

A Multimedia Chemical Fate Model with Time-Dependent Air-Water Transfer Rates

Using a sub-grid scale modeling approach to simulate the transport and fate of toxic air pollutants

Examination of model predictions at different horizontal grid resolutions

Similar Documents

A framework for evaluating regional-scale numerical photochemical modeling systems

Physics-Chemistry interactions in the atmosphere from the air quality perspective

Sensitivity of air quality model prediction to parameterization of vertical eddy diffusivity

Comparative study of different advective schemes: Application to the MECCA model

The impact of chemical lateral boundary conditions on CMAQ predictions of tropospheric ozone over the continental United States

Performance evaluation of NOAA-EPA developmental aerosol forecasts

Urban Fluid Mechanics: Air Circulation and Contaminant Dispersion in Cities

A Multimedia Chemical Fate Model with Time-Dependent Air-Water Transfer Rates

Using a sub-grid scale modeling approach to simulate the transport and fate of toxic air pollutants

Examination of model predictions at different horizontal grid resolutions