Identification

Title

The NCAR Eulerian Regional Acid Deposition Model

Abstract

The principal objective of this project is to develop an Eulerian regional acid deposition model suitable for assessing source-receptor relationships. The initial task is the construction of a modeling framework integrating an existing and evolving mesoscale meteorological model with a new transport and chemical transformation model. This report summarizes progress from May 1983 to December 1984. In a nutshell, the project is on schedule and, in selected areas, ahead of the original schedule (NCAR, 1983d). The mesoscale meteorological model has been recoded and is now about three times faster than before. Several scientific studies have been done using this state-of-the-art model. First-generation submodels of gas phase chemistry and aqueous phase chemistry with simple parameterizations of subgrid-scale cloud processing and dry deposition have been completed. Whenever possible, these submodels have been evaluated with or compared to available experimental data and found to be performing well. The submodels have been integrated into a first-generation Eulerian long-range transport and acid deposition model. A first run with the full modeling system using one set of Oxidant-Scavenging Characteristics of April Rains (OSCAR) data has been completed. The full set of OSCAR data is being analyzed in preparation for model evaluations. We have completed two exhaustive studies on the possible chemical reactions and aqueous phase reactions and evaluated the available data for reaction rate coefficients. We have also developed an analysis technique for studying source-receptor relationships within the Eulerian modeling framework. These studies and others are covered in this report.

Resource type

document

Resource locator

Unique resource identifier

code

http://n2t.net/ark:/85065/d7cr5st9

codeSpace

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

geoscientificInformation

Keywords

Keyword set

keyword value

Text

originating controlled vocabulary

title

reference date

date type

publication

effective date

2016-01-01T00:00:00Z

Keyword set

keyword value

EARTH SCIENCE SERVICES > MODELS > WEATHER RESEARCH/FORECAST MODELS

EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY

EARTH SCIENCE > HUMAN DIMENSIONS > ENVIRONMENTAL IMPACTS > ACID DEPOSITION

EARTH SCIENCE SERVICES > MODELS > ATMOSPHERIC CHEMISTRY MODELS

originating controlled vocabulary

title

reference date

date type

revision

effective date

2021-09-17

Geographic location

West bounding longitude

East bounding longitude

North bounding latitude

South bounding latitude

Temporal reference

Temporal extent

Begin position

End position

Dataset reference date

date type

publication

effective date

1985-01-01T00:00:00Z

Frequency of update

Quality and validity

Lineage

Conformity

Data format

name of format

version of format

Constraints related to access and use

Constraint set

Use constraints

Copyright Author(s). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

Limitations on public access

None

Responsible organisations

Responsible party

contact position

OpenSky Support

organisation name

UCAR/NCAR - Library

full postal address

PO Box 3000

Boulder

80307-3000

email address

opensky@ucar.edu

web address

http://opensky.ucar.edu/

name: homepage

responsible party role

pointOfContact

Metadata on metadata

Metadata point of contact

contact position

OpenSky Support

organisation name

UCAR/NCAR - Library

full postal address

PO Box 3000

Boulder

80307-3000

email address

opensky@ucar.edu

web address

http://opensky.ucar.edu/

name: homepage

responsible party role

pointOfContact

Metadata date

2023-08-18T18:04:46.223645

Metadata language