Rocky Mountain acid-deposition model assessment: Acid Rain Mmountain Mesoscale Model (ARM3). Final report

Technical Report · Tue Nov 01 04:00:00 EST 1988

OSTI ID:6787624

Morris, R E; Kessler, R C; Douglas, S G; Styles, K R; Moore, G E

The Acid Rain Mountain Mesoscale Model (ARM3) is a mesoscale acid-deposition/air-quality model developed for calculating incremental acid-deposition (sulfur and nitrogen species) and pollutant-concentration impacts in complex terrain. The model was set up for operation within the Rocky Mountain region. The model contains many simplications that were necessary to meet operational requirements. New research studies to provide information on mesoscale flow over complex terrain and atmospheric chemistry in the western region would be necessary to help resolve questions concerning the validity of the model simplifications. The ARM3 consists of six components. Of them, the mesoscale meteorological model contains a new diagnostic wind model that accounts for the kinematic, deflection, and thermal effects that alter the flow fields due to complex terrain. The Lagrangian acid-deposition/air-quality model has the following attributes: two options for calculating plume height above ground; three options for determining dispersion rates, including one that accounts for terrain roughness; a dry deposition algorithm based on the resistance approach; a wet-deposition algorithm based on the scavenging approach; and two options for calculating chemical transformation.

• Research Organization: Systems Applications, Inc., San Rafael, CA (USA)
• OSTI ID: 6787624
• Report Number(s): PB-89-124408/XAB
• Country of Publication: United States
• Language: English

Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ACID RAIN
AIR POLLUTION
AIR QUALITY
ATMOSPHERIC PRECIPITATIONS
CHALCOGENIDES
COMPLEX TERRAIN
DOCUMENT TYPES
ENVIRONMENTAL QUALITY
ENVIRONMENTAL TRANSPORT
MASS TRANSFER
MATHEMATICAL MODELS
METEOROLOGY
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDES
OXYGEN COMPOUNDS
POLLUTION
PROGRESS REPORT
RAIN
SULFUR COMPOUNDS
SULFUR OXIDES