Tutorial for aermod view an interface for us epa aermod model
Download
1 / 47

Tutorial for AERMOD View, an interface for US-EPA AERMOD Model - PowerPoint PPT Presentation


  • 3511 Views
  • Uploaded on

Tutorial for AERMOD View, an interface for US-EPA AERMOD Model. Nima A- Mohajer. ENV 6146, Atmospheric Dispersion Modeling February 2010. http://www.weblakes.com/ . Outline. Introduction to AERMOD Installation, AERMOD View environment AERMET Making the model in AERMOD View

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Tutorial for AERMOD View, an interface for US-EPA AERMOD Model' - yosefu


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Tutorial for aermod view an interface for us epa aermod model l.jpg

Tutorial for AERMOD View, an interface for US-EPA AERMOD Model

Nima A-Mohajer

ENV 6146, Atmospheric Dispersion Modeling

February 2010

  • http://www.weblakes.com/


Outline l.jpg
Outline Model

  • Introduction to AERMOD

  • Installation, AERMOD View environment

  • AERMET

  • Making the model in AERMOD View

  • AERMOD pathways

  • AERMAP

  • Running AERMOD View

Goal

  • Pursuing an example for air dispersion modeling by using the AERMOD short-term model


An introduction to aermod l.jpg
An introduction to AERMOD Model

  • AERMOD

    • stands for American Meteorological Society/ Environmental Protection Agency Regulatory Model

  • COMPONENTS

    • AERMET – a meteorological preprocessor

    • AERMAP – a terrain data preprocessor

    • AERMOD – a dispersion model

  • SUPPORT TOOLS

    • AER-SURFACE – processes surface characteristics data

    • AER-SCREEN – provides a screening tool



Minimum aermet input data l.jpg
Minimum AERMET input data Model

  • Hourly surface data

  • Upper air data

  • Location of the pertinent site, sectors and surface data

  • On-site data

  • Hourly surface data

    • Cloud cover (Tenth)

    • Dry bulb temperature (o C)

    • Relative humidity (%)

    • Station pressure (mb)

    • Wind direction (deg)

    • Wins speed (m/s)

  • Ceiling height (m)

  • Precipitation amount (hundredths of inches)

  • Global horizontal radiation (wh/m2)




Quality assessment feature l.jpg
Quality assessment feature Model

  • QA is an optional process helping potential problems in data to be excluded or included.



Input upper air data l.jpg
Input upper air data Model

How does it look after clicking preview button?

  • http://www.webmet.com/MetGuide/TD6200.html


Quality assessment for upper data l.jpg
Quality assessment for upper data Model

  • QA is an optional process helping potential problems in data to be excluded or included.


Application site sectors and surface parameters l.jpg
Application site, sectors and surface parameters Model

Site of model (application site)



Application site sectors and surface parameters14 l.jpg
Application site, sectors and surface parameters Model

  • Albedo for each land type → reflective power of the surface

  • Bowen ratio for each land type → portion of transferred energy from the surface to the atmosphere

  • Surface roughness foe each land type

  • A combination of different types of land use data may be used for a particular case.


Running the aermet outputs l.jpg
Running the AERMET/Outputs Model

  • Output files

    • Surface file, *.SFC

    • Profile file, *.PFL

    • Wind rose


Aermod view l.jpg
AERMOD View Model

  • Assumptions

    • A factory in a rural area

    • 2 stacks with a building in between

  • SO2 as pollutant in flue gas

  • Assumed value for stacks

  • Surface file, *.SFC

  • Profile file, *.PFL


Defining initial parameters l.jpg
Defining initial parameters Model

  • UTM (Universal Transverse Mercator) Zones

  • http://en.wikipedia.org/wiki/Universal_Transverse_Mercator_coordinate_system


Defining initial parameters18 l.jpg
Defining initial parameters Model

  • Site geometry



Importing base map l.jpg
Importing base map Model

  • A raster map as an image file (JPEG, TIFF, DXF, …) should be imported

  • Import → Base maps…

  • Then, map extents should be geo-referenced


Importing stacks and building l.jpg
Importing stacks and building Model

  • Extents of the building foundation and stacks are imported by a DXF file. Import → base maps…


Defining building l.jpg
Defining building Model

  • Drawing tools


Defining stacks l.jpg
Defining stacks Model

  • Zooming to the extents of interest


Defining stacks24 l.jpg
Defining stacks Model

  • Drawing tools


3 d visualization l.jpg
3-D Visualization Model

  • Export → Google Earth


Aermod pathways l.jpg
AERMOD pathways Model

  • Control pathway

  • Source pathway

  • Receptor pathway

  • Meteorology pathway

  • Output pathway

  • Control pathway

  • Dispersion options

  • Pollutant/Averaging

  • Terrain options

  • Receptor pathway

  • Receptor summary

  • Grids

  • Meteorological pathway

  • Met input data

  • Data period

  • Wind speed categories

  • Source pathway

  • Source summary

  • Building downwash


Control pathway l.jpg
Control pathway Model

Dispersion options


Control pathway28 l.jpg
Control pathway Model

Pollutant/Averaging


Control pathway29 l.jpg
Control pathway Model

Pollutant/Averaging

  • If the land use types including industrial, commercial and residential uses account for 50% or more of an area within 3 km radius from the source, the site is classified as urban; otherwise, it is classed as rural.


Control pathway30 l.jpg
Control pathway Model

Terrain options


Source pathway l.jpg
Source pathway Model

Source summary


Source pathway32 l.jpg
Source pathway Model

Building downwash

  • Will be calculated later on by the software


Receptor pathway l.jpg
Receptor pathway Model

Receptor summary


Receptor pathway34 l.jpg
Receptor pathway Model

Grids

or


Meteorology pathway l.jpg
Meteorology pathway Model

Met input data


Meteorology pathway36 l.jpg
Meteorology pathway Model

Data period


Meteorology pathway37 l.jpg
Meteorology pathway Model

Wind speed categories


Output pathway l.jpg
Output pathway Model

Tabular outputs


Terrain aermap processor l.jpg
Terrain, (AERMAP processor) Model

  • Terrain or AERMAP feature of AERMOD, is used for processing the elevated terrains. It creates a digital terrain file that covers modeling domain.

  • Digital Elevated Maps (DEM)


Slide40 l.jpg

Terrain, (AERMAP processor) Model

  • Determining the extensions in DEM


Slide41 l.jpg

Terrain, (AERMAP processor) Model

  • Import elevations/hill heights

Reviewing Receptor pathway, Source pathway, and Building Inputs, shows the imported elevations and hill heights generated by AERMAP



Slide43 l.jpg

Running BPIP Model

  • BPIP is an acronym for Building Input Profile Program and it is for obtaining building downwash calculation results.


Slide44 l.jpg

Running BPIP Model

  • Run → BPIP


Slide45 l.jpg

Running Model AERMOD




ad