AirWare On-line Manuals: Emission matrices

AirWare On-line Reference Manual

Release Level	5.3.0 beta
Release Date	2007 06
Revision Level	1.1

Emission Matrices

Emission data are also available as gridded, topical maps can can be viewed as map overlays or topical maps, and exported in numerical format for further processing with external tools (statistics, GIS).

The emission matrices are either calculated

automatically by the pre-processors for CAMx and AERMOD scheduled (hourly and daily) runs;
interactively, on demand, from the emission inventories;
interactively, as part of a model scenario (CAMx or AERMOD).

The listing of the currently available emissionmatrices is triggered by the text link Emission matrices at the bottom of the main menu page.

Emission Matrix Data

Emission Matrices are OBJECTS with the standard OBJECT data and meta data.

The attributes of an emission matrix include:

Matrix name
Descriptor and unit
Domain reference
Size and resolution
Dimensionality (layers and time steps)
Basic statistics

Data Export

From the main emission matrix page, a button labeled exporti triggers an export dialog.

This will start a small po-up window with a summary of the emission data, and a text link export to the actual gridded emission data. The data are organised (for all non-zero values) in a simple text/ascii format:

X-coordinate Y-coordinate emission value

A left mouse button click will display the data;
A right mouse button click will start a download dialog on the local client PC.
This includes the option Save Link as ... which will download the emission data into a local user defined text file.