Details of Krasnoyarsk Plume Plotter

This page should be read in conjunction with How Plume Plotter Works. It provides more details specific to the Krasnoyarsk version of Plume Plotter.

Stacks and buildings

One stack is modelled. No buildings are included in the model because the stacks are so high that the buildings would not affect the plume.

Stack measurements

These details are supplied by local contacts. Each column refers to a different emissions source:

Stack easting (UTM):	493697	493821	489512	489507
Stack northing (UTM):	6202887	6202861	6203524	6203554
Stack base elevation (m):	173.76	173.76	146.76	146.76
Stack height (m):	180	180	70	70
Stack diameter (m):	7.2	6	2.5	2.5
Stack gas exit velocity (m/s):	15.76	11.9	6.87	4.72
Stack gas temperature (°C):	143	156	149	134
Emission rate (g/s):	220.688	135.642	8.3313	4.8873

The following (estimated) values are used for albedo, Bowen ratio and roughness length. These apply to the weather data site. In addition, because of the urban location, the "URBAN" option of AERMOD was used, with a roughness length of 1 metre and a population of 1 million.

Albedo: 0.2.
Bowen ratio: 1.
Roughness length: 0.2.

Emissions

The emission rates of the pollutant (nitrogen dioxide) is shown in the above table.

Background levels

The background levels of pollutants are estimated:

Pollutant	Background concentration per m³
Nitrogen dioxide	25 μg

Weather data

Weather data is taken from METAR reports from a local airport: Krasnoyarsk.