This page should be read in conjunction with How Plume Plotter Works. It provides more details specific to the Krasnoyarsk version of Plume Plotter.
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.
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):||533.729||267.244||9.3333||6.0444|
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.
The emission rates of the pollutant (sulphur dioxide) is shown in the above table.
The background levels of pollutants are estimated:
concentration per m3
|Sulphur dioxide||5 μg|
Weather data is taken from METAR reports from a local airport: Krasnoyarsk.
Upper air data is the latest reported by the Emeljanovo upper air station.