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# HERMESv3_BU Wiki
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The High-Elective Resolution Modelling Emission System version 3 for Bottom-Up approaches (HERMESv3_BU) is a stand-alone multiscale atmospheric emission processing system that processes and estimates emissions using different approaches for each emission sector.
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The High-Elective Resolution Modelling Emission System version 3 for Bottom-Up approaches (HERMESv3_BU) is a Python-based, open source, parallel and stand-alone emission model that estimates high-resolution anthropogenic emissions for air quality modelling.
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#### Description
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Short description of the tool
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HERMESv3_BU is a an emission model that estimates anthropogenic emissions at the source (e.g. road link, industrial facility) and hourly level combining state-of-the-art estimation methods with local activity and emission factors along with meteorological data.
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The model covers the estimation of bottom-up emissions from point sources, road transport, residential and commercial combustion, other mobile sources and agricultural activities. The computed pollutants include main criteria pollutants (i.e. NOx; CO; NMVOC; SOx; NH3; PM10 and PM2.5).
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Specific emission estimation methodologies are provided for each source, and are mostly based on (but not limited to) the calculation methodologies reported by the European EMEP/EEA air pollutant emission inventory guidebook. Meteorological-dependent functions are also included to take into account the dynamical component of the emission processes.
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The model also provides several functionalities for automatically manipulating and performing spatial operations on georeferenced objects (shapefiles and raster files). The model is designed so that it can be applicable to any European country/region where the required input data is available.
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Emissions can be estimated on several user-defined grids, mapped to multiple chemical mechanisms and adapted to the input requirements of different atmospheric chemistry models (CMAQ, WRF-Chem and MONARCH) as well as a street-level dispersion model (R-LINE).
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- Output image / module scheme (if possible)
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| ... | ... | @@ -16,7 +24,7 @@ Despite of intensive work on the development and testing of HERMESv3_BU, there m |
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#### How to cite
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* Working on paper
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* Guevara, M., Tena, C., Porquet, M., Jorba, O., and Pérez García-Pando, C.: HERMESv3, a stand-alone multi-scale atmospheric emission modelling framework – Part 2: bottom-up module, in preparation.
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* [Bibtext citation](bibtext_citation)
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