The well known Graz Lagrangian particle model (GRAL) system developers, with a free Graphic User Interface (GUI) available in both Linux and Windows, have released the new GRAL and GUI version 22.03 with plenty of bug fixes and new features.
According to developers, systematic refactoring will improve the prevention of such bugs in the future, as the readability and maintainability of the code has increased significantly.
Meteosim has launched now "Metdata", the first worldwide meteorological modelled data-set for performing simulations using AERMOD, CALPUFF and ADMS dispersion models with open and transparent pricing. Weather series are generated through the combined use of modelling data by the Weather Research and Forecasting System (WRF) meteorological model with remote sensing data and instrumental information worldwide.
There are a few companies around in the globe that sell meteorological data for dispersion modelling. However this is the first one to our knowledge that offers a public and transparent pricing to acquire meteorological data for your modelling. With "Metdata", the company Meteosim offers a flexible and fast way to calculate costs of met data acquisition. For example, the price for a WRF set of data ready for CALMET/CALPUFF varies between 250€ for 1 year of data and a resolution of 9 km, and 4250 € for 5 years of data and a spatial resolution of 1 km.
Odours are typically released into the atmosphere as diffuse emissions from area and volume sources, whose detailed quantification in terms of odour emission rate is often hardly achievable by direct source sampling. Indirect methods, involving the use of micrometeorological methods in order to correlate downwind concentrations to the emission rates, are already mentioned in literature, but rarely found in real applications for the quantification of odour emissions.
The instrumentation needed for the development of micrometeorological methods has nowadays become accessible in terms of prices and reliability, thus making the implementation of such methods to industrial applications more and more interesting.
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