Hello,
I'm an undergraduate student working on transboundary air pollution on Bangladesh. I know how to use HYSPLIT and Trajstat software. Is there any other software that can provide me exact quantitative analysis of how much pollutants may come from long range sources?
Musfekur Rahman Dihan
There are many excellent Lagrangian models to use in your research, l would like to suggest the FLEXPART system; the official site with all essential information is
https://www.flexpart.eu
The historical background is provided in many sources including the Wikipedia
https://en.wikipedia.org/wiki/FLEXPART
I strongly recommend this system based on a well documented list of the case studies of a long range transport of air pollutants.
Musfekur Rahman Dihan
There are many excellent Lagrangian models to use in your research, l would like to suggest the FLEXPART system; the official site with all essential information is
https://www.flexpart.eu
The historical background is provided in many sources including the Wikipedia
https://en.wikipedia.org/wiki/FLEXPART
I strongly recommend this system based on a well documented list of the case studies of a long range transport of air pollutants.
Musfekur Rahman Dihan
In order to answer your question: “how much pollutants may come from long range sources?” we have to identify a source region. This primary task can be accomplished using the inverse atmospheric transport models. I would like to suggest the following report
Article Extended back-trajectories by means of adjoint equations
The theory based on the adjoint equations, described in this study, is invaluable as a basis for the rational selection of your software for both forward and inverse atmospheric transport.
Another approach - Chemical transport models as CMAQ, EMEP, Chimere, ... are used for the regional scale. You can use the brute force method (zero-out, or decrease the emissions from a certain region/country and check the changed concentrations on the model output). see e.g. https://www.sciencedirect.com/science/article/abs/pii/S0269749118316853
You can look also at some of FAIRMODE documents
If we stay with the CTM models - the adjoint version of CMAQ is developed, it still seems under testing.
Preprint A Multiphase CMAQ Version 5.0 Adjoint
Have good luck with your research
jana
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