Review of developments in air quality modelling and air quality dispersion models
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
Air dispersion models are mathematical tools used for simulating the physical and chemical processes governing the diffusion and transformation of pollutants in the atmosphere. The simplest dispersion models are steady-state Gaussian plume models. They are based on mathematical approximation of the plume behaviour and follow some basic assumptions that may not always present a realistic scenario. Despite having these limitations, they provide reasonable results when used aptly. More recently, advanced dispersion models are being developed, which are based on a more refined approach of simulating the dispersion phenomenon following the properties of the atmosphere rather than relying on general mathematical approximation. This has expanded the field of modelling to tackle difficult situations such as complex terrain and long-distance transport. In this review paper, the developments in air quality modelling, with emphasis on dispersion modelling, are presented. Further, a few models are selected representing different categories in dispersion modelling, which are Gaussian models – American Meteorological Society/Environmental Protection Agency Regulatory Model, Caline4, Airviro Gauss, Complex Terrain Dispersion Model and Fugitive Dust Model; Eulerian models – California Grid Model, Flexible Air Quality Regional Model and Panache; Lagrangian models – Graz Lagrangian Model, Flexible Particle Dispersion Model, Austal2000 and Hybrid Single Particle Lagrangian Integrated Trajectory Model; and advanced dispersion models – UK–Atmospheric Dispersion Modelling System 5, The Air Pollution Model and Calpuff. A comparison has been done based on certain characteristic features obtained from various publications.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it