DAD-drift
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Zenodo
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| Natura: | Recurso digital |
| Pubblicazione: |
Zenodo
2026
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| _version_ | 1866901879848435712 |
|---|---|
| author | Fuchs, Mike Devin |
| author_facet | Fuchs, Mike Devin |
| contents | <p>This release extends the Gaussian puff formulation used in DAD-drift and improves computational performance.</p> <p>The primary motivation for this development was to address symmetric Gaussian behavior that may result in non-zero upwind deposition under certain conditions. To this end, a skewing term in the downwind direction has been implemented.</p> <p>As part of this development, the Gaussian puff model was further extended to a fully shear-resolved formulation using multiple vertical slices. This required a revised treatment of the wind profile representation within the model.</p> <p>In addition, the numerical treatment of spray drift deposition was refined by replacing point-based sampling at fixed coordinates with an integration over grid cells in the horizontal plane. This reduces numerical sensitivity to sampling intervals and improves the robustness of deposition estimates.</p> <p>Several algorithmic optimizations were also implemented, resulting in substantially reduced computation times compared to v1.0.</p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_18174935 |
| institution | Zenodo |
| language | |
| publishDate | 2026 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | DAD-drift Fuchs, Mike Devin drift spray drift pesticides plant protection products risk assessment atmospheric dispersion Gaussian diffusion DAD-drift model modelling environmental <p>This release extends the Gaussian puff formulation used in DAD-drift and improves computational performance.</p> <p>The primary motivation for this development was to address symmetric Gaussian behavior that may result in non-zero upwind deposition under certain conditions. To this end, a skewing term in the downwind direction has been implemented.</p> <p>As part of this development, the Gaussian puff model was further extended to a fully shear-resolved formulation using multiple vertical slices. This required a revised treatment of the wind profile representation within the model.</p> <p>In addition, the numerical treatment of spray drift deposition was refined by replacing point-based sampling at fixed coordinates with an integration over grid cells in the horizontal plane. This reduces numerical sensitivity to sampling intervals and improves the robustness of deposition estimates.</p> <p>Several algorithmic optimizations were also implemented, resulting in substantially reduced computation times compared to v1.0.</p> |
| title | DAD-drift |
| topic | drift spray drift pesticides plant protection products risk assessment atmospheric dispersion Gaussian diffusion DAD-drift model modelling environmental |
| url | https://doi.org/10.5281/zenodo.18174935 |