Data · dataset · 2026
Waves and vortices in the inverse cascade regime of stratified turbulence with or without rotation
Listed in National Center for Atmospheric Research
We study the partition of energy between waves and vortices in stratified turbulence, with or without rotation, for a variety of parameters, focusing on the behaviour of the waves and vortices in the inverse cascade of energy towards the large scales.
Description
To this end, we use direct numerical simulations in a cubic box at a Reynolds number Reâ1000Reâ1000, with the ratio between the BruntâVäisälä frequency NN and the inertial frequency ff varying from 1/41/4 to 20, together with a purely stratified run.
The Froude number, measuring the strength of the stratification, varies within the range 0.02 Fr 0.320.02 Fr 0.32. We find that the inverse cascade is dominated by the slow quasi-geostrophic modes. Their energy spectra and fluxes exhibit characteristics of an inverse cascade, even though their energy is not conserved.
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Surprisingly, the slow vortices still dominate when the ratio N/fN/f increases, also in the stratified case, although less and less so. However, when N/fN/f increases, the inverse cascade of the slow modes becomes weaker and weaker, and it vanishes in the purely stratified case. We discuss how the disappearance of the inverse cascade of energy with increasing N/fN/f can be interpreted in terms of the waves and vortices, and identify the main effects that can explain this transition based on both inviscid invariants arguments and viscous effects due to vertical shear.
Links
Get the data
- Publisher page n2t.org/ark:/85065/d7z039s0 ↗
documentation · download · from data ucar edu
Where it is published
- data.ucar.edu /dataset/waves-and-vortices-in-the-inverse-cascade-regime-of-st… ↗
National Center for Atmospheric Research dataset page
landing page · from data ucar edu
Catalogue records · 1
- CKAN API data.ucar.edu/api/3/action/package_show?id=5a43c373-0306-472a-b58d-b56261a8c… ↗
metadata API · from data ucar edu
Topics
- From keywords
- Earth & Environmental Science · Ocean & Atmospheric Science
- Inferred from text
- Atmospheric sciences 75%
Provenance · 1 source records, 8 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| National Center for Atmospheric Research | 5a43c373-0306-472a-b58d-b56261a8c63b | 13 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| concepts[field].anzsrc:group:3701 | enrichment · data ucar edu | taxonomy-embedding@1.1.0 | title+keywords+description (75%) |
| concepts[field].local:field:earth-environmental | mapping · data ucar edu | connector:data_ucar_edu@1.0.0 | |
| concepts[field].local:field:ocean-atmospheric | mapping · data ucar edu | connector:data_ucar_edu@1.0.0 | |
| created_date | source · data ucar edu | connector:data_ucar_edu@1.0.0 | |
| description | source · data ucar edu | connector:data_ucar_edu@1.0.0 | /notes |
| publication_date | source · data ucar edu | connector:data_ucar_edu@1.0.0 | |
| title | source · data ucar edu | connector:data_ucar_edu@1.0.0 | /title |
| updated_date | source · data ucar edu | connector:data_ucar_edu@1.0.0 |