Data · dataset · 2026
Weakened aerosolâPBL interactions enhance future air quality benefits under carbon neutrality in China: Insights from the advanced variableâresolution global model
Listed in National Center for Atmospheric Research
China's pursuing the carbon neutrality goal could affect future air quality not only by reducing anthropogenic emissions but also by modulating aerosolâplanetary boundary layer (PBL) interactions.
Description
However, contributions of aerosolâPBL interactions to future air quality benefits remain unclear. Here we conduct ensemble experiments using the variableâresolution (VR) Community Atmosphere Model with full chemistry based on the scalable spectral element (SE) dynamical core with East Asia refined to â¼28 km (SE_VR).
Additional simulations at a uniform resolution of â¼111 km (SE_UR) are conducted to help demonstrate SE_VR's advantages in projecting future air quality. Results of SE_VR show that the mean PM 2.5 concentrations in China would drop to below 10 μg/m 3 , especially in Sichuan Basin (SCB) where the frequencies of moderate and severe air pollution events are predicted to decrease from 60.7% and 11.3% to nearly zero respectively when achieving carbon neutrality.
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The aerosolâPBL interactions would be substantially weakened with anthropogenic emission reductions. At SCB and Eastern China (EC), the weakened radiative effects of black carbon (BC) would contribute 34.3% and 71.6% to the increase in PBL height (PBLH). Consequently, these weakened BCâPBL interactions reduce the surface PM 2.5 concentrations by 16.1 μg/m 3 (18.9%) in SCB and 4.6 μg/m 3 (16.4%) in EC.
Notably, SE_VR outperforms SE_UR in projecting the frequency decrease of future air pollution events for its better reproducing current levels, particularly those caused by BC aerosols. This study highlights the importance of weakened aerosolâPBL feedbacks on future air quality improvement and demonstrates the added values of variableâresolution global models in air quality projections.
Links
Get the data
- Publisher page n2t.net/ark:/85065/d7qj7nk9 ↗
documentation · download · from data ucar edu
Where it is published
- data.ucar.edu /dataset/weakened-aerosolapbl-interactions-enhance-future-air-q… ↗
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=f4abaea6-d963-4e89-8d0b-6ee5a5d4b… ↗
metadata API · from data ucar edu
Topics
- From keywords
- Earth & Environmental Science · Ocean & Atmospheric Science
Provenance · 1 source records, 7 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| National Center for Atmospheric Research | f4abaea6-d963-4e89-8d0b-6ee5a5d4bc62 | 13 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| 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 |