Data · dataset · 2026
Assessing the impact of the South Indian Ocean HighâPressure system using a novel index
Listed in National Center for Atmospheric Research
The South Indian Ocean High‐Pressure (SIOHP) system plays a crucial role in modulating atmospheric circulation, precipitation, and temperature patterns across the Indian Ocean basin and adjacent regions.
Description
Despite its significance, a comprehensive index for quantifying SIOHP variability, intensity, and impacts has been lacking. To address this gap, this study utilises a novel SIOHP index to systematically assess its climatic influence.
Our findings reveal that the SIOHP's seasonal variability significantly impacts regional precipitation, temperature, and humidity. During austral winter (JJA), a stronger SIOHP is associated with drier and cooler conditions in southeastern Africa and Madagascar, while its weakening in summer (DJF) corresponds to increased precipitation in these regions. Additionally, a westward shift of the SIOHP enhances rainfall in southwestern Australia, mitigating drought conditions.
Read the rest (1 more)
Furthermore, the SIOHP‐driven moisture transport plays a vital role in shaping regional hydroclimate variability, influencing moisture advection and precipitation. These findings highlight the SIOHP's critical role in regional climate variability, underscoring the need for further research on its drivers and interactions with larger climate modes. This study provides a quantitative framework for improving seasonal forecasting, climate adaptation planning, and early warning systems in a changing climate.
Links
Get the data
- Publisher page n2t.net/ark:/85065/d7280d2c ↗
documentation · download · from data ucar edu
Where it is published
- data.ucar.edu /dataset/assessing-the-impact-of-the-south-indian-ocean-highapr… ↗
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=b2620516-b784-4bbd-9d7b-ca4e8624e… ↗
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 | b2620516-b784-4bbd-9d7b-ca4e8624ec19 | 10 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 |