10/03/2025
🌍🛰️ Global Sea Level Pressure (SLP) Distribution | Jan–Sep 2025 🌡️🌐
Here we present the Global Sea Level Pressure (SLP) Map, derived from the NCEP/NCAR Reanalysis 1 dataset with a 6-hour temporal resolution and 2.5° spatial resolution. This dataset allows us to visualize atmospheric circulation patterns and analyze the behavior of global weather systems during the period 01-January-2025 to 29-September-2025.
📌 What is Sea Level Pressure (SLP)?
Sea Level Pressure is the atmospheric pressure corrected to sea level, enabling consistent global comparisons. It is a key variable in meteorology and climatology, reflecting weather system formation, monsoons, cyclones, anticyclones, and atmospheric circulation patterns.
🔍 Highlights from the Map:
Low Pressure Zones (965–1004 mb): Associated with cyclones, tropical storms, hurricanes, and monsoonal rainfall (notable over the Bay of Bengal, Arabian Sea, and North Atlantic).
High Pressure Zones (1017–1045 mb): Indicating stable conditions linked to heatwaves, dry spells, and anticyclones (clearly observed over subtropical oceans such as the North Pacific High and South Atlantic High).
Key Global Circulation Features:
✅ ITCZ near the equator with convective activity.
✅ Subtropical High-Pressure Belts influencing trade winds and monsoon dynamics.
✅ Asian Summer Monsoon signals with persistent low-pressure systems over South and Southeast Asia.
💡 Such geospatial climate datasets are vital for weather forecasting, climate monitoring, agricultural planning, and disaster preparedness.
📍 At GIS Kingdom, we specialize in GIS & Remote Sensing solutions, transforming raw climate and atmospheric data into actionable insights for research, planning, and policy-making.