El Niño 2026 Monitoring at ATTO – Air and Soil Conditions

The figures below compare the monthly meteorological conditions, soil conditions, and aerosol particle concentrations observed at the ATTO Site in 2026 with the corresponding climatological standard normal.
 
Air temperature, relative humidity, and precipitation are measured at 81 m above ground level (AGL). Black carbon and fine particulate matter concentrations are measured at 60 m and 325 m AGL, respectively. Soil temperature and soil water content are measured at a depth of 10 cm below the soil surface.
 
For each variable, the upper panel shows the climatological standard normal and the values observed in 2026. The lower panel shows the monthly anomaly, calculated as the difference between the 2026 value and the climatological normal (2026 − climatological normal).
Positive anomalies indicate values above the climatological reference, whereas negative anomalies indicate values below the climatological reference.

To use this data for scientific purposes, please visit our ATTO Data Portal.