What question did this study set out to answer?

To quantify the seasonal changes in temperature and precipitation across the tropics and subtropics and assess climate change impacts.

July 26, 2026Natural HazardsOpen Access

Spatial and seasonal asymmetries in temperature and precipitation changes across the tropics and subtropics

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Analyzed changes in temperature and precipitation in tropics and subtropics, revealing significant spatial and seasonal variations.

To quantify the seasonal changes in temperature and precipitation across the tropics and subtropics and assess climate change impacts.
Analyzed the ECMWF ERA5 dataset for 1979–2020
Measured changes in mean, variance, and skewness of temperature and precipitation
Examined seasonal variation in temperature and precipitation rates across hemispheres.
Global mean warming rate of 0.23°C per decade, stronger over land than ocean.
Precipitation increased globally at 9.71 mm per decade, with significant increases over the tropics and diverse land-ocean effects.
Variance and skewness of temperature and precipitation decreased in eastern tropical South Pacific from 2000-2019 compared to 1980-1999.

Alizadeh et al. (2026) studied this question.

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