Ferris · Earth investigations

NASA POWER climate records · 2001–2025

Inspect satellite imagery

NASA GIBS MODIS Terra true-color imagery. Clouds and missing coverage may obscure the landscape. These browse images provide geographic context for the climate record.

Methods and reproducibility

Annual precipitation is calculated from monthly mean daily rates multiplied by calendar days. Annual temperature uses calendar-day weights. Monthly anomalies subtract the 2001–2025 calendar-month means. HAC uses three Bartlett-weighted lags, a finite-sample correction and approximate Student t inference. Trend confidence intervals are conditional on this model.