Using millions of optical and radar images from 2014–2022, NASA JPL scientists produced the first global map of seasonal speedups and slowdowns in glacier movement. The study shows how regional glaciers accelerate during melt seasons and decelerate in winter, with variability tied to precipitation, temperature, and subglacial hydrology. This global perspective will help identify which glaciers are most vulnerable to warming, improve sea‑level rise projections, and refine models of ice dynamics. Results were published in Science in November 2025, and NASA released an explainer with interactive visuals to guide interpretation and application for hazard planning and climate research communities.
Source: NASA Science (Dec 3, 2025)
Link: https://science.nasa.gov/earth/earth-observatory/satellites-detect-seasonal-pulses-in-earths-glaciers/
NASA Maps Seasonal Pulses in Glacier Flow Worldwide
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