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Mohammed El-Said

Image of a blue sphere with lights near the top and bottom
Posted inNews

True North, Strong and Free—And Better Oriented

by Mohammed El-Said 14 September 202314 September 2023

Researchers explored a method for locating true north using the polarization patterns of daylight.

Satellite image of the Mississippi delta.
Posted inNews

Estimating Land Loss in River Deltas

by Mohammed El-Said 31 August 202219 September 2023

Some deltas are susceptible to land loss during sea level rise, whereas others gain land because of changes in the courses of rivers.

Satellite images of the Yangtze River in 1999 and 2010, showing a radical reduction in suspended sediment
Posted inNews

Satellites Show Magnitude of Human Influence on River Sediment Flux

by Mohammed El-Said 12 July 20228 September 2022

Dam-building has decreased the amount of sediment transported by rivers, while land use changes have increased the amount.

Esquema algoritmo de aprendizaje para estimar las magnitudes de terremotos sobre la base de señales de elastogravidad rápida.
Posted inNews

Monitoreando terremotos a la velocidad de la luz

by Mohammed El-Said 30 June 202230 June 2022

Nueva investigación utiliza la gravedad y un modelo de aprendizaje automático para estimar instantáneamente la magnitud y ubicación de grandes terremotos.

Illustration of the AI algorithm estimating large earthquakes’ magnitudes on the basis of prompt elastogravity signals (PEGS) traveling at the speed of light, much faster than seismic (P and S) waves.
Posted inNews

Monitoring Earthquakes at the Speed of Light

by Mohammed El-Said 2 June 20222 June 2022

New research uses gravity and a machine learning model to instantaneously estimate the magnitude and location of large earthquakes.

The Danum River runs through a dense tropical forest.
Posted inNews

Restored Tropical Forests Recover Faster Than Those Left Alone

by Mohammed El-Said 3 September 202019 October 2022

The costs of active restoration may be offset by aggressive carbon pricing demanded by the Paris Agreement.

Posted inNews

Grand Ethiopian Renaissance Dam

by Mohammed El-Said 6 August 202030 September 2024

This article has been removed.

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Features from AGU Publications

Research Spotlights

Deforestation Is Reducing Rainfall in the Amazon

19 May 202519 May 2025
Editors' Highlights

Bringing Storms into Focus

19 May 202515 May 2025
Editors' Vox

Decoding Crop Evapotranspiration

6 May 20256 May 2025
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