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GPS & GIS

Diagrams showing the two effects of water storage change can be sensed by GPS.
Posted inEditors' Highlights

GPS Observations Sense Groundwater Change in Australia

by Annette Eicker 20 April 202319 April 2023

By exploiting the fact that changes in groundwater cause deformations of the Earth’s surface, GPS receivers are used to detect groundwater changes related to extreme events and to seasonal oscillations.

Map showing global distribution of volcanoes on Venus.
Posted inEditors' Highlights

A New View of Volcanism on Venus

by A. Deanne Rogers 12 April 202310 April 2023

Researchers present the most comprehensive catalog of Venusian volcanic edifices to date, providing new knowledge of the geological evolution of a relatively understudied planet.

A blue fishing boat in water near land.
Posted inNews

Machine Learning Helps Researchers Track Illegal Fishing

by Roberto González 1 March 20231 March 2023

Using machine learning, researchers found that nearly 20% of high seas fishing could be unauthorized.

Photograph of the ionosphere taken from the International Space Station.
Posted inEditors' Vox

The International Reference Ionosphere – A Model Ionosphere

by Dieter Bilitza 15 February 202321 February 2023

An accurate and reliable description of Earth’s ionosphere is of critical importance because of our increased reliance on satellite technology and the significant impact the ionosphere has on it.

A comparison between (left) earthquake motion derived from daily geodetic observations (blue arrows) and the approach of Golriz et al. (red arrows) and (right )the net difference between these methods.
Posted inResearch Spotlights

Improving Coseismic Slip Measurements

by Morgan Rehnberg 29 November 202111 May 2022

A physics-based method estimates the duration of earthquakes’ coseismic phase and can help improve the precision of coseismic slip models and magnitude estimates.

A layer of charged particles, known as the ionosphere, surrounds Earth, shown in purple (not to scale) in this image.
Posted inResearch Spotlights

A Step Toward Making GPS More Resilient to Space Weather

Sarah Stanley, Science Writer by Sarah Stanley 5 October 202113 October 2021

Researchers have developed a new mathematical model to more accurately capture how irregularities in Earth’s atmosphere interrupt signals from Global Navigation Satellite Systems.

The San Andreas Fault near Juniper Hills, Calif.
Posted inResearch Spotlights

A New Method Produces Improved Surface Strain Rate Maps

by Jack Lee 19 July 20215 December 2022

The transdimensional Bayesian approach handles GPS data limitations better than existing methods and may assist future seismic hazard assessment studies.

A rainy day outside the Mall of the Emirates in Dubai
Posted inNews

Can Newspaper Reporting Uncover Flood Risk?

Sarah Derouin, Science Writer by Sarah Derouin 2 November 202027 March 2023

In areas of low or no flood monitoring, archival coverage of historical flooding can help scientists make better risk predictions.

Large earthen rupture foregrounds a brightly colored school building damaged by an earthquake.
Posted inNews

Geodetic Data Pinpoint Earthquake-Prone Regions of the Himalayas

Katherine Kornei, Science Writer by Katherine Kornei 19 March 20207 October 2022

GPS measurements of the Indian and Eurasian plates reveal four locked segments most likely to produce large earthquakes.

Aerial view of the Swiss Alps
Posted inResearch Spotlights

Using GPS Sensors to Capture Key Snowpack Properties

Sarah Stanley, Science Writer by Sarah Stanley 6 June 201928 July 2022

A low-cost, two-antenna GPS setup could enable valuable snow measurements in remote locations, improving predictions of runoff and avalanche risk.

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Features from AGU Publications

Research Spotlights

Tracing Black Carbon’s Journey to the Ocean

11 July 202510 July 2025
Editors' Highlights

The Power of Naming Space Weather Events

10 July 20258 July 2025
Editors' Vox

Water Tracks: The Veins of Thawing Landscapes

25 June 202525 June 2025
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