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geodesy

Panel showing VLBI, SLR, and GNSS systems
Posted inNews

Evolving the Geodetic Infrastructure

by Jack Lee 28 July 202119 November 2021

Enhancements to the largely invisible framework will enable researchers to investigate pressing questions about our planet’s future.

Posted inAGU News

Kristine M. Larson Receives 2020 Charles A. Whitten Medal

by AGU 25 May 202128 October 2021

Kristine M. Larson was awarded the 2020 Charles A. Whitten Medal at the virtual AGU Fall Meeting in December. The medal is for “outstanding achievement in research on the form and dynamics of the Earth and planets.”

Three maps of the study area showing the probability of a specific density value occurring in different models.
Posted inEditors' Highlights

Understanding Where and How Magma is Stored

by M. Pistolesi 17 May 202112 October 2021

Gravity measurements reveal depth and storage conditions of rhyolitic magma reservoirs beneath the Laguna del Maule volcanic field in Chile.

Black and white photo showing a damaged road and storefronts in Anchorage, Alaska, following the March 1964 earthquake
Posted inScience Updates

Slipping and Locking in Earth’s Earthquake Factories

by N. Bartlow, L. M. Wallace, J. Elliott and S. Schwartz 24 March 202122 March 2022

Geodetic observations collected during back-to-back decadal research campaigns have revealed crucial new insights into the start–stop and slow-motion behavior of subduction zones.

View of Long Valley Caldera in California with snow-covered mountains in the background
Posted inResearch Spotlights

How Heavy Rain and Drought Influence California Crustal Strain

by Kate Wheeling 27 January 20216 October 2021

New research using continuous GPS data reveals how multiyear precipitation patterns can amplify the effects of hydrological loading on crustal deformation.

Illustration of a lot of debris orbiting Earth
Posted inOpinions

Charting Satellite Courses in a Crowded Thermosphere

by S. Bruinsma, M. Fedrizzi, J. Yue, C. Siemes and S. Lemmens 19 January 20213 November 2021

As the number of satellites in low Earth orbit grows by leaps and bounds, accurate calculations of the effects of atmospheric drag on their trajectories are becoming critically important.

A researcher checks a GPS ground motion sensor amid the rocky, barren landscape of the Altiplano-Puna Plateau in the southern Bolivian Andes
Posted inScience Updates

Using Earthquake Forensics to Study Subduction from Space

by S. Schneider and J. R. Weiss 19 January 202118 January 2022

Researchers combined satellite geodetic measurements of surface motion with a new geophysical data inversion method to probe the Chilean subduction zone in the wake of the 2010 Maule earthquake.

Color image of the planet Mars
Posted inResearch Spotlights

First Detection of a Built-In Wobble on Another Planet

by Jack Lee 4 January 202128 October 2021

Spacecraft find that Mars oscillates 10 centimeters off its axis of rotation.

Iceberg that has broken off from the Antarctic ice sheet
Posted inNews

Gravity Data Reveal Unexpected Antarctic Ice Variations

by S. Melchor 7 December 20206 September 2022

A new analysis of long-term satellite records shows the East Antarctic Ice Sheet is unexpectedly dependent on fluctuations in weather. This study may improve models of how much sea levels will rise.

Haze covers portions of Bangladesh, eastern India, and the Bay of Bengal in this satellite image
Posted inFeatures

The Bay of Bengal and the Curious Case of the Missing Rift

by M. Talwani and M. Desa 2 October 20209 November 2021

In a classic detective story, clues from data new and old helped researchers reveal the puzzling chain of tectonic events that followed the Early Cretaceous split between India and Antarctica.

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Features from AGU Journals

RESEARCH SPOTLIGHTS
JGR: Solid Earth
“New Tectonic Plate Model Could Improve Earthquake Risk Assessment”
By Morgan Rehnberg

EDITORS' HIGHLIGHTS
AGU Advances
“Eminently Complex – Climate Science and the 2021 Nobel Prize”
By Ana Barros

EDITORS' VOX
Perspectives of Earth and Space Scientists
“New Directions for Perspectives of Earth and Space Scientists”
By Michael Wysession


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