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Modeling

Landscape view showing mountains, forests, and other vegetation within the Héen Latinee Experimental Forest north of Juneau, Alaska
Posted inResearch Spotlights

Determining Dissolved Organic Carbon Flows into the Gulf of Alaska

by David Shultz 15 January 202122 December 2021

A new model determines freshwater and dissolved organic carbon discharge to the Gulf of Alaska from one of the most geographically diverse but understudied regions on the planet.

Posted inEditors' Highlights

Deep Decarbonization? Yes We Can!

Eric Davidson, president-elect of AGU by Eric Davidson 14 January 20217 July 2025

Modeling the U.S. energy system demonstrates several pathways to net-zero CO2 emissions by 2050. The pathway with the lowest cost, 0.2–1.2% of GDP, relies on >80% contribution of renewables.

A handheld compass sits amid rocks on a beach
Posted inScience Updates

Modeling Earth’s Ever-Shifting Magnetism

by A. Chulliat, W. Brown, P. Alken, S. Macmillan and M. Paniccia 14 January 20213 November 2021

The World Magnetic Model, updated every 5 years through an international collaboration, supports numerous technologies that help us find our way.

Figures showing modeling of fault related anisotropy
Posted inEditors' Highlights

Fault Related Anisotropy in the Hikurangi Subduction Zone

by A. Becel 13 January 20218 July 2024

A new study provides the first high-resolution three-dimensional anisotropic P-wave velocity model of the shallow part of the Northern Hikurangi subduction zone offshore New Zealand.

Drone photograph of research vessel offshore Malta collecting geophysical data to map offshore freshened groundwater systems
Posted inEditors' Vox

Freshened Groundwater in the Sub-seafloor

by A. Micallef, M. Person, C. Berndt, Claudia Bertoni, A. Haroon, R. Martin-Nagle, T. Müller and E. Trembath-Reichert 11 January 202130 March 2023

Scientists are using a variety of geochemical, geophysical, and numerical methods to study offshore freshened groundwater and better understand its role in the global water cycle.

Satellite image of Hurricane Harvey swirling over the Texas coast
Posted inNews

To Make Better Hurricane Models, Consider Air Pollution

Rachel Fritts, Science Writer by Rachel Fritts 23 December 20203 November 2022

New research uses Hurricane Harvey as a case study to demonstrate the devastating power of aerosols to supercharge tropical storms.

Plot showing a crater produced by the impact of a 10 km diameter bolide impacting a model of (16) Psyche
Posted inEditors' Highlights

Predicting the Unique Shape of Craters on Asteroid (16) Psyche

by Laurent G. J. Montési 21 December 202015 February 2022

Models link the variety of crater shapes expected on (16) Psyche with the interior structure of this unique asteroid, in preparation for the arrival of the Psyche probe in 2026.

Smokestacks release smoke into the sky at an industrial site surrounded by trees and sparse buildings.
Posted inNews

The Debate over the United Nations’ Energy Emissions Projections

Kate Wheeling, freelance science writer by Kate Wheeling 18 December 20202 September 2022

A new study finds the economic factor driving the divergence between emissions trajectories in climate assessments and reality.

Cutaway model of Earth’s interior
Posted inNews

Geologists to Shed Light on the Mantle with 3D Model

by E. Gribkoff 4 December 20204 August 2023

The model, which will incorporate 227 million surface wave measurements, could help with everything from earthquake characterization to neutrino geosciences.

Six plots showing spatial distribution of steady-state groundwater aquifer salinity (colors) and flow streamlines (white) for the two-dimensional simulations of the floodplain
Posted inEditors' Highlights

Evaporation Reverses Groundwater Flow and Forms Hyper-Salinity

by D. Scott Mackay 4 December 20201 December 2022

A numerical model of groundwater-surface water systems shows how floodplain evaporation can reverse stream-groundwater flow and produce strong buoyancy changes associated with salinity.

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