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Science News by AGU

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Modeling

Schematic of information theory flow in Earth sciences
Posted inScience Updates

Using Information Theory in Earth Sciences

by C. Prieto, U. Ehret and G. Nearing 10 October 20182 November 2021

Second Workshop on Information Theory and the Earth Sciences; Santander, Spain, 16–19 May 2018

Posted inEditors' Highlights

Insensitivity of Total Sediment Flux to Hydraulic Details

by Valeriy Ivanov 6 September 201811 February 2022

The total sediment mass transported by flow under different sets of regimes is insensitive to the exact details of hydraulic forcing, but what matters is cumulative transport capacity.

Researchers look to bacterial DNA to understand river flow.
Posted inResearch Spotlights

Using Microbes to Predict the Flow of Arctic Rivers

by E. Underwood 15 May 2018

Bacterial DNA provides a good estimate of river discharge.

Posted inEditors' Highlights

Calibrating Hydrological Models by Satellite

by Marc F. P. Bierkens 2 May 2018

Hydrological models are usually calibrated using observations of streamflow, but a new method uses remotely sensed land surface temperature for this purpose.

Posted inEditors' Vox

On Integrating Sedimentology and Hydrogeology in Streambeds

by D. Partington, C. T. Simmons, R. Therrien and P. Brunner 27 April 2018

A new modeling blueprint seeks to unify sedimentology, hydrology, and hydrogeology in the modeling of streambeds.

A satellite image of an atmospheric river on 20 February 2017, which helped the American west emerge from a 5-year drought.
Posted inFeatures

How Will Climate Change Affect the United States in Decades to Come?

by D. Wuebbles, D. W. Fahey and K. A. Hibbard 3 November 201729 September 2021

A new U.S. government report shows that climate is changing and that human activities will lead to many more changes. These changes will affect sea levels, drought frequency, severe precipitation, and more.

Posted inOpinions

When Less Is More: Opening the Door to Simpler Climate Models

by L. M. Polvani, A. C. Clement, B. Medeiros, J. J. Benedict and I. R. Simpson 25 September 201729 September 2021

Earth system models are resource intensive and complex. To cut through this complexity, the Community Earth System Model project will now be embracing a hierarchy of simpler climate models.

Researchers assess how past flooding influences river meanders
Posted inResearch Spotlights

A New Model for River Meanders

by E. Underwood 2 August 201715 August 2017

A river’s twists and turns are shaped by its past flood events.

An earthworm moves over damp soil.
Posted inResearch Spotlights

Follow Earthworm Tracks to Better Simulate Water Flow in Soils

by Sarah Stanley 1 August 201715 August 2017

Incorporating paths carved by the critters and by tree roots helps scientists align simulations of tropical soils more closely with real-world data.

McFLI calculations can assist with water management decisions at tourist attractions like Bruarfoss near Reykholt, Iceland.
Posted inScience Updates

Tracking River Flows from Space

by C. J. Gleason, P.-A. Garambois and M. T. Durand 26 July 201715 August 2017

Satellite observations, combined with algorithms borrowed from river engineering, could fill large gaps in our knowledge of global river flows where field data are lacking.

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