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Eos

Eos

Science News by AGU

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Valeriy Ivanov

Editor, Geophysical Research Letters

Two charts comparing saturated hydraulic conductivity as function of clay content for temperate and tropical environments.
Posted inEditors' Highlights

Not All Clays are Made Equal – and it Matters for Hydrology

by Valeriy Ivanov 10 February 202215 March 2022

Soil clay content is an important characteristic that affects many hydraulic and mechanical properties of soil; clay mineral type is important for their prediction.

Diagram showing how thousands of years of evolution links three characteristics: the maximum lengths of tree roots, how close these roots are to a groundwater source, and whether or not trees use groundwater.
Posted inEditors' Highlights

Evolution is More Important than Environment for Water Uptake

by Valeriy Ivanov 8 February 20223 May 2022

Despite conventional assumptions, a new study shows that evolutionary proximity of species defines root water uptake strategies, not their position in landscape or ambient environment.

Figure showing channel cross section geometry and erosion potential simulated with a comprehensive morphodynamic model at different stages of the channel evolution
Posted inEditors' Highlights

Stream Hydraulic Geometry 1.01

by Valeriy Ivanov 7 December 20201 December 2020

New research provides a theoretical explanation of channel cross section geometry dependence on flow rate that is commonly observed and described with power-laws.

Charts showing seasonal cycles of events caused by precipitation on snow
Posted inEditors' Highlights

Atmospheric Rivers Trigger Heavy Snowmelt in Western USA

by Valeriy Ivanov 13 December 20195 December 2019

A rare atmospheric phenomenon that transports large quantities of water vapor into the coastal watersheds of the western USA is responsible for up to 10–20% of intense snowmelt events in the region.

Map showing how much terrestrial water storage in some of the world’s major river basins contributes to sea level rise.
Posted inEditors' Highlights

A Closure on Sea Level Rise Budget

by Valeriy Ivanov 27 November 201928 October 2021

Terrestrial water loss may explain the lack of previous budget closure in global mean sea level rise.

An illustration of rainfall estimates from ground-based radar and spaceborne Tropical Rainfall Measuring Mission (TRMM) radar
Posted inEditors' Highlights

Machine Learning Improves Satellite Rainfall Estimates

by Valeriy Ivanov 31 October 201924 October 2019

A new deep learning approach bridges ground rain gauge and radar data with spaceborne radar observations of Tropical Rainfall Measuring Mission to improve precipitation estimation.

Maps showing flooding near Houston after Hurricane Harvey in 2017
Posted inEditors' Highlights

Future Remote Sensing Mission Holds Promise for Flood Monitoring

by Valeriy Ivanov 28 October 201924 October 2019

The 2021 Surface Water and Ocean Topography (SWOT) mission will measure water surface elevation, slopes, and inundations of rivers as narrow as 50 meters.

Graph showing performance of remote sensing-based model for leaf area
Posted inEditors' Highlights

Tropical Forests May Have More Canopy Than Previously Thought

by Valeriy Ivanov 30 August 201926 August 2019

A rare attempt to directly estimate leaf area in a tropical African broadleaved forest suggests that there may be more tree foliage than previously estimated.

Figure showing observed and modeled rates of land-surface warming relative to near-surface air during dry spells
Posted inEditors' Highlights

Diagnosing Soil Moisture Impacts on Model Energy Fluxes

by Valeriy Ivanov 13 June 201922 April 2022

Do climate models truthfully mimic how drying soil affects land-surface budget partition?

Posted inEditors' Highlights

A Step Closer to Quantifying Global Photosynthesis in Real Time

by Valeriy Ivanov 12 March 2019

High spatial and temporal resolutions of a data set on a proxy for plant photosynthesis, as well as contiguous global coverage, have great utility for a variety of applications.

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From AGU Journals

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By M. K. Clark et al.

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“Probabilistic Description of Streamflow and Active Length Regimes in Rivers”
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