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seasonal variability

The Yenisei and Ob Rivers in Russia flow into the Kara Sea
Posted inResearch Spotlights

How Yellowing Seas Will Affect Ocean Temperatures

by E. Underwood 12 April 20191 February 2023

Materials that trap solar heat at the sea surface could cause more extreme temperatures.

Whitecaps dot a stormy sea
Posted inNews

Take Weather Prediction with a Grain of Salt and It Gets Better

Bas den Hond, Science Writer by Bas den Hond 12 April 201925 July 2022

Sea surface salinity is starting to rival other methods for seasonal rain forecasting.

Scientists in Arctic
Posted inNews

The Ice Nurseries of the Arctic Are Melting

Jenessa Duncombe, Staff Writer by Jenessa Duncombe 11 April 20194 April 2023

Ice formed in coastal nurseries along Russia’s Arctic coast is melting before it can float far offshore. Scientists are worried about what that means for wildlife.

Posted inEditors' Highlights

A Step Closer to Quantifying Global Photosynthesis in Real Time

by Valeriy Ivanov 12 March 20197 July 2022

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.

Cherry trees blossom near the Tidal Basin in Washington, D.C.
Posted inNews

Cherry Blossoms’ Peak Bloom Is an Indicator of Climate Change

by Randy Showstack 7 March 20194 April 2023

Projected peak bloom days are around the historic average this year, but experts say climate change is altering the long-term blooming schedule.

The view near McMurdo Station, Antarctica
Posted inResearch Spotlights

Observations Show Gravity Waves Above Antarctica Dance in Winter

by Terri Cook 5 February 20198 March 2022

Year-round observations show gravity waves above Antarctica exhibit seasonal patterns that peak in winter, which could help researchers trace the source of this mysterious phenomenon.

Drought effects on a cornfield in Texas
Posted inScience Updates

Subseasonal to Decadal Predictions: Successes and Challenges

by G. Danabasoglu, F. Vitart and W. J. Merryfield 31 January 20192 February 2023

International Conferences on Subseasonal to Decadal Prediction; Boulder, Colorado, 17–21 September 2018

DSCOVR Earth from space
Posted inNews

One-Pixel Views of Earth Reveal Seasonal Changes

Katherine Kornei, Science Writer by Katherine Kornei 9 January 201929 March 2023

By averaging satellite images of the Earth down to a single pixel, researchers trace how the planet’s mean color varies over time, results that inform observations of distant exoplanets.

Pyrenees in Catalonia Spain
Posted inNews

Microbes Rain Down from Above, to the Tune of the Seasons

Jenessa Duncombe, Staff Writer by Jenessa Duncombe 8 January 201923 March 2023

Every time snow or rain falls, it brings with it microbes from high in the atmosphere. Could those microbes have a seasonal signal, just like the plants on the land below?

Posted inEditors' Vox

The Value of Snow

by J. D. Lundquist 18 December 201828 February 2023

Investments in snow pay high-dollar dividends.

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Features from AGU Publications

Research Spotlights

Maybe That’s Not Liquid Water on Mars After All

21 November 202521 November 2025
Editors' Highlights

The Language of the Crust: Investigating Fault-to-Fault Interactions

21 November 202519 November 2025
Editors' Vox

Echoes From the Past: How Land Reclamation Slowly Modifies Coastal Environments

19 November 202519 November 2025
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