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seasonal variability

An aerial photograph of a remote, forested lake surrounded by forest.
Posted inFeatures

Hunting for Methane Hot Spots at the Top of the World

Jenessa Duncombe, Staff Writer by Jenessa Duncombe 26 April 202326 April 2023

A visit to an Alaskan wetland with some of the world’s highest lake marsh methane emissions brings scientists one step closer to understanding the phenomenon.

An interconnected network of bluish-gray ponds cuts through green wetlands. Larger lakes loom in the background.
Posted inResearch Spotlights

Neural Networks Map the Ebb and Flow of Tiny Ponds

Sarah Derouin, Science Writer by Sarah Derouin 13 April 202313 April 2023

Ponds play an outsized role in carbon emissions, but their size makes them hard to track. Enter machine learning.

Imagen de nieve marina, el material orgánico que se hunde desde las aguas superficiales hasta la profundidad del océano.
Posted inResearch Spotlights

La estacionalidad del ciclo del carbono oceánico

Sarah Derouin, Science Writer by Sarah Derouin 3 April 2023

Un grupo de científicos investigaron el impacto de los cambios estacionales en la cantidad y velocidad del carbono que viaja desde la superficie al océano profundo.

A long cylinder of ice on a table
Posted inNews

Ice Cores Record Long-Ago Seasons in Antarctica

by Caroline Hasler 17 March 202316 May 2023

Researchers used ice core data to reconstruct seasonal temperatures throughout the Holocene. The results link especially hot summers with patterns in Earth’s orbit.

A satellite image of land, water, and white ice
Posted inNews

Rivers in the Sky Are Hindering Winter Arctic Sea Ice Recovery

Rachel Fritts, Science Writer by Rachel Fritts 13 March 202330 January 2024

Climate change is increasing the frequency of moisture-dumping atmospheric rivers in the Arctic. The storms are pushing back sea ice at a time of year when it should be expanding.

Black hills covered in snow in front of a deep blue sea and tall white mountains.
Posted inResearch Spotlights

A Deeper Dive into Wintry, Carbon-Absorbing Antarctic Waters

Aaron Sidder, freelance science writer by Aaron Sidder 8 March 20238 March 2023

Cold surface water in the Southern Ocean is a critical component in ocean carbon uptake. A new study profiles it using state-of-the-art research techniques.

Two small tree swallows peek out of a nest box hanging in a tree.
Posted inNews

Climate Extremes Threaten California’s Central Valley Songbirds

by J. Besl 16 February 202316 February 2023

A “nestbox highway” in California’s Central Valley is guiding songbirds to safe nesting sites and giving scientists a peek at fledgling success in a changing climate.

Acercamiento de un arbusto de lilas, mostrando flores rodeadas de hojas sobre un fondo de un cielo azul parcialmente nublado.
Posted inNews

Las hojas están brotando más temprano en el Sendero de los Apalaches

by Kate Hull 15 February 202315 February 2023

Imágenes satelitales de nuevas y brillantes hojas revelan cambios que producirán un efecto de cascada en diversos ecosistemas al este de los Estados Unidos.

Field photos of burned forest and graphs showing reflectance properties.
Posted inEditors' Highlights

Summer Fire Means Winter Melt

by Valeriy Ivanov 2 February 20232 February 2023

Changing wildfire activity in California may impact seasonal hydrology by causing intense snowmelt during winter in areas where fires extend into higher elevation zones.

Maps showing distribution of different drought types.
Posted inEditors' Highlights

Streamflow Drought Intensification in the European Alps

by Valeriy Ivanov 1 February 202331 January 2023

A five-decade analysis of drought generation processes in the Alps shows their changing seasonality in high-elevation basins with increasingly frequent droughts caused by a lack of snowmelt water.

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Research Spotlights

Mapping the Ocean Floor with Ancient Tides

6 May 20256 May 2025
Editors' Highlights

First Benchmarking System of Global Hydrological Models

7 May 20257 May 2025
Editors' Vox

Decoding Crop Evapotranspiration

6 May 20256 May 2025
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