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drought

Carved Assyrian tablet with winged figures kneeling before a tree and cuneiform script beneath
Posted inNews

Megadrought Helped Topple the Assyrian Empire

Mary Caperton Morton, Science Writer by Mary Caperton Morton 15 January 202028 February 2023

Paleoclimate records shed light on the ancient civilization’s meteoric rise and catastrophic collapse.

A road through a smoky landscape in Australia on 13 January 2020
Posted inNews

Five Environmental Consequences of Australia’s Fires

Jenessa Duncombe, Staff Writer by Jenessa Duncombe 13 January 202022 November 2021

Australia’s road to recovery may be long: Here’s a developing list of how the fires are affecting glaciers, wildlife, water supplies, and global carbon emissions.

Controlled burn in a sagebrush ecosystem in Hart Mountain National Antelope Refuge in southeastern Oregon
Posted inScience Updates

Rating Fire Danger from the Ground Up

by M. R. Levi, E. S. Krueger, G. J. Snitker, T. Ochsner, M. L. Villarreal, E. H. Elias and D. E. Peck 17 December 201929 September 2021

Soil moisture information could improve assessments of wildfire probabilities and fuel conditions, resulting in better fire danger ratings.

Lake shoreline with vegetation at sunset
Posted inNews

Dire and Drier Future for Lake Victoria

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 25 November 201931 October 2022

In the past, Lake Victoria dried out swiftly and often when rainfall was limited. Climate change might bring about those conditions again within a century.

Photo of palm trees with lots of dead fronds in canyon in Alvarado Creek
Posted inNews

Iconic Palms Add to Fire Danger in Southern California

Megan Sever, Science Writer by Megan Sever 22 November 20196 October 2021

As fires burn across Southern California, researchers examine what role nonnative vegetation plays.

Side view of individual trees generated in a lidar image
Posted inNews

The Bigger They Are, the Harder They Fall

Richard Sima, freelance science writer by Richard J. Sima 18 October 201924 March 2023

New research tracking 1.8 million trees found that tall trees died at more than twice the rate of smaller ones toward the end of extreme and persistent drought.

Bird’s-eye image of the tree canopy in an intact section of the Brazilian rain forest
Posted inNews

Deforestation Could Exacerbate Drought in the Amazon

Kate Wheeling, freelance science writer by Kate Wheeling 10 October 201915 October 2021

Researchers use high-resolution satellite images to parse the effects of land use changes on the energy balance between the rain forest and the atmosphere.

Satellite image of Congolese rain forest with white clouds
Posted inNews

Congo Rain Forest Endures a Longer Dry Season

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 25 July 201929 April 2022

The forest’s dry season has been starting earlier and ending later for decades, making parts of it vulnerable to incursions by drought-resistant ecosystems.

Michael Cosh installs soil moisture sensors near Stillwater, Okla., at the Marena, Oklahoma In Situ Sensor Testbed.
Posted inScience Updates

Building a One-Stop Shop for Soil Moisture Information

by J. A. Clayton, S. Quiring, T. Ochsner, Michael Cosh, C. B. Baker, T. Ford, J. D. Bolten and M. Woloszyn 13 June 20195 January 2022

With a recent infusion of support from the federal government, the National Soil Moisture Network is moving ahead with its goal of integrating soil moisture data across the United States.

The south fork of the Eel River in California
Posted inResearch Spotlights

Answer to California Landscape Riddle Lies Underground

Elizabeth Thompson by Elizabeth Thompson 30 May 201915 November 2021

Scientists link vegetation mosaics in California to patterns of weathered bedrock.

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