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drought

意大利一个干涸的、多边形的湖盆展现了 2017 年的干旱状况。
Posted inResearch Spotlights

气候变暖正在改变欧亚大陆的干旱状况

Sarah Derouin, Science Writer by Sarah Derouin 15 May 202515 May 2025

研究人员利用树木年轮记录重建水文气候模式,并找出干旱的驱动因素。

A satellite image of dry, brown land with a blue-green river winding horizontally through the center of the image.
Posted inResearch & Developments

Mexico Will Give U.S. More Water to Avert More Tariffs

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 29 April 20255 May 2025

Mexican and U.S. officials announced that Mexico will immediately transfer some of its water reserves to the United States and also allow a larger share of the Rio Grande River to flow into the United States.

A gif flips back and forth between two images of the Po River Basin. In June 2020, it appears much greener than in June 2022.
Posted inResearch Spotlights

Modeling the Past, Present, and Future of Drought

by Rebecca Owen 18 April 202518 April 2025

A new study combines historical observations, climate modeling, and data from tree rings to create a fuller picture of historic as well as potential drought conditions.

A large machine irrigates crops as the Sun rises in the background. The machine stretches into the distance out of frame and looks similar to a skeleton of a creature with many sets of legs.
Posted inResearch Spotlights

“Thirstwaves” Are Growing More Common Across the United States

by Rebecca Owen 7 April 20257 April 2025

Like heat waves, these periods of high atmospheric demand for water can damage crops and ecosystems and increase pressure on water resources. New research shows they’re becoming more severe.

Graphs from the study.
Posted inEditors' Highlights

Investigating Rainfall-Rich Periods in North America

by Alberto Montanari 3 April 20253 April 2025

A record of soil moisture that extends over one thousand years allows for the investigation of occurrence and causes of modern and historical rainfall-rich periods.

The Los Angeles River passes under a bridge at sunset.
Posted inNews

Seismometers Provide Fuller Picture of Los Angeles Groundwater

by Grace van Deelen 19 March 202519 March 2025

A new method to evaluate deep aquifers shows even torrential rains haven’t fully replenished groundwater beneath Los Angeles.

A cracked, polygonal, dried lake basin in Italy shows what the drought conditions were like in 2017.
Posted inResearch Spotlights

A Warming Climate Is Shifting Eurasian Drought Conditions

Sarah Derouin, Science Writer by Sarah Derouin 24 February 202515 May 2025

Researchers use tree ring records to help reconstruct hydroclimate patterns and isolate drivers of drought.

A rocky riverbed with two small streams surrounded by gray mountains. There are some green patches of plants and some snow on the peaks.
Posted inNews

Megadroughts Have Grown in Size and Scope

by Rebecca Owen 6 February 20256 February 2025

A new study maps and ranks the largest, longest-lasting, and most severe multiyear droughts from 1980 to 2018.

A satellite image of an atmospheric river over the ocean heading toward California
Posted inNews

California Storms Recharged Watersheds, Geodesy Data Reveal

by Caroline Hemphill 13 December 202413 December 2024

The atmospheric rivers that soaked the state in early 2023 released enough water to warp the ground and douse a deep drought.

A satellite image shows the white storm clouds of a cyclone swirling off the arid coast of Libya.
Posted inNews

Torrents of Sediment-Laden Water Worsened Disastrous Libyan Floods

by Elise Cutts 25 October 202425 October 2024

Drought followed by torrential rain can unleash deadly floods in arid regions, like those that affected Libya in 2023.

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Features from AGU Publications

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River Alkalinization and Ocean Acidification Face Off in Coastal Waters

21 May 202521 May 2025
Editors' Highlights

Creep Cavitation May Lead to Earthquake Nucleation

22 May 202521 May 2025
Editors' Vox

Decoding Crop Evapotranspiration

6 May 20256 May 2025
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