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CC BY-NC-ND 2019

Portrait of geophysicist Dimitri Komatitsch
Posted inNews

Dimitri Komatitsch (1970–2019)

by J. Tromp and S. Chevrot 20 March 20192 March 2022

Dimitri Komatitsch had a profound impact on computational seismology and embodied the notion of open-source, collaborative research.

An aerial view of Waquoit Bay, a shallow estuary on Cape Cod, Mass.
Posted inResearch Spotlights

When the River Meets the Sea: Estuary Sediments and Hypoxia

Elizabeth Thompson by Elizabeth Thompson 20 March 201921 March 2022

Scientists know that low-oxygen dead zones are growing worldwide. New research sheds light on what that will mean for estuary systems if trends continue.

A dummy instrument familiarizes a resident with the critical zone observatory project collecting data near his home.
Posted inScience Updates

Monitoring Ecosystem Health in India’s Food Basket

by S. Gupta, S. H. Karumanchi, S. K. Dash, S. Adla, S. Tripathi, R. Sinha, D. Paul and I. S. Sen 20 March 20196 February 2023

A new critical zone observatory in India’s Ganga Basin helps researchers and farmers understand and improve the ways that human activities shape environmental processes.

Posted inEditors' Highlights

Improving Retrievals for Vertically Inhomogeneous Warm Clouds

by Z. Li 20 March 201913 February 2023

Cloud droplet size changes with height, but passive sensors are virtually blind to see it; however, combining passive with active sensors helps profile it in vertically inhomogeneous warm clouds.

UC Berkeley professor of fluvial geomorphology Luna Leopold writes or draws on tablet during field work.
Posted inOpinions

Luna B. Leopold: Geoscience Pioneer

by K. Prestegaard 19 March 201915 March 2023

He conducted river morphology research based on systematic and reproducible measurements, pushing fluvial hydrology to become a more quantitative science.

A traffic jam in Delhi, India
Posted inResearch Spotlights

Ozone Pollution Deaths in India Higher Than Previously Thought

by E. Underwood 19 March 20199 September 2024

Reducing emissions could avert more than 300,000 deaths per year by 2050.

Charred trees in the aftermath of a fire in Mali
Posted inResearch Spotlights

A 192,000-Year Record of Northwest African Fire History

by Terri Cook 19 March 20197 October 2021

Biomarker analyses from an offshore sediment core suggest that increased fire occurrence around 55,000 years ago coincided with increased fuel loads and human settlement in this region.

Researchers measure soil infiltration capacity outside a private residence
Posted inResearch Spotlights

Strategies to Improve Urban Hydrology

Aaron Sidder, freelance science writer by Aaron Sidder 18 March 201930 March 2023

Cities can reduce surface runoff and increase groundwater recharge by encouraging their residents to implement simple, hydrologic modifications on individual buildings and single-family parcels.

Explosion and pyroclastic flows at El Reventador volcano.
Posted inScience Updates

Ecuador’s El Reventador Volcano Continually Remakes Itself

by M. Almeida, H. E. Gaunt and P. Ramón 18 March 20192 May 2022

A research team from Ecuador’s Geophysical Institute keeps a close eye on an unusually active and unstable volcano in the nation’s remote jungles.

Posted inEditors' Highlights

Using Radioactive Tracers to Determine the Ages of Streamflow

by Ilja van Meerveld 18 March 20197 March 2022

Radioactive isotope tracers can be used to determine the relationship between the ages of water that is stored in soil and bedrock, water in streams, and the water used by vegetation.

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