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Biogeochemistry

A person in a wetsuit wades through an underwater cloud of salps.
Posted inResearch Spotlights

Jet-Propelled Tunicates Pump Carbon Through the Oceans

by Aaron Sidder 19 January 202319 January 2023

New research reveals that blooms of the widespread gelatinous zooplankton—along with their feces, daily vertical migrations, and carcasses—increase marine carbon export.

Posted inEditors' Highlights

Roadside Plants Witness COVID Traffic

by E. Davidson 7 January 20237 January 2023

Radiocarbon in roadside plants revealed a decline in auto emissions during COVID lockdown and a 2021 rebound. Could this improve emission estimates in countries without CO2 monitoring infrastructure?

Figure 1 from the paper, showing a schematic of key processes controlling coastal carbon dynamics.
Posted inEditors' Highlights

Substantial Advance Towards a Global Coastal Carbon Model

by Andreas Oschlies 27 September 202220 October 2022

First simulations of a new biogeochemistry-circulation coastal grid refinement demonstrate seamless inclusion of small-scale coastal processes in a state-of-the-art Earth system model.

An image of fish and bubbles in the ocean
Posted inResearch Spotlights

Short-Term Events Can Shrink the Habitable Zone in Oceans

by Sarah Derouin 12 August 202212 August 2022

A new study looks at habitat reduction during low-oxygen events, spurring the question, Could short-term events provide a window into the long-term health of oceans?

Northern California’s Eel River watershed
Posted inResearch Spotlights

Small Catchments Sustain Silicon Signatures Following Storms

by Jack Lee 10 June 202229 June 2022

Watersheds have unique patterns of silicon export due to differences in subsurface water routing and biogeochemical reactions.

Satellite image of the Mississippi River near Memphis, Tenn., with a false-color overlay
Posted inScience Updates

A Sharper Look at the World’s Rivers and Catchments

by Bernhard Lehner, Achim Roth, Martin Huber, Mira Anand and Michele Thieme 12 April 20221 June 2022

Digital hydrographic maps have transformed global environmental studies and resource management. A major database update will provide even clearer and more complete views of Earth’s waterways.

Photo of the Makahiku Falls in the Haleakala National Park Maui, Hawaii
Posted inEditors' Vox

Evaluating the Impact and Reach of Biogeochemical Cycles

by K. Dontsova, Z. Balogh‐Brunstad and G. Le Roux 20 September 20211 October 2021

A new book examines flow of the elements in the biosphere from biological drivers to human influences, and explores the analytical and computational methods used to access biogeochemical cycles.

Plot of sea surface temperature from cold wakes associated with tropical cyclones (blue) and associated increasing in trend in the tropical cyclone induced primary production of Chlorophyll-a concentration (red).
Posted inEditors' Highlights

Tropical Cyclone Induced Increase in Ocean Primary Production

by Suzana Camargo 27 July 202128 September 2021

A positive trend in tropical cyclone induced ocean mixing and primary production is compensating the overall decline in global primary production due to anthropogenic climate change.

Illustration of a lightning storm over volcanic land on early Earth
Posted inNews

Cloud-to-Ground Lightning May Have Struck a Key Ingredient for Life

by Jackie Rocheleau 30 April 202129 September 2021

On early Earth, rock created by lightning strikes to the ground likely held a form of phosphorus necessary for prebiotic chemistry.

A soil profile from the Wind River Range
Posted inEditors' Vox

Exploring the Engine and Drivers of Soil Formation

by A. G. Hunt, M. Egli and B. A. Faybishenko 26 February 20211 October 2021

A new book presents a multidisciplinary perspective on soil, exploring it as a nexus for water flow, near surface (bio)geochemistry, erosion and deposition, and biologically coupled nutrient cycling.

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