Browse Journal Highlights

Highlights include enriched and related content of notable journal articles presented on Eos org AGU org AGU On Demand and in AGU journals

“North Pacific Nutrient Leakage” During Glacials

Helen Bostock, Associate Editor, Paleoceanography

Editors' Highlight— Carbon isotope data suggest an alternative source of nutrients to the Eastern Equatorial Pacific during glacial periods. The source of nutrients to the Eastern Equatorial Pacific (EEP) is primarily from the Southern Ocean via “ocean tunneling,” a process of transferring nutrients.... more

Resolving a Mystery of the Ages

Terri Cook, Freelance Writer

From Research Spotlights— High-precision radiometric dates shed new light on the puzzling 600,000-year disparity in the timing of one of Earth’s most pivotal timescale boundaries.  The transition between the Eocene and Oligocene epochs, which occurred about 34 million years ago, is marked.... more

Microfossils Illuminate Ancient Ocean Currents

Elizabeth Thompson, Freelance Writer

From Research Spotlights— Researchers use dissolved silicon concentrations to map out how currents may have changed millennia ago in the Pacific. Globalization, the close interaction of forces around the globe, is typically thought of as a relatively recent concept. For Earth’s oceans, however,.... more

Past seawater temperature reconstruction from northeast Atlantic Ocean

Editor’s Highlight—   This manuscript presents an annually resolved temperature record over the last 200-plus years from high northern latitudes, where the more extreme effects of global warming are observed. The paper extends the record to pre-instrumental times, thus making it possible to quantify.... more

New hypothesis for changes in deep-water circulation in the Southern Ocean


Editor’s Highlight—   This study examines changes in deep-water circulation in the Southern Ocean between the last glacial maximum and today, specifically changes in circulation associated with Drake Passage, the deep-water channel between Cape Horn and the South Shetland Islands that connected the.... more

Proxy data used to reconstruct 10,000 years of Indian monsoons

Editors’ Highlight— This paper provides detailed reconstruction of changes in monsoonal precipitation over India over the last 10,000 years and comparison with proxy results. The authors conclude that teleconnections from the equatorial Pacific contributed to, if not accounted for, greater early- to.... more

Cores reveal ocean circulation changes during the last deglaciation

Editor’s Highlight—   This paper discusses the complexity of changes in the Atlantic Meridional Overturning Circulation as reconstructed from cores in the western equatorial Atlantic Ocean. Understanding feedbacks between climate change and Atlantic circulation is of major importance in attempts to.... more

New sediment core reveals details about Cretaceous Oceanic Anoxic Event

Editor’s Highlight—   A newly-drilled sediment core in the Tarfaya Basin, Morocco, has captured an extraordinarily detailed sequence of the Cretaceous Oceanic Anoxic Event 2 (OAE2). This paper presents the results of combined carbon isotopic-micropaleontological-trace metal study on the core. The expanded.... more

Improving Our Understanding of El Niño in a Warm Climate

Jenny Lunn, Contributing Writer

From Research Spotlights— A new study seeks to bring together the strongest features of proxy data and climate models to reduce uncertainties in reconstructions of past El Niño behavior.  The El Niño–Southern Oscillation (ENSO) has been a preoccupation of scientists in recent years. It has.... more