Journal Highlights

Two ice core records reconstruct paleoclimate in North Pacific

Editor’s Highlight—

 

This paper presents a long-term record of sea salt accumulation in the Denali ice core from Alaska, which is interpreted as a time series of the strength of the wintertime Aleutian Low pressure system. The main conclusions are that the strength of the Aleutian Low has been increasing since the mid-18th century, and the Aleutian Low strength during the instrumental time period is exceptional for the last millennium. The authors hypothesize that a rise in tropical sea surface temperatures may be the cause of this trend. This is an impactful piece of work on recent climate. The remarkable replication in the two new ice cores and complimentary data from Mount Logan is significant and will be of great use to other researchers working on the paleoclimate of the North Pacific sector, as well as at lower latitudes and modeling.

RSS

Recent Highlights Across AGU Publications

Eos.org: Earth & Space Science News

View more Earth and space science news from Eos

Download the App

New Android App Available!

Google Play Store Logo

Download the Geophysical Research Letters app from the Google Play Store

iOS App for iPad or iPhone

GRL IOS App

Download the Geophysical Research Letters app from the Apple store


AGU Career Center


AGU Unlocked


Featured Special Collection

Early Results: Juno at Jupiter 

Early results from Juno's mission at Jupiter including approach to Jupiter and the first perijove pass (PJ1). Juno's scientific objectives include the study of Jupiter's interior, atmosphere and polar magnetosphere with the goal of understanding Jupiter's origin, formation and evolution. This collection of papers provides early results from Juno's measurements of the gravity and magnetic fields, deep atmospheric microwave sounding, infrared, visible and ultraviolet images/spectra and an array of fields and particles instruments as well as context for the early results with respect to current theory and models of Jupiter's formation and evolution. Topics include both Juno - Jupiter related theoretical models and data analysis as well as collaborative observations made from Earth based assets.