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paleoclimatology & paleoceanography

South Pole Station, seen from a nearby ice core drilling site. Isotope data from this core provide info on past climates.
Posted inScience Updates

Stable Isotopes in Paleoclimate Reanalysis

by E. J. Steig, D. M. Anderson and G. J. Hakim 21 September 201724 March 2023

Second Annual Workshop of the Last Millennium Reanalysis Project; Friday Harbor, Washington, 25–26 October 2016

Modern continents mapped onto Pangaea.
Posted inNews

Paleomagnetic Data Hint at Link from Earth’s Core to Continents

Bas den Hond, Science Writer by Bas den Hond 15 June 20177 October 2021

Earth’s magnetic field waxes and wanes as supercontinents form and break up, suggests a new study postulating a direct connection between our planet’s crust and its core.

A new study links Milankovitch cycles to the onset of glacial periods
Posted inResearch Spotlights

How Variations in Earth’s Orbit Triggered the Ice Ages

by L. Strelich 1 June 201716 August 2022

Researchers pinpoint how Milankovitch cycles have driven ice growth and influenced the timing of glacial periods.

For 17,000 years, rain has washed sediments down the slopes of New Zealand’s Southern Alps, depositing them in Lake Ohau.
Posted inScience Updates

Shifting Winds Write Their History on a New Zealand Lake Bed

by G. B. Dunbar, M. J. Vandergoes and R. H. Levy 16 May 201715 February 2023

A team of scientists finds a year-by-year record of climate history spanning the past 17,000 years at the bottom of a South Island lake.

Eliot Glacier on Oregon’s Mount Hood.
Posted inScience Updates

Reconstructing Past Sea Level Change to Understand the Future

by E. Steponaitis, Anastasia G. Yanchilina and H. D. Bervid 4 May 201728 October 2021

PALSEA2 2016 Workshop: Sea-Level Budgets at Decadal to Millennial Time Scales to Bridge the Paleo and Instrumental Records; Mount Hood, Oregon, 19–21 September 2016

New research links ocean acidification and its effect on extinction events to better understand Earth’s ancient seas.
Posted inResearch Spotlights

Exploring Ancient Ocean Acidification in the Rock Record

Alexandra Branscombe by A. Branscombe 10 March 201712 September 2022

Scientists studying Earth's ancient oceans use a new method to measure ocean acidification and its effect on extinction events.

Drilling reveals the mechanics at play behind an ancient eruption.
Posted inResearch Spotlights

Deep Drilling Reveals Puzzling History of Campi Flegrei Caldera

Alexandra Branscombe by A. Branscombe 1 February 20172 May 2022

Results show that caldera collapse attributed to a super eruption almost 40,000 years ago was smaller than what scientists expected. So what might have really happened?

Floodwaters in the Elbe River reached an all-time high in August 2002, inundating this street in Dresden.
Posted inScience Updates

Using Archives of Past Floods to Estimate Future Flood Hazards

by T. Swierczynski, M. Ionita and D. Pino 13 January 201723 January 2023

Cross Community Workshop on Past Flood Variability; Grenoble, France, 27–30 June 2016

View of the Grand Canyon of Yellowstone National Park
Posted inNews

Pinpointing the Trigger Behind Yellowstone's Last Supereruption

by A. Woodward 4 January 201712 September 2022

Geologists suggest that mixing of magma melt pockets could have caused the explosion a little more than 600,000 years ago.

Scientist with guano core.
Posted inNews

Bat Guano: A Possible New Source for Paleoclimate Reconstructions

JoAnna Wendel, freelance science writer and illustrator by JoAnna Wendel 14 December 20164 October 2021

Nitrogen isotopes within samples of bat excrement accurately reflect modern precipitation patterns. So could guano serve as a paleoclimate record?

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