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dendrochronology

Tree rings shown on a cut piece of timber
Posted inFeatures

Finding Climate History in the Rafters of New York City Buildings

Jenessa Duncombe, Staff Writer by Jenessa Duncombe 22 February 202322 February 2023

When renovating in the Big Apple, you might acquire a several-hundred-year-old climate database along with your new kitchen and bath.

A person stands amid tall trees on a lush green mountainside.
Posted inResearch Spotlights

Amazon Basin Tree Rings Hold a Record of the Region’s Rainfall

Rachel Fritts, Science Writer by Rachel Fritts 11 October 202221 June 2023

New research provides a 200-year reconstruction of interannual rainfall in the Amazon basin using oxygen isotopes preserved in tree rings in Ecuador and Bolivia.

Logs, sticks, and branches that washed up on the shores of Iceland are piled on a beach.
Posted inNews

Melting Sea Ice May Mean the End of Driftwood in Iceland

Richard Sima, freelance science writer by Richard J. Sima 25 August 202224 March 2023

Driftwood floats thousands of kilometers from Siberia to Iceland, but it may drift no longer by 2060 due to climate change.

Photomicrograph of tree ring cell density from open to tight showing the repeating pattern of seasonal growth.
Posted inEditors' Highlights

How Hot Was the Summer of 1783 Really? Trees Tell Tales

by Sarah Feakins 20 April 20224 January 2023

Volcanoes, heat waves, and tree rings – getting the seasonal story straight – a new study finds that volcanic fog lowered summer tree ring density despite the heat.

A river in Katherine, Northern Territory, Australia
Posted inResearch Spotlights

Tree Rings Reveal a Puzzling Trend in Monsoon Intensity

by Saima May Sidik 31 March 202221 July 2022

Tree rings confirm that in northern Australia, the past 40 years have experienced more rain than any similar length of time in the past 600 years.

A photo of a ponderosa pine forest in Arizona
Posted inNews

Tree Carbon Data That Ring True

by Nancy Averett 15 March 202215 March 2022

An international group of researchers may have found a way to better account for carbon storage in forests.

Trees with a view of Italy’s Mount Etna behind.
Posted inNews

Supergreen Trees Can Signal Sites of Eruptions

by J. Besl 8 November 202126 April 2022

Tree core chemistry can explain what happened before Mount Etna’s 2002 eruption and suggests that trees could play a role in rebuilding past eruptions.

Cross section of Chilean radiata pine
Posted inResearch Spotlights

Understanding Tremors Through Tree Rings

Kate Wheeling, freelance science writer by Kate Wheeling 21 October 202110 November 2021

Researchers look to carbon isotopes and cell-level wood anatomy to understand how seismic-induced changes in water availability affect tree growth.

View of the Brahmaputra River with the sun low on the horizon
Posted inScience Updates

Tree Rings Reveal a 700-Year Record of Flooding in Bangladesh

by Mukund Palat Rao and Benjamin I. Cook 15 October 202115 October 2021

Trees tell of a wetter past along the Brahmaputra River and, combined with climate modeling, suggest heightened future flood risks in one of the world’s most densely populated areas.

英国布里斯托动物园一种未知树种的生长年轮图片
Posted inResearch Spotlights

树木年轮显示了最新发现的极端太阳活动事件记录

by Morgan Rehnberg 11 August 202121 February 2023

对树木年轮物质的光谱分析表明,碳-14浓度在一年内急剧上升,这与发生在公元前5410年左右的极端太阳高能粒子事件相一致。

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