Tree ring analysis, or dendrochronology, is a method that uses the annual growth rings of trees to derive precisely dated environmental and chronological information. It involves sampling wood (typically via increment cores or cross-sections), measuring ring widths or other anatomical features, and statistically cross-dating ring patterns among multiple specimens to build continuous chronologies. These chronologies are then used to date wood materials, reconstruct past climate variables (e.g., temperature, precipitation, drought indices), and calibrate or validate other proxy records and radiocarbon ages. The method relies on species-specific growth–climate relationships, rigorous standardization procedures, and quality control using correlation and pattern-matching algorithms.
The Qinling-Bashan Mountains (QBMs) serve as an important boundary between southern and northern China and are dubbed China's Central Water Tower (CCWT). However, the spatiotemporal structures and dynamics of the summer hydroclimate, ...
Earth Sciences
Nov 25, 2025
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Climate change is extending the growing season in European forests, but this effect will not be sufficient to offset the negative impacts of increasing drought stress. An international research team led by Jan Tumajer from ...
Plants & Animals
Nov 13, 2025
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Have you ever examined timber floorboards and pondered why they look the way they do? Perhaps you admired the super-fine grain, a stunning red hue or a swirling knot, and wondered how it came to be?
Ecology
Jul 17, 2025
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Scientists have used clues locked into tree rings to reveal major changes in the Amazon's rainfall cycle over the last 40 years: wet seasons are getting wetter and dry seasons drier.
Earth Sciences
Jun 17, 2025
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Summers are getting hotter and drier in the Eurasian landmass due to an atmospheric circulation pattern further aggravated by anthropogenic factors. The recent tandem heat-wave-drought events in the region stretching from ...
The effects of climate change are complex, especially on the water cycle. As we seek to better understand human-driven climate changes, long-term baselines for environmental data are essential.
Environment
Apr 30, 2025
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The summer of 2024 was the warmest in 2,000 years in the Lapland region of northern Finland, Norway and Sweden, driven by climate change, the Finnish Meteorological Institute told AFP on Monday.
Environment
Apr 28, 2025
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As the climate warms, drought conditions are intensifying in many parts of the world. The effects of hydrological drought on water levels in rivers and other waterways are especially crucial to monitor because they can affect ...
Earth Sciences
Apr 21, 2025
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For hundreds of years, the Amazon has been exploited for its gold. Today, the precious metal is just as sought after, but the remaining tiny gold particles are much harder to find. Mining often happens in artisanal and small-scale ...
Earth Sciences
Apr 8, 2025
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A study of tree rings in the Gaspesie's Sainte-Anne River area reveals that snowpacks have been declining noticeably in the region's mountains for nearly nine decades. The researchers say the phenomenon is directly linked ...
Earth Sciences
Apr 1, 2025
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