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New Record Ocean Temperatures and Related Climate Indicators in 2023

March 7, 2024

The global physical and biogeochemical environment has been substantially altered in response to increased atmospheric greenhouse gases from human activities.

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Increase in MJO predictability under global warming

March 7, 2024

The Madden–Julian Oscillation (MJO) is a dominant source of subseasonal atmospheric variability in the tropics and significantly impacts global weather and climate predictability.

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Acidity of Antarctic waters could double by century’s end, threatening biodiversity

March 4, 2024

We project severe ocean acidification for Antarctic coastal waters over the coming century within existing and proposed Marine Protected Areas.

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A Machine Learning Augmented Data Assimilation Method for High-Resolution Observations

March 4, 2024

The accuracy of initial conditions is an important driver of the forecast skill of numerical weather prediction models.

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Stratospheric Climate Anomalies and Ozone Loss Caused by the Hunga Tonga-Hunga Ha'apai Volcanic Eruption

Dec. 11, 2023

The Hunga Tonga-Hunga Ha'apai (HTHH) volcanic eruption in January 2022 injected unprecedented amounts of water vapor (H2O) and a moderate amount of the aerosol precursor sulfur dioxide (SO2) into the Southern Hemisphere (SH) tropical stratosphere.

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Derivation and compilation of lower-atmospheric properties relating to temperature, wind, stability, moisture, and surface radiation budget over the central Arctic sea ice during MOSAiC

Dec. 11, 2023

Atmospheric measurements taken over the span of an entire year between October 2019 and September 2020 during the icebreaker-based Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) expedition provide insight into processes acting in the Arctic atmosphere.

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Skillful Multi-Month Predictions of Ecosystem Stressors in the Surface and Subsurface Ocean

Dec. 11, 2023

Anthropogenic carbon emissions and associated climate change are driving rapid warming, acidification, and deoxygenation in the ocean, which increasingly stress marine ecosystems.

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Variations in boundary layer stability across Antarctica: a comparison between coastal and interior sites

Dec. 11, 2023

The range of boundary layer stability profiles, from the surface to 500 m a.g.l. (above ground level), present in radiosonde observations from two continental-interior (South Pole Station and Dome Concordia Station) and three coastal (McMurdo Station, Georg von Neumayer Station III, and Syowa Station) Antarctic sites, is examined using the self-organizing maps (SOMs) neural network algorithm.

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Observed changes in hydroclimate attributed to human forcing

Dec. 11, 2023

Observational and modeling studies indicate significant changes in the global hydroclimate in the twentieth and early twenty-first centuries due to anthropogenic climate change.

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Antarctic Ice Sheet Freshwater Discharge Drives Substantial Southern Ocean Changes Over the 21st Century

Dec. 11, 2023

Multidecadal satellite observations indicate that the Antarctic Ice Sheet (AIS) is losing mass at an accelerating rate, which has the potential to impact many aspects of the climate system.

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