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Search results for “Precipitation”

1,000+ results for "Precipitation"

Change in global precipitation patterns as a result of climate change

A study by Dr. Michael Deininger found that changes in regional precipitation over the past 10,000 years are connected and mainly caused by alterations to solar radiation and associated temperature differences between tropics and polar regions. This could lead to shifts in regional rainfall patterns, potentially causing droughts in som...

SourceJohannes Gutenberg Universitaet Mainz·JournalNature Communications·DateDec 17, 2020

Convection-permitting modelling improves simulated precipitation over the Tibetan Plateau

Researchers improve simulated precipitation over the Tibetan Plateau using convection-permitting models. These models better depict precipitation frequency and intensity, reducing the wet bias in traditional climate models. Higher resolution and more accurate parameterizations lead to improved simulations.

SourceInstitute of Atmospheric Physics, Chinese Academy of Sciences·JournalQuarterly Journal of the Royal Meteorological Society·DateNov 4, 2020

Scientists look into tropopause to find early signals of persistent strong rainfall

Researchers tracked precursors near the tropopause to predict persistent heavy rainfall in South China, finding anomalies in Arctic and tropical regions. The study revealed a special configuration of synoptic systems that leads to persistent heavy rainfall, providing new insights for regional prediction.

A new study of ocean salinity finds substantial amplification of the global water cycle

A new study has found substantial amplification of the global water cycle, with increased evaporation and precipitation rates, due to changes in ocean salinity. This change is largely driven by human influence and has significant implications for future climate, including more extreme weather events and droughts.

Spread of monsoon circulation changes explains uncertainty in global land monsoon precipitation projection

Research finds global land monsoon summer precipitation increased by 2.54% and 5.75% in lowest and highest emission scenarios respectively, driven by thermodynamic responses to increased moisture. Model spread in projection was larger for higher emission scenarios, emphasizing importance of circulation change prediction.

SourceInstitute of Atmospheric Physics, Chinese Academy of Sciences·JournalGeophysical Research Letters·DateAug 13, 2020

Berkeley Lab science snapshots

A Berkeley Lab study finds that California's winter precipitation will become 50% more variable by 2100, affecting agriculture, flood control, and water resource management. The MJO, a global rainfall pattern, is expected to transfer its precipitation-related atmospheric conditions to the West Coast via changes in strong winds.

SourceDOE/Lawrence Berkeley National Laboratory·JournalNature Climate Change·DateAug 10, 2020

Where is the water during a drought?

Researchers from the Leibniz-Institute of Freshwater Ecology and Inland Fisheries investigated water distribution in the Demnitzer Mühlenfliess sub-catchment area. They found that vegetation plays a significant role in storing and releasing water, with forests having a drier soil than grasslands due to their root depth and leaf canopy.

SourceForschungsverbund Berlin·JournalHydrology and Earth System Sciences·DateJul 17, 2020

Scientists find key factors impacting sideswiping tropical cyclone precipitation

Researchers found that extreme rainfall events from STCs can occur over inland areas far from coastlines due to amplification of local terrain and large-scale forcing. The study suggests further investigation into asymmetrical distribution of STP, differences between STP and landfalling precipitation, and comparisons with other datasets.

SourceInstitute of Atmospheric Physics, Chinese Academy of Sciences·JournalAdvances in Atmospheric Sciences·DateJun 15, 2020

Using cloud-precipitation relationship to estimate cloud water path of mature tropical cyclones

A study estimates the cloud water path of mature tropical cyclones by analyzing the correlation between cloud microphysical properties and precipitation intensity. The results show that a notable sigmoid function can be used to fit the cloud water path and near-surface rain rate, providing a new way to estimate cloud water path in models.

SourceInstitute of Atmospheric Physics, Chinese Academy of Sciences·JournalAdvances in Atmospheric Sciences·DateApr 27, 2020

Precipitation will be essential for plants to counteract global warming

A new study from Columbia University reveals that the balance between soil water and energy availability determines whether plant growth is limited by precipitation or temperature. This finding highlights the crucial role of precipitation in supporting plant photosynthesis, particularly during the late growing season.

SourceColumbia University School of Engineering and Applied Science·JournalProceedings of the National Academy of Sciences·DateApr 13, 2020

Climate change and precipitation in Mediterranean climates

A study reveals that Mediterranean-like climates are experiencing variable responses to climate warming, with some regions drying faster than global-mean warming. The differences result from distinct regional changes in atmospheric circulation driven by separate fast and slow sea-surface temperature responses to greenhouse gases.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateFeb 17, 2020

Limiting global warming would relieve populations from wet and dry extremes in China

A study published in Science Bulletin finds that limiting global warming to 1.5°C would reduce precipitation extremes in China, particularly in southeastern regions. The research highlights the social impacts of climate change, with heavy rainfall events intensifying across the country and dry extremes increasing in South China.

Human migration out of Africa may have followed monsoons in the Middle East

A new study suggests that summer monsoons from Asia and Africa reached the Middle East at least 125,000 years ago, providing suitable corridors for human migration. This finding corresponds with cyclical changes in Earth's orbit that brought increased summer precipitation, supporting animal and human migration into the region.

SourceUniversity of Wisconsin-Madison·JournalProceedings of the National Academy of Sciences·DateNov 26, 2019

Steep momentum gradients play a major role in coastal precipitation

Research reveals surface discontinuity plays a significant role in developing nearshore convection systems, sustaining precipitation in coastal areas of Korea. The study found changes in wind stress and potential temperature enable these systems, with roughness changes enhancing convergence and energy transfer.

SourceInstitute of Atmospheric Physics, Chinese Academy of Sciences·JournalAdvances in Atmospheric Sciences·DateNov 19, 2019

Climate change influenced rise and fall of Northern Iraq's Neo-Assyrian Empire

A new study suggests that climate change played a role in the collapse of the Neo-Assyrian Empire by exacerbating agricultural productivity declines. The research used high-resolution paleoclimate records from northern Iraq to show that a megadrought may have encouraged invading armies and led to political unrest.