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1,000+ results for "Precipitation"

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

Hurricanes, heavy rains are critical for Hawai'i's groundwater supply

Research led by University of Hawai'i at Mānoa scientists reveals that rain from hurricanes and Kona storms is a key source of fresh water for Hawaii's groundwater. The study analyzed rainfall and stable isotopes to determine the origin of water in aquifers, finding significant amounts of rainwater recharging groundwater.

SourceUniversity of Hawaii at Manoa·JournalHydrological Processes·DateOct 12, 2020

Climate patterns linked in Amazon, North and South America, study shows

Researchers developed a tree-ring chronology that links Amazon precipitation patterns with those in North and South America, revealing an inverse relationship between the areas' growth and precipitation levels. The study provides valuable insights into large-scale climate extremes and the impact of El Niño phenomenon.

SourceUniversity of Arkansas·JournalEnvironmental Research Letters·DateOct 9, 2020
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SAMSUNG T9 Portable SSD 2TB transfers large imagery and model outputs quickly between field laptops, lab workstations, and secure archives.

Climate projection research may help to battle 'snail fever' worldwide

Researchers are using climate projection studies to understand the impact of changing temperatures and precipitation on snail populations, which carry the parasite causing schistosomiasis. The study aims to inform strategies for reducing the spread of this debilitating infection, affecting 220 million people globally.

SourceStony Brook University·DateOct 8, 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.

SourceInstitute of Atmospheric Physics, Chinese Academy of Sciences·JournalClimate Dynamics·DateSep 16, 2020

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.

SourceInstitute of Atmospheric Physics, Chinese Academy of Sciences·JournalJournal of Climate·DateSep 9, 2020
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Apple iPhone 17 Pro delivers top performance and advanced cameras for field documentation, data collection, and secure research communications.

Bering Sea ice extent is at most reduced state in last 5,500 years

Researchers have determined that the Bering Sea ice extent is at its most reduced state in the past 5,500 years. The study, published in Science Advances, analyzed a peat core from St. Matthew Island and found that modern sea ice conditions are unprecedentedly low.

SourceUniversity of Alaska Fairbanks·JournalScience Advances·DateSep 2, 2020

Importance of rainfall highlighted for tropical animals

Researchers develop a new concept to understand how precipitation affects tropical animals, including feeding behavior, predation, and physiological responses. The hygric niche framework has implications for conservation and climate change mitigation in the tropics.

SourceUniversity of Illinois College of Agricultural, Consumer and Environmental Sciences·JournalTrends in Ecology & Evolution·DateAug 25, 2020

Grass abundances during Dust Bowl

During extreme drought, C3 biomass production increased five-fold in grasslands while C4 plants declined. This shift is linked to changes in seasonal precipitation patterns favorable for C3 grasses

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateAug 24, 2020

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
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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

Improving the accuracy of typhoon forecasts with radar data assimilation

Researchers from the Institute of Atmospheric Physics, Chinese Academy of Sciences, analyzed Typhoon Haikui (2012) using a multigrid NLS-4DVar method to improve radar data assimilation. This method significantly enhanced the accuracy of 12-h track and accumulated precipitation forecasts.

SourceInstitute of Atmospheric Physics, Chinese Academy of Sciences·JournalAdvances in Atmospheric Sciences·DateAug 3, 2020

Belowground carbon fixation rates

Researchers estimate that 46% of total terrestrial carbon fixation occurs below ground, with a total productivity of 24.7 Petagrams of carbon per year. Belowground productivity increases with precipitation, but slows down at high levels.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateAug 3, 2020

Wetter than wet: Global warming means more rain for Asian monsoon regions

A high-resolution climate simulation reveals significantly increased precipitation over the monsoon trough due to global warming, driven by tropical disturbances and enhanced water vapor. The study also found distinct trends in water vapor and a stronger effect of global sea surface temperature increases on precipitation.

SourceTokyo Metropolitan University·JournalJournal of Climate·DateJul 25, 2020
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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

Rainy season tends to begin earlier in Northern Central Asia

A new study found that the rainy season in Northern Central Asia will shift from May-July to March-May by the end of the 21st century. This change is attributed to increased precipitation, with a projected 14.41% rise under the highest emission scenario.

SourceInstitute of Atmospheric Physics, Chinese Academy of Sciences·JournalEnvironmental Research Letters·DateJun 2, 2020
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Extreme precipitation and anthropogenic climate change

Research shows a significant increase in annual maximum one-day precipitation in North America, with anthropogenic forcing detected across the continent and smaller regions. The study suggests that human-induced warming has contributed to intensifying extreme precipitation events.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateJun 1, 2020

Volcanic eruptions reduce global rainfall

A recent study reveals that volcanic eruptions in the tropics lead to a decrease in global precipitation, primarily through the amplification of El Niño. The research found that the strength of El Niño is directly related to the magnitude of precipitation reduction.

SourcePohang University of Science & Technology (POSTECH)·JournalScience Advances·DateMay 27, 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
Davis Instruments Vantage Pro2 Weather Station

Davis Instruments Vantage Pro2 Weather Station offers research-grade local weather data for networked stations, campuses, and community observatories.

NASA finds Tropical Storm Jeruto's displaced rainfall

Strong wind shear displaced moderate rainfall east of Tropical Storm Jeruto's center, pushing heaviest rain at 1.6 inches per hour in a small area. NASA's Global Precipitation Measurement mission measured these rates on April 16.

SourceNASA/Goddard Space Flight Center·DateApr 16, 2020

NASA observes rainfall from tornado-spawning storms in the southern US

NASA analyzed severe storms in the southern US, creating an animation of powerful thunderstorms that brought heavy rainfall and spawned destructive tornadoes. The analysis used NASA's Integrated Multi-satellitE Retrievals for GPM (IMERG) algorithm to estimate near-realtime precipitation rates.

SourceNASA/Goddard Space Flight Center·DateApr 15, 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
CalDigit TS4 Thunderbolt 4 Dock

CalDigit TS4 Thunderbolt 4 Dock simplifies serious desks with 18 ports for high-speed storage, monitors, and instruments across Mac and PC setups.

Parsing extreme precipitation

A new theoretical model breaks down vertical atmospheric movement into dry and moist components, explaining regional patterns of extreme precipitation sensitivity. The model suggests that climate warming impacts vary by latitude, with the dry component dominating in mid-latitudes.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateApr 6, 2020

Colorado river flow dwindles due to loss of reflective snowpack

The Colorado River's flow is declining due to the loss of its reflective snowpack, which increases evaporation and reduces runoff. This trend is expected to outpace precipitation increases under a warmer future, highlighting the need for more accurate projections of water availability.

SourceAmerican Association for the Advancement of Science (AAAS)·JournalScience·DateFeb 20, 2020
Apple AirPods Pro (2nd Generation, USB-C)

Apple AirPods Pro (2nd Generation, USB-C) provide clear calls and strong noise reduction for interviews, conferences, and noisy field environments.

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

How countries respond to weather change

A two-degree Centigrade increase in global average temperature could lead to catastrophic consequences for the planet. The study found that countries in Central and Eastern Europe, Caucasus and Central Asia face major deviations from precipitation norms, with southern areas expected to experience more frequent droughts and heatwaves.

SourceNational Research University Higher School of Economics·DateFeb 17, 2020

More rain and less snow means increased flood risk

New Stanford research finds that winter floods driven by rainfall can be 2.5 times larger than those driven by snowmelt. As global warming increases precipitation falling as rain, flood sizes increase exponentially, posing a significant threat to infrastructure in Western US.

SourceStanford's School of Earth, Energy & Environmental Sciences·JournalWater Resources Research·DateJan 27, 2020
Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C)

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C) keeps Macs, tablets, and meters powered during extended observing runs and remote surveys.

ENSO heat engine shifts eastward under global warming

The ENSO heat engine is shifting eastward under global warming, leading to changes in global climate variations during ENSO years. This shift may also accelerate the decay of El Niño events after their peak phase, shortening their duration.

SourceInstitute of Atmospheric Physics, Chinese Academy of Sciences·JournalScience Advances·DateJan 8, 2020

Research shows increased sediment flux in the Yangtze river headwater

A new study finds significant increases in sediment flux in the Tuotuo River, a key headwater of the Yangtze River. The research attributes these changes to warming temperatures and enhanced precipitation and discharge capacity. The findings provide valuable insights for water and soil management on the Tibetan Plateau.

SourceChinese Academy of Sciences Headquarters·JournalScience Bulletin·DateDec 19, 2019

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.

SourceInstitute of Atmospheric Physics, Chinese Academy of Sciences·JournalScience Bulletin·DateDec 17, 2019
Fluke 87V Industrial Digital Multimeter

Fluke 87V Industrial Digital Multimeter is a trusted meter for precise measurements during instrument integration, repairs, and field diagnostics.

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

NASA examines tropical storm Fung-Wong's rainfall

Tropical Storm Fung-Wong was found to have two small areas of moderate to heavy rainfall despite strong wind shear. The Global Precipitation Measurement mission measured rainfall rates throughout the storm on Nov. 22, with heaviest precipitation occurring at a rate of 1.6 inches per hour.

SourceNASA/Goddard Space Flight Center·DateNov 22, 2019

NASA estimates tropical storm Sebastien's rainfall rates

NASA's Global Precipitation Measurement mission provides near-real-time rain estimates for Tropical Storm Sebastien, revealing moderate rainfall rates of up to 17.0 mm/hour east of the center. The storm is expected to become an extratropical cyclone in a couple of days and be absorbed by a cold front on Friday.

SourceNASA/Goddard Space Flight Center·DateNov 20, 2019
DJI Air 3 (RC-N2)

DJI Air 3 (RC-N2) captures 4K mapping passes and environmental surveys with dual cameras, long flight time, and omnidirectional obstacle sensing.

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

Future rainfall could far outweigh current climate predictions

UK researchers found significant increases in spring, autumn, and winter precipitation in upland areas, with winter increases consistent with national climate models. The study suggests caution is required when making assumptions on climate impacts based on climate models.

SourceUniversity of Plymouth·JournalClimate Research·DateNov 14, 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.

SourceAmerican Association for the Advancement of Science (AAAS)·JournalScience Advances·DateNov 13, 2019

A novel method for analyzing marine sediments contributes to paleoclimate reconstitution

Researchers developed a novel method using quartz and feldspar grains from the Parnaíba River in Brazil's Northeast region. The analysis reveals significant differences in luminescence between samples from headwaters and lower reaches of the river, reflecting changes in precipitation patterns over the past 30,000 years.

SourceFundação de Amparo à Pesquisa do Estado de São Paulo·JournalPaleoceanography and Paleoclimatology·DateNov 6, 2019
Nikon Monarch 5 8x42 Binoculars

Nikon Monarch 5 8x42 Binoculars deliver bright, sharp views for wildlife surveys, eclipse chases, and quick star-field scans at dark sites.

Precession-driven precipitation cycles in Chile

A study reveals a correlation between precession and Atacama rainfall, suggesting that precession reconfigures southern hemisphere westerlies differently. Model simulations replicate this relationship, which may impact global ocean circulation patterns.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateNov 4, 2019

Heavy rainfall found in Tropical Storm Lorenzo by NASA

NASA's Global Precipitation Measurement mission detected intense rainfall rates in Tropical Storm Lorenzo, with the heaviest downpours occurring near the storm's center. The tropical cyclone is forecast to strengthen and become a hurricane by Wednesday, posing a threat to interests in the Cabo Verde Islands.

SourceNASA/Goddard Space Flight Center·DateSep 23, 2019

NASA estimates Imelda's extreme rainfall

NASA's Integrated Multi-satellitE Retrievals for GPM (IMERG) estimated heavy rainfall totals of 16-24 inches between Freeport and Beaumont, Texas, and 6 inches in southwestern Louisiana. The IMERG product provides near-real-time rain estimates every 30 minutes, combining satellite observations with other data sources.

SourceNASA/Goddard Space Flight Center·DateSep 20, 2019

NASA estimates Tropical Depression Imelda's huge Texas rainfall

Tropical Depression Imelda brought heavy rainfall to northeastern Texas, with NASA estimating over 10 inches of rain fell between Houston and Beaumont. The storm's rainfall totals are expected to produce significant flash floods, prompting flash flood watches for parts of eastern Texas and western Louisiana.

SourceNASA/Goddard Space Flight Center·DateSep 19, 2019
Garmin GPSMAP 67i with inReach

Garmin GPSMAP 67i with inReach provides rugged GNSS navigation, satellite messaging, and SOS for backcountry geology and climate field teams.

Extreme flooding from storm surge and heavy precipitation projected to increase higher probability of compound flooding from precipitation and storm surge in Europe under anthropogenic climate change

Compound flooding events are projected to occur more than once every six years along the UK and Dutch coastlines. The probability of high sea levels and heavy precipitation occurring simultaneously will heavily increase in Northern Europe under a warmer future climate.

SourceAmerican Association for the Advancement of Science (AAAS)·JournalScience Advances·DateSep 18, 2019