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Extreme Atmospheric Rivers: What will California’s Strongest Storms Look Like in a Warming Climate?

/in , , /by /WeatherWestby Daniel Swain

Atmospheric rivers (ARs)—long, sinuous corridors of water vapor in motion in the lower half of Earth’s atmosphere—are a key aspect of California’s cool-season climate. ARs are in many cases pretty unremarkable when they’re out over the open ocean, visible on satellite as a narrow ribbon of cloudiness and (usually) light precipitation. But when these moisture plumes attach themselves to wintertime low pressure systems and make landfall along the California coast, the consequences can be dramatic—prolonged heavy rain and mountain snow often result, along with sometimes powerful winds.

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Future Precipitation Increase from Very High Resolution Ensemble Downscaling of Extreme Atmospheric River Storms in California

/in , , /by /ScienceAdvances (AAAS)by Xingying Huang, Daniel L. Swain, and Alex D. Hall

Precipitation extremes will likely intensify under climate change. However, much uncertainty surrounds intensification of high-magnitude events that are often inadequately resolved by global climate models. In this analysis, we develop a framework involving targeted dynamical downscaling of historical and future extreme precipitation events produced by a large ensemble of a global climate model. This framework is applied to extreme “atmospheric river” storms in California.

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Coronavirus: Testing Sewage an ‘Easy Win’

/in , , /by /BBC Newsby Victoria Gill

A sewage-based coronavirus test could be an “easy win” that would pick up infection spikes up to 10 days earlier than with existing medical-based tests.

Scientists led by UK’s Centre for Ecology and Hydrology are working on a standardised test to “count” the amount of coronavirus in a wastewater sample.

“The earlier you find [a signal], the earlier an intervention can happen,” says lead researcher Dr Andrew Singer.

“That means lives will be made much more liveable in the current crisis.”

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Fleet Science Center Offers Virtual Summer Camps

/in , , /by /SDNews.com (San Diego Community Newspaper Group)

This summer, the Fleet Science Center in Balboa Park will turn curious kids into happy campers with science-themed summer camps. The Fleet’s Summer Camps provide exciting experiments, intriguing investigations and fantastic fun for kids. Virtual Summer Camps began June 15 and end Aug. 14. Details: https://www.fleetscience.org/events/summer-camps

 

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Major Ocean Research Effort Centered in San Diego

/in , , /by /KPBS-FM/TVby Erik Anderson

The Scripps Institution of Oceanography in San Diego will host a major research initiative funded by the federal government.

UC San Diego will host the Cooperative Institute for Marine, Earth and Atmospheric systems, and it will get up to $220 million in funding for research over a five-year period.

The National Oceanic and Atmospheric Administration is making the investment locally after a competitive bidding process.

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New Study Shows Global Warming Intensifying Extreme Rainstorms Over North America

/in , , /by /InsideClimate Newsby Bob Berwyn

New research showing how global warming intensifies extreme rainfall at the regional level could help communities better prepare for storms that in the decades ahead threaten to swamp cities and farms.

The likelihood of intense storms is rising rapidly in North America, and the study, published Monday in theProceedings of the National Academy of Sciences, projects big increases in such deluges.

“The longer you have the warming, the stronger the signal gets, and the more you can separate it from random natural variability,” said co-author Megan Kirchmeier-Young, a climate scientist with Environment Canada.

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Self-Assembling Traps Capture PFAS

/in , /by /WaterWorld Magazine

University at Buffalo chemists have shown that self-assembling molecular traps can be used to capture PFAS — dangerous pollutants that have contaminated drinking water supplies around the world.

The traps are made from iron-based and organic building blocks that connect, like Legos, to form a tetrahedral cage. Experiments showed that these structures bind to certain PFAS (short for per- and polyfluoroalkyl substances), and a lab analysis revealed how this happens. As it turns out, the PFAS stick strongly to the outside of the cages instead of getting caught inside, researchers say.

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Hydro Station Joins Virtual ‘Innovation Week’ May 26-29

/in , , /by /Water News Network

The Chula Vista Elementary School District’s “Innovation Week 2020” from May 26 to 29 will make a virtue of going virtual, inviting the community to participate along with its students in four live science education events. The activities include a Hydro Station lesson about groundwater aquifers.

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Chula Vista Elementary students will explore science during "Innovation Week 2020." Photo: Chula Vista Elementary School District

Hydro Station Joins Virtual ‘Innovation Week’ May 26-29

/in , /by

The Chula Vista Elementary School District’s “Innovation Week 2020” from May 26 to 29 will make a virtue of going virtual, inviting the community to participate along with its students in four live science education events. The activities include a Hydro Station lesson about groundwater aquifers.

The Hydro Station is an interactive educational space at the Richard A. Reynolds Groundwater Desalination Facility, operated as a joint partnership between the school district, the Otay Water District, and the Sweetwater Authority.

“We’re proud that the school district can continue offering its programs at a time that’s needed now more than ever,” says Tenille Otero, Otay Water District communications officer. “Even better, is that anyone outside of the school district can experience these wonderful programs that the district offers.”

Live interactive events for students and public

“We are very excited to bring our innovative learning experiences to the San Diego region and beyond through these live, online events,” said Michael Bruder, instructional services coordinator with the Chula Vista Elementary School District. “We are also grateful to have the support of our wonderful community partners in making this happen.”

All live sessions start at 1 p.m. and will be hosted on the Microsoft Teams platform. The sessions are free and open to the public to join.

Treats teach kids about groundwater on May 28

The Hydro Station is an interactive educational space at the Richard A. Reynolds Groundwater Desalination Facility, operated as a joint partnership between the Chula Vista Elementary School District, the Otay Water District, and the Sweetwater Authority. Photo: Otay Water District

On Thursday, May 28, at 1 p.m. Hydro Station instructor Christy Bystrak will lead “Building an Edible Aquifer.”

Participants will learn about the geology of an aquifer including confining layers, contamination, recharge, and water tables, while constructing their own version using items found at home in the kitchen, including clear plastic cups, straws, food coloring, soda, ice cream, and different types of small candy or cereal.

Additional presentations include “Engineering Superhero Tech,” “Cooking Up S’More Energy,” and “Structures for Survival.”

Located in southern San Diego County, the Chula Vista Elementary School District’s 46 schools serve more than 29,600 students. Schools serve a vibrant, diverse community that features a blend of residential areas, recreational facilities, open space, and light industry.

CVESD offers innovative partnerships such as the Hydro Station project with the Otay Water District and Sweetwater Authority as a vital part of its technology-based curriculum to develop students’ creativity, critical thinking, communication, and collaboration skills.

Opinion: Ripple Effect – When Politics Ignores Science, it Jeopardizes Local Clean Water

/in , , /by /The Hillby Nathan Murphy

Nine states are suing the Environmental Protection Agency for “trying to use the current public health crisis to sweep environmental violations under the rug,” according to California Attorney General Xavier Becerra.

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