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26 September 2017

Warming climate could increase bacterial impacts on Chesapeake Bay shellfish, recreation

Researchers have found that three common species of Vibrio bacteria in the Chesapeake Bay could increase with changing climate conditions by the end of this century, resulting in significant economic and healthcare costs from illnesses caused by exposure to contaminated water and consumption of contaminated shellfish.

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7 September 2017

Increases in wildfire-caused erosion could impact water supply and quality in the West

A growing number of wildfire-burned areas throughout the western United States are expected to increase soil erosion rates within watersheds, causing more sediment to be present in downstream rivers and reservoirs, according to a new study.

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21 July 2017

Mountain glaciers recharge vital aquifers

Small mountain glaciers play a big role in recharging vital aquifers and in keeping rivers flowing during the winter, according to a new study. It suggests that the accelerated melting of mountain glaciers in recent decades may explain why arctic and subarctic rivers have increased their water flow during the winter even without a correlative increase in rain or snowfall.

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18 July 2017

Water quality improvements increase home prices in Narragansett Bay

Improvements in water quality in Narragansett Bay have had a positive impact on property values in the surrounding areas and future improvements to water quality could continue to benefit nearby property, a new study finds.

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5 June 2017

What caused the most toxic algal bloom ever observed in Monterey Bay?

In late spring 2015, the West Coast of North America experienced one of the most toxic algal blooms on record. A new study shows that, at least in Monterey Bay, California, the diatoms in this bloom became particularly toxic because of an unusually low ratio of silicate to nitrate in the waters of the bay.

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17 May 2017

Researchers track groundwater loss during drought in California’s Central Valley

A new study from researchers at UCLA and the University of Houston reveals estimates of significant groundwater loss in California’s Central Valley during the recent drought and sparks questions of sustainability for the important agricultural area.

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11 May 2017

Warmer temps cause decline in key runoff measure

Since the mid-1980s, the percentage of precipitation that becomes streamflow in the Upper Rio Grande watershed has fallen more steeply than at any point in at least 445 years, according to a new study. While this decline was driven in part by the transition from an unusually wet period to an unusually dry period, rising temperatures deepened the trend.

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5 April 2017

Research links decline in hemlock forests to changes in water resources

An insect infestation killing hemlock trees in New England is having a significant impact on essential water supplies in one of the nation’s most populous regions, a new study finds. The study is the first to show an increase in water yield, the amount of water reaching streams and rivers, resulting from forest damage caused by an insect pest called the hemlock woolly adelgid.

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15 February 2017

Researchers catch extreme waves with higher resolution modeling

Surfers aren’t the only people trying to catch big waves. Using decades of global climate data generated at a spatial resolution of about 25 square kilometers (10 square miles), researchers were able to capture the formation of tropical cyclones and the extreme waves that they generate. Those same models, when run at resolutions of about 100 kilometers (60 miles), missed the tropical cyclones and the big waves up to 30 meters (100 feet) high.

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10 February 2017

Daily disturbance from upper atmosphere leaves its footprints on tropical rainfall

A team of scientists led by postdoctoral researcher Takatoshi Sakazaki, from the University of Hawaiʻi at Mānoa’s International Pacific Research Center (IPRC), has analyzed satellite-based observations and computer model simulations of tropical rainfall variation throughout the day in an effort to determine the root cause of the temporal patterns. Their results, accepted for publication in Geophysical Research Letters, a journal of the American Geophysical Union, show that daily tropical rainfall distribution is significantly shaped by heating of the upper atmosphere.

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