Add BrightSurf on Google Email

Study sees powerful winds carving away Antarctic snow

A new study reveals that powerful winds in Antarctica are removing massive amounts of snow, potentially boosting estimates of potential sea-level rise. The research found that scour zones, where winds persistently scrape away at the surface, have lost up to 90% of their snow cover, equivalent to 80 billion tons per year.

SourceColumbia Climate School·JournalGeophysical Research Letters·DateOct 12, 2015

Sierra Nevada snowpack lowest in five centuries

A new report led by University of Arizona researchers reveals the Sierra Nevada snowpack was at its lowest level in 500 years in 2015, exacerbating California's ongoing drought. The study uses tree-ring data to compare snowpack levels with temperatures, finding a strong correlation between warmer winters and lower snowpack.

SourceUniversity of Arizona·JournalNature Climate Change·DateSep 14, 2015

S'no water in Sierra Nevadas

Researchers in California found that melting snow can produce highly variable results in underground water levels. The study used a network of moisture sensors to measure soil moisture and relate it to snow depth, finding that different sensor locations and tree cover conditions led to varying wetting and drying dynamics.

SourceAmerican Society of Agronomy·JournalVadose Zone Journal·DateAug 20, 2015

Playing 'tag' with pollution lets scientists see who's 'it'

Researchers use climate model to tag soot sources and track its impact on the Tibetan Plateau, finding that soot from wildfires in India warms the region more than greenhouse gases. The study suggests that cutting emissions from central Asia's fossil fuel burning can have a significant impact on reducing soot levels on the plateau.

SourceDOE/Pacific Northwest National Laboratory·JournalAtmospheric Chemistry and Physics·DateJul 29, 2015

Glacier changes at the top of the world

Researchers warn that Himalayan glaciers in the Everest region could experience dramatic change, with sustained ice loss likely through the 21st century. The study suggests that increased temperatures and changes in precipitation patterns will lead to reduced glacier growth and increased melt, impacting water availability and river flows.

SourceEuropean Geosciences Union·JournalThe Cryosphere·DateMay 27, 2015

Growing interest

A new Cornell study found that when school-grown salad greens were incorporated into cafeteria lunches, high school students increased their salad selection by 500% and consumed two-thirds of their salads. However, plate waste also rose, indicating a potential trade-off.

SourceCornell Food & Brand Lab·JournalActa Paediatrica·DateMay 14, 2015

Giant atmospheric rivers add mass to Antarctica's ice sheet

A team of researchers from KU Leuven has made a significant discovery about the impact of atmospheric rivers on Antarctica's ice sheet. They found that these long, narrow water vapor plumes can rapidly transport large amounts of moisture and cause devastating precipitation when they hit coastal areas.

SourceKU Leuven·JournalGeophysical Research Letters·DateJan 19, 2015

Snow has thinned on Arctic sea ice

Research confirms significant thinning of Arctic sea ice snow, particularly in the Beaufort and Chukchi seas, with results showing a decline of 14 inches to 9 inches (35 cm to 22 cm) in western waters near Alaska. Thinner snow cover may impact ice thickness and ecosystem health.