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Having dodged lava flows, NOAA's Mauna Loa research facility to get upgrades

Having dodged lava flows, NOAA's Mauna Loa research facility to get upgrades

NOAA’s Mauna Loa Atmospheric Baseline Observatory, the benchmark sampling site for monitoring global climate change, is slated to undergo a major renovation and facility upgrade once road access is restored over lava flows produced by the recent eruption of Mauna Loa volcano, NOAA announced today. 

February 6, 2023 0 Comments
Scientists peer into the dark for insights on daytime air pollution

Scientists peer into the dark for insights on daytime air pollution

Scientists have long known that the sun drive photochemical reactions responsible for generating ozone and particulate pollution that is harmful to human health. But what happens when the sun goes down? A new study co-authored by a Chemical Sciences Laboratory resesearcher provides insight into what happens with air pollution in the dark of the night.. 

February 2, 2023 0 Comments
One facility makes a big contribution to Salt Lake’s winter brown cloud

One facility makes a big contribution to Salt Lake’s winter brown cloud

The 2.4 million people who live along Utah’s Wasatch Front experience some of the most severe winter particulate matter air pollution in the nation. Now, analysis of measurements taken during NOAA research flights in 2017 indicates that emissions from a single source, a magnesium refinery, may be responsible for a significant fraction of the fine particles that form  the dense winter brown clouds that hang over Salt Lake City.

January 25, 2023 0 Comments
Major HYSPLIT Update Improves the Nation’s Public Safety

Major HYSPLIT Update Improves the Nation’s Public Safety

On December 6, 2022, a major new version of HYSPLIT was fully implemented at the National Weather Service’s (NWS) National Centers for Environmental Prediction (NCEP). HYSPLIT is the pre-eminent model, developed and updated by NOAA’s Air Resources Laboratory, that has been used for tracking hazardous and toxic emissions from industrial, transportation, and nuclear accidents, smoke from wildfires and prescribed fires, ash from volcanic eruptions and dust from dust storms. Among its new capabilities is an expanded and enhanced capability for volcanic ash modeling.

December 8, 2022 0 Comments
Significant Measure Approved to Reduce Potent Greenhouse Gas Emissions

Significant Measure Approved to Reduce Potent Greenhouse Gas Emissions

NOAA science expertise and data has supported the U.S. government decision to reduce potent greenhouse gas emissions. On September 21st, the United States Senate successfully approved the Kigali Amendment of the Montreal Protocol with strong bipartisan support. The Kigali Amendment, negotiated under the Obama administration in 2016, is an international agreement to phase-out and replace hydrofluorocarbons, a class of chemicals that act as potent greenhouse gasses.

October 3, 2022 0 Comments
Path to recovery of ozone layer passes a significant milestone

Path to recovery of ozone layer passes a significant milestone

An annual analysis of air samples collected at remote sites around the globe that is tracking a continued decline in the atmospheric concentration of ozone-depleting substances shows the threat to the ozone layer receding below a significant milestone in 2022, NOAA scientists have announced. 

August 24, 2022 0 Comments
Study validates accuracy of NOAA’s smoke forecasting model during the Camp Fire

Study validates accuracy of NOAA’s smoke forecasting model during the Camp Fire

A research team led by scientists from the University of California Berkeley and NOAA found that HRRR-Smoke accurately predicted the intensification of smoke pollution from the Camp Fire.

July 5, 2022 0 Comments
Projected increase in space travel may damage ozone layer

Projected increase in space travel may damage ozone layer

Scientists from NOAA and The Aerospace Corp. modeled the climate response of the stratosphere to increased future emissions of black carbon from rockets burning kerosene fuel.

June 21, 2022 0 Comments
New research estimates the future emissions of potent greenhouse gases

New research estimates the future emissions of potent greenhouse gases

New research published in Atmospheric Chemistry and Physics projects future emissions of hydrofluorocarbons (HFCs), a class of potent greenhouse gasses, based on recent trends and compliance with current policies. The ability to observe trends of these compounds in the atmosphere is made possible by the long-term record of observations produced by the Halocarbons and other Atmospheric Trace Species (HATS) Division within NOAA’s Global Monitoring Laboratory.

June 6, 2022 0 Comments
Carbon dioxide now more than 50% higher than pre-industrial levels

Carbon dioxide now more than 50% higher than pre-industrial levels

Carbon dioxide measured at NOAA’s Mauna Loa Atmospheric Baseline Observatory peaked for 2022 at 421 parts per million in May, pushing the atmosphere further into territory not seen for millions of years, scientists from NOAA and Scripps Institution of Oceanography at the University of California San Diego announced today. 

June 6, 2022 0 Comments
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