On September 30, 2021, a saildrone uncrewed surface vehicle made history by intercepting the eyewall of Hurricane Sam in the northwestern tropical Atlantic, recording a […]
The U.S. Department of Energy (DOE) has awarded NOAA $5 million to support the conversion of the Mauna Loa atmospheric baseline observatory in Hawaii to
A volcanic eruption sent enough water vapor into the stratosphere to cause a rapid change in chemistry
The eruption of the Hunga Tonga-Hunga Ha’apai volcano on January 15, 2022, produced the largest underwater explosion ever recorded by modern scientific instruments, blasting an enormous amount of water and volcanic gases higher than any other eruption in the satellite era.
NOAA scientists investigating the stratosphere have found that in addition to meteoric ‘space dust,’ the atmosphere more than seven miles above the surface is peppered with particles containing a variety of metals from satellites and spent rocket boosters vaporized by the intense heat of re-entry.
While the shade offered by clouds on a hot sunny day can be obvious, quantifying the actual climate impact in terms of solar energy remains a challenging task. This is because the volume, thickness, and lifetime of marine clouds can change rapidly, and the processes that govern how and where clouds form and how gases and aerosols in the air interact with cloud droplets are highly complex. In a marine environment, many of those gases and aerosols in the air come from the ocean itself.
The surface temperatures of about 40% of the global ocean are already high enough to meet the criteria for a marine heatwave — a period of persistent anomalously warm ocean temperatures — which can have significant impacts on marine life as well as coastal communities and economies. The new forecast by the Physical Sciences Laboratory (PSL) projects that it will increase to 50% by September, and it could stay that way through the end of the year.
The summer of 2021 was a smoky one for Denver and northeastern Colorado. Smoky haze from wildfires in Arizona, California, and the Pacific Northwest shrouded
HORUS uncrewed glider system completes sampling mission to 90,000 feet The quest by Global Monitoring Laboratory scientists to develop a reliable, cost-effective way to study
The Annual Greenhouse Gas Index is a measure of the climate-warming influence of long-lived trace greenhouse gases in the atmosphere and how that influence has changed since the onset of the industrial revolution.
New NOAA analysis of a ground-breaking global atmospheric airborne research mission shows that smoke from biomass burning substantially contributes to one of the most common and harmful constituents of urban air pollution: ozone. Another record-breaking fire season across the western United States and Canada fouled skies as far downwind as Boston and New York City with wildfire smoke, visibly demonstrating the impacts that fires can have on air quality thousands of miles away. Now, new NOAA research demonstrates that the effects of fire emissions on the atmosphere are even larger and far more widespread than previously believed, and substantially contribute to one of the most common and harmful constituents of urban air pollution: ozone.