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AC4

NOAA Greenhouse Gas Workshop: Towards MMRV (measurements, monitoring, reporting, and verification)

AC4 Events, AC4 News, Earth System Science and Modeling (ESSM), ESSM Events, ESSM News / By

The NOAA greenhouse gas community is organizing a workshop to solidify NOAA’s leadership role in the provision of greenhouse gas (GHG) measurements, models, and products through increased coordination of relevant activities and more streamlined product delivery. The workshop will be hosted by the Office of Atmospheric and Oceanic Research’s Climate Program Office (CPO). Location: Silver Spring, […]

NOAA Greenhouse Gas Workshop: Towards MMRV (measurements, monitoring, reporting, and verification) Read More »

NASA Successfully Launches TEMPO Satellite, Pathfinder to NOAA’s Future GeoXO Satellite Mission

AC4 News, Atmospheric Chemistry, Carbon Cycle and Climate (AC4), Earth System Science and Modeling (ESSM), ESSM News / By

NASA’s successful launch of the TEMPO mission will provide important risk reduction for the atmospheric chemistry observing capabilities of NOAA’s ACX instrument on the GeoXO mission.

NASA Successfully Launches TEMPO Satellite, Pathfinder to NOAA’s Future GeoXO Satellite Mission Read More »

Improved Understanding of the Significance of Organic Nitrates in the Atmosphere for Air Quality

AC4 News, Atmospheric Chemistry, Carbon Cycle and Climate (AC4), Earth System Science and Modeling (ESSM), ESSM News / By

A recent AC4-supported study uses laboratory experiments to improve our understanding of how the sun causes nitrogen compounds to chemically transform in the atmosphere, leading to pollution concerns like ozone formation.

Improved Understanding of the Significance of Organic Nitrates in the Atmosphere for Air Quality Read More »

The White House Office of Science and Technology Policy Formally Launches the Air Quality and Community Health Subcommittee, Co-Chaired by CPO’s Monika Kopacz

AC4 News, Atmospheric Chemistry, Carbon Cycle and Climate (AC4), Earth System Science and Modeling (ESSM), ESSM News / By

This week, the White House Office of Science and Technology Policy (OSTP) held a hybrid meeting to launch and celebrate the newly established Air Quality and Community Health Research (ACRS) Subcommittee of the National Science and Technology Council (NSTC), led jointly by NOAA, EPA and NIEHS and co-chaired by CPO’s Atmospheric Chemistry, Carbon Cycle and Climate (AC4) Program Manager Monika Kopacz.

The White House Office of Science and Technology Policy Formally Launches the Air Quality and Community Health Subcommittee, Co-Chaired by CPO’s Monika Kopacz Read More »

Quantifying Sulfur Dioxide Emissions and Understanding Air Quality Impacts from Fire Activity

AC4 News, Atmospheric Chemistry, Carbon Cycle and Climate (AC4), Earth System Science and Modeling (ESSM), ESSM News / By

A team of researchers use observations from FIREX-AQ to quantify sulfur dioxide emissions from wildfires and agricultural burns across the western US to understand how regional and long-range air quality can be affected, in a new research study supported by AC4.

Quantifying Sulfur Dioxide Emissions and Understanding Air Quality Impacts from Fire Activity Read More »

Comparisons of Atmospheric Measurement Instruments to Enable Urban Methane Research

AC4 News, Atmospheric Chemistry, Carbon Cycle and Climate (AC4), Earth System Science and Modeling (ESSM), ESSM News / By

AC4-supported research team provides an essential evaluation of laser-based analyzing instruments needed to investigate sources and impacts of atmospheric methane emissions in cities affected by COVID-19 shutdowns.

Comparisons of Atmospheric Measurement Instruments to Enable Urban Methane Research Read More »

Improving Experimental Methods to Study Air Pollution by Nitrogen Species

AC4 News, Atmospheric Chemistry, Carbon Cycle and Climate (AC4), Earth System Science and Modeling (ESSM), ESSM News / By

Nitrogen reacts with oxygen and other chemical compounds to form atmospheric oxides, which significantly impact the chemical composition of our atmosphere, human and environmental health, and broader climate processes. These gases can be produced by a range of natural and anthropogenic sources including fossil fuel combustion and wildfires. The atmospheric chemistry research community has developed new methods to track the emission sources of these gases and their key chemical reactions by analyzing the stable isotopes of nitrogen and oxygen in the gas compounds. However, there is a lack of a well-established method to simultaneously differentiate and quantify the concentration and isotopic composition of multiple groups of nitrogen oxides.

Improving Experimental Methods to Study Air Pollution by Nitrogen Species Read More »

Quantifying, Explaining, and Proposing Solutions for emission of the Greenhouse Gas with the Largest Known Warming Potential

AC4 News, COM News, ESSM News / By

A recent study supported by AC4 and COM investigates emissions of the greenhouse gas with the largest known warming potential, updates the understanding of how much we have in the atmosphere, and proposes possible solutions for reducing emissions.

Quantifying, Explaining, and Proposing Solutions for emission of the Greenhouse Gas with the Largest Known Warming Potential Read More »

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