NASA collaborates in an international study on air quality| Trending Viral hub

NASA and international researchers are studying air quality in Asia as part of a global effort to better understand the air we breathe. In collaboration with Korea’s National Institute of Environmental Research (NIER), the Asian Air Quality Satellite Research, or ASIA-AQ mission, will collect detailed atmospheric data at several locations in Asia.

Using aircraft, satellites and ground-based instruments, the ASIA-AQ team will collect and share data with government and air quality agencies for use in air quality research and understanding around the world.

“Our purpose is to improve understanding of the factors that control air quality,” said Jim Crawford, principal investigator for the ASIA-AQ mission at NASA’s Langley Research Center in Hampton, Virginia. “Observations from multiple perspectives are needed because satellites, ground sites and aircraft see different aspects of air quality that must be connected.”

While satellite views and ground-based measurements provide important data, they alone cannot fully illustrate air quality problems and the sources that cause them. By adding aerial measurements to models along with satellite and ground observations, scientists can achieve a detailed, multidimensional perspective that evaluates our air quality models from all angles.

A pair of NASA science planes will help provide those additional dimensions to air quality observations. The DC-8 at NASA’s Armstrong Flight Research Center in Edwards, California, is equipped with 26 instruments and will fly at low altitudes to collect data from the atmosphere closest to the ground, where people and habitats are affected. Meanwhile, G-III at NASA’s Langley Research Center in Hampton, Virginia, will fly at 28,000 feet to create a high-resolution map of the distribution of pollution in each study area and how it changes over time. of the day. Together with NIER’s Korean aircraft, NASA aircraft and instruments will complement and compare observations made from ground-based and satellite instruments.

“Air quality science missions (like ASIA-AQ) take a holistic, multi-perspective approach to better understand our pollution problems,” said Laura Judd, NASA G-III aircraft platform scientist. “If we can better understand how models simulate our air pollution, then we will be able to forecast when these events develop and be able to disseminate that information to the public to make informed decisions.”

Pollution changes as populations change, economies ebb and flow, and industries move or evolve. The ASIA-AQ project will improve our ability to measure those changes and how they connect on a global scale. ASIA-AQ brings together scientists, aircraft and instruments from across Asia and around the world and demonstrates how scientific advancement is a collaborative effort.

“Scientists and agencies from each of the participating countries will ensure that ASIA-AQ addresses the most important questions about outdoor air quality in their specific region,” said Barry Lefer, NASA program scientist for air quality research. air quality at NASA headquarters. “And they will be the ones to implement improvements to their forecasting models and advocate for policy changes.” ASIA-AQ is a joint effort between NASA and Korea’s National Institute for Environmental Research (NIER) and several international organizations, including the Philippine Department of Environment and Natural Resources (DENR), Universiti Kebangsaan Malaysia (UKM), Geoinformatics and Space. Thailand Technology Development Agency (GISTDA) and the Taiwan Ministry of Environment (MOENV).

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