Earth Expeditions: Korea U.S.-Air Quality | Summary and Q&A

TL;DR

NASA's KORUS-AQ mission in South Korea is studying air quality using aircraft and ground instruments, aiming to improve forecasts and understand global air pollution.

Key Insights

• 👾 Air quality is a global problem, and studying it from space provides a comprehensive view.
• 🛩️ Measuring air pollution from space is challenging due to small particles, cloud interference, and the need for surface-level measurements.
• 🇰🇷 KORUS-AQ mission in South Korea helps calibrate and validate future pollution tracking satellites.
• 👱 Data collected during KORUS-AQ will be analyzed over the next few years to improve understanding of air pollution processes.
• 😫 Korea's diverse pollution sources and natural laboratory setting make it an ideal location for air quality studies.
• 👱 Ground-based air quality sites, combined with satellite data, help validate measurements and improve forecasts.
• 👱 KORUS-AQ contributes to global efforts in monitoring air quality changes over time.

Transcript

[MUSIC] Anyoung-haseyo. That's hello in Korean. Because today our investigators are in South Korea to study air quality. Air quality is a lot like your breath, Tom. Most people aren't going to say anything unless it's bad. At NASA, we're constantly looking at air quality around the globe from space. Today we're showing you how we do this with aircr... Read More

Questions & Answers

Q: Why is NASA studying air pollution?

Air pollution is a global problem, and NASA uses satellites to get a global view, measuring small particles and gases. This helps understand the impacts on human health and Earth's climate system.

Q: How does NASA measure air pollution from space?

Measuring air pollution from space is challenging due to small amounts of pollutants, cloud interference, and the need to measure pollution at the surface. Techniques like LIDAR and satellites are used to overcome these challenges.

Q: Why did NASA choose Korea for the KORUS-AQ mission?

Korea was chosen because of its special relationship with NASA, as they are building a sister satellite. This study helps calibrate and validate the satellite before it launches. Additionally, Korea's air quality diversity makes it an ideal laboratory.

Q: How does KORUS-AQ contribute to understanding air quality?

KORUS-AQ collects continuous data from over 300 ground-based air quality sites, helping validate satellite measurements and improve our knowledge of the challenges faced in observing air quality from space.

Summary & Key Takeaways

• NASA's Earth science mission, KORUS-AQ, is studying air quality in South Korea to deepen our understanding of air pollution processes and improve forecasts.

• The mission involves using multiple airplanes and ground instruments to collect data and analyze it over the next few years.

• South Korea's diverse pollution sources make it an ideal location for this study.