Through Smoke and Fire, NASA Searches for Answers July 15, 2019 / activist360 / Leave a comment For years, NASA has used the vantage point of space, combined with airborne and ground-based field campaigns, to decipher the impact of fires—from first spark to final puff of smoldering smoke— and help other agencies protect life and property. But the effects of fires linger long after they’re extinguished: They can upend ecosystems, influence climate and disrupt communities. While NASA keeps an eye on today’s fires, it also tackles the big-picture questions that help fire managers plan for the future. This summer, NASA is embarking on several field campaigns across the world to investigate longstanding questions surrounding fire and smoke. Aircraft will fly through smoke and clouds to improve air quality, weather and climate forecasting, and investigate fire-burned forests to capture ecosystem changes that have global impact.Music: Motion Blur by Sam Dodson, End of the Quarter by Austin Jordan Credit: NASA’s Goddard Space Flight Center/LK Ward
Using NASA Data to Monitor Drought and Food Insecurity July 9, 2019 / activist360 / Leave a comment NASA’s satellite imagery and model forecasts play an important role in monitoring the performance of crops worldwide and preparing for food shortages. NASA’s view from space helps government agencies forecast food insecurity, like during the drought in Southern Africa in 2018. Music credit: Anticipating Outcomes by Simon Begg [PRS] Credit: NASA’s Goddard Space Flight Center Kathryn Mersmann (USRA): Lead Producer Maria-Jose Vinas Garcia (Telophase): Lead Writer Ellen T. Gray (ADNET): Producer Trent L. Schindler (USRA): Lead Visualizer Christa Peters-Lidard (NASA/GSFC): Scientist John D. Bolten (NASA/GSFC): Scientist Amy McNally (SAIC): Scientist
NASA Tracks the Future of Asia’s Glaciers June 30, 2019 / activist360 / Leave a comment Asia’s high mountains are a crucial freshwater source to one-seventh of the world’s population. Snow and glaciers in these mountains contain the largest volume of freshwater outside of Earth’s polar ice sheets, leading hydrologists to nickname this region the “third pole.” Rapid changes in the region’s climate, however, are affecting glacier flows and snowmelt. Local people are already modifying their land-use practices in response to the changing supply, and the region’s ecology is transforming. Scientists estimate that by 2100, these glaciers could be up to 75% smaller in volume. NASA’s satellites observe and measure snow and ice cover remotely with multiple types of sensors. This allows scientists to create an authoritative estimate of the water budget of this region and a set of products local policy makers can use in responding to hazards and planning for a changing water supply.