NASA researchers have found a small but unexpected decrease in air pollution over some parts of Africa despite growing use of fossil fuels in many countries due to development and economic growth.
Large numbers of deforestation-related fires burned in the Amazon rainforest, while uncontrolled wildfires blazed in savanna and grassland ecosystems in central Brazil, Bolivia, and Paraguay.
Using ground, airborne, and satellite data, a diverse team of international researchers – iincluding NASA scientists – ihas created a new method to assess how the changes in forests over the past two decades have impacted carbon concentrations in the atmosphere.
The provisional public release of the Harmonized Landsat Sentinel-2 (HLS) dataset through NASA’s LP DAAC opens new avenues for global terrestrial research.
Helio Hackweek 2020 “Coronal Holes” team members and other hackweek participants continued their collaboration and published a paper and poster of their results at the 34th Conference on Neural Information Processing Systems. “SEARCH: SEgmentation of polAR Coronal Holes,” was published at the Machine Learning and the Physical Sciences Workshop.
The ICESat-2 laser altimeter data provide height measurements of every 2.3 feet (70 centimeters) along the ground path. The data provide precise measurements of the ice sheet height, ice floes, forest canopies, rivers and lakes and surface topography, and shallow water bathymetry.
Scientists have identified an unsettling trend — as levels of CO2 in the atmosphere increase, 86 percent of land ecosystems globally are becoming progressively less efficient at absorbing it.
The mission of the AI Center of Excellence is to enable new AI techniques for scientific discovery, providing scientists within NASA Goddard and their partners beyond NASA with resources for increased collaboration, innovation, and co-learning.
For a satellite with ice in its name, and measuring ice as its mission, NASA's ICESat-2 is also getting a lot of attention from scientists who have warmer subjects in mind.
An international team of scientists has used artificial intelligence and commercial satellites to identify an unexpectedly large number of trees spread across arid and semi-arid areas
Researchers from the NASA Center for Climate Simulation (NCCS), its parent Computational Information & Sciences and Technology Office (CISTO), NASA Goddard Space Flight Center, and university partner organizations are participating in the Scientific Program at the 2020 American Geophysical Union (AGU) Fall Meeting, being held online 1–17 Dec 2020.
Only 50% of the Earth’s total carbon dioxide (CO2) emissions from fossil fuels and deforestation accumulate in our atmosphere; of the other half, 20% is absorbed into the oceans, and 30% goes somewhere on land.
Seasonal cues, such as warmer spring temperatures or cooler temperatures in the fall, tell animals when to migrate, when to mate, and when and where to find food. Predators and prey, birds and mammals alike follow this natural schedule, and an overall shift of just a few days or weeks could have unknown impacts on these animals and ecosystems.
Combining 50-cm scale satellite data with computing resources from the NCCS and NCSA, Goddard’s Compton Tucker and collaborators mapped a surprising 1.8 billion trees across West Africa and determined the area of leaves within the tree crowns, which, with tree height calculations, will allow accurate predictions of carbon in the wood of these trees.
After 20 years of continuous human presence, the International Space Station (ISS) has provided 241 visitors with an extraordinary view of Earth from outer space — one they have shared with the rest of the world.
The NASA Center for Climate Simulation (NCCS) and NASA Goddard Space Flight Center partners will highlight their recent advances during SC20, the International Conference for High Performance Computing, Networking, Storage, and Analysis being held virtually November 9–19, 2020.
From assessing COVID-19’s global impacts to helping NASA return humans to the Moon to searching the cosmos for new exoplanets, researchers from across NASA, with university and industry partners, will highlight their latest advances, enabled by the agency’s supercomputers, at SC20—the International Conference for High Performance Computing.
For the second year in a row, fierce fires have burned throughout Bolivia. They are the product of a prolonged drought, which has supercharged the fires that are lit seasonally by farmers and ranchers to maintain grazing land and to clear forest and woodlands for agricultural production.