Scientists use NASA data to track microplastics in the ocean.

Scientists from the University of Michigan have developed an innovative way to use NASA satellite data to track the movement of tiny pieces of plastic in the ocean.

Microplastics form when plastic trash in the ocean breaks down from the sun’s rays and the motion of ocean waves. These small flecks of plastic are harmful to marine organisms and ecosystems. Microplastics can be carried hundreds or thousands of miles away from the source by ocean currents, making it difficult to track and remove them. Currently, the main source of information about the location of microplastics comes from fisher boat trawlers that use nets to catch plankton – and, unintentionally, microplastics.


Unraveling the mystery of why we overeat.
Eating is one of life’s greatest pleasures, and overeating is one of …
Explore the most detailed 3D map of the universe with virtual reality
You’re floating in space, just above the Earth. The International Space Station …
When breezy, wear masks outdoors to prevent coronavirus exposure
WASHINGTON, October 12, 2021 — As the highly infectious delta variant of …
Insects in the light of land use and climate
Worldwide, the quantity and diversity of insects are declining: scientists have reported …

The new technique relies on data from NASA’s Cyclone Global Navigation Satellite System (CYGNSS), a constellation of eight small satellites that measures wind speeds above Earth’s oceans and provides information about the strength of hurricanes. CYGNSS also uses radar to measure ocean roughness, which is affected by several factors including wind speed and debris floating in the water.

Working backward, the team looked for places where the ocean was smoother than expected given the wind speed, which they thought could indicate the presence of microplastics. Then they compared those areas to observations and model predictions of where microplastics congregate in the ocean. The scientists found that microplastics tended to be present in smoother waters, demonstrating that CYGNSS data can be used as a tool to track ocean microplastic from space.


Processing…
Success! You're on the list.

Leave a Reply

%d bloggers like this: