The National Oceanic and Atmospheric Administration (NOAA) is studying how to use satellite imagery to detect algae bloom outbreaks before they become harmful to human health and the environment.

Algae blooms are caused by a rapid increase in the population of algae, which can produce toxins that can cause respiratory irritation, gastrointestinal illness, and skin rashes. Algae blooms can also lead to fish kills and other environmental problems.

NOAA is working with the University of South Florida to develop a satellite-based system that can identify and track algae blooms in coastal waters. The system will use data from the Landsat 8 satellite, which can collect images of the Earth's surface in visible, near-infrared, and shortwave infrared wavelengths.

By analyzing these images, scientists will be able to identify areas where algae blooms are likely to occur. This information can then be used to warn people who live near coastal areas so that they can take precautions to protect themselves from exposure to harmful algae.

The satellite-based system is still in development, but NOAA hopes to have it operational by 2020.

In addition to the satellite-based system, NOAA is also working on developing other methods for detecting algae bloom outbreaks. These methods include using drones, airplanes, and underwater sensors.

By combining these different methods, NOAA hopes to improve its ability to detect algae bloom outbreaks and protect human health and the environment.