MODIS (or Moderate Resolution Imaging Spectroradiometer) is a key instrument aboard the Terra (originally known as EOS AM-1) and Aqua (originally known as EOS PM-1) satellites.

3 days ago · Images updated every 5 minutes.

Great Lakes Surface Environmental Analysis full resolution images of the day. Present day average compared to prior years. Lake surface temperatures are updated daily with information from the cloud-free portions of the previous day’s satellite imagery.

These images were created using MODIS high resolution data down linked from the satellite directly to the antenna at the top of the Space Science and Engineering Center at the University of Wisconsin-Madison.

4 days ago · 20 hour loop - 240 images - 5 minute update. To enlarge, pause animation & click the image. Hover over popups to zoom. Use slider to navigate.

True color images look similar to a “photograph” of the earth and lakes from a space-borne satellite perspective. The Great Lakes CoastWatch node hosts satellite images from the following instruments: Suomi National Polar-Orbiting Partnership spacecraft (VIIRS S-NPP) NOAA-20’s Visible Infrared Imaging Radiometer Suite sensor (VIIRS NOAA-20)

3 days ago · During the day, the imagery looks approximately as it would when viewed with human eyes from space. At night, the blue colors represent liquid water clouds such as fog and stratus, while gray to white indicate higher ice clouds, and the city lights come from a static database derived from the VIIRS Day Night Band.

Nov 22, 2024 · Provides environmental data and products for near real-time observation of the Great Lakes to support environmental science, decision making, and supporting research.

Apr 16, 2024 · The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite acquired a true-color image of Lakes Michigan and Huron on that same day. The Great Lakes are a series of five freshwater lakes that sprawl across about 94,250 square miles in east-central North America.

Near real-time and archived high resolution, true color MODIS images over the USA acquired from the NASA Terra and Aqua satellites.