Landsat 7,8, Sentinel:
Images will be posted here periodically depending on quality, availability and presence of algae. There are two active Landsat satellites (Landsat 7 and Landsat 8), which make nearly direct overhead passes of Lake Okeechobee every 16 days at approximately 11:45 a.m. Their orbits are evenly staggered so that one of the satellites passes every 8 days, taking an image of the entire lake. Seven days after each overhead pass, each Landsat satellite also images the western portion of the lake. Those images usually will not be included here. Landsat 7 has a broken instrument which causes black lines to appear on the imagery.
The European Space Agency Sentinel-2 satellites image the lake every few days.
Images will include false color SWIR (Short Wave Infrared) images, which make
the algae appear brighter than it is to the human eye.
Terra/Aqua/Suomi Last 7 days Dynamic Updates:
This page upates
automatically each day and dynamically pulls MODIS (Moderate Resolution Imaging
Spectroradiometer) and VIIRS (Visible Infrared Imaging Radiometer Suite) images
from three satellites.
The Terra, Aqua and Suomi satellites take lower resolution imagery of the entire planet each day. Terra typically makes its highest daylight "imagery" pass over Lake Okeechobee from North to South between 11:00 am and 1:00 pm. daily. Aqua and Suomi typically make their highest daylight passes over Lake Okeechobee from South to North between 2:00 pm and 3:30 pm daily. The angle of these satellites in relation to Lake Okeechobee varies greatly each day on the “imagery pass”. Thus, the quality of the imagery will vary, as will the amount of haze and sunlight reflection. Because Aqua and Suomi pass later in the afternoon, fewer of those images are included on this page due to afternoon thunderstorms blocking the view of the lake.
NCCOS HAB Images: There are known errors
in the data. Please read. This page displays post-processed imagery
NOAAs NCCOS HAB (National Centers for Coastal Ocean Science Harmful Algal Bloom
Monitoring System). A programming script crops each image to the Lake Okeechobee area and then juxtaposes the CIcyano product with the True Color product. Clouds in the right "true-color" image
indicate that the "Chlorophyll Cyanobacteria Index" image on the left is not