Cyanobacteria Algal Blooms and Remote Sensing
Landsat ETM+ RGB image (3, 2, 1 band combination) of Lake Bogoria, Kenya. The lake appears green due to high cyanobacterial biomass. Credit: NASA Landsat Program.
Three reservoirs in central Indiana—Eagle Creek, Geist and Morse—that provide drinking water for more than 800,000 people in greater Indianapolis are infected by cyanobacteria algal blooms. The red color indicates to more concentration of bactericla algae. Credit: Andy McGlashen, August 15, 2013, Environmental Monitor
Landsat ETM+ RGB image (3, 2, 1 band combination) of Lake Natron, Kenya-Tanzania, the sole breeding site for lesser flamingos in East Africa. The red color is due to extremophile bacteria that inhabit the lake’s hypersaline waters. Credit: NASA Landsat Program.
Number of days during 2013 with surface blooms of cyanobacteria observed in each pixel in Baltic Sea based on MODIS satellite data. Credit to SHMI
Summary of number of days with cyanobacterial blooms observed in each pixel in Baltic Sea during the period 2010-2013. Note that comparison between these results and results from the period 1997-2009 in the below image should not be made since the detection method is different. Credit to SHMI
Summary of number of days with cyanobacterial observed in each pixel in Baltic Sea during the period 1997-2009, based on NOAA-AVHRR satellite imagery. Year 2001 is missing due to antenna malfunction at the receiving station. Note that comparison of the results from 2010-2013 with previous years is not possible since the detection method is different. Credit to SHMI
Daily extent of cyanobacteria blooms in the Baltic Sea during 2013, detected by MODIS satellite imagery. Red bars correspond to surface bloom and yellow bars indicate subsurface bloom. The blue line represents the integrated cloud cover (in percent of the total area) over the whole analysed area. Credit to SHMI
Surface accumulations of cyanobacteria Nodularia in the Baltic Sea as detected by enhanced "true-color" MODIS imagery on July 30, 2003. Credit: Research Oceanographer: Mati Kahru at UC San Diego University
Blooms of blue-green algae in Madison Lakes. Credit: University of Wisconsin-Madison