Water Quality

Earth Observatory
Surface Water
Water Blooms
Water Quality
Using satellite data, researchers connected harmful algal blooms with warm water and low water levels at one of Colorado’s largest reservoirs.
Posted July 6, 2026
Earth Observatory
Surface Water
Water Blooms
Water Quality
Vivid green blooms form, drift, and fade in Hartbeespoortdam reservoir over the course of a year.
Posted January 7, 2026
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