Phytoplankton Blooms Detected Off Mid-Atlantic Coast in May 2026
NASA satellites, including Aqua and PACE, have captured striking images of colorful waters off the Mid-Atlantic coast, particularly near New Jersey, Delaware, Maryland, and Virginia. The phenomenon, observed since early April 2026, is attributed to phytoplankton blooms mixed with sediment and organic matter from river outflows. The blooms are dominated by diatoms and coccolithophores, which thrive in nutrient-rich waters during spring. Diatoms typically appear greenish in satellite imagery, while coccolithophores create a chalky turquoise hue due to their calcite-based scales. These blooms play a critical role in marine ecosystems, acting as primary producers and carbon recyclers. The PACE mission, launched in 2024, has enhanced scientists' ability to identify such blooms in optically complex coastal zones. Chlorophyll mapping from PACE data confirmed the presence of phytoplankton blooms in the region.