NASA image courtesy Jeff Schmaltz, LANCE/EOSDIS MODIS Rapid Response Team at NASA GSFC. Caption by Mike Carlowicz.
Upwelling currents and summer weather promoted a large bloom of floating, microscopic plants off the coast of Oregon and Washington.
https://github.com/davepinch/pinchy.cc/blob/master/content/sites/visibleearth.nasa.gov/images/84095/phytoplankton-bloom-off-the-pacific-northwest.md