El Giro del Pacífico Sur
Si fueras una mota de fitoplancton, un giro subtropical no es el lugar en el que te gustaría vivir. Los giros son enormes corrientes superficiales circulares causadas por los vientos y la fuerza de Coriolis. Las floraciones de fitoplancton ocurren rara vez en ellos, porque el agua que fluye hacia el centro de la circulación es baja en nutrientes. Esta imagen muestra fitoplancton según lo observado por el satélite SeaWiFS entre 1997 y agosto de 1998. Las áreas con más fitoplancton son de color rojo, amarillo y verde. Las áreas con menos son de color azul y morado oscuro.
The South Pacific Gyre
If you were a speck of phytoplankton, a subtropical gyre is not the place you'd want to be living. Gyres are huge circular surface currents caused by winds and the Coriolis force. Phytoplankton blooms rarely occur in them because the water that flows toward the center of circulation is low in nutrients. This image shows phytoplankton loads as observed by the SeaWiFS satellite between 1997 and August 1998. Areas with the most phytoplankton are red, yellow, and green. Areas with the least are dark blue and purple.
Read a blog post about scientists cruising through the South Pacific Gyre at
http://earthobservatory.nasa.gov/blogs/fromthefield/2014/04/24/the-pacific-or-peaceful-ocean/?src=fb
Read more about these "marine deserts" from NASA Viz at
http://svs.gsfc.nasa.gov/vis/a010000/a010700/a010704/
Read more about gyres from SEOS at
http://www.seos-project.eu/modules/oceancurrents/oceancurrents-c02-p04.html
Read the definition of a gyre from the American Meteorological Society at
http://glossary.ametsoc.org/wiki/Gyres
Si fueras una mota de fitoplancton, un giro subtropical no es el lugar en el que te gustaría vivir. Los giros son enormes corrientes superficiales circulares causadas por los vientos y la fuerza de Coriolis. Las floraciones de fitoplancton ocurren rara vez en ellos, porque el agua que fluye hacia el centro de la circulación es baja en nutrientes. Esta imagen muestra fitoplancton según lo observado por el satélite SeaWiFS entre 1997 y agosto de 1998. Las áreas con más fitoplancton son de color rojo, amarillo y verde. Las áreas con menos son de color azul y morado oscuro.
The South Pacific Gyre
If you were a speck of phytoplankton, a subtropical gyre is not the place you'd want to be living. Gyres are huge circular surface currents caused by winds and the Coriolis force. Phytoplankton blooms rarely occur in them because the water that flows toward the center of circulation is low in nutrients. This image shows phytoplankton loads as observed by the SeaWiFS satellite between 1997 and August 1998. Areas with the most phytoplankton are red, yellow, and green. Areas with the least are dark blue and purple.
Read a blog post about scientists cruising through the South Pacific Gyre at
http://earthobservatory.nasa.gov/blogs/fromthefield/2014/04/24/the-pacific-or-peaceful-ocean/?src=fb
Read more about these "marine deserts" from NASA Viz at
http://svs.gsfc.nasa.gov/vis/a010000/a010700/a010704/
Read more about gyres from SEOS at
http://www.seos-project.eu/modules/oceancurrents/oceancurrents-c02-p04.html
Read the definition of a gyre from the American Meteorological Society at
http://glossary.ametsoc.org/wiki/Gyres
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