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A rotating globe showing swaths of true color imagery from SeaWIFS fades to a globe showing ocean phytoplankton measurements from SeaWiFS. Regions of black in the ocean represent regions where cloud cover has so far prevented phytoplankton measurements.
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A rotating globe showing swaths of true color imagery from SeaWIFS fades to a globe showing ocean phytoplankton measurements from SeaWiFS. Regions of black in the ocean represent regions where cloud cover has so far prevented phytoplankton measurements. -
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SeaWiFS True Color Phytoplankton Concentration Global Biosphere
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SeaWiFS True Color Phytoplankton Concentration Global Biosphere -
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SeaWiFS
documented
the
rapid
demise
of
El
Nino
in
the
waters
around
the
Galapagos
Islands.
The
images
show
a
explosion
in
plankton
growth
as
the
warm
El
Nino
waters
blamed
for
choking
off
essential
ocean
nutrients
are
replaced
by
deep
cold
upwelled
waters.
The
false
color
images,
which
document
plankton
concentrations
a
period
from
May
9,
1998
to
May
31,
1998,
show
that
life
in
the
region
to
the
west
...
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Phytoplankton concentrations around the Galapagos Islands for May 9, May 18, May 22, and May 24, 1998 from SeaWIFS showing the dramatic return of sea life at the end of El Nino -
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Viewing North America (data begins at Sept. 97 to June 99)
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Viewing North America (data begins at Sept. 97 to June 99) -
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Zooming in to a region in the North Atlantic Ocean, north of Great Britaini, showing a large phytoplankton bloom
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Zooming in to a region in the North Atlantic Ocean, north of Great Britaini, showing a large phytoplankton bloom -
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The structure and extent of coral reefs can now, for the first time, be
monitored globally, thanks to new observations from NASAs Landsat 7
spacecraft. Detailed images of reefs from nearly 900 locations around the
world have been collected in the first year of the Landsat 7 mission.
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One year, 900 locations, thousands of coral reefs.
Thats the tally of NASAs Landsat 7 satellite as it continues to
deliver cutting edge images and information about the Earth.
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Landsat 7 measurements of live coral in the Carysfort Reef, the largest reef in the Florida Keys, matches detailed surveys taken on the ground, according to a joint study by Frank Muller-Karger, Serge Andrefouet, and Dave Palandro of the University of South Floridas College of Marine Science and Phil Dustan of the College of Charleston. The surface area of live coral in this reef has declined from more than 50 percent to less than 5 percent since1975. -
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Coral forms off shore from volcanic islands in
tropical latitudes, developing a barrier reef thats separated by a
growing lagoon.But over time, while the surrounding ocean wears
away the main body of the island, the coral ring remains.
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Landsat 7 sees the Earth differently than a camera. By detecting light in discretely separate ranges of color or more accurately, electromagnetic bands the instrument can tailor images to highlight particular features being studied by experts. The different shades in these images highlight various features specific to each coral colony. Patches of bright red show places where coral reefs are actively populated with living organisms. -
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Detailed images of reefs from nearly 900 locations around the
world have been collected in the first year of the Landsat 7 mission.
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Detailed images of reefs from nearly 900 locations around the world have been collected in the first year of the Landsat 7 mission. -
http:/
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The different shades in these images highlight various
features specific to each coral colony. Patches of bright red show places
where coral reefs are actively populated with living organisms.
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Coral forms off shore from volcanic islands in tropical latitudes. -
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