
ISS024-E-14580
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Hurricane Igor from the Space Station: Astronauts aboard the
International Space Station took this digital photograph of the eye
of Hurricane Igor at 10:56 Atlantic Daylight Time (13:56 UTC) on
September 14, 2010. The storm was a category four hurricane on the
Saffir-Simpson scale of intensity.At the time of the image, Igor
was centered in the Atlantic Ocean near 18° N 52° W and slowly moving
west-northwest at 11 kilometers (7 miles) per hour, according to the
U.S. National Hurricane Center. Maximum sustained winds of 213 km
(132 mi.) per hour, with gusts to 259 km (161 mi.) per hour.
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ISS024-E-13690
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Es Safa Volcanic Field, Syria: Es Safa is a striking basaltic
volcanic field located to the southeast of Damascus, Syria. It lies
within the larger Harrat Ash Shamah—the largest volcanic field on the
Arabian tectonic plate. Harrat Ash Shamah parallels the Red Sea and
extends from northeastern Israel, through southern Syria and Jordan,
and into Saudi Arabia, covering an area of over 50,000 square
kilometers (19,000 square miles). Es Safa contains numerous vents
that have been active during the Holocene Epoch (beginning
approximately 12,000 years ago). The most recent recorded activity
was a boiling lava lake observed in the area around 1850. The dark
lava flow field (center) likely represents the latest activity of the
volcanic field, and is emplaced over older, lighter colored flows.
The older flow surfaces also have light tan sediment accumulating in
shallow depressions, in contrast to the relatively pristine surfaces
of the darker, younger flows. Cinder cones are scattered
throughout the Es Safa field, but many are aligned along
northwest-southeast trends that likely indicate faults through which
magma rose to the surface. Two such alignments are visible at image
left. To the southeast (image right) a small reservoir feeds water
distribution ditches extending northwards.
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ISS024-E-15121
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Twitchell Canyon Fire, Central Utah: The Twitchell Canyon
Fire, near central Utah’s Fishlake National Forest, was reported to
cover approximately 13,383 hectares (134 square kilometers, or 33,071
acres) as of September 21, 2010. The crew on the International Space
Station (ISS) took this photograph of the smoke plumes generated by
fires close to the southwestern edge of the burned area. The fire was
started by a lightning strike on July 20, 2010. The photograph is
highly oblique; that is, it was taken at an angle rather than looking
straight down towards the Earth’s surface (a nadir view). The ISS was
located over a point approximately 509 kilometers (316 miles) to the
northeast, near the Colorado/Wyoming border, at the time.
Southwesterly winds stretched smoke plumes to the northeast. While
the Twitchell Canyon region is sparsely populated, Interstate Highway
15 is visible at the upper right. A MODIS image acquired a day
earlier than the astronaut photograph provides a regional view of the
fire.
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ISS024-E-14233
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Smoke Plume, Caspian Sea, Kazakhstan: This broad view of the
north coast of the Caspian Sea shows a smoke plume (image left) and
two river deltas (image bottom and lower right). The larger delta is
that of the Volga River which appears prominently here in sunglint
(light reflected off a water surface back towards the observer), and
the smaller less prominent delta is that of the Ural River. Wide
angle, oblique views – taken looking outward at an angle, rather than
straight down towards the Earth - such as this give an excellent
impression of how astronauts onboard the International Space Station
view the Earth. For a sense of scale, the Caucasus Mts. (across the
Caspian , image top right) are approximately 1100 km to the southwest
of the International Space Station’s nadir point location - the point
on the Earth directly underneath the spacecraft - at the time this
image was taken. The smoke plume appears to be sourced in the
dark-toned coastal marsh vegetation along the outer fringe of the
Ural River delta, rather than in a city or at some oil storage
facility. Although even small fires produce plumes that are long and
bright and thus easily visible from space, the density of the smoke
in this plume, and its 350-km length across the entire north lobe of
the Caspian Sea, suggest it was a significant fire. The smoke was
thick enough nearer the source to cast shadows on the sea surface
below. Lines mark three separate pulses of smoke, the most recent,
nearest the source, extending directly south away from the coastline
(image lower left). With time, plumes become progressively more
diffuse. The oldest pulse appears to be the thinnest, casting no
obvious shadows (image center left).
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ISS024-E-14071
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ISS View of the Southwestern USA: This panoramic view of the
southwestern United States and Pacific Ocean was taken by an
astronaut looking out at an angle from the International Space
Station (ISS). While most unmanned satellites view the Earth from a
nadir perspective—collecting data while looking “straight
down”—astronauts onboard the ISS can acquire imagery at a wide range
of viewing angles using handheld digital cameras. The ISS nadir
point—the point on Earth’s surface directly below the spacecraft—was
located in northwestern Arizona, approximately 260 kilometers (160
miles) to the east-southeast, when this image was taken. The image
includes parts of Arizona, Nevada, Utah, and California, as well the
coastline of Baja California, Mexico (image center left). The Las
Vegas metropolitan area appears as a gray region adjacent to the
Spring Mountains and Sheep Range (both covered by white clouds). The
Grand Canyon, located on the Colorado Plateau in Arizona, is visible
to the east of Las Vegas, with the blue waters of Lake Meadin
between. The image also includes the Mojave Desert, stretching
north from the Salton Sea to the Sierra Nevada mountain range. The
Sierra Nevada is roughly 640 km long (north-south) and forms the
boundary between the Central Valley of California and the adjacent
Basin and Range physiographic province. The Basin and Range is so
called because of the pattern of long linear valleys separated by
parallel mountain ranges. The landscape was formed by extension and
thinning of the Earth’s crust.
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