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The images in this Envirocast®
Bulletin were taken by the Advanced Land Imager
(ALI) on NASA’s Earth Observing-1 satellite. They show Jamestown
Island, including the location of the original settlement and
the nearby James River, on May 1,
2007. Jamestown, Virginia welcomes its 400 years
anniversary today May 14, 2007. |
Jamestown

Zoom-in to Jamestown Island

In this image, the water of the James
River appears pale green, perhaps from a combination of sunlight
reflected off the surface and sediment in the water. On land,
colors range from buff to brown to deep green, depending on the
amount of vegetation. A meandering pattern of residential streets
appears near the top of the image—a clear sign of how technology
has changed the landscape since the original settlement.
One of the most striking features of
this image is a distinct line running across the southern portion
of Jamestown Island, separating forest in the north from low-lying
vegetation in the south. South of the line, several dark green
fingers of forest reach inland from the western shore. The College
of William and Mary describes Virginia’s
coastal plain as a “terraced landscape that stair-steps down
to the coast and to the major rivers.” The thick forest in the
north sits on land at a higher elevation, and the stands of trees
along the southwestern shore likely also rest on ridges of higher
land separated by river bottoms and developing bays.
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Environmental Impacts:
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On May 14, 1607, a group of London-based
entrepreneurs and accompanying laborers, collectively
known as the Virginia Company, made landfall at Jamestown,
Virginia, establishing the
first permanent English settlement in what is now the
United States. In May 2007, the United States celebrated
Jamestown’s 400th Anniversary, commemorating the
experiences of the European settlers, Native Americans,
and Africans whose lives and cultures intersected in the
earliest years of the American colonies.
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NASA joined the celebration to honor the spirit of
exploration that runs as a common thread throughout human
history. In honor of the anniversary, the Advanced Land
Imager
(ALI) on NASA’s Earth Observing-1 satellite took this
picture of Jamestown Island, including the location of the
original settlement and the nearby James River, on May 1,
2007.
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Careful studies have enabled historians and
scientists to piece together what kind of
environment greeted the Virginia Company in 1607. When
the first settlers arrived, what is now Jamestown Island
was a peninsula, and sea level was about 3 feet lower
than today. Erosion resulting from rising sea level
carved the island away from the mainland about two
centuries later. By early seventeenth century,
however, brackish (salty) water had already invaded the
James River, making freshwater scarce.
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Life was hard for the first settlers at
Jamestown. Historians’ opinions differ about the ability
of the original settlers to conquer the wilderness. Some
scholars suggest that the gentlemen in the Virginia
Company would have disdained hard work, others arguing
that everyone worked hard to help the colony survive.
Nevertheless, in the winter of 1609-1610, nearly 90
percent of the settlers
died in a period called “the starving time.”
Assorted culprits have been offered to explain the
die-off, but one factor was probably environmental. A
1998 tree-ring study indicated that, during that time, the
region suffered the worst drought in almost eight
centuries.
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