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標題: Out of the Blue: Islands Seen From Space [打印本頁]

作者: bchew    時間: 2009-12-22 09:10 AM     標題: Out of the Blue: Islands Seen From Space


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: ?8 {0 t0 B8 S' r. p2 L' r- jIslands are some of the most beautiful, peaceful, violent, desolate and unique places on Earth. While experiencing a tropical island TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。& c4 O5 l. l$ _5 ^3 a
from its sandy beaches, or a volcanic island from its towering peaks is wonderful, experiencing them from above can be inspiring as well.
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We’ve collected images taken by astronauts and satellites from space of some of the most interesting islands on the planet.5.39.217.77:8898) J8 J& V1 Y1 @* @& e

2 v7 Q- U( K2 y- P- z1 J公仔箱論壇Atafu Atoll, Tokelau, Pacific Ocean
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7 v! n- K  O7 C9 U$ V5.39.217.77:8898Around 500 people live on Atafu Atoll, mostly in a village that can be seen on the corner in the left of the image above. Atafu is just five 公仔箱論壇9 N1 l, p1 C0 e. m  F5 }+ D
miles wide and is the smallest of three atolls in the Tokelau Islands, a New Zealand territory.TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。4 l. h( t( g- C5 @2 Y! S

+ R( A8 U" q2 w( k5.39.217.77:8898Atafu is made up of coral reefs that surrounded the flanks of a volcano that has since become inactive and submerged. Like many tropical 5.39.217.77:88982 o5 a* g7 j& [# E
atolls, Atafu is very low lying and vulnerable to sea-level rise. This photograph was taken by astronauts aboard the International Space Station in January.
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Onekotan Island, Russia
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An island within an island was created after a big eruption around 9,000 years ago caused the peak of Onekotan’s volcano to collapse, forming tvb now,tvbnow,bttvb4 G8 A/ X2 t% }. e' R2 q
a caldera that subsequently filled with water. The island inside the caldera is known as Krenitzyn Peak, which is the highest point on the
. C' j5 a4 j# Y# qisland at around 4,300 feet.
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Onekotan is in Russia’s Kuril Islands between Japan and the tip of the Kamchatka Peninsula. The islands were formed by volcanic activity : V2 W! [0 b4 b) U  J% @1 ?
caused by the subduction of the Pacific Plate beneath the Eurasian Plate. Subduction can also generate some of the largest earthquakes
. U" l, Z) h& h' O& f2 ?TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。on Earth, including a magnitude 9 here in 1952 which was followed a week later by Krenitzyn’s only historical eruption. This image was 公仔箱論壇. Y: O/ w6 e0 f  [3 x
captured by the Advanced Land Imager (ALI) on NASA’s Earth Observing-1 (EO-1) satellite on June 10, 2009.! B" G# c& |# H, D/ g

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Galapagos Islands, Pacific OceanTVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。' U" i  s9 \/ b# ~$ V1 J
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The Galapagos Islands are the tops of volcanoes on the sea floor off the coast of South America along the equator. The volcanic activity
) l7 Y2 J' L! U$ U公仔箱論壇that formed the islands is thought to be the result of a plume of hot mantle material rising from deep in the Earth’s interior.
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The largest island, Isla Isabela, is made of the lava flows of six gently sloped shield volcanoes. The northernmost of Isabela’s volcanoes, 公仔箱論壇+ N2 E! d2 n6 U* J
at the top of the image above, is Wolf Volcano, which has erupted at least nine times since 1797. This image was taken by the Landsat 5.39.217.77:88987 s- p& G6 U$ n3 C& _: K
7 satellite in 2001.tvb now,tvbnow,bttvb. y8 J; ~" I9 F# ?5 h

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! `  A- I8 L/ S5.39.217.77:8898Maldives, Indian Oceantvb now,tvbnow,bttvb: r0 T1 {$ X: |& n
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The Maldives comprise 1,192 small coral islands adding up to just 115 square miles of territory. About 330,00 people live on the islands, 5.39.217.77:88986 k; ^- c4 l0 v0 M
the average elevation of which is a little more than 3 feet. It is probably the lowest country in the world.公仔箱論壇  Q8 J6 f* e& K. t/ {  L
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This image of the North and South Malosmadulu Atolls was taken in 2002 by the ASTER instrument aboard NASA’s Terra satellite.5.39.217.77:8898. D  M( v; W1 q# V6 H" s6 s
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Henrietta Island, East Siberian Sea
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1 \, o* [6 A, W4 Y6 I3 QThis glacier-covered Russian island is just 6 miles wide. Beneath the ice, the island is made up of 500-million-year-old volcanic rocks overlain by
- e! Z: z8 m4 H( Htvb now,tvbnow,bttvbyounger sedimentary rocks. This image was taken by the Advanced Land Imager (ALI) on NASA’s Earth Observing-1 satellite on April 30, 2009.tvb now,tvbnow,bttvb9 Q$ m1 P) ?5 p; p& {- x8 u7 l
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6 x& ?( b' X/ j0 f( Y4 I$ lEleuthera Island, Bahamas
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2 a$ d* r: V% e2 Q, b公仔箱論壇The spectacular underwater formations to the west of Eleuthera Island are made of calcium carbonate sand that has been eroded off
; U7 ?0 i. I0 `, A& Q/ p2 Dof coral reefs and deposited in dunes by ocean currents.
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9 _& g% ^# ?( K+ `. m' j5.39.217.77:8898This 2002 image was captured by astronauts aboard the International Space Station. Located in the middle of the Bahamas, Eleuthra Island
/ B/ B( j, d% L2 l$ Y公仔箱論壇is 110 miles long, and in places just over a mile wide. Around 8,000 people live there.TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。. n# W6 o% l* ~
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Augustine Volcano, Alaska
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The most active volcano in Alaska’s Aleutian arc, Augustine Volcano’s biggest historical eruption occurred in 1883. It has been erupting for
4 o1 V6 a% N9 J& |( d( I& L, ?40,000 years. This image, captured by The Advanced Spaceborne Thermal Emission and Reflection Radiometer on NASA ’s Terra satellite
" |/ ]9 q$ }5 m3 c4 \. ?5 o: k" q公仔箱論壇in April 2006, shows a steam or ash plume at the tail end of several months of explosive eruptions.6 s+ A* Z. m, o3 ]- O

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Lesser Sunda Islands, Indonesiatvb now,tvbnow,bttvb, H- S# n: K8 G% j! C- U! T

0 Q) Z8 m% }" W3 b9 K8 btvb now,tvbnow,bttvbThe three largest islands in this image, and many smaller ones, make up Indonesia’s Komodo National Park which was established in 1980 to protect
$ A1 w! D7 J  r/ Y3 E1 W9 F: x$ x公仔箱論壇the world’s largest lizard species, Komodo dragon. The total area of the park is 230 square miles. The islands are volcanoes caused by the collision 5.39.217.77:8898. \2 x5 t' A1 I) N
of two tectonic plates. This image was captured by the Advanced Spaceborne Thermal Emission and Reflection Radiometer on NASA’s Terra satellite in 2000.
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Hawaiian Islands, Pacific Ocean
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& s0 [% X/ |% H) c6 ZThe Hawaiian Islands were formed by an upwelling plume of hot mantle material, called a hotspot. As the Pacific plate moved over the hotspot, it 公仔箱論壇9 C' F& A$ J. o3 m' }; n! x
formed a chain of islands that first grew larger as they actively erupted, and then slowly eroded and sank below the surface of the ocean as the TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。2 P# E6 n  V5 {8 e, y
crust beneath them cooled.' K( ~6 {' z2 _4 _. ~; M; ?# [% a

3 S, L# ^% D1 `公仔箱論壇Today, the hotspot is causing active volcanism on the Big Island of Hawaii. Kilauea Volcano has been erupting continuously since 1983. The rest tvb now,tvbnow,bttvb, d9 @1 ~0 W( @& u
of the islands, which get older from right to left, are Maui, Kahoolawe, Lanai, Molokai, Oahu, Kauai and Niihau. This image was captured by the
& d9 M) {! H4 u7 ^, sTVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。MODIS instrument aboard NASA’s Terra satellite.Hawaiian Islands, Pacific Ocean
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The Hawaiian Islands were formed by an upwelling plume of hot mantle material, called a hotspot. As the Pacific plate moved over the hotspot,   f) i9 h& S5 Q0 }( Q0 }- q5 R
it formed a chain of islands that first grew larger as they actively erupted, and then slowly eroded and sank below the surface of the ocean as TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。8 `8 _' G# B$ u
the crust beneath them cooled.
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Today, the hotspot is causing active volcanism on the Big Island of Hawaii. Kilauea Volcano has been erupting continuously since 1983. The TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。2 n4 X5 B, Z8 }+ o
rest of the islands, which get older from right to left, are Maui, Kahoolawe, Lanai, Molokai, Oahu, Kauai and Niihau. This image was captured ' P# B$ D* x5 Q
by the MODIS instrument aboard NASA’s Terra satellite.TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。  z0 C. K/ t) h( f

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% d5 y, Q1 v/ p/ G2 hAlejandro Selkirk Island, South Pacific Ocean
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+ W# g; |' o9 |TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。This small member of the Juan Fernandez Islands off the coast of Chile measures just under a mile across. But its 5,000 feet of elevation is high enough
# ~" Z( [4 ~  |3 d公仔箱論壇to reach the layer of stratocumulus clouds pictured above. The result is a type of flow known as a von Karmen vortex street. This striking, curly tvb now,tvbnow,bttvb, p* m3 @; v' B' }' i+ N0 u
pattern of eddies can also be seen in clouds, and fluids or air moving past rounded objects such as an airplane wing. This image was taken
" k* Y# ~; J. L) \, h, c  u公仔箱論壇by the Landsat 7 satellite in 1999.公仔箱論壇; J4 g2 i5 R, ^

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Millennium Island, Republic of Kiribati, South Pacific Ocean
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! w8 Y2 W. _" y; v- E公仔箱論壇Also known as Caroline Island, Millennium Island is made of coral reefs that grew around a volcano, which is now underwater, leaving behind a
" Z; E6 D% Y3 ?2 b3 F公仔箱論壇central lagoon. The maximum elevation of the island is less than 20 feet above sea level. In the past, the island has been inhabited and mined ) L; E9 n+ b! H- B& [
for guano, though today there are no people and it is among the world’s most pristine tropical islands. This image was taken by astronauts TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。' G$ h9 b( \' _1 O! ?& E
aboard the International Space Station on July 1, 2009.


作者: k23bb    時間: 2009-12-23 01:06 AM

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