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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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3 O5 U5 m" l: e, u- k7 c公仔箱論壇Islands are some of the most beautiful, peaceful, violent, desolate and unique places on Earth. While experiencing a tropical island
& E: d0 T5 v% z! M7 f! A公仔箱論壇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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+ \+ g# @: \% g, c0 v3 c公仔箱論壇We’ve collected images taken by astronauts and satellites from space of some of the most interesting islands on the planet.tvb now,tvbnow,bttvb6 a% V( z2 n* u

/ k3 C; y% z+ l2 B3 }Atafu Atoll, Tokelau, Pacific Ocean
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- `9 Z% N, w" R* h公仔箱論壇Around 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 tvb now,tvbnow,bttvb/ I5 J# n, b* I' s
miles wide and is the smallest of three atolls in the Tokelau Islands, a New Zealand territory.2 X! n' M% O) D  n( q8 k
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Atafu is made up of coral reefs that surrounded the flanks of a volcano that has since become inactive and submerged. Like many tropical
4 ^, @, e# Y8 ~! ]$ V. l- _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.www1.tvboxnow.com: R. S4 U8 K' N2 j
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Onekotan Island, Russia& X6 g" ^! ^/ H+ W. @8 e5 k4 ]

  w2 T+ o+ h, @  m# f5 X公仔箱論壇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
7 j9 V0 C9 u: a) A6 J公仔箱論壇a caldera that subsequently filled with water. The island inside the caldera is known as Krenitzyn Peak, which is the highest point on the 3 l4 G: S2 v7 T8 ^! C0 k9 E0 {
island at around 4,300 feet.+ j* e( A3 q$ l6 P$ O

+ U" O3 F+ ]3 x- h4 V# KTVBNOW 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。Onekotan is in Russia’s Kuril Islands between Japan and the tip of the Kamchatka Peninsula. The islands were formed by volcanic activity
, a- ^  z6 v+ P. R! ]2 oTVBNOW 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。caused by the subduction of the Pacific Plate beneath the Eurasian Plate. Subduction can also generate some of the largest earthquakes / n# r1 R' L, p6 F# h) k
on Earth, including a magnitude 9 here in 1952 which was followed a week later by Krenitzyn’s only historical eruption. This image was
3 ~- q# f; |" O! ?% |captured by the Advanced Land Imager (ALI) on NASA’s Earth Observing-1 (EO-1) satellite on June 10, 2009.www1.tvboxnow.com7 c' U, u7 c% w8 U5 X7 n

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- g0 a/ S/ d3 q4 F1 C1 T# W0 O公仔箱論壇Galapagos Islands, Pacific Ocean4 n2 r& L4 _! z
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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 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 h, P5 w9 N( K( ]* b& i
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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/ M! `. c$ G# P# N: Ftvb now,tvbnow,bttvbThe largest island, Isla Isabela, is made of the lava flows of six gently sloped shield volcanoes. The northernmost of Isabela’s volcanoes,
- S  L, ]9 D  o  _* atvb now,tvbnow,bttvbat 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 公仔箱論壇+ t; x& _) X6 n
7 satellite in 2001.
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7 ~* V% A6 t1 R+ ]4 qMaldives, Indian 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。' t/ ]8 Y/ U9 M# h" }8 M1 ]
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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, 公仔箱論壇4 D8 Z+ X* i7 @( u$ o# r, v
the average elevation of which is a little more than 3 feet. It is probably the lowest country in the world.tvb now,tvbnow,bttvb- g3 w9 q" i1 p. M( F

, ^/ F* b) P* x! M  v5 Ttvb now,tvbnow,bttvbThis image of the North and South Malosmadulu Atolls was taken in 2002 by the ASTER instrument aboard NASA’s Terra satellite.
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* a6 r; Q- b3 D  R, btvb now,tvbnow,bttvbHenrietta Island, East Siberian SeaTVBNOW 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。3 P2 L. x& u: @8 |

# a- A/ h" g4 o# E" V8 W/ b% RTVBNOW 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 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
5 A% K5 A9 y5 Jwww1.tvboxnow.comyounger sedimentary rocks. This image was taken by the Advanced Land Imager (ALI) on NASA’s Earth Observing-1 satellite on April 30, 2009.
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Eleuthera Island, Bahamas
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  g& _" e2 G5 O# T& W0 Nwww1.tvboxnow.comThe spectacular underwater formations to the west of Eleuthera Island are made of calcium carbonate sand that has been eroded off
/ E& a5 W$ \5 Q# }/ }8 F6 @公仔箱論壇of coral reefs and deposited in dunes by ocean currents.tvb now,tvbnow,bttvb/ S9 Z, z2 B# c
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This 2002 image was captured by astronauts aboard the International Space Station. Located in the middle of the Bahamas, Eleuthra Island公仔箱論壇# O# B2 f/ Q# j" |: ^+ y
is 110 miles long, and in places just over a mile wide. Around 8,000 people live there.4 O6 Z7 y% c8 ?/ U; `6 `  Q4 e" p

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+ n  \4 Y. R% p8 {( j6 Z2 RAugustine Volcano, Alaska公仔箱論壇5 `- v0 g9 A1 Q3 F6 t3 f- W/ P
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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
$ K& y7 k+ d! a, Q' v  OTVBNOW 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。40,000 years. This image, captured by The Advanced Spaceborne Thermal Emission and Reflection Radiometer on 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。) }9 v9 `, |7 b5 a
in April 2006, shows a steam or ash plume at the tail end of several months of explosive eruptions.公仔箱論壇. y! j! s: T1 a( X  x

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Lesser Sunda Islands, Indonesia8 ?! J4 [. i% I; z6 n6 H; H

, ?; o' t3 a, awww1.tvboxnow.comThe three largest islands in this image, and many smaller ones, make up Indonesia’s Komodo National Park which was established in 1980 to protect ; n8 _' j9 d9 z4 ^3 p- Z1 k
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 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。! Z/ g# {* i+ T  n* {! K- d/ l
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公仔箱論壇% Y$ F1 d; T; i5 B: Y

) ~3 m/ u* F; f) T5 ~8 Q9 JThe Hawaiian Islands were formed by an upwelling plume of hot mantle material, called a hotspot. As the Pacific plate moved over the hotspot, it
1 P6 ]8 f  r# `4 R; l4 {1 xformed 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
) Z# N6 |, R2 ?0 J3 H4 Fcrust beneath them cooled.
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) n# z: F; ~: F1 aTVBNOW 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。Today, the hotspot is causing active volcanism on the Big Island of Hawaii. Kilauea Volcano has been erupting continuously since 1983. The rest 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。0 _7 w& {' H5 W' b% f
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 www1.tvboxnow.com5 N" x/ Q, L& H* v8 P3 Y# N
MODIS instrument aboard NASA’s Terra satellite.Hawaiian Islands, Pacific Ocean( d$ R9 U& F  R" h; Q
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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,
* ]; B, [" Z" Y4 fit 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 2 Y: ]$ ?1 @, S) T; O9 }
the crust beneath them cooled.公仔箱論壇# P* F. Z$ t) |

# v( |0 ]% n% b$ V3 rwww1.tvboxnow.comToday, the hotspot is causing active volcanism on the Big Island of Hawaii. Kilauea Volcano has been erupting continuously since 1983. The 公仔箱論壇7 \/ s0 K. c/ c+ X+ U+ 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 / N+ [* s9 i1 C" e
by the MODIS instrument aboard NASA’s Terra satellite.# `7 J$ s9 f; S6 Q/ ^

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# ^& h: B) s0 P' M/ Twww1.tvboxnow.comAlejandro Selkirk Island, South Pacific Ocean
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, s* Y) t+ _, ~9 ?3 awww1.tvboxnow.comThis 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
7 {" O8 p, j5 dwww1.tvboxnow.comto 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
( g& S7 ^' F1 Y2 w2 u2 Ipattern 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
5 `9 o* @) F. ^% G. dby the Landsat 7 satellite in 1999., A; k  r6 B& f2 g8 I

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+ [; \0 }# {3 Z  p' J3 }公仔箱論壇Millennium Island, Republic of Kiribati, South Pacific Oceantvb now,tvbnow,bttvb& T' ?. o& ~2 Q6 g# u

5 L) F- v4 b. y' N# f; zwww1.tvboxnow.comAlso known as Caroline Island, Millennium Island is made of coral reefs that grew around a volcano, which is now underwater, leaving behind a 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。/ t; k; }# t3 j, a% Z: W0 O3 @: b
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
- N! A8 r. M& u$ Efor guano, though today there are no people and it is among the world’s most pristine tropical islands. This image was taken by astronauts www1.tvboxnow.com: J7 ^+ p  v7 C& k& B  f
aboard the International Space Station on July 1, 2009.


作者: k23bb    時間: 2009-12-23 01:06 AM

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