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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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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。. r) T2 ?8 ?8 L4 e
Islands are some of the most beautiful, peaceful, violent, desolate and unique places on Earth. While experiencing a tropical island tvb now,tvbnow,bttvb' C& v0 |2 I0 p- c- ^
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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9 G4 W; R: {% y) G. ^2 ]; b9 [, |We’ve collected images taken by astronauts and satellites from space of some of the most interesting islands on the planet.公仔箱論壇/ p/ n) B" ~* `# M- m* Z: R  [
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Atafu Atoll, Tokelau, Pacific Ocean
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+ ^" M1 ]* H5 C$ H9 Otvb now,tvbnow,bttvbAround 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 www2.tvboxnow.com* u* f# a; `! y1 y3 ~! }. }
miles wide and is the smallest of three atolls in the Tokelau Islands, a New Zealand territory.
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( i3 h( q. {- f: Swww2.tvboxnow.comAtafu is made up of coral reefs that surrounded the flanks of a volcano that has since become inactive and submerged. Like many tropical
8 h/ f4 k- V5 x4 f, I# d7 j' qwww2.tvboxnow.comatolls, Atafu is very low lying and vulnerable to sea-level rise. This photograph was taken by astronauts aboard the International Space Station in January.www2.tvboxnow.com( f+ N) c# s' K1 f8 v( T5 B0 q

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* }' O: n$ b* p0 v7 ~. |0 vwww2.tvboxnow.comOnekotan Island, Russiatvb now,tvbnow,bttvb3 N# e5 M( `  n
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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
/ _+ x2 w; ?( C" r$ R$ c$ @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 a; k+ \) g1 w: u) _: l
island 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
* s4 |6 `3 Z& t0 g# {; G! ecaused by the subduction of the Pacific Plate beneath the Eurasian Plate. Subduction can also generate some of the largest earthquakes
9 Z% Y* K- B- v7 j& ?8 W7 ron Earth, including a magnitude 9 here in 1952 which was followed a week later by Krenitzyn’s only historical eruption. This image was
/ e* G6 q5 f0 q' `captured by the Advanced Land Imager (ALI) on NASA’s Earth Observing-1 (EO-1) satellite on June 10, 2009.tvb now,tvbnow,bttvb$ G, r  g8 X! F1 E1 N  S

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Galapagos Islands, Pacific Ocean
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# c$ Y1 Y- b' d( A& Wtvb now,tvbnow,bttvbThe Galapagos Islands are the tops of volcanoes on the sea floor off the coast of South America along the equator. The volcanic activity
4 w# a0 O# R1 P4 u6 q) y- E/ z$ n+ Jthat formed the islands is thought to be the result of a plume of hot mantle material rising from deep in the Earth’s interior.tvb now,tvbnow,bttvb' O+ J- ^/ ]: \3 I5 w
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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,
" ~4 r- [3 N6 w: Q; K$ O/ f7 C& D( Kat 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
. I& C8 s( `9 U" |6 E, n! ?www2.tvboxnow.com7 satellite in 2001.
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+ F) d( R, |" H. h  k5 `& _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。Maldives, Indian Ocean
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) n: C6 S3 p1 GThe Maldives comprise 1,192 small coral islands adding up to just 115 square miles of territory. About 330,00 people live on the islands,
( G# f& g: V" m  M/ ]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。the average elevation of which is a little more than 3 feet. It is probably the lowest country in the world./ V0 H; {; ~7 T  u! `, d

% m/ l1 v4 M# i- 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。This 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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1 u; @4 l) ^  F0 ?) fHenrietta Island, East Siberian Sea" m$ S; l, b% n4 u' T/ n. K( |

. k4 R3 b( m  ^1 `/ K  tThis 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
7 o8 o7 p8 M. }" F# B8 J公仔箱論壇younger 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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! l! j2 G+ n/ f% m6 K4 H7 W( F- V5 REleuthera Island, Bahamas
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The spectacular underwater formations to the west of Eleuthera Island are made of calcium carbonate sand that has been eroded off 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。' l6 Y" k+ C: Y7 I+ [# v. S7 T+ N$ [. `
of coral reefs and deposited in dunes by ocean currents.
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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
; U5 G7 c+ c+ U7 W9 r公仔箱論壇is 110 miles long, and in places just over a mile wide. Around 8,000 people live there.
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( |1 {' R/ A" j# Z, \( CTVBNOW 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。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。- V  `/ N  @% |
Augustine Volcano, Alaskawww2.tvboxnow.com. P1 N- H) m3 `1 x1 I. _
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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
! |$ r. |+ Y# J8 m- _- x/ f) ^6 x$ Jwww2.tvboxnow.com40,000 years. This image, captured by The Advanced Spaceborne Thermal Emission and Reflection Radiometer on NASA ’s Terra satellite
+ ]! c. b0 ?0 `1 R7 K$ J$ k5 iin April 2006, shows a steam or ash plume at the tail end of several months of explosive eruptions.
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8 Q, x0 {' C9 M7 ^: u  A' Ewww2.tvboxnow.comLesser Sunda Islands, Indonesia) f) {0 ~! A: u7 v. U2 Z
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The three largest islands in this image, and many smaller ones, make up Indonesia’s Komodo National Park which was established in 1980 to protect www2.tvboxnow.com9 X# y: z8 C, k8 O, Z1 M. H
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
7 L, _3 p4 q- C  E2 |9 x% Y& D; L( wof two tectonic plates. This image was captured by the Advanced Spaceborne Thermal Emission and Reflection Radiometer on NASA’s Terra satellite in 2000.tvb now,tvbnow,bttvb7 G  w& ?6 G: W; Y7 n
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9 u9 D6 ?/ B0 P) k" ptvb now,tvbnow,bttvbHawaiian Islands, Pacific Ocean7 X$ w) F2 @2 F  {
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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, it
7 c4 N1 N. B! z# |+ K/ n7 x; @www2.tvboxnow.comformed 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
2 R; S! Z4 p4 i0 H( kcrust beneath them cooled.. e8 r. ~4 E4 y4 e7 T( Q% i1 Z

* P0 ]9 z6 [' A) g) R! T+ s. {! BToday, the hotspot is causing active volcanism on the Big Island of Hawaii. Kilauea Volcano has been erupting continuously since 1983. The rest 公仔箱論壇; x# S* w1 u  o. g6 e1 C* Z. 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 www2.tvboxnow.com. C# ?, v) x" W3 f3 v9 D3 x
MODIS instrument aboard NASA’s Terra satellite.Hawaiian Islands, Pacific Ocean( A6 d! G! ~  T2 h" B/ U( e

+ p3 i4 |3 `" V& S$ ^' s3 q7 g( X公仔箱論壇The Hawaiian Islands were formed by an upwelling plume of hot mantle material, called a hotspot. As the Pacific plate moved over the hotspot,
& _5 M6 a1 n& m9 m7 i6 C* x6 e) Qit 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
$ N% e' F9 B, C$ a! {& Dwww2.tvboxnow.comthe 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 % @* U$ `7 p. `: C2 {, {4 m
rest of the islands, which get older from right to left, are Maui, Kahoolawe, Lanai, Molokai, Oahu, Kauai and Niihau. This image was captured
1 X7 C; Q) c* g3 ZTVBNOW 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。by the MODIS instrument aboard NASA’s Terra satellite.公仔箱論壇* \. N8 S3 _, N/ I8 ]
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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' C+ t4 E* `4 L8 z& n

; n' t& X6 L6 Z" L$ N, fTVBNOW 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。Alejandro Selkirk Island, South Pacific Ocean  ~1 C8 W9 }# D, O8 B6 O3 b: r
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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 tvb now,tvbnow,bttvb/ r7 S! ?' O2 }- O
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
  \2 {, s6 H8 i1 \tvb now,tvbnow,bttvbpattern 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 www2.tvboxnow.com8 U3 K5 T/ Z% N! g7 ]; e6 l, F; K# e
by the Landsat 7 satellite in 1999.公仔箱論壇" ?; v( r# ]& R9 Z8 t- [7 H
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。# ?: O- O& s3 d; ]0 I7 q% V5 n

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0 |# O& Y2 s( N$ p. XMillennium Island, Republic of Kiribati, South 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。7 b. e  }+ B: D6 m/ y$ V

7 S0 k3 O3 A8 p% F4 b) P7 NTVBNOW 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。Also known as Caroline Island, Millennium Island is made of coral reefs that grew around a volcano, which is now underwater, leaving behind a
' L3 \5 ^: R5 V( Y3 ^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
' a; P$ I1 s0 g( x  e, \7 o公仔箱論壇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。  s; ]; _- T6 K; }. a& _: @
aboard the International Space Station on July 1, 2009.


作者: k23bb    時間: 2009-12-23 01:06 AM

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