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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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Islands are some of the most beautiful, peaceful, violent, desolate and unique places on Earth. While experiencing a tropical island
1 G. }0 u5 g. |5 Tfrom its sandy beaches, or a volcanic island from its towering peaks is wonderful, experiencing them from above can be inspiring as well.. D# q; r$ v' M
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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./ R6 r/ D" u- Z' u" i  i' n/ g
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Atafu Atoll, Tokelau, Pacific Ocean/ L% V$ Y% c* p6 y, Z

4 ?: s/ a: B$ g! X1 @1 HAround 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
5 K0 W: m8 D0 z& E! m3 d7 Z, Btvb now,tvbnow,bttvbmiles wide and is the smallest of three atolls in the Tokelau Islands, a New Zealand territory.
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  t8 ]$ C) m# ^7 P7 G2 s' ptvb now,tvbnow,bttvbAtafu is made up of coral reefs that surrounded the flanks of a volcano that has since become inactive and submerged. Like many tropical 公仔箱論壇: L8 ^2 _' ]" g/ t/ a2 J4 v
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.% r* K- X  d- m# q; B2 V7 E

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5 m$ m' |: k1 F3 _, k5 _公仔箱論壇Onekotan Island, Russia
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. y5 u  m. e0 d" n* dTVBNOW 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。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
2 j. Q" `. [* N5 c2 Ztvb now,tvbnow,bttvba caldera that subsequently filled with water. The island inside the caldera is known as Krenitzyn Peak, which is the highest point on 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。9 P! p' {5 o, e2 T/ U4 Q7 K0 k
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
/ E0 C, i* @9 z( `! H2 gcaused by the subduction of the Pacific Plate beneath the Eurasian Plate. Subduction can also generate some of the largest earthquakes
* y- W$ Z5 `0 twww1.tvboxnow.comon Earth, including a magnitude 9 here in 1952 which was followed a week later by Krenitzyn’s only historical eruption. This image was 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 h  w! `) @# S4 m% l3 J
captured by the Advanced Land Imager (ALI) on NASA’s Earth Observing-1 (EO-1) satellite on June 10, 2009.
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Galapagos Islands, Pacific Ocean
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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 公仔箱論壇* f+ x" P5 }9 m% W3 M7 i, O( U
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, % G4 `% ]! y) S# }/ w
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 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。! [1 W& g1 c7 I" E9 z+ W# \3 H
7 satellite in 2001.
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+ W# r1 Y; \) M+ a& Etvb now,tvbnow,bttvbMaldives, Indian Ocean
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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,
, S8 o" i5 G+ W3 {9 u, s' }8 ]. 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。the average elevation of which is a little more than 3 feet. It is probably the lowest country in the world.( A  Y5 ~8 W" [9 S/ p

) x+ v" @, Y  N( K/ Q+ v1 o+ F公仔箱論壇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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Henrietta Island, East Siberian Sea
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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 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。! [6 l5 o" J# Z+ T0 `4 ?% }
younger sedimentary rocks. This image was taken by the Advanced Land Imager (ALI) on NASA’s Earth Observing-1 satellite on April 30, 2009.公仔箱論壇8 g/ O7 j! g- V3 q+ [9 @- ]

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Eleuthera 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
0 \8 f% G5 R6 I1 a# Q, S; qof coral reefs and deposited in dunes by ocean currents.
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1 T; W! \1 S) T( ~* \- Jwww1.tvboxnow.comThis 2002 image was captured by astronauts aboard the International Space Station. Located in the middle of the Bahamas, Eleuthra Island
( D' |2 r$ P: @; U3 S" Q" r; Itvb now,tvbnow,bttvbis 110 miles long, and in places just over a mile wide. Around 8,000 people live there.
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Augustine Volcano, Alaskawww1.tvboxnow.com0 W% c4 R5 K# @+ P+ R# b

/ ^, o5 o( y, R0 H$ d0 O6 c) _5 f+ atvb now,tvbnow,bttvbThe most active volcano in Alaska’s Aleutian arc, Augustine Volcano’s biggest historical eruption occurred in 1883. It has been erupting for
! o! q  I3 v$ W& ptvb now,tvbnow,bttvb40,000 years. This image, captured by The Advanced Spaceborne Thermal Emission and Reflection Radiometer on NASA ’s Terra satellite
9 q1 {2 K- Y! A' y) H& Cwww1.tvboxnow.comin April 2006, shows a steam or ash plume at the tail end of several months of explosive eruptions.公仔箱論壇, U3 c8 t% u. ^$ J" F

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  D5 }( }) A, Rwww1.tvboxnow.comLesser Sunda Islands, Indonesia
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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 www1.tvboxnow.com6 Z, V# {7 F& h' Z
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 ! y3 \$ U  ]  n! {% b4 P- s
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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% Z6 Q$ O3 l- w  b# I) K8 @+ ]) ~0 J, YTVBNOW 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。
) z7 J% t8 ?+ V# s2 J5 dHawaiian Islands, Pacific Ocean
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$ z& Z( f0 j: l8 S- l6 YThe 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2 O. G$ b/ O" y) T; T2 U
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。  @$ g' X) k/ G0 h
crust beneath them cooled.& R  M7 N2 [1 w) J5 n1 o

  _6 a6 T% B$ B. v8 ytvb now,tvbnow,bttvbToday, the hotspot is causing active volcanism on the Big Island of Hawaii. Kilauea Volcano has been erupting continuously since 1983. The rest
8 a% t% {! _, O, Q" Ytvb now,tvbnow,bttvbof the islands, which get older from right to left, are Maui, Kahoolawe, Lanai, Molokai, Oahu, Kauai and Niihau. This image was captured by the
* S2 z# L5 l1 PMODIS instrument aboard NASA’s Terra satellite.Hawaiian Islands, Pacific Ocean
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9 {  ^; t0 k2 ^) I- \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,
+ j" R3 ?# O" G2 `+ u2 C# yit 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 O  a+ x5 V" N- i1 w8 b
the crust beneath them cooled.
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% o6 d$ s5 J2 Y! i9 O; D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 www1.tvboxnow.com1 {  l3 q. t1 b2 ]
rest of the islands, which get older from right to left, are Maui, Kahoolawe, Lanai, Molokai, Oahu, Kauai and Niihau. This image was captured
5 ]1 a' S' U2 f+ B) Xtvb now,tvbnow,bttvbby the MODIS instrument aboard NASA’s Terra satellite.* U( E: j1 V: u6 p

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Alejandro Selkirk Island, South Pacific Oceantvb now,tvbnow,bttvb* H6 s! f+ X: f5 i6 J" i
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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
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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
" @( y4 D7 d- G6 c2 Wby the Landsat 7 satellite in 1999.
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0 i3 I( R1 F0 @: R! p6 ^* K公仔箱論壇Millennium Island, Republic of Kiribati, South Pacific Ocean
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Also 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。5 {' C1 @( V! Z, a
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
  B* ]0 t6 X; @, s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
4 ], z1 L0 p# ?1 N/ [% saboard the International Space Station on July 1, 2009.


作者: k23bb    時間: 2009-12-23 01:06 AM

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