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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 p! S0 f. V& _+ M  Ftvb now,tvbnow,bttvbIslands are some of the most beautiful, peaceful, violent, desolate and unique places on Earth. While experiencing a tropical island
9 j7 E1 {; h+ ?. y9 v, V, ]* Rfrom its sandy beaches, or a volcanic island from its towering peaks is wonderful, experiencing them from above can be inspiring as well.tvb now,tvbnow,bttvb4 |6 N; A, {/ g4 Q+ g+ }

7 C- p/ I1 R' e% f, G3 atvb now,tvbnow,bttvbWe’ve collected images taken by astronauts and satellites from space of some of the most interesting islands on the planet.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。7 D( Q( ]" \! Z: I, k
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Atafu Atoll, Tokelau, 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。6 s. F# \4 |; |9 C* X; j
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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
- f9 K; N0 p6 Y" [# ftvboxnow.commiles 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。: K. z' {' l* Y, m4 Y9 T- Y6 m2 L: H

# u" _4 x! o3 B4 K+ k公仔箱論壇Atafu is made up of coral reefs that surrounded the flanks of a volcano that has since become inactive and submerged. Like many tropical
) \; W6 ]+ w" M4 ~) j0 t+ C- Q# Qtvb now,tvbnow,bttvbatolls, 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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$ K+ q; \. I+ Y  b2 eOnekotan Island, Russia
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9 t' N; `% w& m- fAn 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
- }4 f8 ~" s- l" E( Otvb 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。; q+ o- @/ J( A: h- u0 r+ ]4 ^* ?0 [# r
island at around 4,300 feet.公仔箱論壇+ D/ R8 z% A7 W" \. S

) H" B8 c1 K% o7 Vtvboxnow.comOnekotan is in Russia’s Kuril Islands between Japan and the tip of the Kamchatka Peninsula. The islands were formed by volcanic activity
9 L, X2 Y% \1 d  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。caused by the subduction of the Pacific Plate beneath the Eurasian Plate. Subduction can also generate some of the largest earthquakes
. l( v+ @+ w, Q) m- |8 ^0 Gtvboxnow.comon Earth, including a magnitude 9 here in 1952 which was followed a week later by Krenitzyn’s only historical eruption. This image was
6 h  L/ l4 c: bcaptured by the Advanced Land Imager (ALI) on NASA’s Earth Observing-1 (EO-1) satellite on June 10, 2009.
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7 b7 V1 ]" }; e1 L0 Btvboxnow.comGalapagos Islands, Pacific Oceantvb now,tvbnow,bttvb7 M& c5 g1 q' ^
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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
8 }' P1 R  w" ~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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, E7 Y$ |3 s' f7 |* NThe largest island, Isla Isabela, is made of the lava flows of six gently sloped shield volcanoes. The northernmost of Isabela’s volcanoes,
8 E' z, w" M: Z. y  f0 V) UTVBNOW 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。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 公仔箱論壇, N8 V% m9 G6 ~, |" B* v$ a
7 satellite in 2001.tvboxnow.com: F& ~9 R! N! k8 n( p

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' e- v" ~. e  ^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 Oceantvb now,tvbnow,bttvb, C5 b% \" N# U8 [
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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,
6 W( C! t( O2 ^2 H0 Ttvb now,tvbnow,bttvbthe average elevation of which is a little more than 3 feet. It is probably the lowest country in the world.tvboxnow.com0 C/ R2 T; }4 s; K. g# d

! [2 U7 |  d9 @9 T1 x, eTVBNOW 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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Henrietta Island, East Siberian Sea
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. l1 I, Z; G/ dThis 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
0 a  G; N* M6 Z9 }0 S2 kyounger sedimentary rocks. This image was taken by the Advanced Land Imager (ALI) on NASA’s Earth Observing-1 satellite on April 30, 2009.( O$ Q) t! f% s4 D8 K! ^% P

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" d% L( Z; J+ htvboxnow.comEleuthera Island, Bahamastvboxnow.com  P3 T2 B9 ]9 E3 V* @, Z% O$ ]4 m1 U& H
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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
- e+ V) ?, u- _" r* O1 eof coral reefs and deposited in dunes by ocean currents.& i1 ?8 A/ h/ y/ s9 X

  i. Y* i- r) a1 s  Q$ SThis 2002 image was captured by astronauts aboard the International Space Station. Located in the middle of the Bahamas, Eleuthra Island
! r- S; Q, y9 D  tTVBNOW 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。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。' k( p  q* S1 z: R" b
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. _5 h( }, C) e$ m8 ctvb now,tvbnow,bttvb公仔箱論壇  Z. j( V9 |3 H! H  ?$ ~& @) x
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 tvboxnow.com# J3 \' `6 B* B/ ?
40,000 years. This image, captured by The Advanced Spaceborne Thermal Emission and Reflection Radiometer on NASA ’s Terra satellite
! P- l  n- }+ ^6 C  G. G1 n0 otvboxnow.comin April 2006, shows a steam or ash plume at the tail end of several months of explosive eruptions.
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( U" J5 w; M7 ^0 h" l; e公仔箱論壇Lesser 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
+ m: N  ?& S# Z+ P; L; m% U3 itvboxnow.comthe 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 - @2 O/ f3 w4 `2 K6 X  C) y
of two tectonic plates. This image was captured by the Advanced Spaceborne Thermal Emission and Reflection Radiometer on NASA’s Terra satellite in 2000.' P4 j/ n* a' n8 h' Z

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Hawaiian Islands, Pacific Ocean
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, n. c' x: D3 S0 g+ A. }tvboxnow.comThe 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+ Y: _2 g$ r$ I+ 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 tvboxnow.com  x% Y* K7 x9 }6 H% I. ]$ ~
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 rest
9 ~" O5 x& |2 [: ^& _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 tvboxnow.com1 u# }/ {9 |8 H4 X/ w$ ?
MODIS instrument aboard NASA’s Terra satellite.Hawaiian Islands, Pacific Ocean
7 n" m; Q5 v4 Q6 ?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! t' w2 z% uThe Hawaiian Islands were formed by an upwelling plume of hot mantle material, called a hotspot. As the Pacific plate moved over the hotspot,
) N7 c) [- x) M" {/ Iit 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 公仔箱論壇' R: b; N: N" M/ h
the crust beneath them cooled.tvb now,tvbnow,bttvb1 e# J" }' {+ _# X3 D1 n% a% ?

4 d4 B4 g; {$ j/ F! R! U4 ]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 公仔箱論壇# K: C8 z( {* D6 B1 c
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* G2 Q# l. F& v7 r公仔箱論壇by the MODIS instrument aboard NASA’s Terra satellite.
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% \/ [, c7 l4 K) `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。
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* C; g/ G8 W4 `% }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。Alejandro Selkirk Island, South Pacific Ocean
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9 T# g* N8 M) M/ ytvb now,tvbnow,bttvbThis 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 tvboxnow.com7 E( Q- E! n; D- F" X+ M
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 tvboxnow.com4 x3 Z9 T( J$ R+ y* d
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
( F( ~/ u+ C  ~% U& v3 T! e  Dtvboxnow.comby the Landsat 7 satellite in 1999.tvb now,tvbnow,bttvb5 H/ G2 y/ N2 z7 T; j! A$ B
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Millennium 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。4 k: C$ G; c  w  {; v, \* h, }) v2 ~. }
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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
! B5 Y; t0 T" K8 I: K" k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 & w- f2 o3 u+ v; U3 S2 T
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 , E/ q, F* r0 |( T  {8 h& j' G
aboard the International Space Station on July 1, 2009.


作者: k23bb    時間: 2009-12-23 01:06 AM

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