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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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) u" ?/ G, S1 {+ ltvb now,tvbnow,bttvbIslands 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。) E, y- H" R# J* J
from its sandy beaches, or a volcanic island from its towering peaks is wonderful, experiencing them from above can be inspiring as well.5.39.217.77:8898) w  b' C; o1 _2 Y
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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.
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7 f, u8 G0 ?+ J. n7 C+ D/ ]+ eAtafu Atoll, Tokelau, Pacific Ocean
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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 + I  j1 F7 H* O" h  l. C! n
miles wide and is the smallest of three atolls in the Tokelau Islands, a New Zealand territory.
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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
% X/ I* v$ f6 A) l' m4 h! |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.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 x) ~* _* k$ M! M2 \' x. E
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) H) ]1 B5 c0 ?. Z公仔箱論壇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 ^( a. H8 U4 \5 P# A7 L+ h
Onekotan Island, Russia
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: r9 C- t0 T  K6 |$ T3 W* ztvb now,tvbnow,bttvbAn 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
% o2 A1 r' y! Y6 L6 S) ca caldera that subsequently filled with water. The island inside the caldera is known as Krenitzyn Peak, which is the highest point on the % J4 N) ?% S/ ?# x3 M6 l( y. L
island at around 4,300 feet.tvb now,tvbnow,bttvb1 T% Z; o; V) u0 z6 z

5 x5 ~/ O. ~! w0 }tvb now,tvbnow,bttvbOnekotan is in Russia’s Kuril Islands between Japan and the tip of the Kamchatka Peninsula. The islands were formed by volcanic activity
# h3 m  z0 s: c2 `0 z/ F! ktvb now,tvbnow,bttvbcaused by the subduction of the Pacific Plate beneath the Eurasian Plate. Subduction can also generate some of the largest earthquakes 4 y* O* g+ t9 [& w, {
on Earth, including a magnitude 9 here in 1952 which was followed a week later by Krenitzyn’s only historical eruption. This image was
; F) S0 Y1 n" ycaptured by the Advanced Land Imager (ALI) on NASA’s Earth Observing-1 (EO-1) satellite on June 10, 2009.
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! R" S4 D, k5 n* ~' L! B+ h; [2 [8 e# k公仔箱論壇2 F6 D" A! O8 s2 q% |

" I! C# ^) B6 R! h; QTVBNOW 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。Galapagos Islands, Pacific Oceantvb now,tvbnow,bttvb' p; V2 x9 E. o5 x; J

+ M) t& G" R0 Q% e' V) dThe Galapagos Islands are the tops of volcanoes on the sea floor off the coast of South America along the equator. The volcanic activity
( h  Z. O" `1 x/ e7 O& Mthat formed the islands is thought to be the result of a plume of hot mantle material rising from deep in the Earth’s interior.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。' w: j% s. X! o  N, d

4 J; ?( ^& K2 P+ s" X9 M5.39.217.77:8898The largest island, Isla Isabela, is made of the lava flows of six gently sloped shield volcanoes. The northernmost of Isabela’s volcanoes,
  `& x2 r3 f7 l/ s- N' Mtvb 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
8 ?: e: e, P/ f( Htvb now,tvbnow,bttvb7 satellite in 2001.tvb now,tvbnow,bttvb& w9 M9 m% j% Q7 p$ z

3 |) S' w! r3 e: q& Q3 o5 n* MTVBNOW 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。公仔箱論壇4 U0 k. e; D+ v  X2 R1 L8 k) j# ?

- O* ~; R- Y% _- ?$ ^Maldives, Indian Ocean+ ]/ _3 Q# F( r# E

# R% [* C4 q, j; {$ ^公仔箱論壇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, & H0 P1 w6 j7 }
the average elevation of which is a little more than 3 feet. It is probably the lowest country in the world.
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3 y8 @/ N* L( A7 Q3 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 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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7 ?$ c. T* @1 I4 {4 n; u! i* U: ?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 i) w# c  z4 J: _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。Henrietta Island, East Siberian Sea, w# K" p" U/ e. L

5 n" S: _5 L, o. z, W公仔箱論壇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 h) `6 H- X$ p( M+ r# ]6 u. Otvb 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.
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Eleuthera Island, Bahamas
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' l; v7 c5 u: `7 `The spectacular underwater formations to the west of Eleuthera Island are made of calcium carbonate sand that has been eroded off
5 N& v% y- i, M3 D公仔箱論壇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 IslandTVBNOW 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 S9 U. c2 V6 d4 A( j. J
is 110 miles long, and in places just over a mile wide. Around 8,000 people live there.
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# Z  p- p7 ?" X* DAugustine Volcano, Alaska
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" s% l* q: R( l& e+ G8 w: m公仔箱論壇The most active volcano in Alaska’s Aleutian arc, Augustine Volcano’s biggest historical eruption occurred in 1883. It has been erupting for tvb now,tvbnow,bttvb5 l+ r7 d; l$ u2 ^) |" j. G! j
40,000 years. This image, captured by The Advanced Spaceborne Thermal Emission and Reflection Radiometer on NASA ’s Terra satellite
* d: Q" K/ j/ E* D- I* K8 hin April 2006, shows a steam or ash plume at the tail end of several months of explosive eruptions.tvb now,tvbnow,bttvb  _  e& N4 s# u7 a* h% m

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8 S2 w' Z8 i+ G3 [  }  k  Ktvb now,tvbnow,bttvbLesser Sunda Islands, Indonesia
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5 Z' Z+ x# ~$ Y5 O2 X" {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 tvb now,tvbnow,bttvb/ t8 j& e; U) P  K" J, 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
3 M$ @) b; G1 Q+ P: @5 Z  lof two tectonic plates. This image was captured by the Advanced Spaceborne Thermal Emission and Reflection Radiometer on NASA’s Terra satellite in 2000.& s: v. z9 e( p0 r, T6 f* L0 G
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; }- f1 F2 c0 s* F% L  atvb now,tvbnow,bttvbHawaiian Islands, Pacific Ocean
$ F7 E3 B3 R+ c+ v9 D+ e/ T/ p4 o$ bTVBNOW 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- B, p% _( dtvb now,tvbnow,bttvbThe Hawaiian Islands were formed by an upwelling plume of hot mantle material, called a hotspot. As the Pacific plate moved over the hotspot, it
; U! y& K3 p+ h9 T# e5 R+ d9 q7 A, {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
) h5 O/ G( k& s. q) ?8 ccrust beneath them cooled.公仔箱論壇9 R7 a3 j' J6 F3 v2 a
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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
  y: L" Y* h0 l7 h% W6 K& bof the islands, which get older from right to left, are Maui, Kahoolawe, Lanai, Molokai, Oahu, Kauai and Niihau. This image was captured by the
) @% G* B% \; @, {- B& qtvb now,tvbnow,bttvbMODIS instrument aboard NASA’s Terra satellite.Hawaiian Islands, Pacific Ocean
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& p! |/ g, i" L- A: pThe Hawaiian Islands were formed by an upwelling plume of hot mantle material, called a hotspot. As the Pacific plate moved over the hotspot, 9 e$ D" d' ~5 ?' K
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。/ g: t& ?( G9 d
the crust beneath them cooled.
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9 v8 |" \) z5 `8 `  F/ @Today, the hotspot is causing active volcanism on the Big Island of Hawaii. Kilauea Volcano has been erupting continuously since 1983. The 5.39.217.77:8898" U* ^; ]. d$ l* h5 Q" P3 u
rest of the islands, which get older from right to left, are Maui, Kahoolawe, Lanai, Molokai, Oahu, Kauai and Niihau. This image was captured
9 ^4 I' `8 Q/ d5.39.217.77:8898by the MODIS instrument aboard NASA’s Terra satellite.tvb now,tvbnow,bttvb0 z5 l7 J$ L7 [  }
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7 e& [) S7 D2 ]/ S% \Alejandro Selkirk Island, South Pacific Ocean0 K. U2 q( X1 s1 z( k% p

: l* p6 |+ e1 Q, n! ~; W0 B" Q# L" rThis 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
2 }$ \6 C  Q8 O) b0 d/ ?$ Ttvb now,tvbnow,bttvbto 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
3 Q( f5 F$ C" B8 [. `% g5.39.217.77:8898pattern 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
! x3 J) v8 @' G8 Q4 ?! O公仔箱論壇by the Landsat 7 satellite in 1999.公仔箱論壇& ^5 n# x7 f3 @4 ]+ {) O
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5 u' R" u7 `! ^& G& _& Y3 [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。3 Q* T7 t/ V/ O9 J; A( l
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
. g6 a" o9 E8 f" |: J3 fcentral 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 5.39.217.77:8898. r- M& ~# e- j* j
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 公仔箱論壇% g+ V1 B) {1 N$ ?& ~6 w
aboard the International Space Station on July 1, 2009.


作者: k23bb    時間: 2009-12-23 01:06 AM

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