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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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* |* ], q  M9 X! G8 L) K! D+ }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。Islands are some of the most beautiful, peaceful, violent, desolate and unique places on Earth. While experiencing a tropical island tvboxnow.com" e2 t+ N( A. S/ f. d* L: G1 R
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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6 t2 B$ A8 ?0 x2 n# _9 \We’ve collected images taken by astronauts and satellites from space of some of the most interesting islands on the planet.tvb now,tvbnow,bttvb7 N% ^5 m# i" ^! A: P. w& _% \
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Atafu Atoll, Tokelau, Pacific Ocean
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+ R: a: `, }; _# ]" ^4 nAround 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 |& `( ~( M3 `$ u. U( e# c* }' ymiles wide and is the smallest of three atolls in the Tokelau Islands, a New Zealand territory./ F; m* C1 g# J
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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 1 X7 z, ~: {" D! V+ k
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.. D6 t9 K0 n+ v

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2 f0 W6 @: C/ k8 @1 u* q& I0 jtvb now,tvbnow,bttvbOnekotan Island, Russia
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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 tvb now,tvbnow,bttvb7 z1 t  C6 L0 C! K3 u; i% G8 Q
a caldera that subsequently filled with water. The island inside the caldera is known as Krenitzyn Peak, which is the highest point on the
1 d0 n2 l2 A3 W* PTVBNOW 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。island at around 4,300 feet.
7 Q5 L4 x* h' R. |( 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。
; I6 l7 C& V+ i& {6 etvboxnow.comOnekotan is in Russia’s Kuril Islands between Japan and the tip of the Kamchatka Peninsula. The islands were formed by volcanic activity 公仔箱論壇0 B  k" ^  R  g
caused by the subduction of the Pacific Plate beneath the Eurasian Plate. Subduction can also generate some of the largest earthquakes
' s$ ~( P5 F! G& Y! ]公仔箱論壇on Earth, including a magnitude 9 here in 1952 which was followed a week later by Krenitzyn’s only historical eruption. This image was & s! V  F2 |, `' z2 S
captured by the Advanced Land Imager (ALI) on NASA’s Earth Observing-1 (EO-1) satellite on June 10, 2009.公仔箱論壇' k! q3 N" k! x6 M

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5 X, W, L2 x/ {0 E" H  p$ d公仔箱論壇Galapagos Islands, Pacific Oceantvboxnow.com" B4 a- C( Q3 [
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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
/ a" c) p0 L. u  \( i3 sthat 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' l' Z$ z0 A5 Z9 J7 Y9 m

3 X( I) X- `/ {公仔箱論壇The largest island, Isla Isabela, is made of the lava flows of six gently sloped shield volcanoes. The northernmost of Isabela’s volcanoes,   J5 A9 D" p/ W% r4 L1 P2 i# U
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。( @! h7 k  ?% T' C* v
7 satellite in 2001.
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- D- Q4 W- F5 nMaldives, Indian Oceantvb now,tvbnow,bttvb; \3 v2 E8 r* E' ~+ K# Q: h
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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,
1 S1 y" m0 m' z0 \* uthe average elevation of which is a little more than 3 feet. It is probably the lowest country in the world.
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This image of the North and South Malosmadulu Atolls was taken in 2002 by the ASTER instrument aboard NASA’s Terra satellite.tvboxnow.com1 x0 ?" ^7 G5 ]- C7 b0 `& x
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Henrietta Island, East Siberian Sea
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( V/ n2 g. V5 z8 a+ m/ n/ `tvb now,tvbnow,bttvbThis 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 tvb now,tvbnow,bttvb$ ]/ J! e0 q$ o6 E# g4 m7 R
younger sedimentary rocks. This image was taken by the Advanced Land Imager (ALI) on NASA’s Earth Observing-1 satellite on April 30, 2009.; L+ D5 I* l' h  ^' Q; n, j3 }
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Eleuthera Island, Bahamas
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5 G, B6 T. X4 ~tvb now,tvbnow,bttvbThe spectacular underwater formations to the west of Eleuthera Island are made of calcium carbonate sand that has been eroded off
. o' Q- B. y- ^" j+ Btvb now,tvbnow,bttvbof coral reefs and deposited in dunes by ocean currents.( P4 ~' I- Z2 H$ u4 i
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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7 S+ B7 L- S9 U
is 110 miles long, and in places just over a mile wide. Around 8,000 people live there.
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Augustine Volcano, Alaska) a, H3 g3 ?& G+ y
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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 2 i! T+ A, r* z1 D
40,000 years. This image, captured by The Advanced Spaceborne Thermal Emission and Reflection Radiometer on NASA ’s Terra satellite
8 O' n, K9 G* |9 f- f公仔箱論壇in April 2006, shows a steam or ash plume at the tail end of several months of explosive eruptions.tvboxnow.com0 l0 K+ s7 W) p$ b4 o' ?  A
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Lesser Sunda Islands, Indonesiatvb now,tvbnow,bttvb9 j% n# P# T9 d- A" [3 K2 \
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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
2 i/ q; w  y6 [% i. ^* }& rthe 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 tvboxnow.com8 j$ S  m( i9 N% R2 q7 U
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 Ocean0 C+ c9 p& Y. D4 k) W. ?4 g

$ G# L+ x# x4 j( B) ptvb 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
* I/ Q- X8 J3 H4 _: Eformed 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
' a, ]1 {2 A& N% f8 N, W公仔箱論壇crust beneath them cooled.tvb now,tvbnow,bttvb# F. _3 D& G6 L9 W& f8 Z1 k

- S: W+ A; f$ ~3 j  i1 C* ?. vToday, the hotspot is causing active volcanism on the Big Island of Hawaii. Kilauea Volcano has been erupting continuously since 1983. The rest
4 X8 E% ~3 K+ _. t* ktvb 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 tvboxnow.com8 {# k+ e8 q/ `( B$ o7 d1 o
MODIS instrument aboard NASA’s Terra satellite.Hawaiian Islands, Pacific Ocean. o# ?- x- L  f4 B) F: Y! d6 p) b
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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, tvboxnow.com2 V" q$ [0 L1 P- r
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
+ H  b7 `+ `+ x, D! L3 A0 Wthe crust beneath them cooled.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 V! R4 U! _7 r  X' i5 r

2 ]* A3 V( R3 `5 S( d& g1 m' btvb now,tvbnow,bttvbToday, the hotspot is causing active volcanism on the Big Island of Hawaii. Kilauea Volcano has been erupting continuously since 1983. The / @1 p( |2 Z/ z, G
rest of the islands, which get older from right to left, are Maui, Kahoolawe, Lanai, Molokai, Oahu, Kauai and Niihau. This image was captured
( A& _$ c8 ~" L4 C9 `" HTVBNOW 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.tvb now,tvbnow,bttvb3 q! I. Z9 F# L: ]+ e( T) s6 R

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! y- }1 y9 O8 O3 R( H# QAlejandro Selkirk Island, South Pacific Ocean
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! R/ @+ |* N. b1 K7 n3 ^9 {$ u1 {' Itvb 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
" F, i( {5 k4 T% r9 ~( oto 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
( W4 y' Y! s5 l) ^% 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。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
$ g* |7 R8 r+ L1 T' r3 h! f" ntvboxnow.comby the Landsat 7 satellite in 1999.公仔箱論壇5 _8 {  ^- B8 P9 I) V% A

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Millennium Island, Republic of Kiribati, South Pacific Ocean6 f7 Y  T( P! j/ z

# t8 R' P$ A$ D9 V% qAlso known as Caroline Island, Millennium Island is made of coral reefs that grew around a volcano, which is now underwater, leaving behind a
9 y6 h8 z: J8 [& l1 r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
& i# F# K' h# |6 ltvboxnow.comfor guano, though today there are no people and it is among the world’s most pristine tropical islands. This image was taken by astronauts tvboxnow.com9 e* V# s, v9 s7 L' i- G' 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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