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/ R& g# _8 q6 o9 L' ~5.39.217.76Islands are some of the most beautiful, peaceful, violent, desolate and unique places on Earth. While experiencing a tropical island 8 H% n$ b$ q9 S( u4 u
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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- X8 l, Z, P! t7 \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。We’ve collected images taken by astronauts and satellites from space of some of the most interesting islands on the planet.tvb now,tvbnow,bttvb) L+ T# Z1 ?: T4 B9 h
|4 A8 B5 G. n* wAtafu 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 公仔箱論壇6 p5 p$ L3 k2 {+ T# ^
miles wide and is the smallest of three atolls in the Tokelau Islands, a New Zealand territory.
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# n/ z& X; Q; z yAtafu is made up of coral reefs that surrounded the flanks of a volcano that has since become inactive and submerged. Like many tropical tvb now,tvbnow,bttvb, W3 t. L: B- x
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.
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Onekotan Island, Russia! g; w5 }0 F& I- f9 o
+ B* Y. t, B! c; G4 U2 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 5.39.217.763 R! K# r+ ^! t& R
a caldera that subsequently filled with water. The island inside the caldera is known as Krenitzyn Peak, which is the highest point on the 公仔箱論壇; |" R% I) k) X" z
island at around 4,300 feet.tvb now,tvbnow,bttvb) z0 H ?1 d0 Q/ G
, g2 Q2 d+ h! ]* B- ^4 KTVBNOW 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。Onekotan 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7 L$ `6 X& F* I; Y1 p! G1 u
caused by the subduction of the Pacific Plate beneath the Eurasian Plate. Subduction can also generate some of the largest earthquakes 5.39.217.76. }3 c5 S, c! m% r
on Earth, including a magnitude 9 here in 1952 which was followed a week later by Krenitzyn’s only historical eruption. This image was
8 o; X" C; j. g1 Z4 C5.39.217.76captured by the Advanced Land Imager (ALI) on NASA’s Earth Observing-1 (EO-1) satellite on June 10, 2009.5 \, q9 M& Z% e, ~
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( |3 z& t- t9 A: X- D5.39.217.76Galapagos Islands, Pacific Ocean5.39.217.76. i6 d0 C& a z$ u; |
9 g Z$ c( S) l! e2 Z) ]3 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。The Galapagos Islands are the tops of volcanoes on the sea floor off the coast of South America along the equator. The volcanic activity ; ]$ e9 k% @& L& ]9 T7 ~
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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' O6 k, S1 p. t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, 5.39.217.76) w- T( ]( j- p4 l+ T
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。5 b% Q9 a3 i4 o8 c, `0 [4 s' ]
7 satellite in 2001.
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, V1 ~" }3 n+ }, C1 D$ x! KTVBNOW 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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Maldives, 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, 公仔箱論壇9 C$ I3 E8 U5 H( K
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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This image of the North and South Malosmadulu Atolls was taken in 2002 by the ASTER instrument aboard NASA’s Terra satellite.
6 E2 G4 H; N6 ^% L2 m7 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。
2 S$ l% b) }4 gTVBNOW 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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Henrietta Island, East Siberian Sea
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, C* `9 c) w9 u7 R' S5 c# rThis 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
) Y, a9 n a+ E. C6 vyounger 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, Bahamastvb now,tvbnow,bttvb7 O9 q1 G8 S" P& U- h
& J4 Y+ o$ y4 P( _$ A8 Z公仔箱論壇The spectacular underwater formations to the west of Eleuthera Island are made of calcium carbonate sand that has been eroded off
5 P2 U6 g R$ M4 @: O# b: Pof 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
% F& a; } |+ e+ O8 d* ?公仔箱論壇is 110 miles long, and in places just over a mile wide. Around 8,000 people live there.6 ~( {7 T' C6 ~8 a/ N% V0 ^3 L# u
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! _: P, ]+ `% {tvb now,tvbnow,bttvbAugustine Volcano, Alaska
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/ P3 O3 F! F, T Q$ C+ _The most active volcano in Alaska’s Aleutian arc, Augustine Volcano’s biggest historical eruption occurred in 1883. It has been erupting for 3 o |) d7 K& Y# y5 \% O
40,000 years. This image, captured by The Advanced Spaceborne Thermal Emission and Reflection Radiometer on NASA ’s Terra satellite
8 q6 F" F' ?! ~; x x" ~* Y2 Z1 v公仔箱論壇in April 2006, shows a steam or ash plume at the tail end of several months of explosive eruptions.
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" D$ {! W* Z. C* ~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。 tvb now,tvbnow,bttvb; K- W5 U5 y% G$ ]7 [3 F
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Lesser Sunda Islands, IndonesiaTVBNOW 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, J3 m. ^2 a: c% G
o7 ]7 `. I4 _$ ~/ M/ `3 z" Ytvb now,tvbnow,bttvbThe 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 ?+ l7 F5 k. S' U% lthe 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 5.39.217.761 e! V+ u) N: l7 d8 X- n- f' b% Z
of two tectonic plates. This image was captured by the Advanced Spaceborne Thermal Emission and Reflection Radiometer on NASA’s Terra satellite in 2000.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。; h* { K$ S( d8 e0 d0 H& c
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B1 \3 d5 ^0 b/ @7 g8 i& c. ZHawaiian Islands, Pacific Ocean
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3 `, `) K6 Y) C4 q. @tvb 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 5.39.217.761 ] j' p' T0 _& C- d
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 2 Q" v" D2 ], L6 m" m4 R$ o6 o
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
! D; [8 |9 ^/ {( T( R( K( X$ j/ _8 ^5.39.217.76of the islands, which get older from right to left, are Maui, Kahoolawe, Lanai, Molokai, Oahu, Kauai and Niihau. This image was captured by the tvb now,tvbnow,bttvb8 c6 G$ i( b( D) \: G6 ^/ @
MODIS instrument aboard NASA’s Terra satellite.Hawaiian Islands, Pacific Ocean公仔箱論壇( A) P: K+ l0 g+ G' J
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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, 公仔箱論壇9 J. A( ~* _7 W# Y3 D& A( u
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 + Z- W! U" j4 `! J( m; z- b6 {
the 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 公仔箱論壇" I8 S5 k7 M+ Q3 ?
rest of the islands, which get older from right to left, are Maui, Kahoolawe, Lanai, Molokai, Oahu, Kauai and Niihau. This image was captured
. B/ X2 h& o" p3 s: y8 D7 E( s* m/ R9 Iby the MODIS instrument aboard NASA’s Terra satellite.
6 Z7 r! \: T3 \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。公仔箱論壇) e6 M; `) i( ~- A
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- f C6 N! p1 m6 K8 H ^5 d' f7 I& n5 XAlejandro Selkirk Island, South Pacific Ocean
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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/ O5 @5 t Q( R7 N
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
' C) g' A" |8 G8 ]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 tvb now,tvbnow,bttvb R. n9 \/ Z6 J. R1 X4 T
by the Landsat 7 satellite in 1999.
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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。) E- H: m: h! M5 F3 x9 \
5 y0 U7 _1 t9 u6 X$ z' G公仔箱論壇Also known as Caroline Island, Millennium Island is made of coral reefs that grew around a volcano, which is now underwater, leaving behind a 5.39.217.76) K- K R3 L, P+ n& i
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
( s# R @$ e# o3 y* {# M5 N' @) R: u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 公仔箱論壇; @3 V8 ^3 U& c
aboard the International Space Station on July 1, 2009.
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發表於 2009-12-22 09:10 AM
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