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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 + q3 u% z+ \* v5 B7 ^# b2 _) v' H
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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4 w" u" ^4 A$ ^9 WTVBNOW 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.
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Atafu Atoll, Tokelau, Pacific Ocean- A! B. z/ c+ z" u: ~8 s; R

: ~2 k: Z5 T- m% ]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。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 0 X- g  ?3 m2 s' t8 I. g- {: \
miles 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。9 G, s9 w5 c4 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
8 c6 g# V) F7 N9 c$ L; R8 Catolls, Atafu is very low lying and vulnerable to sea-level rise. This photograph was taken by astronauts aboard the International Space Station in January.tvb now,tvbnow,bttvb( ]1 W, i  k/ x; f5 g, f  D

, q2 H2 m2 J/ Y. S' V) }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。9 J, \. c/ Z; Y; S# q% v
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Onekotan 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
" j$ M+ I. b% i3 @1 n公仔箱論壇a caldera that subsequently filled with water. The island inside the caldera is known as Krenitzyn Peak, which is the highest point on the
/ w2 k  C( z7 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。island at around 4,300 feet.
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1 O% H: S" h0 u& }, a# G' K5.39.217.76Onekotan is in Russia’s Kuril Islands between Japan and the tip of the Kamchatka Peninsula. The islands were formed by volcanic activity 8 e9 {3 J$ g0 t! a8 [1 u( M
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& P4 F/ D) q6 G2 @% 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 ; D2 s3 q+ I5 T7 k% p0 H: o5 P
captured by the Advanced Land Imager (ALI) on NASA’s Earth Observing-1 (EO-1) satellite on June 10, 2009.# j; G; L' G7 t+ o
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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 N$ a' u0 K- z( O6 z) k6 V7 @
Galapagos Islands, 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。0 L: X5 O" `4 u% X( o* Q

2 o" _; A9 |4 |1 |$ t" J0 Q" \公仔箱論壇The Galapagos Islands are the tops of volcanoes on the sea floor off the coast of South America along the equator. The volcanic activity
' D. C& r  C# K& \  x) F公仔箱論壇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, tvb now,tvbnow,bttvb' h' `( F2 U+ Q: _0 p+ Q
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
! O! w( F% x! \! m8 ^7 satellite in 2001.
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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,
/ }6 @9 v& ~" Q8 q% m: gthe 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.% ?  ?- M  G0 [' T. d

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Henrietta Island, East Siberian Seatvb now,tvbnow,bttvb* s4 m; p7 ~" @. T6 n8 l

1 n6 I0 a3 l6 [  b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 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。$ f! b' [$ e# }8 f$ g8 f( M
younger 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,bttvb3 B& g* Z& h9 o) P0 e
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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
9 C- U5 X1 ]9 T# D: |$ \of coral reefs and deposited in dunes by ocean currents.5.39.217.76: j5 _* G: g, U

* u0 B% ]6 i0 Qtvb now,tvbnow,bttvbThis 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8 v3 |/ _7 N* ?' ~
is 110 miles long, and in places just over a mile wide. Around 8,000 people live there.4 j' i. I' c9 M1 @1 A
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( }; L5 {5 ?# t: t% p/ m. ^2 c: m! i2 k公仔箱論壇Augustine Volcano, Alaska9 S& Z3 g. M2 [& m8 D" `

3 S) u0 s1 p8 l( e- c  e$ D% B6 EThe most active volcano in Alaska’s Aleutian arc, Augustine Volcano’s biggest historical eruption occurred in 1883. It has been erupting for
& z) `2 f! s# K0 B% 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。40,000 years. This image, captured by The Advanced Spaceborne Thermal Emission and Reflection Radiometer on NASA ’s Terra satellite
* w: b; x. r# O; @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。in April 2006, shows a steam or ash plume at the tail end of several months of explosive eruptions.
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+ z7 b0 ^. [3 @( I5 G: E7 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。公仔箱論壇" ~+ v$ ?, `& G6 d4 H5 V: ~
Lesser Sunda Islands, Indonesia5.39.217.768 s  N( |5 [: a# r. g
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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
: a4 \% s/ q7 u" V/ [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。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
/ k" W- D9 V4 U; O  I5.39.217.76of two tectonic plates. This image was captured by the Advanced Spaceborne Thermal Emission and Reflection Radiometer on NASA’s Terra satellite in 2000.tvb now,tvbnow,bttvb) ?7 n8 P2 N+ d& J) a( i! K
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Hawaiian Islands, Pacific Ocean
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* K9 z" t* R3 z( c5 w4 m( j2 p5.39.217.76The 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$ u: U9 E+ C* B/ \3 r" B/ n
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。/ I0 Z, t+ A3 E' `! K) O( j+ T
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。; ?. A4 q! N# G; @5 x0 g

* z8 J4 x& p9 m) `2 B9 Z5.39.217.76Today, the hotspot is causing active volcanism on the Big Island of Hawaii. Kilauea Volcano has been erupting continuously since 1983. The rest - g. m. z5 M- I. t. q1 [% X, q# a
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 5.39.217.76+ X& ]; T- p) l( O$ K& j0 f  d- }
MODIS instrument aboard NASA’s Terra satellite.Hawaiian Islands, 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。+ p6 g7 _- D# x7 T: m2 J

% K" O- O& e% Y' v% F3 I$ A: \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, + [2 f9 x. ]- L, u; Q0 g: [
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。# ~! T9 ]" b3 n% b+ o2 _
the 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。* C6 W# B5 G' k6 D/ |
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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
% Y  m5 Z# C' Urest of the islands, which get older from right to left, are Maui, Kahoolawe, Lanai, Molokai, Oahu, Kauai and Niihau. This image was captured
8 J3 t5 z4 N" H. v5 o7 Dby the MODIS instrument aboard NASA’s Terra satellite.公仔箱論壇, X0 o. q) U6 Y# q8 a: @( X
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5 T% \( I  p. d$ {9 ?) A/ l7 _: z" s5.39.217.76Alejandro Selkirk Island, South Pacific Ocean
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6 d+ t6 z4 g- g- Z  Y) F% 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。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( R6 ?  |3 Q& }- R5 y
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
% L  e% a# _7 X  ?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。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 / f3 O; D. u% B7 y' m2 S- D
by the Landsat 7 satellite in 1999.tvb now,tvbnow,bttvb' n; k! g% b' v: r, P5 U* _

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Millennium Island, Republic of Kiribati, South Pacific Ocean公仔箱論壇+ ?- x) n9 E; s) g4 e/ O

7 ^* D# J* S2 L( k/ g) s; }Also known as Caroline Island, Millennium Island is made of coral reefs that grew around a volcano, which is now underwater, leaving behind a
0 d1 x  @0 n0 z/ H5 c# D3 qcentral 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 5.39.217.76' e- {# n  v* o
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
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作者: k23bb    時間: 2009-12-23 01:06 AM

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