f98u2le2 - Lesson II Satellite Images from the Space...

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Lesson II. Satellite Images from the Space Shuttle In this program, students will learn how man-made satellites are used to provide images from space. These uses include: cartography, water turbulence, and tide reporting and tracking. Key words: AVHRR, Atmosphere, False Color Image, NASA, JPL, and Shuttle Image Radar General Discussion The most obvious ocean boundary is between land and sea. From whatever vantage point – land, sea, air or space – coastlines encompass such a variety of forms that they have always intrigued the viewer. From space, the shores of the ocean offer scenes and provide information not available to Earth-bound investigators. It is fortunate, therefore, that astronauts have taken the opportunity to acquire many photographs of the land-sea boundary. There are some 440,000 kilometers of coastline around the landmasses of the world. In 1980, the United Nations estimated that two-thirds of the world's population lived within a few kilometers of the sea. Though such a percentage may at first boggle the mind, it is probably a significant decrease from the percentage of coastal populations in all the preceding millennia of human history. With the growth of transportation, communications, engineering, and modern agricultural practices, many inland areas can support habitation that was impossible only a few decades ago. Consider, furthermore, the fact that tens of thousands of kilometers of coastline are not habitable, such as those in Antarctica, Tierra del Fuego, Greenland and the Arctic coasts of Canada and Siberia. For most of human history, much of the population has crowded the world's coasts. There are an innumerable variety of shapes of coasts. They have vistas and forms that have stirred the emotions and piqued the interest of humans from the earliest times: the stately
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White Cliffs of Dover; the awe- inspiring grandeur of the fjords of Norway, Chile, and New Zealand; the brilliant heights of the Cote d'Azur; the muddy marshes of the Mississippi, the Irawaddy and the Yangtse; the dunes of the Red Sea, Brazil, and the Diamond Coast of southwest Africa; and the coral sands of Tahiti, the Bahamas, Tarawa, Waikiki and Funafuti. About half of the world's coastline has cliffs. To those who live along the coastal plains of the Gulf of Mexico or Bangladesh, or beside the North Sea shores of Germany and the Netherlands, coastal cliffs may be difficult to imagine. On the other hand, the inhabitants of Scotland, Norway, Italy, New Zealand, and
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f98u2le2 - Lesson II Satellite Images from the Space...

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