Haze and fog add a bluishness. The dark blue edge of the spectrogram rises. All these distortions taken into consideration, the surface type is still recognizable,... ... but the analysis of spectrograms should be done by computers. They will do it accurately and fast. The data obtained is used for making geological maps more precise. Not only geological surveys can be done in such a way,... ... the slightest changes in the color of vegetation are noticeable from the orbit. ... Different kinds of forests can be recognized by their spectrums. A mixed forest, for instance, gives a spectrogram different from that of a coniferous forest. Various trees are especially easy to recognize in autumn as they yellow By the color of seeded areas, it is possible to check how cultures mature, ... and forecast harvest on a continental scale. The planet lives and Man is its zealous master. He must not only know the Planet's resources but also monitor all the processes taking place upon it. Every year glaciers thawin the mountains. From space it is possible to monitor the scope and rate ... ...of this process. It determines flow of mountain rivers ... ... and moistness of soils in the valleys. In spring, snow melts on the plains. But every year is different. One should knowbeforehand when ice on rivers will break up and how much runoff they will carry; ... whether lowlands are going to be flooded. All of this can be forecast from satellites. Water may also cause harm to people. In some places it is a powerful cause of soil erosion. Ravines are cut reducing arable land. In other places salt marshes are formed. Only now has it become possible to take into account all these calamities on a global scale.. In the future, orbiting space station personnel will inform us of the state of mountain pastures,... ...and recommend better pastures to move on to. ... They will also point out lands suffering from draughts,... ... and warn us about impending sand storms. Cosmonauts Nilolayev and sevastianov said ... ...how conspicuous economically disastrous forest fires are when seen from space. Unfortunately, besides these natural calamities, others may too be seen from space. ...And it is people, masters of the Planet, who are to blame. Very often, man's presence on the Planet reveals itself unfavorably. This photo demonstrates the only sign of civilization on Earth ... ... a trail of smoke spreading for tens of kilometers and polluting the atmosphere. These oil slicks have been left by ships in the ocean. They extend for hundreds of kilometers. From the outer space you can see a catastrophic reduction of the earth's overall vegetation. The precious verdure is squeezed out by industrial and residential buildings. In the picture you can see tens of thousands of square kilometers of African ... savannah burnt by men. It was men; hunters driving wild animals to bay with fire. Destruction of forests not only steals oxygen from the atmosphere but upsets nature's delicate balance. One such manifestation is the encroachment of deserts. Ordinary sand is mercilessly advancing ... and threatens to bury everything in it's path. A new science, cosmic geography, is emerging . With its help, people will register all natural resources of the planet,... ... and will use them rationally. ...They will be able to render natural calamities harmless and even use them to their own advantage. ... They will stop barbaric polluting of the environment. This will require the realization of projects across national boundaries. By common efforts, people will protect... ...and beautify our dear Earth. In this we should trust! ------------------------------ Читайте также: - текст Папа на английском - текст Живой на английском - текст Беги без оглядки на английском - текст ...И правосудие для всех на английском - текст Командир эскадрильи на английском |