The Earth From the Air

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As for the photography itself, it goes without saying that it is absolutely superb but lots of other reviewers have already said that, so I won't dwell on it. My only wish is that the photos would also have been dated. I know that some of the photos are taken more than 15 years apart. The author may have thought that the actual years don't matter, but it would still have been nice to know. Our planet is surrounded by an invisible shell of air, called the atmosphere, held in place by the Earth’s gravitational field. It’s made up of a mixture of different gases.

Earth from the Air - Wikipedia

The free outdoor exhibition is a spectacular presentation of over 120 large-scale aerial photographs of breathtaking views of our planet taken by world-famous photographer Yann Arthus-Bertrand. Above this altitude lies the heterosphere, which includes the exosphere and most of the thermosphere. Here, the chemical composition varies with altitude. This is because the distance that particles can move without colliding with one another is large compared with the size of motions that cause mixing. This allows the gases to stratify by molecular weight, with the heavier ones, such as oxygen and nitrogen, present only near the bottom of the heterosphere. The upper part of the heterosphere is composed almost completely of hydrogen, the lightest element. [32]

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The Face of the Earth as seen from the Air: A study in the application of airplane photography to geography Air pressure actually decreases exponentially with altitude, dropping by half every 5.6km (18,000ft) or by a factor of 1/ e (0.368) every 7.64km (25,100ft), (this is called the scale height) -- for altitudes out to around 70km (43mi; 230,000ft). However, the atmosphere is more accurately modeled with a customized equation for each layer that takes gradients of temperature, molecular composition, solar radiation and gravity into account. At heights over 100km, an atmosphere may no longer be well mixed. Then each chemical species has its own scale height. Within the five principal layers above, which are largely determined by temperature, several secondary layers may be distinguished by other properties:

Earth from the Air - 365 New Days - Hardcover - AbeBooks The Earth from the Air - 365 New Days - Hardcover - AbeBooks

About 78% of the atmosphere is nitrogen gas, N2, which is unreactive and just sort of hangs around. At "Aerial-View.ORG" you get aerial images, bird's eye view, satellite images, maps view, and much more. The average atmospheric pressure at sea level is defined by the International Standard Atmosphere as 101325 pascals (760.00 Torr; 14.6959 psi; 760.00 mmHg). This is sometimes referred to as a unit of standard atmospheres (atm). Total atmospheric mass is 5.1480×10 18 kg (1.135×10 19 lb), [40] about 2.5% less than would be inferred from the average sea level pressure and Earth's area of 51007.2 megahectares, this portion being displaced by Earth's mountainous terrain. Atmospheric pressure is the total weight of the air above unit area at the point where the pressure is measured. Thus air pressure varies with location and weather. All living things on Earth, including humans, use oxygen from the atmosphere for respiration to stay alive.

Barry, R.G.; Chorley, R.J. (1971). Atmosphere, Weather and Climate. London: Menthuen & Co Ltd. p. 65. ISBN 9780416079401. The division of the atmosphere into layers mostly by reference to temperature is discussed above. Temperature decreases with altitude starting at sea level, but variations in this trend begin above 11km, where the temperature stabilizes over a large vertical distance through the rest of the troposphere. In the stratosphere, starting above about 20km, the temperature increases with height, due to heating within the ozone layer caused by the capture of significant ultraviolet radiation from the Sun by the dioxygen and ozone gas in this region. Still another region of increasing temperature with altitude occurs at very high altitudes, in the aptly-named thermosphere above 90km. Geometric altitude vs. temperature, pressure, density, and the speed of sound derived from the 1962 U.S. Standard Atmosphere.

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The Earth from the Air for Children: Children's Edition: Written by Yann Arthus-Bertrand, 2002 Edition, Publisher: Thames & HudsonYann Arthus-Bertrand was born in a renowned jewellers' family founded by Claude Arthus-Bertrand and Michel-Ange Marion. His sister Catherine is one of his closest collaborators. He's been interested in nature and wildlife from an early age. The constant re-arrangement of continents by plate tectonics influences the long-term evolution of the atmosphere by transferring carbon dioxide to and from large continental carbonate stores. Free oxygen did not exist in the atmosphere until about 2.4 billion years ago during the Great Oxygenation Event and its appearance is indicated by the end of the banded iron formations. creation of «Yann Arthus-Bertrand Photo », the official entity dedicated to his photographic work. It also aims to shed light on the part of his work never before revealed, a memoire of the time when photography was considered to be a tool for providing information rather than a true artistic medium. Born in 1946, Yann Arthus-Bertrand has always been fond of nature. It was in the late 70s, in Kenya, while studying with his wife Anne the every day life of a pride of lions that, that he truly became a photographer. He understood that he had to tell the facts through images rather than words. He also discovered the beauty of the world seen from above when he became a hot air balloon pilot and began experimenting with aerial photography.