Eyewitness Companions: Weather by Steve Dorling

By Steve Dorling

Anxious concerning the warmth wave-could or not it's the results of worldwide warming? probably the most topical problems with our time is the topic of the latest Eyewitness spouse: Weather. All you want to find out about cloud styles, violent storms, their motives and repercussions are available during this one complete yet moveable quantity. This e-book will clarify the genuine technology in the back of the elements, from the way it works to how it’s altering.

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Tropical continental air forms over the land, moist air arrives from tropical and northern oceans, and cold, dry air approaches from Northern Canada. Air masses can be modified as they travel across the globe. As a maritime air mass passes over a mountain range, for example, much of its moisture will be lost as rain, creating a drier air mass. This creates a “rain shadow”—the side of the mountain that faces the oncoming, moist air mass is cooler and wetter, but the other side, over which the air mass passes once it has lost its moisture, is warmer and drier.

The result was a famous English victory. But for the inclement weather, the smaller army may well have been overrun. SHIPS WRECKED The Spanish Armada was battered by storms off the east coast of England. Of the 130 ships that left Spain, just 67 made it home. MIRED IN THE MUD This English painting commemorates the victory at Agincourt. On the right, longbowmen take aim at the French cavalry bogged down in mud. TRADE WINDS AND EMPIRE In the late 15th century, the Spanish monarchs Ferdinand and Isabella sponsored exploratory expeditions across the Atlantic in search of new trade routes to China.

Slightly darker patches on the island, with a lower albedo, can become warmer than other areas, generating cumulus clouds. As the island heats more quickly than the sea, a local sea breeze may set in as the cooler marine air flows onto the heated land. This flow can lead to a spine of cumulus cloud along a peninsula, where the sea breezes have converged along the land axis and driven the air upward to make the cloud line. THE ALBEDO EFFECT If a surface is dull (has a low albedo), most of the solar radiation falling on it will act to warm it up.

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