Solar Wind Energy Tower (SWET) is currently working hard to complete the details of their permanent financing. When completed, they will have a break ground date as well as the date of power delivery. With this, power agreements can be signed for the delivery of power to the grid. Already, other nations see the value of this technology and are just now beginning to line up to purchase the licensing agreements from SWET! How nice to be in at the beginning of something that is going global.
From: Encyclopædia Britannica, Inc.
Updraft and downdraft, in meteorology, upward-moving and downward-moving air currents, respectively, that are due to several causes. Local daytime heating of the ground causes surface air to become much warmer than the air above, and, because warmer air is less dense, it rises and is replaced by descending cooler air. The vertical ascending current, called a thermal, may reach an altitude of 3 km (2 miles) or more. The greater the radius of the thermal, the higher it is likely to ascend. Updrafts and downdrafts also occur as part of the turbulence that is created when air passes over topographic barriers such as mountains.
Strong updrafts and downdrafts occur in thunderstorms as well. Updrafts characterize a storm’s early development, during which warm air rises to the level where condensation begins and precipitation starts to develop. In a mature storm, updrafts are present alongside downdrafts caused by cooling and by falling precipitation. These downdrafts, originating at high levels, contain cold, dense air that spreads out at the ground as a cold air wedge. The sharp changes in wind direction associated with downdrafts near the ground are a threat to aircraft during landing and takeoff. Intense downdrafts are called downbursts or microbursts.
https://media1.britannica.com/eb-media/28/240...F68D0C.jpg
In arid regions, the rain commonly associated with microbursts often evaporates before the downdraft reaches the ground; the resulting dry microbursts produce no visible clue to their presence. Wet microbursts, typical of more humid areas, are generally accompanied by a visible rain shaft. Bursts can be detected by modern weather radar and by wind sensors on the ground. The mechanics of microburst phenomena are not yet completely understood. Their existence was first observed in 1974 by meteorologist T. Theodore Fujita, and since then they have been identified as the cause of several airline crashes.
From: Encyclopædia Britannica, Inc.
Updraft and downdraft, in meteorology, upward-moving and downward-moving air currents, respectively, that are due to several causes. Local daytime heating of the ground causes surface air to become much warmer than the air above, and, because warmer air is less dense, it rises and is replaced by descending cooler air. The vertical ascending current, called a thermal, may reach an altitude of 3 km (2 miles) or more. The greater the radius of the thermal, the higher it is likely to ascend. Updrafts and downdrafts also occur as part of the turbulence that is created when air passes over topographic barriers such as mountains.
Strong updrafts and downdrafts occur in thunderstorms as well. Updrafts characterize a storm’s early development, during which warm air rises to the level where condensation begins and precipitation starts to develop. In a mature storm, updrafts are present alongside downdrafts caused by cooling and by falling precipitation. These downdrafts, originating at high levels, contain cold, dense air that spreads out at the ground as a cold air wedge. The sharp changes in wind direction associated with downdrafts near the ground are a threat to aircraft during landing and takeoff. Intense downdrafts are called downbursts or microbursts.
https://media1.britannica.com/eb-media/28/240...F68D0C.jpg
In arid regions, the rain commonly associated with microbursts often evaporates before the downdraft reaches the ground; the resulting dry microbursts produce no visible clue to their presence. Wet microbursts, typical of more humid areas, are generally accompanied by a visible rain shaft. Bursts can be detected by modern weather radar and by wind sensors on the ground. The mechanics of microburst phenomena are not yet completely understood. Their existence was first observed in 1974 by meteorologist T. Theodore Fujita, and since then they have been identified as the cause of several airline crashes.
