Studies have shown that Jupiter Great Red Spot is narrowing (Figure).

<P> Keywords: Jupiter's Great Red Spot universe </ P> <P> <CENTER> </ CENTER> <P> </ P> <P align=center> Jupiter's red spot in the narrow </ P> <P align = center .> </ P> <P> World Scientific reports [tech.]: According to NASA's Space Network reported on Earth, hurricanes can form and disappear within a few days. .However, in Jupiter, the storm may have been for several years or even centuries. .Jupiter's "Great Red Spot," has lasted at least 300 years, it is a huge anti-cyclonic storm, twice the diameter of the Earth. .But now all the storm on Jupiter, the source - the "Great Red Spot" is slowly shrinking. .</ P> <P> cloud over the past decade were found, along with Jupiter's climate change, this huge oval-shaped storm is slowly getting smaller. .However, this observation to be very complicated, because Jupiter is a gas planet, and it is wrapped inside a colorful clouds, it is difficult to the edge of the storm can be seen near the surface of the planet's cloud distinction .open. .Can the giant storm near a storm themselves, by contrast, near the Great Red Spot can also eat up the clouds. .</ P> <P> However, the scientists collected from 1996 to 2006, the wind speed data, and analysis of wind speed and direction, has been able to carry out this storm more accurate assessment. .Keira Air Asia race of California, Berkeley, Davis and Phil Marcus, Mike Wong and Amy Passy del implemented together with the study. .Davis said: "The wind speed data show that during this time the diameter of the Great Red Spot has been reduced about 15 %。"</ P> <P align=left> is not already a dying old age </ P> <P> David .Adams said the study results not only with other studies on the cloud reached the same conclusion, and it becomes more relevant conclusions to make a foothold, more convincing. .He said: "As the clouds and the erythema around with other phenomena in the atmosphere can also have a strong impact, so the wind speed measurement is very cumbersome." Davis said, so far scientists are still not clear why this storm will be reduced ., but continued to 300 years later, the Great Red Spot is not going away anytime soon. .Now it's still over 300 mph winds (482 km). .Davis told the NASA Space Network, said: "We find that the Great Red Spot is slowly narrowing, but it did not slow down the speed." He explained, whether it is combined it with the surrounding air, eating the smaller storm, .or the energy of radiation into space, the storm's energy flow balance has been in balance. .</ P> <P> Davis said: "Although we do not know all the energy sources, or loss of energy in this way erythema, but these can be for some time to break the erythema in the energy flow balance, and maybe that is constantly erythema .narrowing of the reasons - less energy input, and the storm will gradually get smaller. "Davis and his colleagues have been using the" Cassini "spacecraft images taken in 2000 (for the synthesis of the most clear so far .The "wind map"), shows Jupiter within 70 degrees north and south-dimensional wind speed situation. .General Jupiter's winds of up to 250 miles per hour. .Davis research team members in November last year in the American Physical Society Fluid Dynamics Division meeting of the study described in detail. .</ P> <P> climate change </ P> <P> this is still the main purpose of the study conducted a comprehensive understanding of the complexity of climate change on Jupiter. .Davis said that between 2005 and 2007, Jupiter has witnessed dramatic changes, "this time, the entire planet's weather patterns and colors have changed a lot." In 2006 a series of changes occur, leading to " .Little Red Spot, "produced, other scientists said the small size and speed of the storm will eventually be more than" the Great Red Spot. " .</ P> <P> physicist at Johns Hopkins University in May last year, Andrew Chan, said: "From the maximum wind speed in terms of a small red spot in 2007 wind speed measurement results and measurement of the Great Red Spot in 2000 .The results are almost the same speed. "Great Red Spot may not disappear, but its position may be subject to challenge. .Pasadena, Calif. NASA's Jet Propulsion Laboratory planetary scientist Glen Gordon said: "The Great Red Spot on Jupiter may not have been the largest and strongest storms." </ P> <P> occur .circumstances </ P> <P> University of California, Berkeley mechanical engineer Marcus predicted that in 2004, 2006, Jupiter's southern hemisphere climate changes will break the rapids of the balance, leading to a new storm generated. .Davis explained: "We think this changes the cyclone may be transferred with the heat on Jupiter about. When the cyclone on a lot of Jupiter, they will transfer heat from the equator to the poles and the equator from the poles to the more efficient transfer. But .When the cyclone on the planet less, they transfer heat efficiency may be lower. "</ P> <P> 1998 to 2000, the three large white oval-shaped storms together. .This may be the climate on Jupiter had a tremendous impact. .Davis said: "Jupiter's south pole is likely to become more cold, and near the equator become warmer. Recent changes may be the last time climate change on Jupiter, an adjustment or a compensation. Eventually we might see .New cyclone formation, they again re-distribution of Jupiter's heat. We hope to continue to receive Jupiter's wind field map, so that we can in the coming years or decades to continue to monitor climate change on Jupiter. "</ P> < ./ p>.