| 查看: 587 | 回复: 4 | |||
mayingjiu木虫 (正式写手)
|
[交流]
【Share】Study shines new light on Sun's role in Earth's climate
|
|
By Matthew Knight for CNNOctober 7, 2010 -- Updated 1822 GMT (0222 HKT) New research published by UK and U.S. scientists challenges current ideas about the sun's influence on Earth's temperatures. London, England (CNN) -- A new study has shed light on the sun's impact on the Earth's climate, confounding current thinking about solar cycles and how they influence temperatures on Earth. Previously scientists had thought that radiation reaching the Earth rises and falls in line with the Sun's activity, which during the 11-year solar cycle goes though periods of low and high activity. But research by Imperial College, London and the University of Colorado in the U.S. examining solar radiation levels from 2004 to 2007 -- a period of declining solar activity -- revealed that levels of visible radiation reaching the Earth actually increased during the period. Using data collected by NASA's SORCE (SOlar Radiation and Climate Experiment) satellite, which launched in 2003, the scientists were able to scrutinize the full solar spectrum -- x-ray, ultraviolet (UV), visible (VR), near-infrared, and total solar radiation -- and compare it to earlier, less comprehensive data. Joanna Haigh, leader author of the study published in the journal Nature told CNN: "What the data has shown, rather unexpectedly, is that the decline in ultra-violet radiation is much larger than anticipated. But more surprisingly the visible radiation actually increased as solar activity was declining." |
回复此楼» 猜你喜欢
过年走亲戚时感受到了所开私家车的鄙视链
已经有10人回复
-
今年春晚有几个节目很不错，点赞！
已经有12人回复
-
情人节自我反思：在爱情中有过遗憾吗？
已经有13人回复
-
体制内长辈说体制内绝大部分一辈子在底层，如同你们一样大部分普通教师忙且收入低
已经有12人回复
-
基金正文30页指的是报告正文还是整个申请书
已经有5人回复
★
小木虫(沙发+1，金币+0.5):恭喜抢个沙发，再给个红包
小木虫(沙发+1，金币+0.5):恭喜抢个沙发，再给个红包
 |
2楼2010-10-08 07:31:24
去日留痕
至尊木虫 (文坛精英)
小小木虫虫
- 应助: 0 (幼儿园)
- 贵宾: 0.123
- 金币: 10654.7
- 散金: 1105
- 红花: 12
- 沙发: 307
- 帖子: 10725
- 在线: 328.7小时
- 虫号: 531565
- 注册: 2008-03-23
- 性别: GG
- 专业: 应用高分子化学与物理
3楼2010-10-08 07:31:41
sgh_119
至尊木虫 (职业作家)
- ESEPI: 1
- 应助: 0 (幼儿园)
- 贵宾: 0.045
- 金币: 15120.1
- 红花: 13
- 沙发: 59
- 帖子: 4989
- 在线: 648.4小时
- 虫号: 614182
- 注册: 2008-09-27
- 性别: GG
- 专业: 绿色有机化学
4楼2010-10-08 08:46:57
三更雨~
木虫 (文坛精英)
- ESEPI: 42
- 应助: 0 (幼儿园)
- 贵宾: 0.493
- 金币: 3701.9
- 散金: 4830
- 红花: 31
- 沙发: 69
- 帖子: 11421
- 在线: 1091.2小时
- 虫号: 863892
- 注册: 2009-10-06
- 性别: MM
- 专业: 光谱分析
5楼2010-10-08 08:53:36