| 查看: 602 | 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
07化学280分求调剂
已经有3人回复
-
考研化学308分求调剂
已经有8人回复
-
070300化学求调剂
已经有7人回复
-
生物学一志愿985，分数349求调剂
已经有9人回复
-
341求调剂(一志愿湖南大学070300)
已经有4人回复
-
336化工调剂
已经有5人回复
-
279分求调剂 一志愿211
已经有17人回复
-
291求调剂
已经有4人回复
-
328求调剂，英语六级551，有科研经历
已经有12人回复
-
一志愿上海交大生物与医药专硕324分，求调剂
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
