| 查看: 1112 | 回复: 11 | |||
zyz1981至尊木虫 (文坛精英)
医学物理
|
[交流]
【Pure water】Flooding in Australia Result of La Nina
|
| Deadly floods in Australia and Brazil have proved devastating for both countries in recent weeks. And while Brazil's floods are being seen as a normal weather event, climatologists have determined a reason for the ones in Australia: a regular weather phenomenon called "la Nina". But there's a debate over whether global warming is playing a part in their intensity. |
回复此楼» 猜你喜欢
2027广东省杰青
已经有9人回复
-
朋友圈看到的
已经有5人回复
-
欢迎发来filecode的Mz6后的代码验证其规律
已经有110人回复
-
明天放榜？
已经有5人回复
-
时间戳变了，能看出什么问题？
已经有11人回复
-
重要消息，中午系统在维护
已经有10人回复
-
两姐妹，一个辛辛苦苦30岁工作当大学教师，另一个23岁就工作当开车教练
已经有7人回复
-
投稿咨询
已经有6人回复
-
时间戳又变了8-15
已经有26人回复
-
今天维护系统维护 祝所有人 高中
已经有9人回复
zyz1981
至尊木虫 (文坛精英)
医学物理
- ESEPI: 1
- 应助: 1 (幼儿园)
- 贵宾: 1.976
- 金币: 16789.1
- 散金: 305
- 红花: 50
- 沙发: 17
- 帖子: 19504
- 在线: 761.6小时
- 虫号: 828345
- 注册: 2009-08-15
- 性别: GG
- 专业: 肿瘤物理治疗
|
In Australia, weeks of flood waters in the northeast are receding and help is on the way. "Thursday morning, I woke up and I just couldnt go on and then everyone arrived," said a woman. Now - what could end up as the worst flooding in 100 years - has moved further south. Greg Holland is a climatologist with the U.S. National Center for Atmospheric Research. We found him attending to his vineyard in Australia, where he's in danger of losing his grapes because of mildew. He described the floods to us via Skype. "Literally walls of water five or 10 miles [8-16 km] wide and maybe 10 to15 feet [3-5 meters]- high, coming ripping down through places and you just have no chance when that type of water hits you," said Holland. "People are starting to call it an inland tsunami." Climatologists blame the Australian flooding on a weather system called "la Nina". La Nina is a natural, cyclical event that cools the waters of the Eastern Pacific ocean and warms them in the west, near Australia. The cycle lasts until the weather system called "el Nino" takes over and does the opposite. Holland says global warming does play a part in the extreme rainfall. "The intensity of it and the amount of rainfall has most definitely been contributed to by global warming," he said. But, that's not what others say. Rupa Kumar Kolli is the World Meteorological expert on El Nino and La Nina. He also spoke with us on Skype. "We do not have adequate evidence to suggest that global warming can lead to an increase or decrease in terms of intensity or frequence of el Nino or la Nina situations," he said. Tony Barnston is the lead forecaster at Columbia University's International Research Institute for Climate and Society. He says even if ocean temperatures warm overall, it's the range of difference between the eastern pacific and western pacific that brings on the systems. He does not expect any global warming effects for many years. "Changes are slower in the oceans, are much slower in terms of global warming than they are in the air over continents," said Barnston. As for Brazil, Barnston agrees with other climatologists who say Brazil's flooding is not related to la Nina. "It’s more of a random, smaller scale regional event," he said. Barnston says that's because southeastern Brazil is prone to below-normal rainfall during a typical la Nina - just the opposite of what's happening. Whatever the reason, climatologists expect the effects of this la Nina to continue for months, possibly even years. Not good news to those affected. |
2楼2011-01-20 00:05:58
0710811132
荣誉版主 (文学泰斗)
小木虫原管理员
- 应助: 0 (幼儿园)
- 贵宾: 1.944
- 金币: 20230
- 散金: 32758
- 红花: 380
- 沙发: 999
- 帖子: 80732
- 在线: 2802.2小时
- 虫号: 1047838
- 注册: 2010-06-24
- 性别: GG
- 专业: 老师不让说
3楼2011-01-20 00:09:51
 |
4楼2011-01-20 07:26:57
5楼2011-01-20 08:43:11
 |
6楼2011-01-20 09:06:35
7楼2011-01-20 09:07:46
|
yes |
8楼2011-01-20 09:09:49
 |
9楼2011-01-20 09:17:33
木兰辞
金虫 (文坛精英)
- ESEPI: 4
- 应助: 0 (幼儿园)
- 贵宾: 1.65
- 金币: 13392.5
- 散金: 11624
- 红花: 72
- 沙发: 110
- 帖子: 43544
- 在线: 1150小时
- 虫号: 856242
- 注册: 2009-09-25
- 性别: MM
- 专业: 人力资源开发与管理
- 管辖: 公务员考试
10楼2011-01-20 09:52:12
