男女羞羞视频在线观看,国产精品黄色免费,麻豆91在线视频,美女被羞羞免费软件下载,国产的一级片,亚洲熟色妇,天天操夜夜摸,一区二区三区在线电影
Make me your Homepage
left corner left corner
China Daily Website

Record low temperature recorded in Antarctica

Updated: 2013-12-11 16:59
( Agencies)

Record low temperature recorded in Antarctica

Antarctica is pictured in this undated image courtesy of NASA. Scientists found that a high ridge in the East Antarctic Plateau contains pockets of trapped air that dipped as low as minus 136 Fahrenheit (minus 93 degrees Celsius) on Aug 10, 2010, researchers said at the American Geophysical Union meeting in San Francisco on Dec 9, 2013. [Photo/Agencies]



SAN FRANCISCO - The Arctic air blasting the eastern United States is positively balmy compared to the record minus 136 degrees Fahrenheit (minus 93 degrees Celsius) temperature measured in Antarctica in August 2010, according to research released on Monday.

Scientists made the discovery while analyzing 32 years of global surface temperatures recorded by satellites.

They found that a high ridge in the East Antarctic Plateau contains pockets of trapped air that dipped as low as minus 136 Fahrenheit on August 10, 2010, researchers said at the American Geophysical Union meeting in San Francisco.

The previous record low was minus 128.6 F (minus 89.2 C), set in 1983 at the Russian Vostok Research Station in East Antarctica, said Ted Scambos, lead scientist at the National Snow and Ice Data Center in Boulder, Colorado.

"We had a suspicion this Antarctic ridge was likely to be extremely cold, and colder than Vostok because it's higher up the hill," Scambos said in a statement.

The temperatures are about 50 degrees F colder than anything recorded in Alaska or Siberia.

The research grew out of studies of snow dunes. Scientists noticed cracks in the snow and wondered if the top layer of snow was shrinking. That set them off on a hunt for temperature data.

The super-cold temperatures are due to air being caught and held for a while. If the skies are clear for a few days, the ground radiates remaining heat into space, creating a layer of super-chilled air above the snow.

"By causing the air to be stationary for extended periods, while continuing to radiate more heat away into space, you get the absolute lowest temperatures we're able to find," Scambos said.

 

 
...
...
主站蜘蛛池模板: 蓬安县| 芷江| 鹿泉市| 黔西县| 九寨沟县| 名山县| 松原市| 德保县| 宽城| 乌苏市| 德阳市| 永州市| 丰顺县| 义乌市| 胶州市| 麻城市| 惠州市| 清远市| 株洲县| 宁化县| 鹤山市| 平和县| 七台河市| 温宿县| 望谟县| 长治市| 岑巩县| 延津县| 布尔津县| 湾仔区| 焦作市| 新密市| 宜君县| 大化| 眉山市| 响水县| 汝南县| 永清县| 积石山| 贵港市| 榆树市| 泽库县| 濉溪县| 台前县| 宜宾县| 五峰| 弥渡县| 科尔| 南通市| 济宁市| 宁强县| 东方市| 乐至县| 诸城市| 衡山县| 深水埗区| 嘉黎县| 舒城县| 新闻| 闵行区| 五指山市| 大城县| 肃宁县| 定襄县| 渑池县| 新丰县| 阿合奇县| 贺州市| 江山市| 永清县| 中超| 麦盖提县| 岳阳市| 资阳市| 东山县| 伊宁县| 江北区| 丹阳市| 道孚县| 广河县| 房产| 塔城市|