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北半球冰盖融化与北半球低温暴雪的相关性
  • ISSN号:1004-2903
  • 期刊名称:《地球物理学进展》
  • 时间:0
  • 分类:P46[天文地球—大气科学及气象学]
  • 作者机构:[1]吉林大学古生物学与地层学研究中心,长春130026, [2]吉林大学东北亚生物演化与环境教育部重点实验室,长春130026, [3]吉林大学地球探测科学与技术学院,长春130026
  • 相关基金:中央高校基本科研业务费专项资金和国家自然科学基金项目(49774228)资助.
中文摘要:

2006-2013年北半球频遭低温暴雪袭击.引力模型的计算结果表明:北极冰盖大量融化导致北极地区海平面和大气等位面的大幅度下降,压力变化迫使北极地区冷水和冷空气流向北半球中低纬度地区.太平洋海温下降导致全球变暖停止.极地冰盖融化后全球海平面都将上升,这是一个错误的观点.最新模型研究表明,如果格林兰冰盖融化可导致其附近海平面将下降100 m,北苏格兰的海平面将下降3 m,冰岛周围海平面将下降10 m,南美部分地区海平面将上升10 m.冰盖融化导致地表巨量物质转移,改变了地球内外重力场,地球内核南移100 m,北极和南极海平面分别下降和上升7 cm.在海平面附近,大气等位面的变化幅度与海平面变化幅度非常接近.近期北极海冰和冰盖的融化只是最新模型的一个缩影.北极大量冷水和冷空气在下降等位面的压力下流过北半球中低纬度地区,导致北半球频遭低温暴雪袭击.在“全球变暖间断”现象持续了长达16年之后,科学家正全力探究“全球变暖间断”现象背后的深层次原因.最新研究指出,1997-1998年赤道太平洋进入一个持续很久的低温状态,抑制了全球变暖的速度.海水温度的波动被称作拉马德雷现象(PDO),这种现象是解开“间断”谜团的关键.

英文摘要:

Northern hemisphere was attacked frequently by low temperature and snowstorm from 2006 to 2013. The calculation results of gravity model show that much melting of Arctic ice sheets leads to the decrease of sea level and equipotential surface atmospheric in Arctic area, the cold water and cold air in Arctic area flow to the mid-low latitudes of Northern hemisphere. Recent global-warming hiatus tied to equatorial Pacific surface cooling.It is wrong that sea level will rise everywhere as the ice sheets melt. If Greenland's ice were to go completely, the sea around Greenland would subside more than 100 m. Around northern Scotland it would fall by 3 m. Around Iceland it would fall by 10 m. Around Southern America it would rise of up to 10 m. Large mass on Earth's surface is moved by the melting of ice sheets, which changes gravity field of Earth, the inner core moves to south 100 m, the sea level of Arctic and Antarctic are fall and rise 7cm, respectively. The change ranges of equipotential surface atmospheric are very close to those of sea level around sea area. Arctic sea ice and the melting of ice sheets are epitome of the latest model. The cold water and cold air in Arctic flow to mid-low latitudes of Northern hemisphere under the press of falling equipotential surface, which result in Northern hemisphere is attacked frequently by low temperature and snowstorm. Now, as the global-warming hiatus enters its sixteenth year, scientists are at last making headway in the case of the missing heat. In 1997-1998, the equatorial Pacific is into a prolonged cold state that has suppressed global temperatures ever since. This variation in ocean temperature, known as the Pacific Decadal Oscillation (PDO), may be a crucial piece of the hiatus puzzle.

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期刊信息
  • 《地球物理学进展》
  • 北大核心期刊(2011版)
  • 主管单位:中国科学院
  • 主办单位:中国科学院地质与地球物理研究所 中国地球物理学会
  • 主编:刘光鼎
  • 地址:北京市9825信箱
  • 邮编:100029
  • 邮箱:prog@mail.igcas.ac.cn
  • 电话:010-82998113 62369620
  • 国际标准刊号:ISSN:1004-2903
  • 国内统一刊号:ISSN:11-2982/P
  • 邮发代号:
  • 获奖情况:
  • 国内外数据库收录:
  • 日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊(2004版),中国北大核心期刊(2008版),中国北大核心期刊(2011版),中国北大核心期刊(2014版)
  • 被引量:18579