冰雷达探测研究南极冰盖的进展与展望

被引:28
作者
崔祥斌 [1 ,2 ]
孙波 [2 ]
田钢 [1 ]
蒋芸芸 [2 ]
张向培 [2 ]
郭井学 [2 ]
唐学远 [2 ]
机构
[1] 浙江大学理学院地球科学系
[2] 中国极地研究中心
关键词
冰雷达; 南极冰盖; 等时层; 冰下湖; 冰晶组构;
D O I
暂无
中图分类号
P225.1 [无线电测距];
学科分类号
摘要
南极冰盖是地球上最大的陆缘冰体,其物质收支和稳定性对全球气候变化和海平面升高有重要的影响。冰雷达,或称无线电回波探测,是冰川学家调查南极冰盖冰下特征的主要方法。在过去的50年里,冰雷达被广泛用于测量冰盖厚度、内部构造和冰下地貌,这些参数是计算冰盖体积和物质平衡、重建过去冰雪积累和消融率以及冰盖动力和沉积过程的基础。现在,冰雷达测量覆盖了南极绝大部分区域,极大地提升了人们对南极冰盖和全球系统间相互作用的理解。首先,简要介绍了冰雷达及其技术发展,然后着重评述了冰雷达在探测研究南极冰盖厚度和冰下地形、内部反射层、冰下湖和冰下水系、冰床粗糙度以及冰晶组构上的进展。最后,对未来冰雷达探测研究南极冰盖的前景进行了展望,并给出我国的现状。
引用
收藏
页码:392 / 402
页数:11
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