Field Studies of Non-Linear Internal Waves in Lakes on the Globe
Field Studies of Non-Linear Internal Waves in Lakes on the Globe
复制标题
全球湖泊非线性内波的实地研究
DOI：
--
复制
发表时间：
2012
期刊：
影响因子：
--
通讯作者：
K. Hutter
中科院分区：
文献类型：
--
作者：
N. Filatov;A. Terzevik;R. Zdorovennov;V. Vlasenko;N. Stashchuk;K. Hutter
本章主要介绍国内外湖泊非线性内波野外研究中常用的实验技术。它由四个部分组成。第一部分概述了地球上许多湖泊的内波，并概述了常用的测量技术和收集结果的图形表示方法。第二部分更详细地介绍了实地观察的实验方法，其中大多数是侵入性的，但我们同样也讨论了现代遥感技术，这些技术开辟了有前途的，也许仍然具有挑战性的程序，可以更仔细地观察内波现象。更重要的是，考虑了表现模式的具体特征，即不同大小和形状的湖泊在各种环境条件下的非线性内波的产生和耗散。由于热力学过程和现象的范围要复杂得多，分层湖泊的水文气象条件（强迫）也要复杂得多，因此在大湖泊中规划非线性内波实验比在小湖泊中规划非线性内波实验更具挑战性。第三部分重点介绍了2004/2005年夏季奥涅戈湖的内波动力学及其内波响应，并在内波过程的背景下对两次夏季野外活动期间的数据进行了利用。本文详细介绍了为研究奥涅戈湖非线性内波的产生和耗散而进行的现场实验。第四节将这些数据与非线性波模型进行比较，使本章关于奥涅戈湖内波的内容更加完善。
This chapter is devoted to the experimental techniques commonly applied in field studies of nonlinear internal waves in lakes of the world. It consists of four sections. The first attempts an overview of internal waves in many lakes on the globe and provides a summarising sketch of common measuring techniques and methods of graphical representation of collected results. The second takes a closer view on experimental methods of field observation, most being invasive, but we equally also address the modern remote-sensing techniques, which open promising, perhaps still challenging, procedures allowing a closer look at internal wave phenomena. More substantially, the specific features of the patterns of manifestation, i.e., generation and dissipation of nonlinear internal waves in lakes of different size and shape under various sets of environmental conditions, are considered. It is shown that planning experiments on nonlinear internal waves in large lakes are a far more challenging task than for smaller lakes since the range of thermodynamic processes and phenomena is much more complex, and so is the set of hydro-meteorological conditions (forcing) in stratified lakes. The third section focuses on internal wave dynamics of Lake Onego and its internal wave response during the summers of 2004/2005 and presents an exploitation of the data during the two summer field campaigns in the context of internal wave processes. The field experiments performed with the intention to investigate the generation and dissipation of nonlinear internal waves in Lake Onego are described in detail. These data are in the fourth section compared with models of nonlinear waves, which rounds out this chapter on internal waves in Lake Onego.