منابع مشابه
Energetics and damping of basin-scale internal waves in a strongly stratified lake
Energetics and damping of basin-scale internal waves and subsequent near-bottom transport processes in Lake Kinneret were investigated using the modal analysis in a layer-stratified irregular basin. The theory was extended to include small linear damping, and energy budgets and damping rates of five dominant internal waves were extracted by fitting numerically calculated internal waves to isoth...
متن کاملNonmodal energetics of electromagnetic drift waves
The linear properties of an electromagnetic drift-wave model are examined. The linear system is non-normal in that its eigenvectors are not orthogonal with respect to the energy inner product. The non-normality of the linear evolution operator can lead to enhanced finite-time growth rates compared to modal growth rates. Previous work with an electrostatic drift-wave model found that nonmodal be...
متن کاملNonmodal energetics of resistive drift waves
The modal and nonmodal linear properties of the Hasegawa-Wakatani system are examined. This linear model for plasma drift waves is nonnormal in the sense of not having a complete set of orthogonal eigenvectors. A consequence of nonnormality is that finite-time nonmodal growth rates can be larger than modal growth rates. In this system, the nonmodal time-dependent behavior depends strongly on th...
متن کاملNonlinear internal waves in the South China Sea: Observation of the conversion of depression internal waves to elevation internal waves
[1] The conversion of depression nonlinear internal solitons to elevation internal waves has been observed twice at the South China Sea continental shelf break. Shipboard X-band radar, tow-yo CTD, ADCP and high frequency acoustic flow visualization of the process are presented. The data focuses on up slope propagation of depression internal solitons from a water depth of 264 m to a water depth ...
متن کاملInternal waves revisited
We describe a new laboratory technique that has been developed to examine the structure and amplitude of internal waves. As well as being relatively inexpensive to set up, the technique is sensitive to small density fluctuations: heat rising from a hand can easily be seen. If the internal wave field is uniform across the span of the tank, then the density gradient field can be measured non-intr...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Geophysical Research: Oceans
سال: 1997
ISSN: 0148-0227
DOI: 10.1029/96jc03558