Nonextensive Dynamics of Drifting Sea Ice
نویسندگان
چکیده
منابع مشابه
Analysis of Drifting Dynamics
A method for the analysis of nonstationary time series with multiple modes of behaviour is presented. In particular, it is not only possible to detect a switching of dynamics but also a less abrupt, time consuming drift from one mode to another. This is achieved by an unsu-pervised algorithm for segmenting the data according to the modes and a subsequent search through the space of possible dri...
متن کاملSmoluchowski Coagulation Models Of Sea Ice Thickness 1 Distribution Dynamics
Sea ice thickness distributions display a ubiquitous exponential de-3 crease with thickness. This tail characterises the range of ice thickness produced 4 by mechanical redistribution of ice through the process of ridging, rafting, and 5 shearing. We investigate how well the thickness distribution can be simulated 6 by representing mechanical redistribution as a generalized stacking process. Su...
متن کاملUsing the material-point method to model sea ice dynamics
[1] The material-point method (MPM) is a numerical method for continuum mechanics that combines the best aspects of Lagrangian and Eulerian discretizations. The material points provide a Lagrangian description of the ice that models convection naturally. Thus properties such as ice thickness and compactness are computed in a Lagrangian frame and do not suffer from errors associated with Euleria...
متن کاملOn an efficient numerical method for modeling sea ice dynamics
A computationally efficient numerical method for the solution of nonlinear sea ice dynamics models employing viscous-plastic rheologies is presented. The method is based on a semi-implicit decoupling of the x and y ice momentum equations into a form having better convergence properties than the coupled equations. While this decoupled form also speeds up solutions employing point relaxation meth...
متن کاملImproving Multiyear Sea Ice Concentration Estimates with Sea Ice Drift
Multiyear ice (MYI) concentration can be retrieved from passive or active microwave remote sensing observations. One of the algorithms that combines both observations is the Environmental Canada Ice Concentration Extractor (ECICE). However, factors such as ridging, snow wetness and metamorphism can cause significant changes in brightness temperature and backscatter, leading to misidentification...
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: ISRN Oceanography
سال: 2013
ISSN: 2090-8989
DOI: 10.5402/2013/540407